{"id":4121,"date":"2024-02-25T16:14:19","date_gmt":"2024-02-25T08:14:19","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=4121"},"modified":"2023-12-05T18:10:15","modified_gmt":"2023-12-05T10:10:15","slug":"%e4%bd%bf%e7%94%a8-visualforce-%e8%bf%9b%e8%a1%8c%e6%a8%a1%e6%9d%bf%e5%88%b6%e4%bd%9c","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=4121","title":{"rendered":"\u4f7f\u7528 Visualforce \u8fdb\u884c\u6a21\u677f\u5236\u4f5c"},"content":{"rendered":"\n<p>Visualforce \u63d0\u4f9b\u4e86\u591a\u79cd\u7b56\u7565\uff0c\u7528\u4e8e\u5728 \u591a\u4e2a Visualforce \u9875\u9762\u3002\u60a8\u9009\u62e9\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u60a8\u9700\u8981\u7684\u7075\u6d3b\u6027 \u91cd\u7528\u6a21\u677f\u3002\u6a21\u677f\u65b9\u6cd5\u8d8a\u7075\u6d3b\uff0c \u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4fee\u6539\u4f7f\u7528\u8be5\u65b9\u6cd5\u7684\u4efb\u4f55\u6a21\u677f\u5b9e\u73b0\u3002 \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u677f\u65b9\u6cd5\uff0c\u6309\u5927\u591a\u6570\u987a\u5e8f\u6392\u5217 \u6700\u4e0d\u7075\u6d3b\uff1a\u5b9a\u4e49\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7c7b\u4f3c\u4e8e\u5c01\u88c5\u4e00\u4ef6\u4f5c\u54c1\u7684\u65b9\u5f0f \u4ee3\u7801\uff0c\u7136\u540e\u5728 \u7a0b\u5e8f\u4e2d\uff0c\u60a8\u53ef\u4ee5\u5c06\u901a\u7528\u8bbe\u8ba1\u6a21\u5f0f\u5c01\u88c5\u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d \uff0c\u7136\u540e\u5728\u4e00\u4e2a\u6216\u591a\u4e2a Visualforce \u9875\u9762\u4e2d\u591a\u6b21\u91cd\u590d\u4f7f\u7528\u8be5\u7ec4\u4ef6\u3002\u5b9a\u4e49\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u662f\u6700\u7075\u6d3b\u7684\u6a21\u677f \u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u5305\u542b\u4efb\u4f55\u6709\u6548\u7684 Visualforce \u6807\u7b7e\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0d\u53d7\u9650\u5236\u5730\u5bfc\u5165\u5230\u4efb\u4f55 Visualforce \u9875\u9762\u4e2d\u3002\u4f46\u662f\uff0c\u4e0d\u5e94\u4f7f\u7528\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u6765\u5b9a\u4e49\u53ef\u91cd\u7528\u7684 Visualforce \u9875\u9762\u3002\u5982\u679c\u8981\u91cd\u590d\u4f7f\u7528\u6574\u4e2a Visualforce \u9875\u9762\u7684\u5185\u5bb9\uff0c\u8bf7\u9009\u62e9\u5176\u4ed6\u4e24\u79cd\u6a21\u677f\u65b9\u6cd5\u4e4b\u4e00\u3002\u4f7f\u7528\u00a0<samp>&lt;apex\uff1acomposition><\/samp>\u00a0\u5b9a\u4e49\u6a21\u677f\u5982\u679c\u8981\u5b9a\u4e49\u4e00\u4e2a\u57fa\u672c\u6a21\u677f\uff0c\u8be5\u6a21\u677f\u5141\u8bb8 \u8981\u968f\u6bcf\u4e2a\u5b9e\u73b0\u800c\u66f4\u6539\u7684\u6a21\u677f\uff0c\u8bf7\u4f7f\u7528\u7ec4\u4ef6\u3002 \u6b64\u6a21\u677f\u65b9\u6cd5\u6700\u9002\u5408\u9700\u8981\u7ef4\u62a4\u7684\u60c5\u51b5 \u4e00\u4e2a\u9875\u9762\u7684\u6574\u4f53\u7ed3\u6784\uff0c\u4f46\u9700\u8981\u5355\u4e2a\u5185\u5bb9 \u9875\u9762\u8981\u4e0d\u540c\uff0c\u6bd4\u5982\u4e00\u4e2a\u7f51\u7ad9\u7684\u65b0\u95fb\u6587\u7ae0\u4e0d\u540c \u6587\u7ae0\u5e94\u4ee5\u76f8\u540c\u7684\u9875\u9762\u5e03\u5c40\u663e\u793a\u3002<samp>&lt;apex:composition><\/samp>\u901a\u8fc7\u8fd9\u79cd\u6280\u672f\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4ece \u63a7\u5236\u5668\u8fd4\u56de\u7684 PageReference\u3002\u4f7f\u7528\u00a0<samp>&lt;apex\uff1ainclude><\/samp>\u00a0\u5f15\u7528\u73b0\u6709\u9875\u9762\u5982\u679c\u8981\u5c06 Visualforce \u9875\u9762\u7684\u5168\u90e8\u5185\u5bb9\u63d2\u5165\u5230\u53e6\u4e00\u4e2a\u9875\u9762\u4e2d\uff0c\u8bf7\u4f7f\u7528\u8be5\u7ec4\u4ef6\u3002\u8fd9 \u6a21\u677f\u65b9\u6cd5\u6700\u9002\u5408\u60f3\u8981\u590d\u5236\u7684\u60c5\u51b5 \u591a\u4e2a\u533a\u57df\u4e2d\u7684\u76f8\u540c\u5185\u5bb9\uff0c\u4f8b\u5982\u663e\u793a\u7684\u53cd\u9988\u8868\u5355 \u5728\u7f51\u7ad9\u7684\u6bcf\u4e2a\u9875\u9762\u4e0a\u3002<samp>&lt;apex:include><\/samp><\/p>\n\n\n\n<p>\u4ec5\u5f53\u60a8\u60f3\u8981\u5f15\u7528\u5df2\u5b58\u5728\u7684 Visualforce \u9875\u9762\u65f6\uff0c\u624d\u5e94\u4f7f\u7528\u4f7f\u7528\u6a21\u677f\u3002\u5982\u679c\u53ea\u9700\u8981\u590d\u5236\u4e00\u7ec4\u7ec4\u4ef6\uff0c \u4f7f\u7528\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u3002<samp>&lt;apex:insert&gt;<\/samp><samp>&lt;apex:composition&gt;<\/samp><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u4f7f\u7528&nbsp;&lt;apex\uff1acomposition&gt;&nbsp;\u5b9a\u4e49\u6a21\u677f<\/h1>\n\n\n\n<p>\u4f7f\u7528\u5b9a\u4e49\u7684\u6240\u6709\u6a21\u677f\u90fd\u5fc5\u987b\u5177\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u5b50\u6807\u8bb0\u3002\u6807\u8bb0\u6307\u793a\u5bfc\u5165\u6a21\u677f\u7684\u9875\u9762\uff0c\u8be5\u90e8\u5206\u9700\u8981 \u4e00\u4e2a\u5b9a\u4e49\u3002\u4efb\u4f55\u5bfc\u5165\u6a21\u677f\u7684 Visualforce \u9875\u9762\u90fd\u5fc5\u987b\u7528\u4e8e\u6307\u5b9a\u6a21\u677f\u6bcf\u4e2a\u90e8\u5206\u7684\u5185\u5bb9\u3002<samp>&lt;apex:composition&gt;<\/samp><samp>&lt;apex:insert&gt;<\/samp><samp>&lt;apex:insert&gt;<\/samp><samp>&lt;apex:composition&gt;<\/samp><samp>&lt;apex:define&gt;<\/samp><samp>&lt;apex:insert&gt;<\/samp><\/p>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u6846\u67b6\u6a21\u677f\uff0c\u8be5\u6a21\u677f\u5141\u8bb8\u540e\u7eed Visualforce \u9875\u9762\u5728\u540c\u4e00\u6807\u51c6\u7ed3\u6784\u4e2d\u5b9e\u73b0\u4e0d\u540c\u7684\u5185\u5bb9\u3002 \u4e3a\u6b64\uff0c\u8bf7\u4f7f\u7528\u8be5\u6807\u8bb0\u521b\u5efa\u6a21\u677f\u9875\u9762\u3002<samp>&lt;apex:composition&gt;<\/samp><\/p>\n\n\n\n<p>\u4e0b\u9762\u7684\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u4f7f\u7528 \u3001 \u548c \u5b9e\u73b0\u6846\u67b6 \u6a21\u677f\u3002<samp>&lt;apex:composition&gt;<\/samp><samp>&lt;apex:insert&gt;<\/samp><samp>&lt;apex:define&gt;<\/samp>\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u7684\u7a7a\u9875\u9762\uff0c\u8be5\u9875\u9762\u4f7f\u7528\u540d\u4e3a<\/p>\n\n\n\n<p><var>myFormComposition<\/var><samp>compositionExample<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"compositionExample\"&gt;\n\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u4fdd\u5b58\u9875\u9762\u540e\uff0c\u4f1a\u51fa\u73b0\u4e00\u4e2a\u63d0\u793a\uff0c\u8981\u6c42\u60a8\u521b\u5efa .\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4 \u7528\u4e8e\u5b9a\u4e49\u8be5\u81ea\u5b9a\u4e49\u63a7\u5236\u5668\u7684\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p><samp>compositionExample<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class compositionExample{\n\n    String name;\n    Integer age;\n    String meal;\n    String color;\n    \n    Boolean showGreeting = false;\n    \n    public PageReference save() {\n        showGreeting = true;\n        return null;\n    }\n    \n    public void setNameField(String nameField) {\n        name = nameField;\n    }\n    \n    public String getNameField() {\n        return name;\n    }\n    \n    public void setAgeField(Integer ageField) {\n        age= ageField;\n    }\n    \n    public Integer getAgeField() {\n        return age;\n    }\n    \n    public void setMealField(String mealField) {\n        meal= mealField;\n    }\n    \n    public String getMealField() {\n        return meal;\n    }   \n         \n    public void setColorField(String colorField) {\n        color = colorField;\n    }\n    \n    public String getColorField() {\n        return color;\n    }       \n    \n    public Boolean getShowGreeting() {\n        return showGreeting;\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u8fd4\u56de\u5e76\u521b\u5efa\u9aa8\u67b6\u6a21\u677f\uff1a<\/p>\n\n\n\n<p><samp>myFormComposition<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"compositionExample\"&gt;\n    &lt;apex:form &gt;\n        &lt;apex:outputLabel value=\"Enter your name: \" for=\"nameField\"\/&gt;\n        &lt;apex:inputText id=\"nameField\" value=\"{!nameField}\"\/&gt;\n        &lt;br \/&gt;\n        &lt;apex:insert name=\"age\" \/&gt;\n        &lt;br \/&gt;\n        &lt;apex:insert name=\"meal\" \/&gt;\n        &lt;br \/&gt;      \n        &lt;p&gt;That's everything, right?&lt;\/p&gt;\n        &lt;apex:commandButton action=\"{!save}\" value=\"Save\" id=\"saveButton\"\/&gt;\n    &lt;\/apex:form&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u8bf7\u6ce8\u610f\uff0c\u4e24\u4e2a\u5b57\u6bb5\u9700\u8981 \u548c\u5185\u5bb9\u3002\u8fd9 \u8fd9\u4e9b\u5b57\u6bb5\u7684\u6807\u8bb0\u662f\u5728\u8c03\u7528\u6b64\u5408\u6210\u7684\u9875\u9762\u4e2d\u5b9a\u4e49\u7684 \u6a21\u677f\u3002<\/p>\n\n\n\n<p><samp>&lt;apex:insert&gt;<\/samp><var>age<\/var><var>meal<\/var>\u63a5\u4e0b\u6765\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u7684\u9875\u9762\uff0c\u8be5\u9875\u9762 \u5b9a\u4e49 \u4e2d\u7684\u6807\u7b7e\uff1a<\/p>\n\n\n\n<p><var>myFullForm<\/var><samp>&lt;apex:insert&gt;<\/samp><samp>myFormComposition<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"compositionExample\"&gt;\n    &lt;apex:messages\/&gt;\n    &lt;apex:composition template=\"myFormComposition\"&gt;\n    \n    &lt;apex:define name=\"meal\"&gt;\n        &lt;apex:outputLabel value=\"Enter your favorite meal: \" for=\"mealField\"\/&gt;\n        &lt;apex:inputText id=\"mealField\" value=\"{!mealField}\"\/&gt;\n    &lt;\/apex:define&gt;\n\n    &lt;apex:define name=\"age\"&gt;\n        &lt;apex:outputLabel value=\"Enter your age: \" for=\"ageField\"\/&gt;\n        &lt;apex:inputText id=\"ageField\" value=\"{!ageField}\"\/&gt;\n    &lt;\/apex:define&gt;\n    \n   &lt;apex:outputLabel value=\"Enter your favorite color: \" for=\"colorField\"\/&gt;\n   &lt;apex:inputText id=\"colorField\" value=\"{!colorField}\"\/&gt;\n    \n    &lt;\/apex:composition&gt;\n    \n    &lt;apex:outputText id=\"greeting\" rendered=\"{!showGreeting}\" value=\"Hello {!nameField}. \n    You look {!ageField} years old. Would you like some {!colorField} {!mealField}?\"\/&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u8bf7\u6ce8\u610f\u6709\u5173\u6807\u8bb0\u7684\u4ee5\u4e0b\u4fe1\u606f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fdd\u5b58\u65f6\uff0c\u5c06\u663e\u793a\u5148\u524d\u5b9a\u4e49\u7684\u6807\u8bb0\u548c<strong>\u4fdd\u5b58<\/strong>\u6309\u94ae\u3002<var>myFullForm<\/var><samp>&lt;apex:inputText&gt;<\/samp><\/li>\n\n\n\n<li>\u7531\u4e8e\u7ec4\u5408\u9875\u9762\u9700\u8981 \u548c \u5b57\u6bb5\uff0c\u56e0\u6b64\u5b9a\u4e49\u5b83\u4eec \u4f5c\u4e3a\u6587\u672c\u8f93\u5165\u5b57\u6bb5\u3002\u5b83\u4eec\u5728\u9875\u9762\u4e0a\u7684\u663e\u793a\u987a\u5e8f\u786e\u5b9e\u5982\u6b64 \u6ca1\u5173\u7cfb; \u6307\u5b9a\u8be5\u5b57\u6bb5\u59cb\u7ec8\u663e\u793a\u5728\u8be5\u5b57\u6bb5\u4e4b\u524d\u3002<var>age<\/var><var>meal<\/var><var>myFullForm<\/var><var>myFormComposition<\/var><var>age<\/var><var>meal<\/var><\/li>\n\n\n\n<li>\u5373\u4f7f\u6ca1\u6709\uff0c\u8be5\u5b57\u6bb5\u4ecd\u4f1a\u5bfc\u5165 \u5339\u914d\u5b57\u6bb5\u3002<var>name<\/var><samp>&lt;apex:define&gt;<\/samp><\/li>\n\n\n\n<li>\u5373\u4f7f\u8be5\u5b57\u6bb5\u88ab\u5ffd\u7565\uff0c\u5373\u4f7f \u8be5\u5b57\u6bb5\u5b58\u5728\u63a7\u5236\u5668\u4ee3\u7801\u3002\u8fd9\u662f\u56e0\u4e3a\u6210\u5206 \u6a21\u677f\u4e0d\u9700\u8981\u4efb\u4f55\u540d\u4e3a \u7684\u5b57\u6bb5\u3002<var>color<\/var><var>color<\/var><\/li>\n\n\n\n<li>\u548c\u5b57\u6bb5 \u4e0d\u9700\u8981\u662f\u6587\u672c\u8f93\u5165\u3002\u6807\u8bb0\u4e2d\u7684\u7ec4\u4ef6\u53ef\u4ee5\u662f\u4efb\u4f55\u6709\u6548\u7684 Visualforce \u6807\u8bb0\u3002<var>age<\/var><var>meal<\/var><samp>&lt;apex:define&gt;<\/samp><\/li>\n<\/ul>\n\n\n\n<p>\u8981\u5c55\u793a\u5982\u4f55\u5728\u6807\u7b7e\u4e2d\u4f7f\u7528\u4efb\u4f55\u6709\u6548\u7684 Visualforce\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a \u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Visualforce \u9875\u9762\uff0c\u8be5\u9875\u9762\u540d\u4e3a \u5e76\u4f7f\u7528\u4ee5\u4e0b\u6807\u8bb0\uff1a<\/p>\n\n\n\n<p><samp>&lt;apex:define&gt;<\/samp><samp>myAgelessForm<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"compositionExample\"&gt;\n    &lt;apex:messages\/&gt;\n    &lt;apex:composition template=\"myFormComposition\"&gt;\n    \n    &lt;apex:define name=\"meal\"&gt;\n        &lt;apex:outputLabel value=\"Enter your favorite meal: \" for=\"mealField\"\/&gt;\n        &lt;apex:inputText id=\"mealField\" value=\"{!mealField}\"\/&gt;\n    &lt;\/apex:define&gt;\n\n    &lt;apex:define name=\"age\"&gt;\n        &lt;p&gt;You look great for your age!&lt;\/p&gt;\n    &lt;\/apex:define&gt;\n\n    &lt;\/apex:composition&gt;\n    \n    &lt;apex:outputText id=\"greeting\" rendered=\"{!showGreeting}\" value=\"Hello {!nameField}. \n    Would you like some delicious {!mealField}?\"\/&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u8bf7\u6ce8\u610f\uff0c\u53ea\u6709\u5408\u6210\u6a21\u677f \u9700\u8981\u6807\u8bb0\u624d\u80fd\u5b58\u5728\u3002\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5b9a\u4e49 \u4f5c\u4e3a\u6587\u672c\u3002<\/p>\n\n\n\n<p><samp>&lt;apex:define&gt;<\/samp><var>age<\/var><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a><\/a>\u52a8\u6001\u6a21\u677f<\/h2>\n\n\n\n<p>\u52a8\u6001\u6a21\u677f\u5141\u8bb8\u60a8\u901a\u8fc7 PageReference \u5206\u914d\u6a21\u677f\u3002 \u6a21\u677f\u540d\u79f0\u5206\u914d\u7ed9\u8fd4\u56de\u7684\u63a7\u5236\u5668\u65b9\u6cd5 \u5305\u542b\u8981\u4f7f\u7528\u7684\u6a21\u677f\u7684 PageReference\u3002\u4e3a \u793a\u4f8b\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u201c\u5b9a\u4e49\u6846\u67b6\u6a21\u677f\u201d\u7684\u9875\u9762\uff1a<\/p>\n\n\n\n<p><var>myAppliedTemplate<\/var><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page&gt;\n    &lt;apex:insert name=\"name\" \/&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u5c06\u8fd4\u56de\u5bf9\u6b64\u9875\u9762\u7684\u5f15\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<p><samp><a><\/a>dynamicComposition<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class dynamicComposition {\n    public PageReference getmyTemplate() {\n        return Page.myAppliedTemplate;\n    }\n}<\/code><\/pre>\n\n\n\n<p>\u6700\u540e\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u5b9e\u73b0 \u6b64\u63a7\u5236\u5668\u548c\u52a8\u6001\u6a21\u677f\uff1a<\/p>\n\n\n\n<p><samp>myDynamicComposition<\/samp><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;apex:page controller=\"dynamicComposition\"&gt;\n    &lt;apex:composition template=\"{!myTemplate}\"&gt;\n    &lt;apex:define name=\"name\"&gt;\n        Hello {!$User.FirstName}, you look quite well.\n    &lt;\/apex:define&gt;\n    &lt;\/apex:composition&gt;\n&lt;\/apex:page&gt;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Visualforce \u63d0\u4f9b\u4e86\u591a\u79cd\u7b56\u7565\uff0c\u7528\u4e8e\u5728 \u591a\u4e2a Visualforce \u9875\u9762\u3002\u60a8\u9009\u62e9\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u60a8\u9700\u8981\u7684\u7075\u6d3b\u6027 \u91cd\u7528\u6a21\u677f\u3002\u6a21\u677f\u65b9\u6cd5\u8d8a\u7075\u6d3b\uff0c \u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4fee\u6539\u4f7f\u7528\u8be5\u65b9\u6cd5\u7684\u4efb\u4f55\u6a21\u677f\u5b9e\u73b0\u3002 \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6a21\u677f\u65b9\u6cd5\uff0c\u6309\u5927\u591a\u6570\u987a\u5e8f\u6392\u5217 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