{"id":4035,"date":"2024-02-14T21:06:01","date_gmt":"2024-02-14T13:06:01","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=4035"},"modified":"2023-12-05T15:56:27","modified_gmt":"2023-12-05T07:56:27","slug":"%e8%87%aa%e5%ae%9a%e4%b9%89%e6%8e%a7%e5%88%b6%e5%99%a8%e5%92%8c%e6%8e%a7%e5%88%b6%e5%99%a8%e6%89%a9%e5%b1%95","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=4035","title":{"rendered":"\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55"},"content":{"rendered":"\n<p>\u6807\u51c6\u63a7\u5236\u5668\u53ef\u4ee5\u63d0\u4f9b Visualforce \u9875\u9762\u6240\u9700\u7684\u6240\u6709\u529f\u80fd \u56e0\u4e3a\u5b83\u4eec\u5305\u542b\u7528\u4e8e\u6807\u51c6\u9875\u9762\u7684\u76f8\u540c\u903b\u8f91\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60 \u4f7f\u7528\u6807\u51c6\u5e10\u6237\u63a7\u5236\u5668\uff0c\u5355\u51fb<strong><\/strong>&nbsp;Visualforce \u9875\u9762\u4ea7\u751f\u7684\u884c\u4e3a<strong>\u4e0e\u5728<\/strong>&nbsp;\u6807\u51c6\u5e10\u6237\u7f16\u8f91\u9875\u9762\u3002\u4f46\u662f\uff0c\u5982\u679c\u8981\u8986\u76d6\u73b0\u6709\u529f\u80fd\uff0c\u8bf7\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u81ea\u5b9a\u4e49\u5bfc\u822a \u5e94\u7528\u7a0b\u5e8f\uff0c\u4f7f\u7528\u6807\u6ce8\u6216 Web \u670d\u52a1\uff0c\u6216\u8005\u5982\u679c\u60a8\u9700\u8981\u66f4\u7cbe\u7ec6\u5730\u63a7\u5236\u65b9\u5f0f \u8bbf\u95ee\u9875\u9762\u7684\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u7f16\u5199\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668 \u4f7f\u7528 Apex \u7684\u6269\u5c55\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ec0\u4e48\u662f\u81ea\u5b9a\u4e49 \u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\uff1f<\/li>\n\n\n\n<li>\u6784\u5efa\u81ea\u5b9a\u4e49 \u63a7\u5236\u5668<\/li>\n\n\n\n<li>\u6784\u5efa\u4e00\u4e2a \u63a7\u5236\u5668\u6269\u5c55<\/li>\n\n\n\n<li>\u63a7\u5236\u5668 \u65b9\u6cd5<\/li>\n\n\n\n<li>Controller \u7c7b \u5b89\u5168<\/li>\n\n\n\n<li>\u8003\u8651 \u7528\u4e8e\u521b\u5efa\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55<\/li>\n\n\n\n<li>\u6267\u884c\u987a\u5e8f \u5728 Visualforce \u9875\u9762\u4e2d<\/li>\n\n\n\n<li>\u6d4b\u8bd5\u81ea\u5b9a\u4e49 \u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55<\/li>\n\n\n\n<li>\u9a8c\u8bc1\u89c4\u5219 \u548c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668<\/li>\n\n\n\n<li>\u4f7f\u7528\u00a0<samp>transient<\/samp>\u00a0\u5173\u952e\u5b57<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\uff1f<\/h1>\n\n\n\n<p><dfn>\u81ea\u5b9a\u4e49\u63a7\u5236\u5668<\/dfn>\u662f\u4e00\u4e2a Apex \u7c7b\uff0c\u7528\u4e8e\u5b9e\u73b0\u9875\u9762\u7684\u6240\u6709\u903b\u8f91 \u65e0\u9700\u4f7f\u7528\u6807\u51c6\u63a7\u5236\u5668\u3002\u5f53\u60a8\u5e0c\u671b Visualforce \u9875\u9762\u5b8c\u5168\u5728\u7cfb\u7edf\u4e2d\u8fd0\u884c\u65f6\uff0c\u8bf7\u4f7f\u7528\u81ea\u5b9a\u4e49\u63a7\u5236\u5668 \u6a21\u5f0f\uff0c\u8be5\u6a21\u5f0f\u4e0d\u5f3a\u5236\u6267\u884c\u5f53\u524d\u7528\u6237\u7684\u6743\u9650\u548c\u5b57\u6bb5\u7ea7\u5b89\u5168\u6027\u3002<dfn>\u63a7\u5236\u5668\u6269\u5c55<\/dfn>\u662f\u4e00\u4e2a Apex \u7c7b\uff0c\u5b83\u6269\u5c55\u4e86 \u6807\u51c6\u6216\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u3002\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\u4f7f\u7528\u63a7\u5236\u5668\u6269\u5c55\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u60a8\u5e0c\u671b\u5229\u7528\u6807\u51c6\u63a7\u5236\u5668\u7684\u5185\u7f6e\u529f\u80fd\uff0c\u4f46\u8981\u8986\u76d6\u4e00\u4e2a\u6216 \u66f4\u591a\u64cd\u4f5c\uff0c\u4f8b\u5982\u7f16\u8f91\u3001\u67e5\u770b\u3001\u4fdd\u5b58\u6216\u5220\u9664\u3002<\/li>\n\n\n\n<li>\u60a8\u60f3\u8981\u6dfb\u52a0\u65b0\u64cd\u4f5c\u3002<\/li>\n\n\n\n<li>\u60a8\u60f3\u8981\u6784\u5efa Visualforce \u9875\u9762 \u5c0a\u91cd\u7528\u6237\u6743\u9650\u3002\u5c3d\u7ba1\u63a7\u5236\u5668\u6269\u5c55\u7c7b\u5728\u7cfb\u7edf\u6a21\u5f0f\u4e0b\u6267\u884c\uff0c \u5982\u679c\u63a7\u5236\u5668\u6269\u5c55\u6269\u5c55\u6807\u51c6\u63a7\u5236\u5668\uff0c\u5219\u6765\u81ea\u6807\u51c6\u63a7\u5236\u5668\u7684\u903b\u8f91 \u4e0d\u5728\u7cfb\u7edf\u6a21\u5f0f\u4e0b\u6267\u884c\u3002\u76f8\u53cd\uff0c\u5b83\u5728\u7528\u6237\u6a21\u5f0f\u4e0b\u6267\u884c\uff0c\u5176\u4e2d\u6743\u9650\uff0c \u5b57\u6bb5\u7ea7\u5b89\u5168\u6027\uff0c\u5e76\u5e94\u7528\u5f53\u524d\u7528\u6237\u7684\u5171\u4eab\u89c4\u5219\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\u7c7b\u5728 \u7cfb\u7edf\u6a21\u5f0f\uff0c\u56e0\u6b64\u5b83\u4eec\u4f1a\u5ffd\u7565\u7528\u6237\u6743\u9650\u548c\u5b57\u6bb5\u7ea7\u5b89\u5168\u6027\u3002\u4f46\u662f\uff0c\u60a8\u53ef\u4ee5 \u9009\u62e9\u662f\u5426\u9075\u5faa\u7528\u6237\u5728\u7ec4\u7ec7\u8303\u56f4\u5185\u7684\u9ed8\u8ba4\u503c\u3001\u89d2\u8272\u5c42\u6b21\u7ed3\u6784\u548c\u5171\u4eab \u89c4\u5219\uff0c\u65b9\u6cd5\u662f\u4f7f\u7528 \u7c7b\u5b9a\u4e49\u3002\u6709\u5173\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u300a\u4f7f\u7528 \u3001 \u548c\u5173\u952e\u5b57\u300b\u4e2d\u7684\u201c\u4f7f\u7528\u00a0Apex \u5f00\u53d1\u4eba\u5458 \u6307\u5357\u3002<samp>with sharingwith sharingwithout sharinginherited sharing<\/samp><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u6784\u5efa\u81ea\u5b9a\u4e49\u63a7\u5236\u5668<\/h1>\n\n\n\n<p>\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u662f\u4f7f\u7528\u9ed8\u8ba4\u7684\u65e0\u53c2\u6570\u6784\u9020\u51fd\u6570\u7684 Apex \u7c7b \u5bf9\u4e8e\u5916\u90e8\u7684\u9876\u7ea7\u7c7b\u3002\u4e0d\u80fd\u521b\u5efa \u5305\u62ec\u53c2\u6570\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728\u201c\u8bbe\u7f6e\u201d\u4e2d\uff0c\u5728\u201c\u5feb\u901f\u201d\u4e2d\u8f93\u5165&nbsp;<kbd>Apex \u7c7b<\/kbd>&nbsp;\u201c\u67e5\u627e\u201d\u6846\uff0c\u7136\u540e\u9009\u62e9<strong>\u201cApex \u7c7b<\/strong>\u201d\u3002<\/li>\n\n\n\n<li>\u5355\u51fb<strong>\u201c\u65b0\u5efa<\/strong>\u201d\u3002<\/li>\n\n\n\n<li>\u5355\u51fb<strong>\u201c\u7248\u672c\u8bbe\u7f6e<\/strong>\u201d\u4ee5\u6307\u5b9a Apex \u7684\u7248\u672c \u4ee5\u53ca\u4e0e\u6b64\u7c7b\u4e00\u8d77\u4f7f\u7528\u7684 API\u3002\u5982\u679c\u60a8\u7684\u7ec4\u7ec7\u5df2\u5b89\u88c5\u6258\u7ba1 \u8f6f\u4ef6\u5305\uff0c\u60a8\u8fd8\u53ef\u4ee5\u6307\u5b9a\u6bcf\u4e2a\u8f6f\u4ef6\u5305\u7684\u7248\u672c \u7528\u4e8e\u6b64\u7c7b\u7684\u6258\u7ba1\u5305\u3002\u5bf9\u6240\u6709\u7248\u672c\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002 \u8fd9\u4f1a\u5c06\u8be5\u7c7b\u4e0e\u6700\u65b0\u7248\u672c\u7684 Apex \u548c API \u76f8\u5173\u8054\uff0c\u5982\u4e0b\u6240\u793a \u4ee5\u53ca\u6bcf\u4e2a\u6258\u7ba1\u5305\u3002\u60a8\u53ef\u4ee5\u6307\u5b9a\u65e7\u7248\u672c\u7684\u6258\u7ba1 \u8f6f\u4ef6\u5305\uff0c\u5982\u679c\u60a8\u8981\u8bbf\u95ee\u4e0e \u6700\u65b0\u7684\u5305\u7248\u672c\u3002\u60a8\u53ef\u4ee5\u6307\u5b9a\u65e7\u7248\u672c\u7684 Apex \u548c \u7528\u4e8e\u7ef4\u62a4\u7279\u5b9a\u884c\u4e3a\u7684 API\u3002<\/li>\n\n\n\n<li>\u5728\u7c7b\u7f16\u8f91\u5668\u4e2d\uff0c\u8f93\u5165\u7c7b\u7684 Apex \u4ee3\u7801\u3002\u5355\u4e2a\u7c7b\u53ef\u4ee5\u662f \u957f\u5ea6\u4e0d\u8d85\u8fc7 100 \u4e07\u4e2a\u5b57\u7b26\uff0c\u4e0d\u5305\u62ec\u6ce8\u91ca\u3001\u6d4b\u8bd5\u65b9\u6cd5\u6216 \u4f7f\u7528&nbsp;<samp>@isTest<\/samp>&nbsp;\u5b9a\u4e49\u7684\u7c7b\u3002<\/li>\n\n\n\n<li>\u5355\u51fb<strong>\u201c<\/strong>\u4fdd\u5b58\u201d\u4ee5\u4fdd\u5b58\u66f4\u6539\u5e76\u8fd4\u56de\u5230\u8bfe\u7a0b \u8be6\u7ec6\u4fe1\u606f\u5c4f\u5e55\uff0c\u6216\u5355\u51fb<strong>\u201c\u5feb\u901f<\/strong>\u4fdd\u5b58\u201d\u4ee5\u4fdd\u5b58\u66f4\u6539 \uff0c\u7136\u540e\u7ee7\u7eed\u7f16\u8f91\u60a8\u7684\u8bfe\u7a0b\u3002\u60a8\u7684 Apex \u7c7b\u5fc5\u987b\u6b63\u786e\u7f16\u8bd1\u624d\u80fd \u60a8\u53ef\u4ee5\u4fdd\u5b58\u60a8\u7684\u8bfe\u7a0b\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f8b<\/h2>\n\n\n\n<p>\u4e0b\u9762\u7684\u7c7b\u662f\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7684\u7b80\u5355\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class MyController {\n\n    private final Account account;\n\n    public MyController() {\n        account = &#91;SELECT Id, Name, Site FROM Account \n                   WHERE Id = :ApexPages.currentPage().getParameters().get('id')];\n    }\n\n    public Account getAccount() {\n        return account;\n    }\n\n    public PageReference save() {\n        update account;\n        return null;\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b Visualforce \u6807\u8bb0\u663e\u793a\u4e86\u5982\u4f55\u5728 \u4e00\u9875\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"myController\" tabStyle=\"Account\"&gt;\n    &lt;apex:form&gt;\n        &lt;apex:pageBlock title=\"Congratulations {!$User.FirstName}\"&gt;\n            You belong to Account Name: &lt;apex:inputField value=\"{!account.name}\"\/&gt;\n            &lt;apex:commandButton action=\"{!save}\" value=\"save\"\/&gt;\n        &lt;\/apex:pageBlock&gt;\n    &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u7531\u4e8e\u7ec4\u4ef6\u7684\u5c5e\u6027\uff0c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u4e0e\u9875\u9762\u76f8\u5173\u8054\u3002<samp>controller<\/samp><samp>&lt;apex:page&gt;<\/samp><\/p>\n\n\n\n<p>\u4e0e\u6807\u51c6\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\u4e00\u6837\uff0c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u65b9\u6cd5\u53ef\u4ee5 \u7528\u7b26\u53f7\u5f15\u7528 \u5173\u8054\u7684\u9875\u9762\u6807\u8bb0\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u8be5\u65b9\u6cd5\u7531\u6807\u8bb0\u7684\u5c5e\u6027\u5f15\u7528\uff0c\u800c\u6807\u8bb0\u4f7f\u7528\u5176\u5c5e\u6027\u5f15\u7528\u8be5\u65b9\u6cd5\u3002<samp>{! }<\/samp><samp>getAccount<\/samp><samp>&lt;apex:inputField&gt;<\/samp><samp>value<\/samp><samp>&lt;apex:commandButton&gt;<\/samp><samp>save<\/samp><samp>action<\/samp><\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u4e0e\u5176\u4ed6 Apex \u7c7b\u4e00\u6837\uff0c\u6240\u6709\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u90fd\u5728\u7cfb\u7edf\u6a21\u5f0f\u4e0b\u8fd0\u884c\u3002<a><\/a>\u56e0\u6b64\uff0c\u5f53\u524d\u7528\u6237\u7684\u51ed\u636e\u4e0d\u7528\u4e8e \u6267\u884c\u63a7\u5236\u5668\u903b\u8f91\uff0c\u7528\u6237\u6743\u9650\u548c\u5b57\u6bb5\u7ea7\u5b89\u5168\u6027\u6267\u884c \u4e0d\u9002\u7528\u3002<\/p>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u9009\u62e9\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u662f\u5426\u9075\u5faa\u7528\u6237\u7684 \u4f7f\u7528\u7c7b\u4e2d\u7684\u5173\u952e\u5b57\u7684\u7ec4\u7ec7\u8303\u56f4\u7684\u9ed8\u8ba4\u503c\u3001\u89d2\u8272\u5c42\u6b21\u7ed3\u6784\u548c\u5171\u4eab\u89c4\u5219 \u5b9a\u4e49\u3002<samp>with sharing<\/samp>\u6709\u5173\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u300a\u4f7f\u7528 \u3001 \u548c\u5173\u952e\u5b57\u300b\u4e2d\u7684\u201c\u4f7f\u7528\u00a0Apex \u5f00\u53d1\u4eba\u5458 \u6307\u5357\u3002<samp>with sharingwithout sharinginherited sharing<\/samp><\/p>\n\n\n\n<p>\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u8fd8\u53ef\u7528\u4e8e \u521b\u5efa\u65b0\u8bb0\u5f55\u3002\u4e3a \u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class NewAndExistingController {\n\n    public Account account { get; private set; }\n\n    public NewAndExistingController() {\n        Id id = ApexPages.currentPage().getParameters().get('id');\n        account = (id == null) ? new Account() : \n            &#91;SELECT Name, Phone, Industry FROM Account WHERE Id = :id];\n    }\n\n    public PageReference save() {\n        try {\n            upsert(account);\n        } catch(System.DMLException e) {\n            ApexPages.addMessages(e);\n            return null;\n        }\n        \/\/  After successful Save, navigate to the default view page\n        PageReference redirectSuccess = new ApexPages.StandardController(Account).view();\n        return (redirectSuccess);\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b Visualforce \u6807\u8bb0\u663e\u793a\u4e86\u5982\u4f55\u5728 \u4e00\u9875\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"NewAndExistingController\" tabstyle=\"Account\"&gt;\n    &lt;apex:form&gt;\n        &lt;apex:pageBlock mode=\"edit\"&gt;\n            &lt;apex:pageMessages\/&gt;\n            &lt;apex:pageBlockSection&gt;\n                &lt;apex:inputField value=\"{!account.name}\"\/&gt;\n                &lt;apex:inputField value=\"{!account.phone}\"\/&gt;\n                &lt;apex:inputField value=\"{!account.industry}\"\/&gt;\n            &lt;\/apex:pageBlockSection&gt;\n            &lt;apex:pageBlockButtons location=\"bottom\"&gt;\n                &lt;apex:commandButton value=\"Save\" action=\"{!save}\"\/&gt;\n            &lt;\/apex:pageBlockButtons&gt;\n        &lt;\/apex:pageBlock&gt;\n    &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u6784\u5efa\u63a7\u5236\u5668\u6269\u5c55<\/h1>\n\n\n\n<p>\u63a7\u5236\u5668\u6269\u5c55\u662f\u4efb\u4f55 Apex \u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u6784\u9020\u51fd\u6570\uff0c\u8be5\u6784\u9020\u51fd\u6570\u91c7\u7528\u5355\u4e2a \u7c7b\u578b\u4e3a \u6216 \u7684\u53c2\u6570\uff0c\u5176\u4e2d \u662f\u6240\u9700\u7684\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7684\u540d\u79f0 \u4ee5\u6269\u5c55\u3002<samp>ApexPages.StandardController<\/samp><var>CustomControllerName<\/var><var>CustomControllerName<\/var><\/p>\n\n\n\n<p>\u4e0b\u9762\u7684\u7c7b\u662f\u63a7\u5236\u5668\u6269\u5c55\u7684\u7b80\u5355\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class myControllerExtension {\n\n    private final Account acct;\n    \n    \/\/ The extension constructor initializes the private member\n    \/\/ variable acct by using the getRecord method from the standard\n    \/\/ controller.\n    public myControllerExtension(ApexPages.StandardController stdController) {\n        this.acct = (Account)stdController.getRecord();\n    }\n\n    public String getGreeting() {\n        return 'Hello ' + acct.name + ' (' + acct.id + ')';\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b Visualforce \u6807\u8bb0 \u663e\u793a\u4e86\u5982\u4f55\u5728\u9875\u9762\u4e2d\u4f7f\u7528\u4e0a\u9762\u7684\u63a7\u5236\u5668\u6269\u5c55\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page standardController=\"Account\" extensions=\"myControllerExtension\"&gt;\n    {!greeting} &lt;p\/&gt;\n    &lt;apex:form&gt;\n        &lt;apex:inputField value=\"{!account.name}\"\/&gt; &lt;p\/&gt;\n        &lt;apex:commandButton value=\"Save\" action=\"{!save}\"\/&gt;\n    &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u6269\u5c55\u4f7f\u7528\u7ec4\u4ef6\u7684\u5c5e\u6027\u4e0e\u9875\u9762\u76f8\u5173\u8054\u3002<samp>extensions<\/samp><samp>&lt;apex:page&gt;<\/samp><\/p>\n\n\n\n<p>\u4e0e\u6240\u6709\u63a7\u5236\u5668\u65b9\u6cd5\u4e00\u6837\uff0c\u63a7\u5236\u5668\u6269\u5c55\u65b9\u6cd5\u53ef\u4ee5\u5728\u9875\u9762\u6807\u8bb0\u4e2d\u4f7f\u7528\u8868\u793a\u6cd5\u8fdb\u884c\u5f15\u7528\u3002\u5728 \u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u8868\u8fbe\u5f0f \u9875\u9762\u9876\u90e8\u5f15\u7528\u4e86\u63a7\u5236\u5668\u6269\u5c55\u7684\u65b9\u6cd5\u3002<samp>{! }<\/samp><samp>{!greeting}<\/samp><samp>getGreeting<\/samp><\/p>\n\n\n\n<p>\u7531\u4e8e\u6b64\u6269\u5c55\u4e0e Account \u6807\u51c6\u63a7\u5236\u5668\u7ed3\u5408\u4f7f\u7528\uff0c\u56e0\u6b64 \u8fd8\u63d0\u4f9b\u6807\u51c6\u63a7\u5236\u5668\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u6807\u8bb0\u4e2d\u7684\u5c5e\u6027\u68c0\u7d22 \u4f7f\u7528\u6807\u51c6\u63a7\u5236\u5668\u529f\u80fd\u7684\u5e10\u6237\u3002\u540c\u6837\uff0c\u6807\u7b7e\u5f15\u7528\u6807\u51c6 account \u65b9\u6cd5\u53ca\u5176\u5c5e\u6027\u3002<samp>value<\/samp><samp>&lt;apex:inputField&gt;<\/samp><samp>&lt;apex:commandButton&gt;<\/samp><samp>save<\/samp><samp>action<\/samp>\u53ef\u4ee5\u901a\u8fc7\u9017\u53f7\u5206\u9694\u4e3a\u5355\u4e2a\u9875\u9762\u5b9a\u4e49\u591a\u4e2a\u63a7\u5236\u5668\u6269\u5c55 \u5217\u8868\u3002\u8fd9\u5141\u8bb8\u91cd\u5199\u5177\u6709\u76f8\u540c\u540d\u79f0\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5982\u679c \u4ee5\u4e0b\u9875\u9762 \u5b58\u5728\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page standardController=\"Account\" \n    extensions=\"ExtOne,ExtTwo\" showHeader=\"false\"&gt;\n    &lt;apex:outputText value=\"{!foo}\" \/&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u8ddf \u4ee5\u4e0b \u6269\u5c55\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class ExtOne {\n    public ExtOne(ApexPages.StandardController acon) { }\n\n    public String getFoo() {\n        return 'foo-One';\n    }\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>public class ExtTwo {\n    public ExtTwo(ApexPages.StandardController acon) { }\n\n    public String getFoo() {\n        return 'foo-Two';\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9 \u7ec4\u4ef6\u7684\u503c \u5448\u73b0\u4e3a .\u8986\u76d6\u7531\u4ee5\u4e0b\u4efb\u4e00\u56e0\u7d20\u5b9a\u4e49 \u65b9\u6cd5\u5728\u201c\u6700\u5de6\u8fb9\u201d\u6269\u5c55\u4e2d\u5b9a\u4e49\uff0c\u6216\u8005\u5728 \u5728\u9017\u53f7\u5206\u9694\u5217\u8868\u4e2d\u7684\u7b2c\u4e00\u4e2a\u3002\u56e0\u6b64\uff0c\u7684\u65b9\u6cd5\u8986\u76d6\u4e86 \u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p><samp>&lt;apex:outputText&gt;<\/samp><samp>foo-One<\/samp><samp>getFoo<\/samp><samp>ExtOne<\/samp><samp>ExtTwo<\/samp><\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u4e0e\u5176\u4ed6 Apex \u7c7b\u4e00\u6837\uff0c\u63a7\u5236\u5668\u6269\u5c55\u5728 \u7cfb\u7edf\u6a21\u5f0f\u3002\u56e0\u6b64\uff0c\u5f53\u524d\u7528\u6237\u7684\u51ed\u636e\u4e0d\u7528\u4e8e \u6267\u884c\u63a7\u5236\u5668\u903b\u8f91\uff0c\u7528\u6237\u6743\u9650\u548c\u5b57\u6bb5\u7ea7\u5b89\u5168\u6027\u6267\u884c \u4e0d\u9002\u7528\u3002\u7136\u800c \u5982\u679c\u63a7\u5236\u5668\u6269\u5c55\u6269\u5c55\u6807\u51c6\u63a7\u5236\u5668\uff0c\u5219\u6765\u81ea\u6807\u51c6\u63a7\u5236\u5668\u7684\u903b\u8f91 \u63a7\u5236\u5668\u4e0d\u5728\u7cfb\u7edf\u6a21\u5f0f\u4e0b\u6267\u884c\u3002\u76f8\u53cd\uff0c\u5b83\u5728\u7528\u6237\u6a21\u5f0f\u4e0b\u6267\u884c\uff0c\u5176\u4e2d \u5f53\u524d\u7528\u6237\u7684\u6743\u9650\u3001\u5b57\u6bb5\u7ea7\u5b89\u5168\u6027\u548c\u5171\u4eab\u89c4\u5219 \u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u9009\u62e9\u63a7\u5236\u5668\u6269\u5c55\u662f\u5426\u9075\u5faa\u7528\u6237\u7684 \u4f7f\u7528\u7c7b\u5b9a\u4e49\u4e2d\u7684\u5173\u952e\u5b57\u5b9e\u73b0\u7ec4\u7ec7\u8303\u56f4\u7684\u9ed8\u8ba4\u503c\u3001\u89d2\u8272\u5c42\u6b21\u7ed3\u6784\u548c\u5171\u4eab\u89c4\u5219\u3002 \u6709\u5173\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u300a\u4f7f\u7528 \u3001 \u548c\u5173\u952e\u5b57\u300b\u4e2d\u7684\u201c\u4f7f\u7528\u00a0Apex \u5f00\u53d1\u4eba\u5458 \u6307\u5357\u3002<samp>with sharingwith sharingwithout sharinginherited sharing<\/samp><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u6784\u5efa\u81ea\u5b9a\u4e49\u5217\u8868\u63a7\u5236\u5668<\/h1>\n\n\n\n<p>\u81ea\u5b9a\u4e49\u5217\u8868\u63a7\u5236\u5668\u7c7b\u4f3c\u4e8e\u6807\u51c6\u5217\u8868\u63a7\u5236\u5668\u3002\u81ea\u5b9a\u4e49\u5217\u8868 \u63a7\u5236\u5668\u53ef\u4ee5\u5b9e\u73b0\u60a8\u5b9a\u4e49\u7684 Apex \u903b\u8f91\uff0c\u4ee5\u663e\u793a\u6216\u64cd\u4f5c\u4e00\u7ec4 \u8bb0\u5f55\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4ee5\u4e0b\u81ea\u5b9a\u4e49\u5217\u8868\u63a7\u5236\u5668\uff0c\u57fa\u4e8e \u4e00\u4e2a SOQL \u67e5\u8be2\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class opportunityList2Con {\n    \/\/ ApexPages.StandardSetController must be instantiated\n    \/\/ for standard list controllers\n    public ApexPages.StandardSetController setCon {\n        get {\n            if(setCon == null) {\n                setCon = new ApexPages.StandardSetController(Database.getQueryLocator(\n                    &#91;SELECT Name, CloseDate FROM Opportunity]));\n            }\n            return setCon;\n        }\n        set;\n    }\n\n    \/\/ Initialize setCon and return a list of records\n    public List&lt;Opportunity&gt; getOpportunities() {\n        return (List&lt;Opportunity&gt;) setCon.getRecords();\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u8fd9 \u8fd4\u56de\u7684 sObject \u5217\u8868\u662f \u53d8\u3002\u4f8b\u5982\uff0c\u4f60\u4e0d\u80fd\u8c03\u7528\u5b83\u3002\u60a8\u53ef\u4ee5\u5bf9 \u5217\u8868\uff0c\u4f46\u65e0\u6cd5\u5411\u5217\u8868\u6dfb\u52a0\u9879\u76ee\u6216\u4ece\u5217\u8868\u4e2d\u5220\u9664\u9879\u76ee \u672c\u8eab\u3002<samp>getRecords()<\/samp><samp>clear()<\/samp>\u4ee5\u4e0b Visualforce \u6807\u8bb0 \u5c55\u793a\u4e86\u5982\u4f55\u5728 \u9875\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"opportunityList2Con\"&gt;\n    &lt;apex:pageBlock&gt;\n        &lt;apex:pageBlockTable value=\"{!opportunities}\" var=\"o\"&gt;\n            &lt;apex:column value=\"{!o.Name}\"\/&gt;\n            &lt;apex:column value=\"{!o.CloseDate}\"\/&gt;\n        &lt;\/apex:pageBlockTable&gt;\n    &lt;\/apex:pageBlock&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u60a8\u8fd8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u5217\u8868\u63a7\u5236\u5668\uff0c\u8be5\u63a7\u5236\u5668\u4f7f\u7528\u53cd\u8054\u63a5\u548c\u534a\u8054\u63a5\u4f5c\u4e3a SOQL \u67e5\u8be2\u3002\u4ee5\u4e0b\u4ee3\u7801\u662f\u4f5c\u4e3a\u5e10\u6237\u7684\u6269\u5c55\u5b9e\u73b0\u7684 \u6807\u51c6 \u63a7\u5236\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public with sharing class AccountPagination {\n    private final Account acct;  \n\n    \/\/ The constructor passes in the standard controller defined\n    \/\/ in the markup below\n    public AccountPagination(ApexPages.StandardSetController controller) {\n        this.acct = (Account)controller.getRecord(); \n    }    \n    \n    public ApexPages.StandardSetController accountRecords {\n        get {\n            if(accountRecords == null) {\n                accountRecords = new ApexPages.StandardSetController(\n                    Database.getQueryLocator(&#91;SELECT Name FROM Account WHERE Id NOT IN \n                        (SELECT AccountId FROM Opportunity WHERE IsClosed = true)]));\n            }\n            return accountRecords;\n        }\n        private set;\n    }\n    public List&lt;Account&gt; getAccountPagination() {\n         return (List&lt;Account&gt;) accountRecords.getRecords();\n    }  \n}<\/code><\/pre>\n\n\n\n<p>\u8fd9 \u663e\u793a\u8fd9\u4e9b\u8bb0\u5f55\u7684\u9875\u9762\u6df7\u5408\u4f7f\u7528\u6807\u51c6\u5217\u8868\u63a7\u5236\u5668\u64cd\u4f5c\uff0c\u4f46 \u4f9d\u8d56\u4e8e\u5faa\u73af\u8bbf\u95ee\u4ece\u81ea\u5b9a\u4e49\u5217\u8868\u8fd4\u56de\u7684\u8bb0\u5f55 \u63a7\u5236\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page standardController=\"Account\" recordSetVar=\"accounts\" extensions=\"AccountPagination\"&gt;\n    &lt;apex:pageBlock title=\"Viewing Accounts\"&gt;\n        &lt;apex:form id=\"theForm\"&gt;\n            &lt;apex:pageBlockSection &gt;\n                &lt;apex:dataList value=\"{!accountPagination}\" var=\"acct\" type=\"1\"&gt;\n                    {!acct.name}\n                &lt;\/apex:dataList&gt;\n            &lt;\/apex:pageBlockSection&gt;\n            &lt;apex:panelGrid columns=\"2\"&gt;\n                &lt;apex:commandLink action=\"{!previous}\"&gt;Previous&lt;\/apex:commandlink&gt;\n                &lt;apex:commandLink action=\"{!next}\"&gt;Next&lt;\/apex:commandlink&gt;\n            &lt;\/apex:panelGrid&gt;\n        &lt;\/apex:form&gt; \n    &lt;\/apex:pageBlock&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u63a7\u5236\u5668\u65b9\u6cd5<\/h1>\n\n\n\n<p>Visualforce \u6807\u8bb0\u53ef\u4ee5\u4f7f\u7528 \u4ee5\u4e0b\u7c7b\u578b\u7684\u63a7\u5236\u5668\u6269\u5c55\u548c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u884c\u52a8<\/li>\n\n\n\n<li>\u5438\u6c14\u5242<\/li>\n\n\n\n<li>\u4e8c\u4f20\u624b<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u64cd\u4f5c\u65b9\u6cd5<\/h2>\n\n\n\n<p><a><\/a>\u64cd\u4f5c\u65b9\u6cd5\u5728\u9875\u9762\u6267\u884c\u903b\u8f91\u6216\u5bfc\u822a\u65f6 \u4e8b\u4ef6\u53d1\u751f\uff0c\u4f8b\u5982\u5f53\u7528\u6237\u5355\u51fb\u6309\u94ae\u6216\u5c06\u9f20\u6807\u60ac\u505c\u5728 \u9875\u3002\u53ef\u4ee5\u901a\u8fc7\u5728\u4ee5\u4e0b\u53c2\u6570\u4e4b\u4e00\u7684\u53c2\u6570\u4e2d\u4f7f\u7528\u8868\u793a\u6cd5\u4ece\u9875\u9762\u6807\u8bb0\u4e2d\u8c03\u7528\u64cd\u4f5c\u65b9\u6cd5 \u6807\u7b7e\uff1a<samp>{! }<\/samp><samp>action<\/samp><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><samp>&lt;apex\uff1acommandButton><\/samp>\u00a0\u521b\u5efa\u4e00\u4e2a\u6309\u94ae\uff0c\u8be5\u6309\u94ae\u8c03\u7528 \u884c\u52a8<\/li>\n\n\n\n<li><samp>&lt;apex\uff1acommandLink><\/samp>\u00a0\u521b\u5efa\u4e00\u4e2a\u8c03\u7528\u64cd\u4f5c\u7684\u94fe\u63a5<\/li>\n\n\n\n<li><samp>&lt;apex\uff1aactionPoller><\/samp>\u00a0\u5b9a\u671f\u8c03\u7528\u64cd\u4f5c<\/li>\n\n\n\n<li><samp>&lt;apex\uff1aactionSupport><\/samp>\u00a0\u521b\u5efa\u4e00\u4e2a\u4e8b\u4ef6\uff08\u4f8b\u5982 \u201conclick\u201d\u3001\u201conmouseover\u201d\u7b49\uff09 \u547d\u540d\u7ec4\u4ef6\uff0c\u8c03\u7528\u64cd\u4f5c<\/li>\n\n\n\n<li><samp>&lt;apex\uff1aactionFunction><\/samp>\u00a0\u5b9a\u4e49\u4e86\u4e00\u4e2a\u65b0\u7684 JavaScript \u8c03\u7528\u64cd\u4f5c\u7684\u51fd\u6570<\/li>\n\n\n\n<li><samp>&lt;apex\uff1apage><\/samp>\u00a0\u8c03\u7528\u64cd\u4f5c \u52a0\u8f7d\u9875\u9762\u65f6<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5728\u201c\u751f\u6210\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u201d\u7684\u793a\u4f8b\u9875\u4e2d\uff0c\u63a7\u5236\u5668\u7684\u65b9\u6cd5 \u7531\u6807\u8bb0\u7684\u53c2\u6570\u8c03\u7528\u3002\u5176\u4ed6 \u5b9a\u4e49\u64cd\u4f5c\u65b9\u6cd5\u4e2d\u8ba8\u8bba\u4e86\u64cd\u4f5c\u65b9\u6cd5\u7684\u793a\u4f8b\u3002<samp>saveaction&lt;apex:commandButton><\/samp><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Getter \u65b9\u6cd5<\/h2>\n\n\n\n<p>Getter \u65b9\u6cd5\u4ece\u63a7\u5236\u5668\u8fd4\u56de\u503c\u3002\u6bcf\u4e2a\u503c \u7531\u63a7\u5236\u5668\u8ba1\u7b97\u5e76\u663e\u793a\u5728\u9875\u9762\u4e2d\u5fc5\u987b\u5177\u6709\u76f8\u5e94\u7684 getter \u65b9\u6cd5\uff0c\u5305\u62ec\u4efb\u4f55\u5e03\u5c14\u53d8\u91cf\u3002\u4f8b\u5982\uff0c\u5728\u751f\u6210\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7684\u793a\u4f8b\u9875\u4e2d\uff0c\u63a7\u5236\u5668\u5305\u542b\u4e00\u4e2a\u65b9\u6cd5\u3002\u6b64\u65b9\u6cd5\u5141\u8bb8\u9875\u9762\u6807\u8bb0\u5f15\u7528 \u5e26\u6709\u8868\u793a\u6cd5\u7684\u63a7\u5236\u5668\u7c7b\u3002\u6807\u8bb0\u7684\u53c2\u6570\u4f7f\u7528\u6b64\u8868\u793a\u6cd5\u6765 \u8bbf\u95ee\u5e10\u6237\uff0c\u5e76\u4f7f\u7528\u70b9\u8868\u793a\u6cd5\u663e\u793a\u5e10\u6237\u7684\u540d\u79f0\u3002Getter \u65b9\u6cd5 \u5fc5\u987b\u59cb\u7ec8\u547d\u540d\u4e3a \u3002<samp>getAccountaccount{! }value&lt;apex:inputField>get<var>Variable<\/var><\/samp><\/p>\n\n\n\n<p>\u91cd\u8981<\/p>\n\n\n\n<p>\u5b83 getter \u65b9\u6cd5\u7684\u6700\u4f73\u5b9e\u8df5\u662f<em>\u5e42\u7b49\u7684<\/em>\uff0c\u5373\u6ca1\u6709 \u526f\u4f5c\u7528\u3002\u4f8b\u5982\uff0c\u4e0d\u8981\u9012\u589e\u53d8\u91cf\uff0c\u5199\u65e5\u5fd7\u6d88\u606f\uff0c \u6216\u5c06\u65b0\u8bb0\u5f55\u6dfb\u52a0\u5230\u6570\u636e\u5e93\u3002Visualforce \u6ca1\u6709 \u5b9a\u4e49\u8c03\u7528 getter \u65b9\u6cd5\u7684\u987a\u5e8f\uff0c\u6216\u8005\u8c03\u7528\u5b83\u4eec\u7684\u6b21\u6570 \u5728\u5904\u7406\u8bf7\u6c42\u7684\u8fc7\u7a0b\u4e2d\u8c03\u7528\u3002\u8bbe\u8ba1 getter \u65b9\u6cd5\u4ee5\u4ea7\u751f \u76f8\u540c\u7684\u7ed3\u679c\uff0c\u65e0\u8bba\u5b83\u4eec\u88ab\u8c03\u7528\u4e00\u6b21\u8fd8\u662f\u591a\u6b21\u7528\u4e8e\u5355\u4e2a\u9875\u9762 \u8bf7\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Setter \u65b9\u6cd5<\/h2>\n\n\n\n<p>Setter \u65b9\u6cd5\u5c06\u7528\u6237\u6307\u5b9a\u7684\u503c\u4ece\u9875\u9762\u6807\u8bb0\u4f20\u9012\u7ed9 \u63a7\u5236\u5668\u3002\u63a7\u5236\u5668\u4e2d\u7684\u4efb\u4f55 setter \u65b9\u6cd5\u90fd\u4f1a\u5728 \u4efb\u4f55\u64cd\u4f5c\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u6807\u8bb0\u663e\u793a\u4e00\u4e2a\u9875\u9762 \u5b9e\u73b0 Leads \u7684\u57fa\u672c\u641c\u7d22\u529f\u80fd\u3002\u5173\u8054\u7684\u63a7\u5236\u5668\u5305\u62ec getter \u548c setter \u65b9\u6cd5\uff0c\u7136\u540e\u4f7f\u7528\u641c\u7d22\u6587\u672c\u6765 \u5f53\u7528\u6237\u5355\u51fb&nbsp;<strong>Go\uff01<\/strong>&nbsp;\u65f6\u53d1\u51fa SOSL \u67e5\u8be2\u3002\u867d\u7136 \u6807\u8bb0\u4e0d\u4f1a\u663e\u5f0f\u8c03\u7528\u641c\u7d22\u6587\u672c setter \u65b9\u6cd5\uff0c\u5b83\u4f1a\u6267\u884c \u5728\u64cd\u4f5c\u65b9\u6cd5\u4e4b\u524d\uff0c\u5f53 \u7528\u6237\u5355\u51fb\u547d\u4ee4 \u6309\u94ae\uff1a<samp>doSearch<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"theController\"&gt;\n   &lt;apex:form&gt;\n      &lt;apex:pageBlock mode=\"edit\" id=\"block\"&gt;\n         &lt;apex:pageBlockSection&gt;\n            &lt;apex:pageBlockSectionItem&gt;\n               &lt;apex:outputLabel for=\"searchText\"&gt;Search Text&lt;\/apex:outputLabel&gt;\n               &lt;apex:panelGroup&gt;\n                  &lt;apex:inputText id=\"searchText\" value=\"{!searchText}\"\/&gt;\n                  &lt;apex:commandButton value=\"Go!\" action=\"{!doSearch}\" \n                                      rerender=\"block\" status=\"status\"\/&gt;\n               &lt;\/apex:panelGroup&gt;\n            &lt;\/apex:pageBlockSectionItem&gt;\n        &lt;\/apex:pageBlockSection&gt;\n        &lt;apex:actionStatus id=\"status\" startText=\"requesting...\"\/&gt;\n        &lt;apex:pageBlockSection title=\"Results\" id=\"results\" columns=\"1\"&gt;\n           &lt;apex:pageBlockTable value=\"{!results}\" var=\"l\" \n                               rendered=\"{!NOT(ISNULL(results))}\"&gt;\n              &lt;apex:column value=\"{!l.name}\"\/&gt;\n              &lt;apex:column value=\"{!l.email}\"\/&gt;\n              &lt;apex:column value=\"{!l.phone}\"\/&gt;\n           &lt;\/apex:pageBlockTable&gt;\n        &lt;\/apex:pageBlockSection&gt;\n      &lt;\/apex:pageBlock&gt;\n   &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u8fd9 \u4ee5\u4e0b\u7c7b\u662f\u9875\u9762\u6807\u8bb0\u7684\u63a7\u5236\u5668 \u4ee5\u4e0a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class theController {\n\n    String searchText;\n    List&lt;Lead&gt; results;\n\n    public String getSearchText() {\n        return searchText;\n    }\n\n    public void setSearchText(String s) {\n        searchText = s;\n    }\n\n    public List&lt;Lead&gt; getResults() {\n        return results;\n    }\n\n    public PageReference doSearch() {\n        results = (List&lt;Lead&gt;)&#91;FIND :searchText RETURNING Lead(Name, Email, Phone)]&#91;0];\n        return null;\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u800c \u4ece\u63a7\u5236\u5668\u8bbf\u95ee\u503c\u59cb\u7ec8\u9700\u8981 getter \u65b9\u6cd5\uff0c\u5b83\u662f \u5e76\u4e0d\u603b\u662f\u9700\u8981\u5305\u542b setter \u65b9\u6cd5\u4ee5\u5c06\u503c\u4f20\u9012\u5230\u63a7\u5236\u5668\u4e2d\u3002\u5982\u679c Visualforce \u7ec4\u4ef6\u662f \u7ed1\u5b9a\u5230\u5b58\u50a8\u5728\u63a7\u5236\u5668\u4e2d\u7684 sObject\uff0csObject \u7684\u5b57\u6bb5\u4e3a \u5982\u679c\u7528\u6237\u66f4\u6539\uff0c\u5219\u81ea\u52a8\u8bbe\u7f6e\uff0c\u53ea\u8981\u4fdd\u5b58\u6216\u66f4\u65b0 sObject \u5373\u53ef \u901a\u8fc7\u76f8\u5e94\u7684\u52a8\u4f5c\u65b9\u6cd5\u3002\u793a\u4f8b\u4e2d\u663e\u793a\u4e86\u6b64\u884c\u4e3a\u7684\u793a\u4f8b\u00a0\u9875\u9762\u3002<\/p>\n\n\n\n<p>Setter \u65b9\u6cd5\u5fc5\u987b\u59cb\u7ec8\u547d\u540d\u4e3a \u3002<samp>set<var>Variable<\/var><\/samp><\/p>\n\n\n\n<p>\u91cd\u8981<\/p>\n\n\n\n<p>\u6700\u4f73\u505a\u6cd5\u662f setter \u65b9\u6cd5\u662f<em>\u5e42\u7b49<\/em>\u7684\uff0c\u5373\u6ca1\u6709\u526f\u4f5c\u7528\u3002\u4f8b\u5982\uff0c\u4e0d\u8981 \u9012\u589e\u53d8\u91cf\u3001\u5199\u5165\u65e5\u5fd7\u6d88\u606f\u6216\u5411\u6570\u636e\u5e93\u6dfb\u52a0\u65b0\u8bb0\u5f55\u3002Visualforce \u6ca1\u6709 \u5b9a\u4e49\u8c03\u7528 setter \u65b9\u6cd5\u7684\u987a\u5e8f\uff0c\u6216\u8005\u8c03\u7528\u5b83\u4eec\u7684\u6b21\u6570 \u5728\u5904\u7406\u8bf7\u6c42\u7684\u8fc7\u7a0b\u4e2d\u8c03\u7528\u3002\u8bbe\u8ba1 setter \u65b9\u6cd5\u4ee5\u4ea7\u751f \u76f8\u540c\u7684\u7ed3\u679c\uff0c\u65e0\u8bba\u5b83\u4eec\u88ab\u8c03\u7528\u4e00\u6b21\u8fd8\u662f\u591a\u6b21\u7528\u4e8e\u5355\u4e2a\u9875\u9762 \u8bf7\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a>\u4f7f\u7528\u81ea\u5b9a\u4e49\u6269\u5c55\u83b7\u53d6\u548c\u8bbe\u7f6e\u6570\u636e\uff0c\u6216\u8005 \u63a7\u5236\u5668<\/h2>\n\n\n\n<p>\u6709 \u65e0\u6cd5\u4fdd\u8bc1 Apex \u65b9\u6cd5\u548c\u53d8\u91cf\u7684\u5904\u7406\u987a\u5e8f \u63a7\u5236\u5668\u6269\u5c55\u6216\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u3002\u56e0\u6b64\uff0c\u4e0d\u5141\u8bb8\u63a7\u5236\u5668\u548c \u6269\u5c55\u7c7b\u4f9d\u8d56\u4e8e\u6b63\u5728\u8fd0\u884c\u7684\u53e6\u4e00\u4e2a\u65b9\u6cd5\uff0c\u8bf7\u76f4\u63a5\u8c03\u7528\u8be5\u65b9\u6cd5\u3002 \u8fd9\u7279\u522b\u9002\u7528\u4e8e\u8bbe\u7f6e\u53d8\u91cf\u548c\u4ece\u6570\u636e\u5e93\u8bbf\u95ee\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5728\u4ee5\u4e0b\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u65b9\u6cd5 \uff0c \u59cb\u7ec8\u8fd4\u56de\u6b63\u786e\u7684 \u503c\uff0c\u56e0\u4e3a\u5b83\u4e0d\u5047\u5b9a contact \u53d8\u91cf\u5df2\u5b58\u5728\u3002\u4f46\u662f\uff0c\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u6709\u65f6\u4f1a\u8fd4\u56de \u6b63\u786e\u7684\u503c\uff0c\u4f46\u4e0d\u662f\u6bcf\u6b21\u90fd\u6b63\u786e \u8bbe\u7f6e\u3002<samp>getContactMethod1<\/samp><samp>c<\/samp><samp>getContactMethod2<\/samp><samp>c<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class conVsBad {\n    Contact c;\n\n    public Contact getContactMethod1() {\n        if (c == null) c = &#91;SELECT Id, Name FROM Contact LIMIT 1];\n        return c;\n    }\n\n    public Contact getContactMethod2() {\n        return c;\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9 \u4ee5\u4e0b\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u5177\u6709\u5b8c\u5168\u76f8\u540c\u7684\u65b9\u6cd5\u3002\u4f46\u662f\uff0c\u8c03\u7528 \uff0c\u56e0\u6b64\u53d8\u91cf\u59cb\u7ec8\u88ab\u8bbe\u7f6e\uff0c\u5e76\u4e14\u59cb\u7ec8\u5305\u542b \u8fd4\u56de\u65f6\u7684\u503c\u6b63\u786e\u3002<samp>getContactMethod2<\/samp><samp>contactMethod1<\/samp><samp>c<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class conVsGood {\n    Contact c;\n\n    public Contact getContactMethod1() {\n        if(c == null) c = &#91;SELECT Id, Name FROM Contact LIMIT 1];\n        return c;\n    }\n\n    public Contact getContactMethod2() {\n        return getContactMethod1();\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9 \u4ee5\u4e0b\u6807\u8bb0\u663e\u793a\u8c03\u7528\u8fd9\u4e9b\u63a7\u5236\u5668\u7684\u4e24\u4e2a\u9875\u9762\u3002Visualforce \u6807\u8bb0\u662f \u76f8\u540c\uff0c\u53ea\u6709\u63a7\u5236\u5668\u540d\u79f0\u662f \u6539\u53d8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"conVsGood\"&gt;\n    getContactMethod2(): {!contactMethod2.name}&lt;br\/&gt;\n    getContactMethod1(): {!contactMethod1.name}\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"conVsBad\"&gt;\n    getContactMethod2(): {!contactMethod2.name}&lt;br\/&gt;\n    getContactMethod1(): {!contactMethod1.name}\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u63a7\u5236\u5668\u7c7b\u5b89\u5168\u6027<\/h1>\n\n\n\n<p>\u4e0e\u5176\u4ed6 Apex \u7c7b\u4e00\u6837\uff0c\u60a8\u53ef\u4ee5\u6307\u5b9a\u7528\u6237\u662f\u5426\u53ef\u4ee5\u5728\u81ea\u5b9a\u4e49\u4e2d\u6267\u884c\u65b9\u6cd5 \u63a7\u5236\u5668\u6216\u57fa\u4e8e\u7528\u6237\u914d\u7f6e\u6587\u4ef6\u7684\u63a7\u5236\u5668\u6269\u5c55\u7c7b\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u5982\u679c\u60a8\u5728\u7ec4\u7ec7\u4e2d\u5b89\u88c5\u4e86\u6258\u7ba1\u8f6f\u4ef6\u5305\uff0c\u5219\u53ea\u80fd\u4e3a Apex \u8bbe\u7f6e\u5b89\u5168\u6027 \u5305\u4e2d\u58f0\u660e\u4e3a \u6216 \u7684\u7c7b \u5bf9\u4e8e\u5305\u542b\u58f0\u660e\u4e3a \u7684\u65b9\u6cd5\u7684\u7c7b\u3002<samp>global<\/samp><samp>webService<\/samp><\/p>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u5177\u6709 Author Apex \u6743\u9650\uff0c\u5219\u53ef\u4ee5\u8bbf\u95ee\u6240\u6709 Apex \u5173\u8054\u7ec4\u7ec7\u4e2d\u7684\u7c7b\uff0c\u800c\u4e0d\u8003\u8651\u4e2a\u4eba\u7684\u5b89\u5168\u8bbe\u7f6e \u7c7b\u3002<\/p>\n\n\n\n<p>\u4ec5\u5728\u9876\u5c42\u68c0\u67e5 Apex \u7c7b\u7684\u6743\u9650\u3002\u4f8b\u5982\uff0c\u7c7b A \u8c03\u7528\u7c7b B. \u7528\u6237 X \u6709\u4e00\u4e2a\u53ef\u4ee5\u8bbf\u95ee A \u7c7b\u4f46\u4e0d\u80fd\u8bbf\u95ee B \u7c7b\u7684\u914d\u7f6e\u6587\u4ef6\u3002\u7528\u6237 X \u53ef\u4ee5\u5728 B\u7c7b\uff0c\u4f46\u53ea\u80fd\u901a\u8fc7A\u7c7b;\u7528\u6237 X \u4e0d\u80fd\u76f4\u63a5\u8c03\u7528\u7c7b B\u3002\u540c\u6837\uff0c\u5982\u679c Visualforce \u9875\u9762\u4f7f\u7528\u5e26\u6709\u5173\u8054\u63a7\u5236\u5668\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\uff0c\u4ec5\u68c0\u67e5\u5b89\u5168\u6027 \u7528\u4e8e\u4e0e\u9875\u9762\u5173\u8054\u7684\u63a7\u5236\u5668\u3002\u4e0e\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5173\u8054\u7684\u63a7\u5236\u5668 \u65e0\u8bba\u6743\u9650\u5982\u4f55\uff0c\u90fd\u4f1a\u6267\u884c\u3002<\/p>\n\n\n\n<p>\u8981\u4ece\u7c7b\u5217\u8868\u9875\u9762\u8bbe\u7f6e Apex \u7c7b\u5b89\u5168\u6027\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<p>\u4ece\u7c7b\u5217\u8868\u4e2d\u8bbe\u7f6e Apex \u7c7b\u8bbf\u95ee\u6743\u9650 \u9875<\/p>\n\n\n\n<p>\u8981\u4ece\u7c7b\u8be6\u7ec6\u4fe1\u606f\u9875\u9762\u8bbe\u7f6e Apex \u7c7b\u5b89\u5168\u6027\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a\u00a0\u4ece\u7c7b\u8be6\u7ec6\u4fe1\u606f\u8bbe\u7f6e Apex \u7c7b\u8bbf\u95ee\u6743\u9650 \u9875<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u5904\u7406\u5927\u578b\u6570\u636e\u96c6<\/h1>\n\n\n\n<p>Visualforce \u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c \u63a7\u5236\u5668\u6269\u5c55\u53d7 Apex \u8c03\u63a7\u5668\u9650\u5236\u7684\u7ea6\u675f\u3002\u6709\u5173\u8c03\u901f\u5668\u7684\u8be6\u7ec6\u4fe1\u606f \u9650\u5236\uff0c\u8bf7\u53c2\u9605\u6267\u884c\u8c03\u63a7\u5668\u548c\u9650\u5236\u3002\u6b64\u5916\uff0cVisualforce \u8fed\u4ee3\u7ec4\u4ef6\uff08\u5982 \u548c\uff09\u9650\u5236\u4e3a \u4e2d\u6700\u591a 1,000 \u4e2a\u9879\u76ee \u4ed6\u4eec\u8fed\u4ee3\u7684\u96c6\u5408\u3002<samp>&lt;apex:pageBlockTable>&lt;apex:repeat><\/samp><\/p>\n\n\n\n<p>\u6709\u65f6\uff0c\u60a8\u7684 Visualforce \u9875\u9762\u53ef\u80fd\u4f1a \u9700\u8981\u5904\u7406\u6216\u663e\u793a\u66f4\u5927\u7684\u6570\u636e\u96c6\uff0c\u4f46\u4e0d\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u4fee\u6539 \u6570\u636e;\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u8981\u63d0\u4f9b\u81ea\u5b9a\u4e49\u62a5\u544a\u548c\u5206\u6790\u3002Visualforce \u4e3a\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u4e86\u201d<a><\/a>\u53ea\u8bfb\u6a21\u5f0f\u201c\uff0c\u653e\u5bbd\u4e86\u5bf9\u6570\u91cf\u7684\u9650\u5236 \u53ef\u4ee5\u5728\u4e00\u4e2a\u8bf7\u6c42\u4e2d\u67e5\u8be2\u7684\u884c\uff0c\u5e76\u589e\u52a0\u5bf9\u6536\u96c6\u6570\u91cf\u7684\u9650\u5236 \u53ef\u4ee5\u5728\u9875\u9762\u5185\u8fed\u4ee3\u7684\u9879\u76ee\u3002\u60a8\u53ef\u4ee5\u4e3a\u6574\u4e2a\u9875\u9762\u6307\u5b9a\u53ea\u8bfb\u6a21\u5f0f\uff0c\u4e5f\u53ef\u4ee5\u5728\u6709\u67d0\u4e9b\u9650\u5236\u7684\u60c5\u51b5\u4e0b\u6307\u5b9a\u53ea\u8bfb\u6a21\u5f0f \u5355\u4e2a\u7ec4\u4ef6\u6216\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u53ea\u6709\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\uff0c\u624d\u80fd\u5faa\u73af\u8bbf\u95ee\u5927\u578b\u6570\u636e\u96c6 \u4e3a\u6574\u4e2a\u9875\u9762\u6307\u5b9a\u53ea\u8bfb\u6a21\u5f0f\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e3a\u6574\u4e2a\u9875\u9762\u8bbe\u7f6e\u53ea\u8bfb\u6a21\u5f0f<\/h1>\n\n\n\n<p>\u8981\u4e3a\u6574\u4e2a\u9875\u9762\u542f\u7528\u53ea\u8bfb\u6a21\u5f0f\uff0c\u8bf7\u5c06\u7ec4\u4ef6\u4e0a\u7684\u5c5e\u6027\u8bbe\u7f6e\u4e3a \u3002<\/p>\n\n\n\n<p><samp>readOnly<\/samp><samp>&lt;apex:page&gt;<\/samp><samp>true<\/samp><\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u4ee5\u53ea\u8bfb\u6a21\u5f0f\u5904\u7406\u7684\u7b80\u5355\u9875\u9762\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"SummaryStatsController\" readOnly=\"true\"&gt;\n    &lt;p&gt;Here is a statistic: {!veryLargeSummaryStat}&lt;\/p&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u6b64\u9875\u9762\u7684\u63a7\u5236\u5668\u4e5f\u5f88\u7b80\u5355\uff0c\u4f46\u8bf4\u660e\u4e86\u5982\u4f55 \u60a8\u53ef\u4ee5\u8ba1\u7b97\u5728\u9875\u9762\u4e0a\u663e\u793a\u7684\u6c47\u603b\u7edf\u8ba1\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class SummaryStatsController {\n    public Integer getVeryLargeSummaryStat() {\n        Integer closedOpportunityStats = \n            &#91;SELECT COUNT() FROM Opportunity WHERE Opportunity.IsClosed = true];\n        return closedOpportunityStats;\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u901a\u5e38\uff0c\u5bf9\u5355\u4e2a Visualforce \u9875\u9762\u8bf7\u6c42\u7684\u67e5\u8be2\u68c0\u7d22\u7684\u884c\u6570\u53ef\u80fd\u4e0d\u4f1a\u8d85\u8fc7 50,000 \u884c\u3002\u5728\u53ea\u8bfb\u6a21\u5f0f\u4e0b\uff0c\u6b64\u9650\u5236\u5df2\u653e\u5bbd\uff0c\u6700\u591a\u5141\u8bb8\u67e5\u8be2 1,000,000 \u884c\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u67e5\u8be2\u66f4\u591a\u884c\u4e4b\u5916\uff0c\u8be5\u5c5e\u6027\u8fd8\u589e\u52a0\u4e86\u96c6\u5408\u4e2d\u53ef\u4ee5 \u4f7f\u7528 \u3001 \u548c \u7b49\u7ec4\u4ef6\u8fdb\u884c\u8fed\u4ee3\u3002\u6b64\u9650\u5236\u4ece 1,000 \u589e\u52a0\u5230 \u9879\u76ee\u5230 10,000\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u63a7\u5236\u5668\u548c\u9875\u9762\u6f14\u793a\uff1a<samp>readOnly<\/samp><samp>&lt;apex:dataTable&gt;<\/samp><samp>&lt;apex:dataList&gt;<\/samp><samp>&lt;apex:repeat&gt;<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class MerchandiseController {\n\n    public List&lt;Merchandise__c&gt; getAllMerchandise() {\n        List&lt;Merchandise__c&gt; theMerchandise = \n            &#91;SELECT Name, Price__c FROM Merchandise__c LIMIT 10000];\n        return(theMerchandise);\n    }\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"MerchandiseController\" readOnly=\"true\"&gt;\n    &lt;p&gt;Here is all the merchandise we have:&lt;\/p&gt;\n    &lt;apex:dataTable value=\"{!AllMerchandise}\" var=\"product\"&gt;\n        &lt;apex:column&gt;\n            &lt;apex:facet name=\"header\"&gt;Product&lt;\/apex:facet&gt;\n            &lt;apex:outputText value=\"{!product.Name}\" \/&gt;\n        &lt;\/apex:column&gt;\n        &lt;apex:column&gt;\n            &lt;apex:facet name=\"header\"&gt;Price&lt;\/apex:facet&gt;\n            &lt;apex:outputText value=\"{!product.Price__c}\" \/&gt;\n        &lt;\/apex:column&gt;\n    &lt;\/apex:dataTable&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u867d\u7136\u5bf9\u6574\u4e2a\u9875\u9762\u4f7f\u7528\u53ea\u8bfb\u6a21\u5f0f\u7684 Visualforce \u9875\u9762\u4e0d\u80fd\u4f7f\u7528\u6570\u636e\u64cd\u4f5c\u8bed\u8a00 \uff08DML\uff09 \u64cd\u4f5c\uff0c \u5b83\u4eec\u53ef\u4ee5\u8c03\u7528\u5f71\u54cd\u8868\u5355\u548c\u5176\u4ed6\u7528\u6237\u7684 getter\u3001setter \u548c action \u65b9\u6cd5 \u754c\u9762\u5143\u7d20\uff0c\u8fdb\u884c\u5176\u4ed6\u53ea\u8bfb\u67e5\u8be2\uff0c\u4f9d\u6b64\u7c7b\u63a8\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e3a\u63a7\u5236\u5668\u65b9\u6cd5\u8bbe\u7f6e\u53ea\u8bfb\u6a21\u5f0f<\/h1>\n\n\n\n<p>Visualforce \u63a7\u5236\u5668\u65b9\u6cd5 \u53ef\u4ee5\u4f7f\u7528 Apex \u6ce8\u91ca\uff0c\u4f46\u6709\u4e00\u4e9b\u91cd\u8981\u7684\u9650\u5236\uff0c\u5373\u4f7f\u9875\u9762\u672c\u8eab\u4e0d\u662f\u53ea\u8bfb\u6a21\u5f0f\u3002<\/p>\n\n\n\n<p><samp>ReadOnly<\/samp>\u5e26\u6709\u6ce8\u91ca\u7684 Visualforce \u63a7\u5236\u5668\u65b9\u6cd5\u4f1a\u81ea\u52a8\u5229\u7528\u53ea\u8bfb\u6a21\u5f0f\u3002 \u4f46\u662f\uff0c\u5bf9\u6ce8\u91ca\u7684\u9650\u5236\u610f\u5473\u7740 \u5bf9\u4e8e Visualforce \u63a7\u5236\u5668\u65b9\u6cd5\uff0c \u53ea\u8bfb\u65b9\u6cd5\u4e5f\u5fc5\u987b\u5177\u6709\u6279\u6ce8\u3002\u6ce8\u89e3\u8981\u6c42 \u65b9\u6cd5\u662f\uff1a<\/p>\n\n\n\n<p><samp>@ReadOnly<\/samp><samp>@ReadOnly<\/samp><samp>@RemoteAction<\/samp><samp>@RemoteAction<\/samp><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Either \u6216<samp>global<\/samp><samp>public<\/samp><\/li>\n\n\n\n<li><samp>static<\/samp><\/li>\n<\/ul>\n\n\n\n<p>\u542f\u7528\u53ea\u8bfb\u6a21\u5f0f \u5fc5\u987b\u5728\u9876\u90e8\u4f7f\u7528\u6ce8\u91ca level \u65b9\u6cd5\u8c03\u7528\u3002\u5982\u679c\u9876\u7ea7\u65b9\u6cd5\u8c03\u7528\u6ca1\u6709\u6ce8\u89e3\uff0c\u5219\u5bf9\u6700\u5927\u67e5\u8be2\u91cf\u7684\u6b63\u5e38\u9650\u5236 \u5bf9\u6574\u4e2a\u8bf7\u6c42\u5f3a\u5236\u6267\u884c\u884c\uff0c\u5373\u4f7f\u8f85\u52a9\u65b9\u6cd5\u4f7f\u7528 \u6ce8\u91ca\u4e86 \u3002<samp>@ReadOnly<\/samp><samp>@ReadOnly<\/samp><samp>@ReadOnly<\/samp><\/p>\n\n\n\n<p>\u5728\u63a7\u5236\u5668\u65b9\u6cd5\u4e0a\u4f7f\u7528\u6279\u6ce8 \u5141\u8bb8\u60a8\u68c0\u7d22\u66f4\u5927\u7684\u8bb0\u5f55\u96c6\u5408\u4f5c\u4e3a Visualforce \u8868\u8fbe\u5f0f\u7684\u7ed3\u679c\u3002\u4f46\u662f\uff0c\u5b83 \u4e0d\u4f1a\u589e\u52a0\u8fed\u4ee3\u7ec4\u4ef6\u7684\u96c6\u5408\u4e2d\u7684\u6700\u5927\u9879\u6570\u3002\u5982\u679c \u60f3\u8981\u904d\u5386\u66f4\u5927\u7684\u7ed3\u679c\u96c6\u5408\uff0c\u9700\u8981\u4e3a \u6574\u4e2a\u9875\u9762\u3002<samp>@ReadOnly<\/samp><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u521b\u5efa\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u7684\u6ce8\u610f\u4e8b\u9879 \u6269\u5c55<\/h1>\n\n\n\n<p>\u521b\u5efa\u63a7\u5236\u5668\u6269\u5c55\u548c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u65f6\uff0c\u8bf7\u6ce8\u610f\u4ee5\u4e0b\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9664\u975e\u4e00\u4e2a\u7c7b\u5177\u6709\u5b9a\u4e49\u4e3a \u7684\u65b9\u6cd5\uff0c\u5426\u5219\u81ea\u5b9a\u4e49\u6269\u5c55\u548c\u63a7\u5236\u5668\u7c7b\u548c\u65b9\u6cd5\u901a\u5e38 \u5b9a\u4e49\u4e3a \u3002\u5982\u679c\u7c7b\u5305\u542b Web \u670d\u52a1\u65b9\u6cd5\uff0c\u5219\u5fc5\u987b\u5c06\u5176\u5b9a\u4e49\u4e3a \u3002<samp>webService<\/samp><samp>public<\/samp><samp>global<\/samp><\/li>\n\n\n\n<li>\u4ece\u6570\u636e\u5e93\u8fd4\u56de\u6570\u636e\u65f6\uff0c\u8bf7\u4f7f\u7528\u96c6\u3001\u6620\u5c04\u6216\u5217\u8868\u3002\u8fd9\u5c06\u4f7f\u60a8\u7684\u4ee3\u7801 \u6548\u7387\u66f4\u9ad8\uff0c\u56e0\u4e3a\u4ee3\u7801\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u66f4\u5c11\u3002<\/li>\n\n\n\n<li>Visualforce \u63a7\u5236\u5668\u6269\u5c55\u7684 Apex \u8c03\u63a7\u5668\u9650\u5236\u548c \u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u4e0e\u533f\u540d\u5757\u6216 WSDL \u65b9\u6cd5\u7684\u9650\u5236\u76f8\u540c\u3002\u4e3a \u6709\u5173\u8c03\u63a7\u5668\u9650\u5236\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u9644\u5f55\u4e2d\u7684\u6267\u884c\u8c03\u63a7\u5668\u548c\u9650\u5236\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u8981\u6784\u5efa\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u6269\u5c55\uff0c\u8bf7\u6ce8\u610f\u8fd9\u6837\u505a \u4e0d\u4f1a\u65e0\u610f\u4e2d\u66b4\u9732\u901a\u5e38\u5bf9\u7528\u6237\u9690\u85cf\u7684\u654f\u611f\u6570\u636e\u3002\u8003\u8651 \u5728\u7c7b\u4e0a\u4f7f\u7528\u5173\u952e\u5b57 \u7528\u4e8e\u5f3a\u5236\u6267\u884c\u6743\u9650\u7684\u5b9a\u4e49\u3002\u53e6\u5916\uff0c\u4f7f\u7528\u53d7\u4fdd\u62a4\u7684 Web \u670d\u52a1\u65f6\u4e5f\u8981\u5c0f\u5fc3 \u4f5c\u4e3a\u914d\u7f6e\u6587\u4ef6\u7684\u9876\u7ea7\u5165\u53e3\u70b9\uff0c\u4f46\u4e00\u65e6\u5b83\u4eec\u88ab\u6267\u884c\uff0c\u5c31\u4f1a\u5728\u7cfb\u7edf\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c \u53d1\u8d77\u3002<samp>with sharing<\/samp><\/li>\n\n\n\n<li>Apex \u65b9\u6cd5\u548c\u53d8\u91cf\u4e0d\u6309\u4fdd\u8bc1\u987a\u5e8f\u5b9e\u4f8b\u5316\u3002\u67e5\u770b\u66f4\u591a \u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u4f7f\u7528\u81ea\u5b9a\u4e49\u6269\u5c55\u83b7\u53d6\u548c\u8bbe\u7f6e\u6570\u636e\u6216 \u63a7\u5236\u5668\u3002<\/li>\n\n\n\n<li>\u4e0d\u80fd\u5728\u201cgetxxx\u201d\u4e2d\u4f7f\u7528\u6570\u636e\u64cd\u4f5c\u8bed\u8a00 \uff08DML\uff09 \u64cd\u4f5c \u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5982\u679c\u63a7\u5236\u5668\u5177\u6709\u65b9\u6cd5\uff0c\u5219\u4e0d\u80fd\u5728\u8be5\u65b9\u6cd5\u4e2d\u4f7f\u7528 \u6216 \u521b\u5efa\u5bf9\u8c61\u3002<samp>getName<\/samp><samp>insert<\/samp><samp>update<\/samp><\/li>\n\n\n\n<li>\u4e0d\u80fd\u5728\u6784\u9020\u51fd\u6570\u65b9\u6cd5\u4e2d\u4f7f\u7528\u6570\u636e\u64cd\u4f5c\u8bed\u8a00 \uff08DML\uff09 \u64cd\u4f5c \u63a7\u5236\u5668\u3002<\/li>\n\n\n\n<li>\u60a8\u4e0d\u80fd\u5728 \u201cgetxxx\u201d\u6216\u201csetxxx\u201d\u65b9\u6cd5\uff0c\u6216\u8005\u5728 \u63a7\u5236\u5668\u7684\u6784\u9020\u51fd\u6570\u3002<samp>@future<\/samp><\/li>\n\n\n\n<li>Primitive Apex \u6570\u636e\u7c7b\u578b\uff08\u5982 String \u6216 Integer\uff09\u6309\u503c\u4f20\u9012\u7ed9 \u7ec4\u4ef6\u7684\u63a7\u5236\u5668\u3002<\/li>\n\n\n\n<li>\u975e\u539f\u59cb Apex \u6570\u636e\u7c7b\u578b\uff08\u5982 lists \u548c sObjects\uff09\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u7ed9 \u7ec4\u4ef6\u7684\u63a7\u5236\u5668\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c\u7ec4\u4ef6\u7684\u63a7\u5236\u5668\u66f4\u6539\u4e86 \u5e10\u6237\uff0c\u66f4\u6539\u53ef\u5728\u9875\u9762\u7684\u63a7\u5236\u5668\u4e2d\u627e\u5230\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u60a8\u7684\u7ec4\u7ec7\u4f7f\u7528\u4e2a\u4eba\u5e10\u6237\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u81ea\u5b9a\u4e49\u5f15\u7528\u5ba2\u6237\u8bb0\u5f55\u7684\u540d\u79f0\u5b57\u6bb5\u65f6 \u63a7\u5236\u5668\u4f7f\u7528\u60a8\u5fc5\u987b\u5728 \u60a8\u7684\u67e5\u8be2\u3002<samp>&lt;apex:inputField&gt;<\/samp><samp>isPersonAccount<\/samp><\/li>\n\n\n\n<li>\u5982\u679c\u521b\u5efa\u65b0\u5e10\u6237\u5e76\u8bbe\u7f6e\u540d\u79f0\uff0c\u5219\u8bb0\u5f55\u5c06\u4e3a \u4f01\u4e1a\u5e10\u6237\u3002\u5982\u679c\u60a8\u521b\u5efa\u4e00\u4e2a\u65b0\u5e10\u6237\u5e76\u8bbe\u7f6e\u59d3\u6c0f\uff0c \u8fd9\u5c06\u662f\u4e00\u4e2a\u4e2a\u4eba\u5e10\u6237\u3002<\/li>\n\n\n\n<li>\u6700\u4f73\u505a\u6cd5\u662f\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u540d\u79f0\u516c\u5f0f\u5b57\u6bb5\uff0c\u8be5\u5b57\u6bb5\u5c06\u6b63\u786e\u5448\u73b0 \u4e2a\u4eba\u5e10\u6237\u548c\u4f01\u4e1a\u5e10\u6237\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u5b57\u6bb5\u800c\u4e0d\u662f Visualforce \u9875\u9762\u4e2d\u7684\u6807\u51c6\u5b57\u6bb5\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u60a8\u8ba1\u5212\u5c06 Visualforce \u9875\u9762\u5305\u542b\u5728 Salesforce AppExchange \u8f6f\u4ef6\u5305\u4e2d\uff0c \u5728\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u6269\u5c55\u4e2d\uff0c\u4e0d\u80fd\u663e\u5f0f\u5f15\u7528\u5b57\u6bb5 \u4ec5\u5b58\u5728\u4e8e\u4e2a\u4eba\u5e10\u6237\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">Visualforce \u9875\u9762\u4e2d\u7684\u6267\u884c\u987a\u5e8f<\/h1>\n\n\n\n<p>\u5f53\u7528\u6237\u67e5\u770b Visualforce \u9875\u9762\u65f6\uff0c\u63a7\u5236\u5668\u3001\u6269\u5c55\u548c\u7ec4\u4ef6\u7684\u5b9e\u4f8b\u4f1a\u5173\u8054 \u9875\u9762\u7531\u670d\u52a1\u5668\u521b\u5efa\u3002\u8fd9\u4e9b\u987a\u5e8f \u5143\u7d20\u7684\u6267\u884c\u4f1a\u5f71\u54cd\u9875\u9762\u5411 \u7528\u6237\u3002\u8981\u5b8c\u5168\u4e86\u89e3 Visualforce \u9875\u9762\u4e0a\u5143\u7d20\u7684\u6267\u884c\u987a\u5e8f\uff0c\u60a8\u5fc5\u987b\u9996\u5148\u4e86\u89e3\u9875\u9762\u7684<dfn>\u751f\u547d\u5468\u671f<\/dfn>\uff0c\u5373\u9875\u9762\u5728 \u7528\u6237\u4f1a\u8bdd\u7684\u8fc7\u7a0b\u3002\u9875\u9762\u7684\u751f\u547d\u5468\u671f\u4e0d\u662f\u786e\u5b9a\u7684 \u4ec5\u901a\u8fc7\u9875\u9762\u7684\u5185\u5bb9\uff0c\u8fd8\u53d6\u51b3\u4e8e\u9875\u9762\u7684\u8bf7\u6c42\u65b9\u5f0f\u3002 \u6709\u4e24\u79cd\u7c7b\u578b\u7684 Visualforce \u9875\u9762\u8bf7\u6c42\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a><\/a>get \u8bf7\u6c42\u662f\u521d\u59cb<dfn>\u8bf7\u6c42<\/dfn>&nbsp;\u5f53\u7528\u6237\u8f93\u5165 URL \u6216 \u5355\u51fb\u94fe\u63a5\u6216\u6309\u94ae\uff0c\u5c06\u7528\u6237\u5e26\u5230\u65b0\u9875\u9762\u3002<\/li>\n\n\n\n<li><a><\/a><dfn>\u56de\u53d1\u8bf7\u6c42<\/dfn>\u662f \u5f53\u7528\u6237\u4ea4\u4e92\u9700\u8981\u9875\u9762\u66f4\u65b0\u65f6\u8fdb\u884c\uff0c\u4f8b\u5982\u5f53 \u7528\u6237\u5355\u51fb<strong>\u201c\u4fdd\u5b58<\/strong>\u201d\u6309\u94ae\u5e76\u89e6\u53d1 \u4fdd\u5b58\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6709\u5173\u8fd9\u4e24\u79cd\u8bf7\u6c42\u7684\u5177\u4f53\u7ec6\u8282\uff0c\u8bf7\u4e3e\u4f8b\u8bf4\u660e \u9875\u9762\u7684\u751f\u547d\u5468\u671f\uff0c\u4ee5\u53ca\u6709\u5173\u5982\u4f55\u5904\u7406\u6267\u884c\u987a\u5e8f\u7684\u63d0\u793a \u5728\u7f16\u5199\u81ea\u5df1\u7684\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\u65f6\uff0c \u770b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Visualforce \u9875\u9762\u83b7\u53d6\u8bf7\u6c42\u7684\u6267\u884c\u987a\u5e8f<\/li>\n\n\n\n<li>Visualforce \u9875\u9762\u56de\u53d1\u8bf7\u6c42\u7684\u6267\u884c\u987a\u5e8f<\/li>\n\n\n\n<li>Visualforce \u9875\u9762\u6267\u884c\u987a\u5e8f\u793a\u4f8b<\/li>\n<\/ul>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>Visualforce \u9875\u9762\u8bf7\u6c42\u7684\u6700\u5927\u54cd\u5e94\u5927\u5c0f\u5fc5\u987b\u4f4e\u4e8e15\u5146\u5b57\u8282.<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Visualforce \u9875\u9762\u83b7\u53d6\u8bf7\u6c42\u7684\u6267\u884c\u987a\u5e8f<\/h1>\n\n\n\n<p>get \u8bf7\u6c42\u662f\u521d\u59cb<dfn>\u8bf7\u6c42<\/dfn>&nbsp;\u5f53\u7528\u6237\u8f93\u5165 URL \u6216 \u5355\u51fb\u94fe\u63a5\u6216\u6309\u94ae\uff0c\u5c06\u7528\u6237\u5e26\u5230\u65b0\u9875\u9762\u3002\u4e0b\u56fe\u663e\u793a\u4e86 Visualforce \u9875\u9762\u5982\u4f55\u4e0e\u63a7\u5236\u5668\u6269\u5c55\u6216\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u8fdb\u884c\u4ea4\u4e92 GET \u8bf7\u6c42\u671f\u95f4\u7684\u7c7b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"719\" height=\"1024\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow1-719x1024.png\" alt=\"\" class=\"wp-image-4061\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow1-719x1024.png 719w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow1-211x300.png 211w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow1.png 726w\" sizes=\"(max-width: 719px) 100vw, 719px\" \/><\/figure>\n\n\n\n<p>\u5728\u4e0a\u56fe\u4e2d\uff0c\u7528\u6237\u6700\u521d\u8bf7\u6c42\u9875\u9762\uff0c\u6216\u8005 \u901a\u8fc7\u8f93\u5165 URL \u6216\u5355\u51fb\u94fe\u63a5\u6216\u6309\u94ae\u3002\u6b64\u521d\u59cb\u9875\u9762 request \u79f0\u4e3a&nbsp;<dfn>get \u8bf7\u6c42<\/dfn>\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5173\u8054\u7684\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u4e0a\u7684\u6784\u9020\u51fd\u6570\u65b9\u6cd5\u6216 \u8c03\u7528\u63a7\u5236\u5668\u6269\u5c55\u7c7b\uff0c\u5b9e\u4f8b\u5316\u63a7\u5236\u5668 \u5bf9\u8c61\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u9875\u9762\u5305\u542b\u4efb\u4f55\u81ea\u5b9a\u4e49\u7ec4\u4ef6\uff0c\u5219\u4f1a\u521b\u5efa\u8fd9\u4e9b\u7ec4\u4ef6\u5e76 \u4efb\u4f55\u5173\u8054\u7684\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u4e0a\u7684\u6784\u9020\u51fd\u6570\u65b9\u6cd5 \u6269\u5c55\u88ab\u6267\u884c\u3002\u5982\u679c\u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u8bbe\u7f6e\u4e86\u5c5e\u6027 \u4f7f\u7528\u8868\u8fbe\u5f0f\uff0c\u8868\u8fbe\u5f0f\u5728\u6784\u9020\u51fd\u6570\u4e4b\u540e\u8ba1\u7b97 \u88ab\u8bc4\u4f30\u3002<\/li>\n\n\n\n<li>\u7136\u540e\uff0c\u9875\u9762\u5bf9\u9875\u9762\u4e0a\u7684\u4efb\u4f55\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u6267\u884c\u4efb\u4f55\u5c5e\u6027\u3002\u6267\u884c\u65b9\u6cd5\u540e\uff0c\u8868\u8fbe\u5f0f \uff0c\u5219\u8ba1\u7b97\u7ec4\u4ef6\u4e0a\u7684\u5c5e\u6027\uff0c\u4ee5\u53ca\u6240\u6709\u5176\u4ed6\u65b9\u6cd5\u8c03\u7528\uff0c\u4f8b\u5982\u83b7\u53d6 \u6216\u8bbe\u7f6e\u5c5e\u6027\u503c\u3002<samp>assignTo<\/samp><samp>assignTo<\/samp><samp>action<\/samp><samp>&lt;apex:page&gt;<\/samp><\/li>\n\n\n\n<li>\u5982\u679c\u9875\u9762\u5305\u542b\u7ec4\u4ef6\uff0c\u5219\u7ef4\u62a4\u72b6\u6001\u6240\u9700\u7684\u6240\u6709\u4fe1\u606f \u7684\u6570\u636e\u5e93\u5728\u9875\u9762\u8bf7\u6c42\u4e4b\u95f4\u88ab\u4fdd\u5b58\u4e3a\u52a0\u5bc6<dfn>\u7684\u89c6\u56fe\u72b6\u6001<\/dfn>\u3002\u6bcf\u5f53\u9875\u9762\u51fa\u73b0\u4ee5\u4e0b\u60c5\u51b5\u65f6\uff0c\u89c6\u56fe\u72b6\u6001\u90fd\u4f1a\u66f4\u65b0\uff1a \u66f4\u65b0\u3002<samp>&lt;apex:form&gt;<\/samp><\/li>\n\n\n\n<li>\u751f\u6210\u7684 HTML \u5c06\u53d1\u9001\u5230\u6d4f\u89c8\u5668\u3002\u5982\u679c\u6709\u4efb\u4f55\u5ba2\u6237\u7aef \u9875\u9762\u4e0a\u7684\u6280\u672f\uff0c\u4f8b\u5982 JavaScript\uff0c\u6d4f\u89c8\u5668\u6267\u884c \u4ed6\u4eec\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5f53\u7528\u6237\u4e0e\u9875\u9762\u4ea4\u4e92\u65f6\uff0c\u9875\u9762\u4f1a\u8054\u7cfb\u63a7\u5236\u5668 \u5bf9\u8c61\uff0c\u4ee5\u6267\u884c action\u3001getter \u548c setter \u65b9\u6cd5\u3002\u4e00\u65e6\u7528\u6237\u53d1\u51fa\u65b0\u7684 get \u8bf7\u6c42\uff0c\u89c6\u56fe\u72b6\u6001\u548c \u63a7\u5236\u5668\u5bf9\u8c61\u5c06\u88ab\u5220\u9664\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u88ab\u91cd\u5b9a\u5411\u5230 \u4f7f\u7528\u76f8\u540c\u63a7\u5236\u5668\u548c\u76f8\u540c\u6216\u9002\u5f53\u5b50\u96c6\u7684\u9875\u9762 \u7684\u63a7\u5236\u5668\u6269\u5c55\uff0c\u5219\u4f1a\u53d1\u51fa\u56de\u53d1\u8bf7\u6c42\u3002\u56de\u53d1\u65f6 \u53d1\u51fa\u8bf7\u6c42\uff0c\u89c6\u56fe\u72b6\u6001\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u4ea4\u4e92\u9700\u8981\u9875\u9762\u66f4\u65b0\uff0c\u4f8b\u5982\u5f53 \u7528\u6237\u5355\u51fb\u89e6\u53d1\u4fdd\u5b58\u7684<strong>\u201c\u4fdd\u5b58<\/strong>\u201d\u6309\u94ae \u64cd\u4f5c\u65f6\uff0c\u5c06\u53d1\u51fa<dfn>\u56de\u53d1\u8bf7\u6c42<\/dfn>\u3002\u66f4\u591a\u4fe1\u606f \u6709\u5173\u56de\u53d1\u8bf7\u6c42\uff0c\u8bf7\u53c2\u89c1\u00a0Visualforce \u9875\u9762\u56de\u53d1\u8bf7\u6c42\u7684\u6267\u884c\u987a\u5e8f\u3002<\/p>\n\n\n\n<p>\u6709\u5173 get \u8bf7\u6c42\u7684\u7279\u5b9a\u793a\u4f8b\uff0c\u8bf7\u53c2\u89c1\u00a0Visualforce \u9875\u9762\u6267\u884c\u987a\u5e8f\u793a\u4f8b\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Visualforce \u9875\u9762\u56de\u53d1\u8bf7\u6c42\u7684\u6267\u884c\u987a\u5e8f<\/h1>\n\n\n\n<p><dfn>\u56de\u53d1\u8bf7\u6c42<\/dfn>\u662f \u5f53\u7528\u6237\u4ea4\u4e92\u9700\u8981\u9875\u9762\u66f4\u65b0\u65f6\u8fdb\u884c\uff0c\u4f8b\u5982\u5f53 \u7528\u6237\u5355\u51fb<strong>\u201c\u4fdd\u5b58<\/strong>\u201d\u6309\u94ae\u5e76\u89e6\u53d1 \u4fdd\u5b58\u64cd\u4f5c\u3002\u4e0b\u56fe\u663e\u793a\u4e86 Visualforce \u9875\u9762\u5982\u4f55\u4e0e\u63a7\u5236\u5668\u6269\u5c55\u6216\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u8fdb\u884c\u4ea4\u4e92 \u56de\u53d1\u8bf7\u6c42\u671f\u95f4\u7684\u7c7b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"714\" height=\"1024\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow2-714x1024.png\" alt=\"\" class=\"wp-image-4062\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow2-714x1024.png 714w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow2-209x300.png 209w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrlflow2.png 717w\" sizes=\"(max-width: 714px) 100vw, 714px\" \/><\/figure>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728\u56de\u53d1\u8bf7\u6c42\u671f\u95f4\uff0c\u5c06\u5bf9\u89c6\u56fe\u72b6\u6001\u8fdb\u884c\u89e3\u7801\u5e76\u4f7f\u7528 \u4f5c\u4e3a\u66f4\u65b0\u9875\u9762\u4e0a\u503c\u7684\u57fa\u7840\u3002\u6ce8\u610f\u7ec4\u4ef6 \u66ff\u6362\u4e3a\u5c5e\u6027 \u8bbe\u7f6e\u4e3a\u7ed5\u8fc7\u6b64 \u9636\u6bb5\u3002\u6362\u8a00\u4e4b\uff0c\u64cd\u4f5c\u5df2\u6267\u884c\uff0c\u4f46\u672a\u6267\u884c \u5bf9\u8f93\u5165\u6267\u884c\u9a8c\u8bc1\uff0c\u9875\u9762\u4e0a\u4e0d\u4f1a\u66f4\u6539\u4efb\u4f55\u6570\u636e\u3002<samp>immediate<\/samp><samp>true<\/samp><\/li>\n\n\n\n<li>\u5bf9\u89c6\u56fe\u72b6\u6001\u8fdb\u884c\u89e3\u7801\u540e\uff0c\u5c06\u8ba1\u7b97\u8868\u8fbe\u5f0f\u5e76 \u5728\u63a7\u5236\u5668\u548c\u4efb\u4f55\u63a7\u5236\u5668\u6269\u5c55\u4e0a\u8bbe\u7f6e\u65b9\u6cd5\uff0c\u5305\u62ec \u5728\u4e3a\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5b9a\u4e49\u7684\u63a7\u5236\u5668\u4e2d\u6267\u884c set \u65b9\u6cd5\u3002\u9664\u975e\u6240\u6709\u65b9\u6cd5\u90fd \u5df2\u6210\u529f\u6267\u884c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5176\u4e2d\u4e00\u4e2a\u65b9\u6cd5\u66f4\u65b0 \u5c5e\u6027\uff0c\u5e76\u4e14\u7531\u4e8e\u9a8c\u8bc1\u89c4\u5219\u6216 \u6570\u636e\u7c7b\u578b\u4e0d\u6b63\u786e\uff0c\u6570\u636e\u4e0d\u4f1a\u66f4\u65b0\uff0c\u9875\u9762\u4f1a\u91cd\u65b0\u663e\u793a \u4ee5\u53ca\u76f8\u5e94\u7684\u9519\u8bef\u6d88\u606f\u3002<\/li>\n\n\n\n<li>\u5c06\u6267\u884c\u89e6\u53d1\u56de\u53d1\u8bf7\u6c42\u7684\u64cd\u4f5c\u3002\u5982\u679c \u8be5\u64cd\u4f5c\u6210\u529f\u5b8c\u6210\uff0c\u6570\u636e\u5c06\u66f4\u65b0\u3002\u5982\u679c\u56de\u53d1 request \u5c06\u7528\u6237\u8fd4\u56de\u5230\u540c\u4e00\u9875\u9762\uff0c\u89c6\u56fe\u72b6\u6001\u5c06\u66f4\u65b0\u3002\u6ce8\u610f\u4e0a\u7684\u5c5e\u6027 \u7ec4\u4ef6 \u5728\u56de\u53d1\u8bf7\u6c42\u671f\u95f4\u4e0d\u8ba1\u7b97\u3002\u5b83\u4ec5\u5728 GET \u8bf7\u6c42\u3002<samp>action<\/samp><samp>&lt;apex:page&gt;<\/samp><\/li>\n\n\n\n<li>\u751f\u6210\u7684 HTML \u5c06\u53d1\u9001\u5230\u6d4f\u89c8\u5668\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5982\u679c\u56de\u53d1\u8bf7\u6c42\u6307\u793a\u9875\u9762\u91cd\u5b9a\u5411\u548c\u91cd\u5b9a\u5411 \u662f\u4f7f\u7528\u76f8\u540c\u63a7\u5236\u5668\u548c \u539f\u59cb\u9875\u9762\u7684\u63a7\u5236\u5668\u6269\u5c55\uff0c\u56de\u53d1\u8bf7\u6c42 \u4e3a\u8be5\u9875\u9762\u6267\u884c\u3002\u5426\u5219\uff0c\u5c06\u6267\u884c get \u8bf7\u6c42 \u9875\u9762\u3002\u5982\u679c\u56de\u53d1\u8bf7\u6c42\u5305\u542b\u7ec4\u4ef6\uff0c\u5219\u53ea\u6709 \u8fd4\u56de\u56de\u53d1\u8bf7\u6c42\u7684 ID \u67e5\u8be2\u53c2\u6570\u3002<samp>&lt;apex:form&gt;<\/samp><\/p>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u53ef\u4ee5\u4f7f\u7528 \u4e0a\u7684\u5c5e\u6027\u6765\u63a7\u5236\u662f\u5426\u6267\u884c\u56de\u53d1\u6216\u83b7\u53d6\u8bf7\u6c42\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a true\uff0c\u5219 get \u8bf7\u6c42\u88ab\u6267\u884c\u3002\u5c06\u5176\u8bbe\u7f6e\u4e3a false \u4e0d\u4f1a\u5ffd\u7565\u9650\u5236 \u5f53\u4e14\u4ec5\u5f53\u76ee\u6807 \u4f7f\u7528\u76f8\u540c\u7684\u63a7\u5236\u5668\u548c\u9002\u5f53\u7684\u6269\u5c55\u5b50\u96c6\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a false\uff0c\u5219 Target \u4e0d\u6ee1\u8db3\u8fd9\u4e9b\u8981\u6c42\uff0c\u5c06\u53d1\u51fa GET \u8bf7\u6c42\u3002<samp>setRedirect<\/samp><samp>pageReference<\/samp><samp>setRedirect<\/samp><samp>setRedirect<\/samp><\/p>\n\n\n\n<p>\u4e00\u65e6\u7528\u6237\u88ab\u91cd\u5b9a\u5411\u5230\u53e6\u4e00\u4e2a\u9875\u9762\uff0c\u89c6\u56fe\u72b6\u6001\u548c \u63a7\u5236\u5668\u5bf9\u8c61\u5c06\u88ab\u5220\u9664\u3002<\/p>\n\n\n\n<p>\u6709\u5173\u56de\u53d1\u8bf7\u6c42\u7684\u7279\u5b9a\u793a\u4f8b\uff0c\u8bf7\u53c2\u89c1\u00a0Visualforce \u9875\u9762\u6267\u884c\u987a\u5e8f\u793a\u4f8b\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Visualforce \u9875\u9762\u6267\u884c\u793a\u4f8b \u6b21\u5e8f<\/h1>\n\n\n\n<p>\u4ee5\u4e0b\u793a\u4f8b\u8bf4\u660e\u4e86 Visualforce \u9875\u9762\u4f5c\u4e3a\u7528\u6237\u7684\u751f\u547d\u5468\u671f \u4e0e\u5b83\u4ea4\u4e92\u3002\u793a\u4f8b\u4e2d\u4f7f\u7528\u7684\u9875\u9762\u65e8\u5728\u663e\u793a\u6709\u5173\u4ee5\u4e0b\u5185\u5bb9\u7684\u4fe1\u606f \u5e10\u6237\uff0c\u9875\u9762\u4e0a\u53d8\u91cf\u7684\u503c\uff0c\u5e76\u5141\u8bb8\u7528\u6237\u7f16\u8f91\u8be6\u7ec6\u4fe1\u606f \u5982\u679c\u952e\u503c\u8bbe\u7f6e\u4e3a\u9664 false \u4e4b\u5916\u7684\u4efb\u4f55\u503c\uff0c\u5219\u5e10\u6237\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e Visualforce \u9875\u9762 \u793a\u4f8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e3a\u540d\u4e3a<samp>componentController<\/samp><code>public class componentController { public String selectedValue { get; set { editMode = (value != null); \/\/ Side effect here - don't do this! selectedValue = value; } } public Boolean editMode {get; private set;} }<\/code><\/li>\n\n\n\n<li>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \uff1a<samp>editMode<\/samp><code>&lt;apex:component controller=\"componentController\"&gt; &lt;apex:attribute name=\"value\" type=\"String\" description=\"Sample component.\" assignTo=\"{!selectedValue}\"\/&gt; &lt;p&gt; Value = {!value}&lt;br\/&gt; selectedValue = {!selectedValue}&lt;br\/&gt; EditMode = {!EditMode} &lt;\/p&gt; &lt;\/apex:component&gt;<\/code><\/li>\n\n\n\n<li>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \uff1a<samp>myController<\/samp><code>public with sharing class myController { private final Account account; public myController() { account = [select id, name, site, NumberOfEmployees, Industry from Account where id = :ApexPages.currentPage().getParameters().get('id')]; } public Account getAccount() { return account; } public PageReference save() { update account; return null; } public PageReference cancel() { return null; } }<\/code><\/li>\n\n\n\n<li>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a<samp>lifecycle<\/samp><code>public with sharing class lifecycle { private final Account acct; Integer EmpAdd; public lifecycle(myController controller) { this.acct = (Account)controller.getAccount(); } public String getGreeting() { return acct.name + ' Current Information'; } public void resetEmp() { acct.numberofemployees = 10; update acct; } }<\/code><\/li>\n\n\n\n<li>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \uff1a<samp>setEmps<\/samp><code>&lt;apex:page controller=\"myController\" tabStyle=\"Account\" extensions=\"lifecycle\" action=\"{!resetEmp}\"&gt; &lt;apex:messages \/&gt; &lt;apex:pageBlock title=\"{!greeting}\"&gt; &lt;apex:outputLabel value=\"{!$ObjectType.account.fields.Name.label}: \" for=\"acctName\"\/&gt; &lt;apex:outputField value=\"{!account.name}\" id=\"acctName\"\/&gt; &lt;br\/&gt; &lt;apex:outputLabel value=\"{!$ObjectType.account.fields.NumberOfEmployees.label}: \" for=\"emps\"\/&gt; &lt;apex:outputField value=\"{!account.NumberOfEmployees}\" id=\"emps\"\/&gt; &lt;br\/&gt; &lt;\/apex:pageBlock&gt; &lt;apex:pageBlock title=\"Variable values\"&gt; &lt;c:editMode value=\"{!$CurrentPage.parameters.key}\"\/&gt; &lt;\/apex:pageBlock&gt; &lt;apex:form rendered=\"{!$CurrentPage.parameters.key = 'true'}\"&gt; &lt;apex:pageBlock title=\"Update the Account\" id=\"thePageBlock\"&gt; &lt;apex:pageBlockSection columns=\"1\"&gt; &lt;apex:inputField id=\"aName\" value=\"{!account.name}\"\/&gt; &lt;apex:inputField value=\"{!account.NumberOfEmployees}\"\/&gt; &lt;apex:pageBlockSectionItem&gt; &lt;apex:outputLabel value=\"{!$ObjectType.account.fields.Industry.label}\" for=\"acctIndustry\"\/&gt; &lt;apex:actionRegion&gt; &lt;apex:inputField value=\"{!account.Industry}\" id=\"acctIndustry\"&gt; &lt;apex:actionSupport event=\"onchange\" rerender=\"thePageBlock\" status=\"status\"\/&gt; &lt;\/apex:inputField&gt; &lt;\/apex:actionRegion&gt; &lt;\/apex:pageBlockSectionItem&gt; &lt;\/apex:pageBlockSection&gt; &lt;apex:pageBlockButtons location=\"bottom\"&gt; &lt;apex:commandButton action=\"{!save}\" value=\"Save\"\/&gt; &lt;apex:commandButton action=\"{!cancel}\" value=\"Cancel\" immediate=\"true\"\/&gt; &lt;\/apex:pageBlockButtons&gt; &lt;\/apex:pageBlock&gt; &lt;\/apex:form&gt; &lt;\/apex:page&gt;<\/code><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u83b7\u53d6\u8bf7\u6c42\u793a\u4f8b\u4e00<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u7b2c\u4e00\u4e2a\u793a\u4f8b\uff0c\u8bf7\u8bbf\u95ee\u9875\u9762 \u4f7f\u7528\u683c\u5f0f\u4e3a\u00a0https:\/\/ Salesforce_instance\/apex<var>\/<\/var>setEmps\uff1fid=<var>recordId<\/var>\u00a0\u7684 URL\uff0c \u5176\u4e2d \u662f\u5b9e\u4f8b\u7684\u540d\u79f0\uff08\u4f8b\u5982\uff0c\uff09\uff0c\u5e76\u4e14\u662f \u7ec4\u7ec7\u4e2d\u7684\u5ba2\u6237\u8bb0\u5f55\uff08\u4f8b\u5982\uff0c\uff09\u3002\u60a8\u5c06\u770b\u5230\u4e00\u4e2a\u9875\u9762\uff0c\u5176\u5185\u5bb9\u7c7b\u4f3c\u4e8e \u4ee5\u540e\uff1a<samp>setEmpsSalesforce_instancena1recordID001D000000IRt53<\/samp><img decoding=\"async\" width=\"795\" height=\"186\" class=\"wp-image-4063\" style=\"\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl4.png\" alt=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl4.png 795w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl4-300x70.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl4-768x180.png 768w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u8ddf\u8e2a\u751f\u547d\u5468\u671f\uff0c\u770b\u770b\u4e3a\u4ec0\u4e48\u9875\u9762\u4f1a\u663e\u793a\u5b83\u7684\u4f5c\u7528\u3002\u65e2\u7136\u4f60\u5df2\u7ecf \u901a\u8fc7\u8f93\u5165 URL \u76f4\u63a5\u8bf7\u6c42\u9875\u9762\uff0c\u6b64\u9875\u9762\u662f get \u7684\u7ed3\u679c \u8bf7\u6c42\uff0c\u800c\u4e0d\u662f\u56de\u53d1\u8bf7\u6c42\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728 get \u8bf7\u6c42\u4e2d\u53d1\u751f\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f \u8c03\u7528\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\u3002\u8be5\u65b9\u6cd5\u662f \u63a7\u5236\u5668\uff0c\u65b9\u6cd5\u662f \u6269\u5c55\u4e0a\u7684\u6784\u9020\u51fd\u6570\u3002\u8fd9\u4e9b\u5bf9\u8c61\u88ab\u6267\u884c\uff0c\u5e76\u4e14\u8fd9\u4e24\u4e2a\u5bf9\u8c61\u73b0\u5728\u5b58\u5728\u3002 \u63a7\u5236\u5668\u73b0\u5728\u6709\u4e00\u4e2a\u540d\u4e3a \u7684\u53d8\u91cf\uff0c\u5b83\u662f\u4f7f\u7528 URL \u4e2d\u7684\u53c2\u6570\u7684\u67e5\u8be2\u7684\u7ed3\u679c\uff0c\u7528\u4e8e\u6807\u8bc6 \u8981\u67e5\u8be2\u7684\u5e10\u6237\u5bf9\u8c61\u3002\u8be5\u6269\u5c55\u73b0\u5728\u6709\u4e00\u4e2a\u53d8\u91cf\uff0c\u79f0\u4e3a \uff0c\u8be5\u53d8\u91cf\u662f\u901a\u8fc7\u8c03\u7528 \u63a7\u5236\u5668\u3002\u8be5\u65b9\u6cd5\u5177\u6709 \u65e0\u526f\u4f5c\u7528\u3002<samp>myController<\/samp><samp>lifecycle<\/samp><samp>account<\/samp><samp>id<\/samp><samp>acct<\/samp><samp>getAccount<\/samp><samp>getAccount<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u4e0b\u4e00\u6b65\u662f\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5e76\u6267\u884c \u5173\u8054\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u6269\u5c55\u4e0a\u7684\u6784\u9020\u51fd\u6570\u65b9\u6cd5\u3002\u9875\u9762 \u5305\u62ec\u4e00\u4e2a\u81ea\u5b9a\u4e49 \u5143\u4ef6\uff1a<code>&lt;c:editMode value=\"{!$CurrentPage.parameters.key}\"\/&gt;<\/code>\u8fd9 \u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5177\u6709\u5173\u8054\u7684\u63a7\u5236\u5668\uff0c\u4f46\u63a7\u5236\u5668\u6ca1\u6709 Explicit \u6784\u9020\u51fd\u6570\u3002\u4e0e\u6240\u6709\u6ca1\u6709\u663e\u5f0f\u7684 Apex \u5bf9\u8c61\u4e00\u6837 \u6784\u9020\u51fd\u6570\uff0c\u5bf9\u8c61\u662f\u4f7f\u7528\u9690\u5f0f\u7684\u3001\u65e0\u53c2\u6570\u7684\u3001\u516c\u5171\u7684 \u6784\u9020 \u51fd\u6570\u3002\u4f5c\u4e3a\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u4e00\u90e8\u5206\uff0cvalue \u5c5e\u6027 \u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u8bbe\u7f6e\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u7b49\u4e8e \u8868\u8fbe\u5f0f \u3002\u7531\u4e8e\u6211\u4eec\u6ca1\u6709\u5728 URL \u4e2d\u6307\u5b9a\u5c5e\u6027\uff0c\u56e0\u6b64\u8bbe\u7f6e\u4e3a null\u3002<samp>{!$CurrentPage.parameters.key}<\/samp><samp>key<\/samp><samp>value<\/samp><\/li>\n\n\n\n<li>\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u540e\uff0c\u5c06\u6267\u884c\u8fd9\u4e9b\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u7684\u6240\u6709\u5c5e\u6027\u3002\u5c5e\u6027\u662f setter \u5c06\u6b64\u5c5e\u6027\u7684\u503c\u8d4b\u7ed9 \u5173\u8054\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u63a7\u5236\u5668\u3002\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u786e\u5b9e\u6709\u4e00\u4e2a\u65b9\u6cd5\uff0c\u56e0\u6b64\u4f1a\u6267\u884c\u5b83\u3002\u8be5\u65b9\u6cd5\u5c06 on \u5c5e\u6027\u8bbe\u7f6e\u4e3a\u5c5e\u6027\u3002\u8be5\u5c5e\u6027\u8bbe\u7f6e\u4e3a null\uff0c\u56e0\u6b64\u8bbe\u7f6e\u4e3a null\u3002<samp>assignTo<\/samp><samp>assignTo<\/samp><samp>editMode<\/samp><samp>assignTo<\/samp><samp>assignTo<\/samp><samp>selectedValue<\/samp><samp>value<\/samp><samp>value<\/samp><samp>selectedValue<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u4e0b\u4e00\u6b65\u662f\u8ba1\u7b97\u7ec4\u4ef6\u3001\u8868\u8fbe\u5f0f\u548c \u6240\u9700\u7684 getter \u548c setter \u65b9\u6cd5\u3002\u867d\u7136\u6211\u4eec\u5c06\u5728\u4e0b\u9762\u9010\u6b65\u4ecb\u7ecd\u8fd9\u4e9b\uff0c \u8bf7\u8bb0\u4f4f\uff0c\u8fd9\u4e9b\u8bc4\u4f30\u7684\u987a\u5e8f\u662f\u4e0d\u786e\u5b9a\u7684\uff0c\u53ef\u80fd\u662f \u4e0e\u4ee5\u4e0b\u5185\u5bb9\u4e0d\u540c\uff1a<samp>action<\/samp><samp>&lt;apex:page&gt;<\/samp>\n<ul class=\"wp-block-list\">\n<li>\u7ec4\u4ef6 \u5177\u6709\u4e00\u4e2a\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027 \u8c03\u7528 \u4e0a\u7684\u65b9\u6cd5 \u6269\u5c55\u3002\u8be5\u65b9\u6cd5\u5c06\u5bf9\u8c61\u4e0a\u7684\u5b57\u6bb5\u8bbe\u7f6e\u4e3a 10\u3002<samp>&lt;apex:page&gt;<\/samp><samp>action<\/samp><samp>resetEmp<\/samp><samp>numberofemployees<\/samp><samp>acct<\/samp><\/li>\n\n\n\n<li>\u9875\u9762\u4e0a\u6709\u51e0\u4e2a\u8ba1\u7b97\u8868\u8fbe\u5f0f\u3002\u8ba9\u6211\u4eec\u5173\u6ce8\u4e09\u4e2a\uff1a\n<ul class=\"wp-block-list\">\n<li><samp>&lt;apex:pageBlock&nbsp;title=&#8221;{!greeting}&#8221;&gt;<\/samp>\u8be5\u5c5e\u6027\u8c03\u7528 getter \u65b9\u6cd5 \u751f\u547d\u5468\u671f\u6269\u5c55\u3002\u8fd9\u5728\u9875\u9762\u4e0a\u5448\u73b0\u4e3a \u201c\u5168\u7403\u5a92\u4f53\u65f6\u4e8b\u4fe1\u606f\u201d\u3002<samp>title<\/samp><samp>&lt;apex:pageblock&gt;<\/samp><samp>getGreeting<\/samp><\/li>\n\n\n\n<li><samp>&lt;apex:form&nbsp;rendered=&#8221;{!$CurrentPage.parameters.key =&nbsp;&#8216;true&#8217;}&#8221;&gt;<\/samp>\u8bbe\u7f6e\u4e86 on \u5c5e\u6027 \u57fa\u4e8e\u53c2\u6570\u7684\u503c\u3002\u6211\u4eec\u5728\u8c03\u7528 \u9875\u9762\uff0c\u56e0\u6b64\u4e0d\u4f1a\u5448\u73b0\u8868\u5355\u3002<samp>rendered<\/samp><samp>&lt;apex:form&gt;<\/samp><samp>key<\/samp><samp>key<\/samp><\/li>\n\n\n\n<li><samp>Value =&nbsp;{!value}&lt;br\/&gt; selectedValue =&nbsp;{!selectedValue}&lt;br\/&gt; EditMode =&nbsp;{!EditMode}<\/samp>\u6b64\u8868\u8fbe\u5f0f\u51fa\u73b0\u5728\u81ea\u5b9a\u4e49\u4e2d \u5143\u4ef6\u3002\u6211\u4eec\u5df2\u7ecf\u8ba8\u8bba\u8fc7\u4e86\uff0c\u5e76\u4e14\u5df2\u7ecf\u51c6\u5907\u597d\u4e86 \u4f46\u662f\uff0c\u5bf9\u4e8e null\uff0c\u5219 \u7684\u503c\u5c1a\u672a \u5df2\u77e5\u3002 \u662f \u4e0a\u7684\u5e03\u5c14\u53d8\u91cf\u3002\u5b83\u662f\u6839\u636e \u662f\u5426\u662f \u7b49\u4e8e null\uff1a<samp>value<\/samp><samp>selectedValue<\/samp><samp>EditMode<\/samp><samp>EditMode<\/samp><samp>componentController<\/samp><samp>value<\/samp><code>set { selectedValue = value; \/\/ Side effect here - don't do this! editMode = (value != null); }<\/code>\u7531\u4e8e\u4e3a null\uff0c\u56e0\u6b64\u8bbe\u7f6e\u4e3a \u81ea\u3002\u6ce8\u610f \u4f46\u662f\uff0csetter \u65b9\u6cd5\u5b58\u5728\u526f\u4f5c\u7528 \u4e3a\u3002\u5982 \u90e8\u5206\u8bbe\u7f6e\uff0c\u6211\u4eec\u8fd8\u8bbe\u7f6e\u4e3a \u3002\u7531\u4e8e\u4e3a null\uff0c \u8fd9\u4e0d\u4f1a\u6539\u53d8\u4efb\u4f55\u4e8b\u60c5\uff0c\u4f46\u8fd9\u79cd\u884c\u4e3a\u6709\u4e00\u4e2a \u5f71\u54cd\u5728\u540e\u9762\u7684\u793a\u4f8b\u4e2d\u3002<samp>value<\/samp><samp>EditMode<\/samp><samp>false<\/samp><samp>EditMode<\/samp><samp>editMode<\/samp><samp>selectedValue<\/samp><samp>value<\/samp><samp>value<\/samp><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u5176\u4ed6\u8868\u8fbe\u5f0f\u548c\u65b9\u6cd5\u7684\u8ba1\u7b97\u65b9\u5f0f\u7c7b\u4f3c \u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7531\u4e8e\u7ec4\u4ef6\u4e0d\u662f \u5448\u73b0\u65f6\uff0c\u4e0d\u4f1a\u521b\u5efa\u89c6\u56fe\u72b6\u6001\u3002<samp>&lt;apex:form&gt;<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u6700\u540e\u4e00\u6b65\u662f\u5c06 HTML \u53d1\u9001\u5230\u6d4f\u89c8\u5668\uff0c\u6d4f\u89c8\u5668 \u5448\u73b0 HTML\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u83b7\u53d6\u8bf7\u6c42\u793a\u4f8b\u4e8c<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u7b2c\u4e8c\u4e2a\u793a\u4f8b\uff0c\u4f7f\u7528\u683c\u5f0f\u4e3a\u00a0https:\/\/\u00a0<var>Salesforce_instance<\/var>\/apex\/setEmps\uff1fid=<var>recordId<\/var>&amp;key=false\u00a0\u7684 URL \u8bbf\u95ee\u9875\u9762\u3002 \u5176\u4e2d \u662f\u5b9e\u4f8b\u7684\u540d\u79f0\uff08\u4f8b\u5982\uff0c\uff09\uff0c\u5e76\u4e14\u662f ID \u7ec4\u7ec7\u4e2d\u7684\u5ba2\u6237\u8bb0\u5f55\uff08\u4f8b\u5982\uff0c\uff09\u3002\u4e0e\u7b2c\u4e00\u4e2a\u793a\u4f8b\u4e0d\u540c\uff0c\u6b64\u793a\u4f8b\u5305\u62ec \u7b2c\u4e8c\u4e2a\u53c2\u6570\u00a0key=false\u3002\u60a8\u5c06\u770b\u5230\u4e00\u4e2a\u5305\u542b\u5185\u5bb9\u7684\u9875\u9762 \u7c7b\u4f3c\u4e8e\u4ee5\u4e0b\u5185\u5bb9\uff1a<samp>setEmpsSalesforce_instancena1recordID001D000000IRt53<\/samp><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"186\" class=\"wp-image-4064\" style=\"\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl5.png\" alt=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl5.png 793w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl5-300x70.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl5-768x180.png 768w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u518d\u6b21\u8ddf\u8e2a\u751f\u547d\u5468\u671f\u3002\u6b64\u9875\u9762\u4e5f\u662f get \u8bf7\u6c42\u7684\u7ed3\u679c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728 get \u8bf7\u6c42\u4e2d\u53d1\u751f\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f \u8c03\u7528\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\u3002\u8be5\u65b9\u6cd5\u662f \u4e0a\u7684\u6784\u9020\u51fd\u6570 \u63a7\u5236\u5668\u548c\u65b9\u6cd5 \u662f\u6269\u5c55\u7684\u6784\u9020\u51fd\u6570\u3002\u8fd9\u4e9b\u88ab\u6267\u884c\uff0c\u73b0\u5728\u6709\u4e24\u4e2a\u5bf9\u8c61 \u5b58\u5728\u3002\u63a7\u5236\u5668\u73b0\u5728\u6709\u4e00\u4e2a\u53d8\u91cf\uff0c\u79f0\u4e3a \uff0c\u5b83\u662f\u67e5\u8be2\u7684\u7ed3\u679c\uff0c\u8be5\u67e5\u8be2\u4f7f\u7528 URL \u4e2d\u7684\u53c2\u6570\u6765\u6807\u8bc6\u54ea\u4e2a \u8981\u67e5\u8be2\u7684\u5ba2\u6237\u8bb0\u5f55\u3002\u8be5\u6269\u5c55\u73b0\u5728\u6709\u4e00\u4e2a\u53d8\u91cf\uff0c\u79f0\u4e3a \uff0c\u8be5\u53d8\u91cf\u662f\u901a\u8fc7\u8c03\u7528 \u63a7\u5236\u5668\u3002<samp>myController<\/samp><samp>lifecycle<\/samp><samp>account<\/samp><samp>id<\/samp><samp>acct<\/samp><samp>getAccount<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u4e0b\u4e00\u6b65\u662f\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5e76\u6267\u884c \u5173\u8054\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u6269\u5c55\u4e0a\u7684\u6784\u9020\u51fd\u6570\u65b9\u6cd5\u3002\u9875\u9762 \u5305\u62ec\u4e00\u4e2a\u81ea\u5b9a\u4e49 \u5143\u4ef6\uff1a<code>&lt;c:editMode value=\"{!$CurrentPage.parameters.key}\"\/&gt;<\/code>\u8fd9 \u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5177\u6709\u6ca1\u6709\u6784\u9020\u51fd\u6570\u7684\u5173\u8054\u63a7\u5236\u5668\uff0c\u56e0\u6b64 \u63a7\u5236\u5668\u5bf9\u8c61\u662f\u4f7f\u7528\u9690\u5f0f\u7684\u3001\u65e0\u53c2\u6570\u7684\u3001\u516c\u5171\u7684 \u6784\u9020 \u51fd\u6570\u3002\u4f5c\u4e3a\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u4e00\u90e8\u5206\uff0c\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u7684\u5c5e\u6027 \u5df2\u8bbe\u7f6e\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u7b49\u4e8e\u8868\u8fbe\u5f0f \u7684\u7ed3\u679c\u3002\u6211\u4eec \u5c06\u5c5e\u6027\u6307\u5b9a\u4e3a false\uff0c\u56e0\u6b64\u8bbe\u7f6e\u4e3a \u5047\u3002<samp>value<\/samp><samp>{!$CurrentPage.parameters.key}<\/samp><samp>key<\/samp><samp>value<\/samp><\/li>\n\n\n\n<li>\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u540e\uff0c\u5c06\u6267\u884c\u8fd9\u4e9b\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u7684\u6240\u6709\u5c5e\u6027\u3002\u8be5\u65b9\u6cd5\u5c06 on \u5c5e\u6027\u8bbe\u7f6e\u4e3a\u5c5e\u6027\u3002\u8be5\u5c5e\u6027\u8bbe\u7f6e\u4e3a false\uff0c\u56e0\u6b64\u8bbe\u7f6e\u4e3a false\u3002<samp>assignTo<\/samp><samp>assignTo<\/samp><samp>selectedValue<\/samp><samp>value<\/samp><samp>value<\/samp><samp>selectedValue<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u4e0b\u4e00\u6b65\u662f\u8ba1\u7b97\u7ec4\u4ef6\u3001\u8868\u8fbe\u5f0f\u548c \u6240\u9700\u7684 getter \u548c setter \u65b9\u6cd5\u3002\u867d\u7136\u6211\u4eec\u5c06\u5728\u4e0b\u9762\u9010\u6b65\u4ecb\u7ecd\u8fd9\u4e9b\uff0c \u8bf7\u8bb0\u4f4f\uff0c\u8fd9\u4e9b\u8bc4\u4f30\u7684\u987a\u5e8f\u662f\u4e0d\u786e\u5b9a\u7684\uff0c\u53ef\u80fd\u662f \u4e0e\u4ee5\u4e0b\u5185\u5bb9\u4e0d\u540c\uff1a<samp>action<\/samp><samp>&lt;apex:page&gt;<\/samp>\n<ul class=\"wp-block-list\">\n<li>\u7ec4\u4ef6 \u5177\u6709\u4e00\u4e2a\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027 \u8c03\u7528 \u4e0a\u7684\u65b9\u6cd5 \u6269\u5c55\u3002\u8be5\u65b9\u6cd5\u5c06\u5bf9\u8c61\u4e0a\u7684\u5b57\u6bb5\u8bbe\u7f6e\u4e3a 10\u3002<samp>&lt;apex:page&gt;<\/samp><samp>action<\/samp><samp>resetEmp<\/samp><samp>numberofemployees<\/samp><samp>acct<\/samp><\/li>\n\n\n\n<li>\u5728\u9875\u9762\u4e0a\u7684\u8868\u8fbe\u5f0f\u4e2d\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u6211\u4eec\u9009\u62e9\u7684\u4e09\u4e2a\u662f\u5982\u4f55\u8ba1\u7b97\u7684\uff1a<samp>&lt;apex:pageBlock&nbsp;title=&#8221;{!greeting}&#8221;&gt;<\/samp>\u5c5e\u6027 on \u8c03\u7528 getter \u65b9\u6cd5 on \u751f\u547d\u5468\u671f\u6269\u5c55\u3002\u5b83\u5728\u9875\u9762\u4e0a\u5448\u73b0\u4e3a \u201c\u5168\u7403\u5a92\u4f53\u65f6\u4e8b\u4fe1\u606f\u201d\u3002<samp>title<\/samp><samp>&lt;apex:pageblock&gt;<\/samp><samp>getGreeting<\/samp><samp>&lt;apex:form&nbsp;rendered=&#8221;{!$CurrentPage.parameters.key =&nbsp;&#8216;true&#8217;}&#8221;&gt;<\/samp>\u5448\u73b0\u7684\u5c5e\u6027 on \u662f\u6839\u636e \u53c2\u6570\u3002 \u6211\u4eec\u8bbe\u7f6e\u4e3a\u4f55\u65f6 \u8c03\u7528\u9875\u9762\uff0c\u56e0\u6b64\u4e0d\u4f1a\u5448\u73b0\u8868\u5355\u3002<samp>&lt;apex:form&gt;<\/samp><samp>key<\/samp><samp>key<\/samp><samp>false<\/samp><samp>Value =&nbsp;{!value}&lt;br\/&gt; selectedValue =&nbsp;{!selectedValue}&lt;br\/&gt; EditMode =&nbsp;{!EditMode}<\/samp>\u6b64\u8868\u8fbe\u5f0f\u51fa\u73b0\u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d\u3002\u65e2\u7136\u4e0d\u662f null\uff0c\u662f \u8bbe\u7f6e\u4e3a \u3002\u5728 \u6b64\u70b9\u8bbe\u7f6e\u4e3a null\u3002\u8bb0\u5f97 \u4f46\u662f\uff0csetter \u65b9\u6cd5\u5177\u6709 \u526f\u4f5c\u7528\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u526f\u4f5c\u7528\u8bbe\u7f6e\u4e3a\u5c5e\u6027 \u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u3002\u7531\u4e8e\u8bbe\u7f6e\u4e3a \uff0c\u8bbe\u7f6e\u4e3a \u5047\u3002\u8fd9\u8bf4\u660e\u4e86\u4e3a\u4ec0\u4e48\u4f60\u4e0d\u5e94\u8be5\u4f7f\u7528\u526f\u4f5c\u7528 \u5728\u4f60\u7684\u65b9\u6cd5\u4e2d\u3002\u5982\u679c\u8bc4\u4f30\u987a\u5e8f\u4e0d\u540c\uff0c\u5e76\u4e14 \u7684\u503c\u662f\u5728 setter for \u7684\u8ba1\u7b97\u7ed3\u679c\u4ecd\u4e3a null\u3002\u6267\u884c \u8ba2\u5355\u4e0d\u4fdd\u8bc1\uff0c\u7ed3\u679c\u53ef\u80fd \u66f4\u6539\u4e0b\u6b21\u8bbf\u95ee\u6b64\u9875\u9762\u7684\u65f6\u95f4\u3002<samp>value<\/samp><samp>EditMode<\/samp><samp>true<\/samp><samp>selectedValue<\/samp><samp>EditMode<\/samp><samp>selectedValue<\/samp><samp>value<\/samp><samp>value<\/samp><samp>false<\/samp><samp>selectedValue<\/samp><samp>selectedValue<\/samp><samp>EditMode<\/samp><samp>selectedValue<\/samp><samp>selectedValue<\/samp>\u8b66\u544a\u4e0d\u8981\u5728\u5438\u6c14\u5242\u4e2d\u4f7f\u7528\u526f\u4f5c\u7528 \u6216\u4e8c\u4f20\u624b\uff01<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7531\u4e8e\u7ec4\u4ef6\u4e0d\u662f \u5448\u73b0\u65f6\uff0c\u4e0d\u4f1a\u521b\u5efa\u89c6\u56fe\u72b6\u6001<samp>&lt;apex:form&gt;<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u6700\u540e\u4e00\u6b65\u662f\u5c06 HTML \u53d1\u9001\u5230\u6d4f\u89c8\u5668\uff0c\u6d4f\u89c8\u5668 \u5448\u73b0 HTML\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u83b7\u53d6\u8bf7\u6c42\u793a\u4f8b\u4e09<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u7b2c\u4e09\u4e2a\u793a\u4f8b\uff0c\u4f7f\u7528\u683c\u5f0f\u4e3a\u00a0https:\/\/\u00a0<var>Salesforce_instance\/<\/var>apex\/setEmps\uff1fid=<var>recordId<\/var>&amp;key=true\u00a0\u7684 URL \u8bbf\u95ee\u9875\u9762\u3002 \u5176\u4e2d \u662f\u5b9e\u4f8b\u7684\u540d\u79f0\uff08\u4f8b\u5982\uff0c\uff09\uff0c\u5e76\u4e14\u662f \u7ec4\u7ec7\u4e2d\u7684\u5ba2\u6237\u8bb0\u5f55\uff08\u4f8b\u5982\uff0c\uff09\u3002\u4e0e\u7b2c\u4e8c\u4e2a\u793a\u4f8b\u4e0d\u540c\uff0c\u6b64\u793a\u4f8b\u8bbe\u7f6e\u00a0key=true\u3002\u60a8\u5c06\u770b\u5230\u4e00\u4e2a\u9875\u9762\uff0c\u5176\u5185\u5bb9\u7c7b\u4f3c\u4e8e \u4ee5\u540e\uff1a<samp>setEmpsSalesforce_instancena1recordID001D000000IRt53<\/samp><img loading=\"lazy\" decoding=\"async\" width=\"795\" height=\"331\" class=\"wp-image-4065\" style=\"\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl6.png\" alt=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl6.png 795w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl6-300x125.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl6-768x320.png 768w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u518d\u8ddf\u8e2a\u4e00\u6b21 get \u8bf7\u6c42\u751f\u547d\u5468\u671f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728 get \u8bf7\u6c42\u4e2d\u53d1\u751f\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f \u8c03\u7528\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55\u3002\u8be5\u65b9\u6cd5\u662f \u63a7\u5236\u5668\uff0c\u65b9\u6cd5\u662f \u6269\u5c55\u4e0a\u7684\u6784\u9020\u51fd\u6570\u3002\u8fd9\u4e9b\u5bf9\u8c61\u88ab\u6267\u884c\uff0c\u5e76\u4e14\u8fd9\u4e24\u4e2a\u5bf9\u8c61\u73b0\u5728\u5b58\u5728\u3002 \u63a7\u5236\u5668\u73b0\u5728\u6709\u4e00\u4e2a\u53d8\u91cf\uff0c\u79f0\u4e3a \uff0c\u5b83\u662f\u67e5\u8be2\u7684\u7ed3\u679c\uff0c\u8be5\u67e5\u8be2\u4f7f\u7528 URL \u4e2d\u7684\u53c2\u6570\u6765\u6807\u8bc6\u54ea\u4e2a \u8981\u67e5\u8be2\u7684\u5ba2\u6237\u8bb0\u5f55\u3002\u8be5\u6269\u5c55\u73b0\u5728\u6709\u4e00\u4e2a\u53d8\u91cf\uff0c\u79f0\u4e3a \uff0c\u8be5\u53d8\u91cf\u662f\u901a\u8fc7\u8c03\u7528 \u63a7\u5236\u5668\u3002<samp>myController<\/samp><samp>lifecycle<\/samp><samp>account<\/samp><samp>id<\/samp><samp>acct<\/samp><samp>getAccount<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u4e0b\u4e00\u6b65\u662f\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5e76\u6267\u884c \u5173\u8054\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u6269\u5c55\u4e0a\u7684\u6784\u9020\u51fd\u6570\u65b9\u6cd5\u3002\u9875\u9762 \u5305\u62ec\u4e00\u4e2a\u81ea\u5b9a\u4e49 \u5143\u4ef6\uff1a<code>&lt;c:editMode value=\"{!$CurrentPage.parameters.key}\"\/&gt;<\/code>\u8fd9 \u81ea\u5b9a\u4e49\u7ec4\u4ef6\u5177\u6709\u6ca1\u6709\u6784\u9020\u51fd\u6570\u7684\u5173\u8054\u63a7\u5236\u5668\uff0c\u56e0\u6b64 \u63a7\u5236\u5668\u5bf9\u8c61\u662f\u4f7f\u7528\u9690\u5f0f\u7684\u3001\u65e0\u53c2\u6570\u7684\u3001\u516c\u5171\u7684 \u6784\u9020 \u51fd\u6570\u3002\u4f5c\u4e3a\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u4e00\u90e8\u5206\uff0c\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u7684\u5c5e\u6027 \u5df2\u8bbe\u7f6e\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u7b49\u4e8e\u8868\u8fbe\u5f0f \u7684\u7ed3\u679c\u3002\u6211\u4eec \u5c06\u5c5e\u6027\u6307\u5b9a\u4e3a true\uff0c\u5219\u8bbe\u7f6e\u4e3a \u771f\u3002<samp>value<\/samp><samp>{!$CurrentPage.parameters.key}<\/samp><samp>key<\/samp><samp>value<\/samp><\/li>\n\n\n\n<li>\u521b\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u540e\uff0c\u5c06\u6267\u884c\u8fd9\u4e9b\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e0a\u7684\u6240\u6709\u5c5e\u6027\u3002\u8be5\u65b9\u6cd5\u5c06 on \u5c5e\u6027\u8bbe\u7f6e\u4e3a\u5c5e\u6027\u3002\u8be5\u5c5e\u6027\u8bbe\u7f6e\u4e3a true\uff0c\u56e0\u6b64\u8bbe\u7f6e\u4e3a true\u3002<samp>assignTo<\/samp><samp>assignTo<\/samp><samp>selectedValue<\/samp><samp>value<\/samp><samp>value<\/samp><samp>selectedValue<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u4e0b\u4e00\u6b65\u662f\u8ba1\u7b97\u7ec4\u4ef6\u3001\u8868\u8fbe\u5f0f\u548c \u6240\u9700\u7684 getter \u548c setter \u65b9\u6cd5\u3002\u867d\u7136\u6211\u4eec\u5c06\u5728\u4e0b\u9762\u9010\u6b65\u4ecb\u7ecd\u8fd9\u4e9b\uff0c \u8bf7\u8bb0\u4f4f\uff0c\u8fd9\u4e9b\u8bc4\u4f30\u7684\u987a\u5e8f\u662f\u4e0d\u786e\u5b9a\u7684\uff0c\u53ef\u80fd\u662f \u4e0e\u4ee5\u4e0b\u5185\u5bb9\u4e0d\u540c\uff1a<samp>action<\/samp><samp>&lt;apex:page&gt;<\/samp>\n<ul class=\"wp-block-list\">\n<li>\u7ec4\u4ef6 \u5177\u6709\u4e00\u4e2a\u5c5e\u6027\uff0c\u8be5\u5c5e\u6027 \u8c03\u7528 \u4e0a\u7684\u65b9\u6cd5 \u6269\u5c55\u3002\u8be5\u65b9\u6cd5\u5c06\u5bf9\u8c61\u4e0a\u7684\u5b57\u6bb5\u8bbe\u7f6e\u4e3a 10\u3002<samp>&lt;apex:page&gt;<\/samp><samp>action<\/samp><samp>resetEmp<\/samp><samp>numberofemployees<\/samp><samp>acct<\/samp><\/li>\n\n\n\n<li>\u5728\u9875\u9762\u4e0a\u7684\u8868\u8fbe\u5f0f\u4e2d\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u6211\u4eec\u9009\u62e9\u7684\u4e09\u4e2a\u662f\u5982\u4f55\u8ba1\u7b97\u7684\uff1a<samp>&lt;apex:pageBlock&nbsp;title=&#8221;{!greeting}&#8221;&gt;<\/samp>\u5c5e\u6027 on \u8c03\u7528 getter \u65b9\u6cd5 on \u751f\u547d\u5468\u671f\u6269\u5c55\u3002\u5b83\u5728\u9875\u9762\u4e0a\u5448\u73b0\u4e3a \u201c\u5168\u7403\u5a92\u4f53\u65f6\u4e8b\u4fe1\u606f\u201d\u3002<samp>title<\/samp><samp>&lt;apex:pageblock&gt;<\/samp><samp>getGreeting<\/samp><samp>&lt;apex:form&nbsp;rendered=&#8221;{!$CurrentPage.parameters.key =&nbsp;&#8216;true&#8217;}&#8221;&gt;<\/samp>\u5c5e\u6027 on \u662f\u6839\u636e \u53c2\u6570\u3002 \u6211\u4eec\u8bbe\u7f6e\u4e3a\u4f55\u65f6 \u8c03\u7528\u9875\u9762\uff0c\u4ee5\u4fbf\u5448\u73b0\u8868\u5355\u3002<samp>rendered<\/samp><samp>&lt;apex:form&gt;<\/samp><samp>key<\/samp><samp>key<\/samp><samp>true<\/samp><samp>Value =&nbsp;{!value}&lt;br\/&gt; selectedValue =&nbsp;{!selectedValue}&lt;br\/&gt; EditMode =&nbsp;{!EditMode}<\/samp>\u6b64\u8868\u8fbe\u5f0f\u51fa\u73b0\u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d\u3002\u65e2\u7136\u4e0d\u662f null\uff0c\u662f \u8bbe\u7f6e\u4e3a \u3002\u5982 \u524d\u9762\u7684\u793a\u4f8b\u8bbe\u7f6e\u4e3a null\u3002\u526f\u4f5c\u7528 \u5728 setter \u65b9\u6cd5\u4e2d\u8bbe\u7f6e\u4e3a \u3002<samp>value<\/samp><samp>EditMode<\/samp><samp>true<\/samp><samp>selectedValue<\/samp><samp>EditMode<\/samp><samp>selectedValue<\/samp><samp>true<\/samp><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7531\u4e8e\u7ec4\u4ef6\u662f \u5448\u73b0\u65f6\uff0c\u5c06\u521b\u5efa\u89c6\u56fe\u72b6\u6001\u3002<samp>&lt;apex:form&gt;<\/samp><\/li>\n\n\n\n<li>get \u8bf7\u6c42\u7684\u6700\u540e\u4e00\u6b65\u662f\u5c06 HTML \u53d1\u9001\u5230\u6d4f\u89c8\u5668\uff0c\u6d4f\u89c8\u5668 \u5448\u73b0 HTML\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u56de\u53d1\u8bf7\u6c42\u793a\u4f8b<\/h2>\n\n\n\n<p>\u4e0e\u524d\u4e24\u4e2a\u793a\u4f8b\u4e0d\u540c\uff0c\u7b2c\u4e09\u4e2a\u793a\u4f8b\u5448\u73b0\u4e86\u53ef\u7f16\u8f91\u7684\u6700\u7ec8\u9875\u9762 \u5b57\u6bb5\u53ef\u5355\u51fb\u6309\u94ae\u3002\u8981\u4e86\u89e3\u56de\u53d1\u8bf7\u6c42\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u8bf7\u4f7f\u7528\u6700\u7ec8\u7684 \u9875\u9762\uff0c\u5c06\u5e10\u6237\u540d\u79f0\u66f4\u6539\u4e3a\u201cPan Galactic Media\u201d\uff0c \u5458\u5de5\u4eba\u6570\u4e3a 42 \u4eba\u201c\uff0c\u884c\u4e1a\u4eba\u6570\u4e3a \u201d\u5176\u4ed6\u201d\u3002\u7136\u540e \u70b9\u51fb<strong>\u4fdd\u5b58<\/strong>\u3002\u8fd9\u5c06\u542f\u52a8\u56de\u53d1\u8bf7\u6c42\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u56de\u53d1\u8bf7\u6c42\u4e2d\u53d1\u751f\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f\u89c6\u56fe\u72b6\u6001\u4e3a \u89e3\u7801\u3002\u89c6\u56fe\u72b6\u6001\u5305\u542b\u5448\u73b0 \u9875\u3002\u5982\u679c\u5728\u56de\u53d1\u8bf7\u6c42\u671f\u95f4\u64cd\u4f5c\u5931\u8d25\uff0c\u5219\u89c6\u56fe\u72b6\u6001\u4e3a \u7528\u4e8e\u5411\u7528\u6237\u663e\u793a\u9875\u9762\u3002<\/li>\n\n\n\n<li>\u63a5\u4e0b\u6765\uff0c\u5bf9\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u4e0a\u7684\u6240\u6709\u8868\u8fbe\u5f0f\u548c\u65b9\u6cd5\u8fdb\u884c\u8ba1\u7b97 \u6269\u5c55\u88ab\u6267\u884c\u3002\u5728\u9875\u9762\u4e0a\u7684\u8868\u8fbe\u5f0f\u4e2d\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u6211\u4eec\u7684 \u5bf9\u9009\u5b9a\u7684\u4e09\u4e2a\u8fdb\u884c\u8bc4\u4f30\uff1a<samp>&lt;apex:pageBlock&nbsp;title=&#8221;{!greeting}&#8221;&gt;<\/samp>\u5c5e\u6027 on \u8c03\u7528\u751f\u547d\u5468\u671f\u6269\u5c55\u4e0a\u7684 getter \u65b9\u6cd5\u3002\u5728\u6211\u4eec\u7684\u7f16\u8f91\u4e2d\uff0c \u6211\u4eec\u66f4\u6539\u4e86\u5e10\u6237\u540d\u79f0\u7684\u503c\u3002\u56e0\u6b64\uff0c\u503c\u66f4\u6539\u4e3a \u201c\u6cdb\u94f6\u6cb3\u5a92\u4f53\u5f53\u524d\u4fe1\u606f\u3002\u201d<samp>title<\/samp><samp>&lt;apex:pageblock&gt;<\/samp><samp>getGreeting<\/samp><samp>greeting<\/samp><samp>&lt;apex:form&nbsp;rendered=&#8221;{!$CurrentPage.parameters.key =&nbsp;&#8216;true&#8217;}&#8221;&gt;<\/samp>\u5c5e\u6027 on \u662f \u6839\u636e\u53c2\u6570\u7684\u503c\u8fdb\u884c\u8bbe\u7f6e\u3002\u6211\u4eec\u6ca1\u6709\u66f4\u6539\u53c2\u6570\uff0c\u56e0\u6b64\u503c \u5728\u89c6\u56fe\u72b6\u6001\u4e2d\u3002\u7531\u4e8e\u8be5\u503c\u4e3a true\uff0c\u56e0\u6b64\u5f53 \u89c6\u56fe\u72b6\u6001\u5df2\u521b\u5efa\uff0c\u5b83\u4ecd\u7136\u662f true\uff0c\u8868\u5355\u662f \u5448\u73b0\u3002<samp>rendered<\/samp><samp>&lt;apex:form&gt;<\/samp><samp>key<\/samp><samp>key<\/samp><samp>Value =&nbsp;{!value}&lt;br\/&gt; selectedValue =&nbsp;{!selectedValue}&lt;br\/&gt; EditMode =&nbsp;{!EditMode}<\/samp>\u6211\u4eec\u6ca1\u6709\u66f4\u6539\u8fd9\u4e9b\u503c\u4e2d\u7684\u4efb\u4f55\u4e00\u4e2a\uff0c\u56e0\u6b64\uff0c\u5bf9\u4e8e\u6bcf\u4e2a \u8868\u8fbe\u5f0f\uff0c\u5219\u4f7f\u7528\u89c6\u56fe\u72b6\u6001\u4e2d\u7684\u503c\u3002<\/li>\n\n\n\n<li>\u6700\u540e\uff0c\u4fdd\u5b58\u64cd\u4f5c\uff08\u89e6\u53d1\u56de\u53d1\u8bf7\u6c42\u7684\u64cd\u4f5c\uff09\u662f \u8bc4\u4ef7\u3002\u4fdd\u5b58\u64cd\u4f5c\u662f\u4ee5\u4e0b\u65b9\u6cd5 \u63a7\u5236\u5668\uff1a<code>public PageReference save() { update account; return null; }<\/code>\u8fd9 \u65b9\u6cd5\u4f7f\u7528\u65b0\u6570\u636e\u66f4\u65b0\u8bb0\u5f55\u3002\u5982\u679c\u6b64\u65b9\u6cd5\u5931\u8d25\uff0c\u5219 \u5982\u679c\u7528\u6237\u6ca1\u6709\u66f4\u65b0\u8bb0\u5f55\u7684\u6743\u9650\uff0c\u6216\u8005\u5982\u679c \u6709\u7531\u66f4\u6539\u89e6\u53d1\u7684\u9a8c\u8bc1\u89c4\u5219\uff0c\u9875\u9762\u662f \u4e0e\u63cf\u8ff0\u9519\u8bef\u7684\u9519\u8bef\u6d88\u606f\u4e00\u8d77\u663e\u793a\u3002\u503c \u8f93\u5165\u7684\u7528\u6237\u4e0d\u4f1a\u4e22\u5931\u3002\u5b83\u4eec\u4fdd\u6301\u7528\u6237\u5355\u51fb\u65f6\u7684\u72b6\u6001\u00a0<strong>\u201c\u4fdd\u5b58<\/strong>\u201d\u6309\u94ae\u3002\u5047\u8bbe\u6ca1\u6709\u9519\u8bef\uff0c\u5219 \u5bf9\u8c61\u4e0a\u7684\u6570\u636e\u4f1a\u66f4\u65b0\uff0c\u89c6\u56fe\u72b6\u6001\u4f1a\u66f4\u65b0\uff0c\u5e76\u4e14\uff0c\u7531\u4e8e \u89e6\u53d1\u56de\u53d1\u7684\u64cd\u4f5c\u4e0d\u5305\u62ec\u9875\u9762\u91cd\u5b9a\u5411\uff0c\u5373\u89c6\u56fe \u72b6\u6001\u5df2\u66f4\u65b0\u3002\u751f\u6210\u7684 HTML \u5c06\u53d1\u9001\u5230\u6d4f\u89c8\u5668\uff1a<img loading=\"lazy\" decoding=\"async\" width=\"795\" height=\"342\" class=\"wp-image-4066\" style=\"\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl7.png\" alt=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl7.png 795w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl7-300x129.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/ctrl7-768x330.png 768w\" sizes=\"(max-width: 795px) 100vw, 795px\" \/><\/li>\n<\/ol>\n\n\n\n<h1 class=\"wp-block-heading\">\u6d4b\u8bd5\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u63a7\u5236\u5668\u6269\u5c55<\/h1>\n\n\n\n<p>\u63a7\u5236\u5668\u6269\u5c55\u548c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\uff0c\u4e0e\u6240\u6709 Apex \u811a\u672c\u4e00\u6837\uff0c\u5e94\u7531 \u5355\u5143\u6d4b\u8bd5\u3002\u5355\u5143\u6d4b\u8bd5\u662f\u9a8c\u8bc1\u7279\u5b9a\u4ee3\u7801\u6bb5\u662f\u5426\u4e3a\u7c7b\u7684\u65b9\u6cd5 \u5de5\u4f5c\u6b63\u5e38\u3002\u5355\u5143\u6d4b\u8bd5\u65b9\u6cd5\u4e0d\u5e26\u53c2\u6570\uff0c\u4e0d\u5411 \u6570\u636e\u5e93\uff0c\u5e76\u5728\u65b9\u6cd5\u5b9a\u4e49\u4e2d\u4f7f\u7528\u5173\u952e\u5b57\u8fdb\u884c\u6807\u8bb0\u3002<samp>testMethod<\/samp><\/p>\n\n\n\n<p>\u5728\u4e3a\u63a7\u5236\u5668\u6269\u5c55\u548c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7c7b\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u65f6\uff0c\u53ef\u4ee5 \u8bbe\u7f6e\u53ef\u5728\u6d4b\u8bd5\u4e2d\u4f7f\u7528\u7684\u67e5\u8be2\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b \u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u548c\u6807\u8bb0\u57fa\u4e8e\u63a7\u5236\u5668\u65b9\u6cd5\u4e2d\u7684\u793a\u4f8b\uff0c\u4f46\u5df2\u6269\u5c55\u4e3a\u5728 URL \u4e2d\u663e\u793a\u4ee5\u4e0b\u67e5\u8be2\u53c2\u6570 \u5bf9\u4e8e\u9875\u9762\uff1a.\u6d4b\u8bd5\u65b9\u6cd5\u7c7b \u4e0b\u9762\uff0c\u5b83\u7ec3\u4e60\u4e86\u6b64\u9875\u9762\u7684\u529f\u80fd\uff1a<samp>?qp=yyyy<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class thecontroller {\n\n            private String firstName;\n            private String lastName;\n            private String company;\n            private String email;\n            private String qp;\n\n            public thecontroller() {\n                this.qp = ApexPages.currentPage().getParameters().get('qp');\n            }\n\n            public String getFirstName() {\n                  return this.firstName;\n            }\n\n            public void setFirstName(String firstName) {\n                  this.firstName = firstName;\n            }\n\n            public String getLastName() {\n                  return this.lastName;\n            }\n\n            public void setLastName(String lastName) {\n                  this.lastName = lastName;\n            }\n\n            public String getCompany() {\n                  return this.company;\n            }\n\n            public void setCompany(String company) {\n                  this.company = company;\n            }\n\n            public String getEmail() {\n                  return this.email;\n            }\n\n            public void setEmail(String email) {\n                  this.email = email;\n            }\n\n            public PageReference save() {\n                PageReference p = null;\n                \n                if (this.qp == null || !'yyyy'.equals(this.qp)) {\n                    p = Page.failure;\n                    p.getParameters().put('error', 'noParam');\n                } else {\n                    try {\n                        Lead newlead = new Lead(LastName=this.lastName, \n                                                FirstName=this.firstName, \n                                                Company=this.company, \n                                                Email=this.email);\n                        insert newlead;\n                    } catch (Exception e) {\n                        p = Page.failure;\n                        p.getParameters().put('error', 'noInsert');\n                    }\n                }\n                \n                if (p == null) {\n                    p = Page.success;\n                }\n                \n                p.setRedirect(true);\n                return p;\n            }\n }<\/code><\/pre>\n\n\n\n<p>\u63a7\u5236\u5668\u8c03\u7528\u53e6\u5916\u4e24\u4e2a\u9875\u9762\uff1a\u6210\u529f\u9875\u9762\u548c\u5931\u8d25\u9875\u9762\u3002\u6587\u672c \u5bf9\u4e8e\u6b64\u793a\u4f8b\uff0c\u8fd9\u4e9b\u9875\u9762\u5e76\u4e0d\u91cd\u8981\u3002\u5b83\u4eec\u53ea\u9700\u8981\u5b58\u5728\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u6807\u8bb0\u4f7f\u7528\u4e0a\u9762\u7684\u63a7\u5236\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"thecontroller\" tabstyle=\"lead\"&gt;\n   &lt;apex:pageBlock&gt;\n      &lt;apex:form&gt;\n         &lt;h1&gt;Test page for adding leads&lt;\/h1&gt;\n         &lt;p&gt;This is a test page for adding leads.&lt;\/p&gt;\n         &lt;p&gt;First name: &lt;apex:inputText value=\"{!FirstName}\"&gt;&lt;\/apex:inputText&gt;&lt;\/p&gt;\n         &lt;p&gt;Last name: &lt;apex:inputText value=\"{!LastName}\"&gt;&lt;\/apex:inputText&gt;&lt;\/p&gt;\n         &lt;p&gt;Company: &lt;apex:inputText value=\"{!Company}\"&gt;&lt;\/apex:inputText&gt;&lt;\/p&gt;\n         &lt;p&gt;Email address: &lt;apex:inputText value=\"{!Email}\"&gt;&lt;\/apex:inputText&gt;&lt;\/p&gt;\n         &lt;apex:commandButton action=\"{!save}\" value=\"Save New Lead\"\/&gt;\n      &lt;\/apex:form&gt;\n   &lt;\/apex:pageBlock&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u7c7b\u6d4b\u8bd5\u63a7\u5236\u5668\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@isTest\npublic class thecontrollerTests {\n\n    public static testMethod void testMyController() {\n        PageReference pageRef = Page.success;\n        Test.setCurrentPage(pageRef);\n      \n        thecontroller controller = new thecontroller();\n        String nextPage = controller.save().getUrl();\n\n        \/\/ Verify that page fails without parameters\n        System.assertEquals('\/apex\/failure?error=noParam', nextPage);\n\n        \/\/ Add parameters to page URL\n        ApexPages.currentPage().getParameters().put('qp', 'yyyy');\n      \n        \/\/ Instantiate a new controller with all parameters in the page\n        controller = new thecontroller(); \n        controller.setLastName('lastname');\n        controller.setFirstName('firstname');\n        controller.setCompany('acme');\n        controller.setEmail('firstlast@acme.com');\n        nextPage = controller.save().getUrl();\n\n        \/\/ Verify that the success page displays\n        System.assertEquals('\/apex\/success', nextPage);\n        Lead&#91;] leads = &#91;select id, email from lead where Company = 'acme'];\n        System.assertEquals('firstlast@acme.com', leads&#91;0].email);\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u5982\u679c\u60a8\u6b63\u5728\u6d4b\u8bd5\u63a7\u5236\u5668\uff0c\u60a8\u53ef\u80fd\u4f1a\u770b\u5230\u4ee5\u4e0b\u9519\u8bef\u6d88\u606f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Method does not exist or incorrect signature: Test.setCurrentPage(System.PageReference)<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u9a8c\u8bc1\u89c4\u5219\u548c\u81ea\u5b9a\u4e49\u63a7\u5236\u5668<\/h1>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u5728\u4f7f\u7528\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7684 Visualforce \u9875\u9762\u4e0a\u8f93\u5165\u6570\u636e\uff0c\u5e76\u4e14\u8be5\u6570\u636e\u5bfc\u81f4\u9a8c\u8bc1 \u89c4\u5219\u9519\u8bef\uff0c\u8be5\u9519\u8bef\u53ef\u4ee5\u663e\u793a\u5728 Visualforce \u9875\u9762\u4e0a\u3002\u5c31\u50cf\u4f7f\u7528\u6807\u51c6\u63a7\u5236\u5668\u7684\u9875\u9762\u4e00\u6837\uff0c\u5982\u679c\u9a8c\u8bc1 \u89c4\u5219\u9519\u8bef\u4f4d\u7f6e\u662f\u4e0e\u7ec4\u4ef6\u5173\u8054\u7684\u5b57\u6bb5\uff0c \u9519\u8bef\u663e\u793a\u5728\u90a3\u91cc\u3002\u5982\u679c\u8bbe\u7f6e\u4e86\u9a8c\u8bc1\u89c4\u5219\u9519\u8bef\u4f4d\u7f6e \u5728\u9875\u9762\u9876\u90e8\uff0c\u4f7f\u7528 \u4e2d\u7684\u7ec4\u4ef6 \u663e\u793a\u9519\u8bef\u3002\u4f46\u662f\uff0c\u8981\u83b7\u53d6\u9875\u9762\u4fe1\u606f\uff0c \u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u5fc5\u987b\u6355\u83b7\u5f02\u5e38\u3002<samp>&lt;apex:inputField&gt;<\/samp><samp>&lt;apex:messages&gt;<\/samp><samp>&lt;apex:page&gt;<\/samp>\u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u6709\u4ee5\u4e0b\u5185\u5bb9 \u9875\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"MyController\" tabStyle=\"Account\"&gt;\n  &lt;apex:messages\/&gt;\n  &lt;apex:form&gt;\n   &lt;apex:pageBlock title=\"Hello {!$User.FirstName}!\"&gt;\n     This is your new page for the {!name} controller. &lt;br\/&gt;\n     You are viewing the {!account.name} account.&lt;br\/&gt;&lt;br\/&gt;\n     Change Account Name: &lt;p&gt;&lt;\/p&gt;\n     &lt;apex:inputField value=\"{!account.name}\"\/&gt; &lt;p&gt;&lt;\/p&gt;\n     Change Number of Locations:\n     &lt;apex:inputField value=\"{!account.NumberofLocations__c}\" id=\"Custom_validation\"\/&gt; \n         &lt;p&gt;(Try entering a non-numeric character here, then hit save.)&lt;\/p&gt;&lt;br\/&gt;&lt;br\/&gt;\n     &lt;apex:commandButton action=\"{!save}\" value=\"Save New Account Name\"\/&gt;\n   &lt;\/apex:pageBlock&gt;\n  &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u8fd9 \u5fc5\u987b\u5728\u6b64\u9875\u7684 URL \u4e2d\u5c06\u6709\u6548\u5ba2\u6237\u8bb0\u5f55\u7684 ID \u6307\u5b9a\u4e3a\u67e5\u8be2\u53c2\u6570 \u8fdb\u884c\u6e32\u67d3\u3002\u4f8b\u5982\uff0chttp:\/\/&nbsp;<var>MyDomainName.salesforce.com\/apex\/myValidationPage?id=001x000xxx3Jsxb<\/var>\u3002\u4f60 \u9700\u8981\u7f16\u5199\u4e00\u4e2a\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\uff0c\u4f8b\u5982 \u4ee5\u540e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class MyController {\n  Account account;\n\n  public PageReference save() {\n    try{\n        update account;\n       }\n    catch(DmlException ex){\n        ApexPages.addMessages(ex);\n       }\n    return null;\n  }\n\n  public String getName() {\n    return 'MyController';\n  }\n\n  public Account getAccount() {\n    if(account == null)\n      account = &#91;select id, name, numberoflocations__c from Account\n        where id = :ApexPages.currentPage().getParameters().get('id')];\n      return account;\n\n  }\n}<\/code><\/pre>\n\n\n\n<p>\u4ec0\u4e48\u65f6\u5019 \u7528\u6237\u4fdd\u5b58\u9875\u9762\uff0c\u5982\u679c\u89e6\u53d1\u9a8c\u8bc1\u9519\u8bef\uff0c\u5219\u6355\u83b7\u5f02\u5e38\u5e76 \u5728\u9875\u9762\u4e0a\u663e\u793a\uff0c\u5c31\u50cf\u6807\u51c6\u63a7\u5236\u5668\u4e00\u6837\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u4f7f\u7528&nbsp;transient&nbsp;\u5173\u952e\u5b57<\/h1>\n\n\n\n<p>\u4f7f\u7528\u5173\u952e\u5b57\u58f0\u660e\u5b9e\u4f8b \u65e0\u6cd5\u4fdd\u5b58\u4e14\u4e0d\u5e94\u4f5c\u4e3a\u89c6\u56fe\u72b6\u6001\u7684\u4e00\u90e8\u5206\u4f20\u8f93\u7684\u53d8\u91cf \u7528\u4e8e Visualforce \u9875\u9762\u3002\u4e3a \u4f8b\uff1a<\/p>\n\n\n\n<p><samp>transient<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Transient Integer currentTotal;<\/code><\/pre>\n\n\n\n<p>\u60a8\u8fd8\u53ef\u4ee5\u5728 Apex \u4e2d\u4f7f\u7528\u5173\u952e\u5b57 \u53ef\u5e8f\u5217\u5316\u7684\u7c7b\uff0c\u5373\u5728\u63a7\u5236\u5668\u3001\u63a7\u5236\u5668\u6269\u5c55\u6216\u7c7b\u4e2d \u5b9e\u73b0 or \u63a5\u53e3\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u5728\u5b9a\u4e49\u7c7b\u578b\u7684\u7c7b\u4e2d\u4f7f\u7528 \u5728\u53ef\u5e8f\u5217\u5316\u7c7b\u4e2d\u58f0\u660e\u7684\u5b57\u6bb5\u3002<samp>transient<\/samp><samp>Batchable<\/samp><samp>Schedulable<\/samp><samp>transient<\/samp><\/p>\n\n\n\n<p>\u5c06\u53d8\u91cf\u58f0\u660e\u4e3a\u7f29\u51cf\u89c6\u56fe \u72b6\u6001\u5927\u5c0f\u3002\u5173\u952e\u5b57\u7684\u4e00\u4e2a\u5e38\u89c1\u7528\u4f8b\u662f Visualforce \u9875\u9762\u4e0a\u7684\u5b57\u6bb5\uff0c\u8be5\u5b57\u6bb5\u4ec5\u5728\u9875\u9762\u6301\u7eed\u65f6\u95f4\u5185\u9700\u8981 \u8bf7\u6c42\uff0c\u4f46\u4e0d\u5e94\u662f\u9875\u9762\u89c6\u56fe\u72b6\u6001\u7684\u4e00\u90e8\u5206\uff0c\u5e76\u4e14\u4f1a\u4f7f\u7528\u8fc7\u591a\u7684\u7cfb\u7edf \u5728\u8bf7\u6c42\u671f\u95f4\u8981\u591a\u6b21\u91cd\u65b0\u8ba1\u7b97\u7684\u8d44\u6e90\u3002<samp>transient<\/samp><samp>transient<\/samp><\/p>\n\n\n\n<p>\u67d0\u4e9b Apex \u5bf9\u8c61\u4f1a\u81ea\u52a8\u88ab\u89c6\u4e3a\u77ac\u6001\u5bf9\u8c61\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u4eec\u7684\u503c\u4e0d\u4f1a \u4fdd\u5b58\u4e3a\u9875\u9762\u89c6\u56fe\u72b6\u6001\u7684\u4e00\u90e8\u5206\u3002\u8fd9\u4e9b\u5bf9\u8c61\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9875\u9762\u5f15\u7528<\/li>\n\n\n\n<li>XmlStream \u7c7b<\/li>\n\n\n\n<li>\u96c6\u5408\u81ea\u52a8\u6807\u8bb0\u4e3a\u6682\u65f6\u6027\uff0c\u4ec5\u5f53\u5b83\u4eec\u7684\u5bf9\u8c61\u7c7b\u578b \u4fdd\u7559\u4f1a\u81ea\u52a8\u6807\u8bb0\u4e3a\u6682\u65f6\u6027\u4fdd\u7559\uff0c\u4f8b\u5982\u4fdd\u5b58\u70b9\u7684\u96c6\u5408<\/li>\n\n\n\n<li>\u5927\u591a\u6570\u5bf9\u8c61\u7531\u7cfb\u7edf\u65b9\u6cd5\u751f\u6210\uff0c\u4f8b\u5982 .<samp>Schema.getGlobalDescribe<\/samp><\/li>\n\n\n\n<li><samp>JSONParser<\/samp>\u7c7b\u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9759\u6001\u53d8\u91cf\u4e5f\u4e0d\u4f1a\u5f97\u5230 \u901a\u8fc7\u89c6\u56fe\u72b6\u6001\u4f20\u8f93\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5305\u542b\u4e00\u4e2a Visualforce \u9875\u9762\u548c\u4e00\u4e2a\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u3002\u70b9\u51fb \u9875\u9762\u4e0a\u7684\u201c<strong>\u5237\u65b0<\/strong>\u201d\u6309\u94ae\u4f7f\u77ac\u6001\u65e5\u671f\u4e3a \u5df2\u66f4\u65b0\uff0c\u56e0\u4e3a\u6bcf\u6b21\u5237\u65b0\u9875\u9762\u65f6\u90fd\u4f1a\u91cd\u65b0\u521b\u5efa\u5b83\u3002\u975e\u77ac\u6001 date \u7ee7\u7eed\u5177\u6709\u5176\u539f\u59cb\u503c\uff0c\u8be5\u503c\u5df2\u4ece\u89c6\u56fe\u4e2d\u53cd\u5e8f\u5217\u5316 \u72b6\u6001\uff0c\u6240\u4ee5\u5b83\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"ExampleController\"&gt;\n  T1: {!t1} &lt;br\/&gt;\n  T2: {!t2} &lt;br\/&gt;\n  &lt;apex:form&gt;\n    &lt;apex:commandLink value=\"refresh\"\/&gt;\n  &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>public class ExampleController {\n\n    DateTime t1;\n    transient DateTime t2;\n\n    public String getT1() {\n        if (t1 == null) t1 = System.now();\n        return '' + t1;\n    }\n\n    public String getT2() {\n        if (t2 == null) t2 = System.now();\n        return '' + t2;\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6807\u51c6\u63a7\u5236\u5668\u53ef\u4ee5\u63d0\u4f9b Visualforce \u9875\u9762\u6240\u9700\u7684\u6240\u6709\u529f\u80fd \u56e0\u4e3a\u5b83\u4eec\u5305\u542b\u7528\u4e8e\u6807\u51c6\u9875\u9762\u7684\u76f8\u540c\u903b\u8f91\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60 \u4f7f\u7528\u6807\u51c6\u5e10\u6237\u63a7\u5236\u5668\uff0c\u5355\u51fb\u00a0Visualforce \u9875\u9762\u4ea7\u751f\u7684\u884c\u4e3a\u4e0e\u5728\u00a0\u6807\u51c6\u5e10\u6237\u7f16\u8f91\u9875\u9762\u3002\u4f46\u662f\uff0c\u5982\u679c\u8981\u8986\u76d6\u73b0\u6709\u529f\u80fd\uff0c\u8bf7\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u81ea\u5b9a\u4e49\u5bfc\u822a \u5e94\u7528\u7a0b\u5e8f\uff0c\u4f7f\u7528\u6807\u6ce8\u6216 Web 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