{"id":3233,"date":"2021-01-12T23:07:57","date_gmt":"2021-01-12T15:07:57","guid":{"rendered":"http:\/\/www.salesforcecrm.cn\/?p=3233"},"modified":"2021-01-12T23:07:57","modified_gmt":"2021-01-12T15:07:57","slug":"%e9%97%aa%e7%94%b5web%e7%bb%84%e4%bb%b6%e5%92%8csalesforce%e6%95%b0%e6%8d%ae-%e4%bd%bf%e7%94%a8apex%e5%a4%84%e7%90%86%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3233","title":{"rendered":"\u95ea\u7535Web\u7ec4\u4ef6\u548cSalesforce\u6570\u636e &#8211; \u4f7f\u7528Apex\u5904\u7406\u6570\u636e"},"content":{"rendered":"<h2 id=\"learning-objectives-nbsp\"><span>\u5b66\u4e60\u76ee\u6807<\/span><\/h2>\n<p><span>\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/span><\/p>\n<ul>\n<li><span>\u8bc6\u522b\u4f55\u65f6\u9700\u8981\u4f7f\u7528Apex\u5904\u7406Salesforce\u6570\u636e\u3002<\/span><\/li>\n<li><span>\u7528\u4e24\u79cd\u4e0d\u540c\u7684\u65b9\u5f0f\u547c\u53ebApex\u3002<\/span><\/li>\n<li><span>\u4f7f\u7528Apex\u548clightning-datatable\u5904\u7406\u8bb0\u5f55\u5217\u8868\u3002<\/span><\/li>\n<\/ul>\n<h2 id=\"apex-in-lightning-web-components\"><span>\u95ea\u7535Web\u7ec4\u4ef6\u4e2d\u7684Apex<\/span><\/h2>\n<p><span>\u6211\u4eec\u5df2\u7ecf\u4ecb\u7ecd\u4e86Lightning Data Service\u7684\u597d\u5904\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\uff0c\u4f46\u662f\u6709\u65f6\uff0c<\/span><code>lightning-record-*-form<\/code><span>\u7ec4\u4ef6\u6216LDS\u7ebf\u9002\u914d\u5668\u548c\u529f\u80fd\u90fd\u4e0d\u9002\u5408\u7279\u5b9a\u7684\u7528\u4f8b\u3002\u4f8b\u5982\uff0c\u5f53\u60a8\u8981\u81ea\u5b9a\u4e49\u5355\u8bb0\u5f55\u6570\u636e\u4e8b\u52a1\u6216\u5bf9\u5355\u4e2a\u4e8b\u52a1\u6267\u884c\u591a\u8bb0\u5f55\u64cd\u4f5c\u65f6\uff0cApex\u662f\u6700\u4f73\u9009\u62e9\u3002<\/span><\/p>\n<h3 id=\"use-apex-methods-with-lightning-web-components\"><span>\u5c06Apex\u65b9\u6cd5\u4e0eLightning Web Components\u4e00\u8d77\u4f7f\u7528<\/span><\/h3>\n<p><span>\u5728\u95ea\u7535\u7f51\u7edc\u7ec4\u4ef6\u4f7f\u7528\u7684\u9876\u70b9\u65b9\u6cd5\u5fc5\u987b\u662f<\/span><code>static<\/code><span>\uff0c\u00a0<\/span><code>public<\/code><span>\u6216\u8005<\/span><code>global<\/code><span>\uff0c\u5e76\u7528\u6ce8\u91ca\u00a0<\/span><code>@AuraEnabled<\/code><span>\u7acb\u5373\u65b9\u6cd5\u5b9a\u4e49\u4e4b\u524d\u3002\u8be5\u00a0<\/span><code>@AuraEnabled<\/code><span>\u6ce8\u91ca\u4f7f\u5176\u53ef\u95ea\u7535\u90e8\u4ef6\uff08\u4e24\u4e2a\u95ea\u7535Web\u7ec4\u4ef6\u548cAura\u7ec4\u4ef6\uff09\u7684\u9876\u70b9\u65b9\u6cd5\u3002<\/span><\/p>\n<p><span>\u5141\u8bb8\u6846\u67b6\u7f13\u5b58\u6570\u636e\u53ef\u6d88\u9664\u91cd\u590d\u7684\u670d\u52a1\u5668\u8c03\u7528\uff0c\u4ece\u800c\u4f7f\u4ee5\u540e\u7684\u8bfb\u53d6\u64cd\u4f5c\u8fd0\u884c\u66f4\u5feb\u3002\u901a\u8fc7<\/span><code>cacheable = true<\/code><span>\u5728<\/span><code>@AuraEnabled<\/code><span>\u6279\u6ce8\u4e2d\u8fdb\u884c\u8bbe\u7f6e\uff0c\u6211\u4eec\u5c06\u65b9\u6cd5\u6807\u8bb0\u4e3a\u53ef\u7f13\u5b58\u00a0\u3002\u5f53<\/span><code>@AuraEnabled<\/code><span>\u65b9\u6cd5\u662f\u53ef\u7f13\u5b58\u7684\u65f6\uff0c\u4e0d\u5141\u8bb8\u8fdb\u884c\u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff08DML\uff09\u64cd\u4f5c\u3002\u5728\u6b64\u793a\u4f8b\u7684\u7b2c2\u884c\u4e2d\uff0c\u6211\u4eec\u4f7f<\/span><code>getRelatedContacts<\/code><span>\u65b9\u6cd5\u53ef\u7f13\u5b58\u3002<\/span><\/p>\n<p><strong><span>AccountController.cls<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">with<\/span> <span class=\"token namespace\">sharing<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AccountController<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token annotation punctuation\">@AuraEnabled<\/span><span class=\"token punctuation\">(<\/span>cacheable<span class=\"token operator\">=<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Contact<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">getRelatedContacts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Id<\/span> accountId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">[<\/span>\n            SELECT <span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Title<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Email<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Phone<\/span>\n            FROM <span class=\"token class-name\">Contact<\/span>\n            WHERE <span class=\"token class-name\">AccountId<\/span> <span class=\"token operator\">=<\/span> <span class=\"token operator\">:<\/span>accountId\n            WITH SECURITY_ENFORCED\n       <span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u5f53\u65b9\u6cd5\u662f\u53ef\u7f13\u5b58\u7684\u65f6\uff0c\u76f4\u5230\u5237\u65b0\u7f13\u5b58\u540e\uff0c\u624d\u4f1a\u8fd4\u56de\u65b0\u6dfb\u52a0\u6216\u66f4\u6539\u7684\u8bb0\u5f55\u7248\u672c\u3002\u5728\u4e0b\u4e00\u8282\u4e2d\u4e86\u89e3\u5982\u4f55\u624b\u52a8\u5237\u65b0\u7f13\u5b58\u3002<\/span><\/p>\n<h3 id=\"call-apex-methods-from-lwc\"><span>\u4eceLWC\u8c03\u7528Apex\u65b9\u6cd5<\/span><\/h3>\n<p><span>\u4e0eLightning Web\u7ec4\u4ef6\u4e2d\u7684Apex\u65b9\u6cd5\u8fdb\u884c\u4ea4\u4e92\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u8fde\u63a5\u65b9\u6cd5\u6216\u5f3a\u5236\u8c03\u7528\u65b9\u6cd5\u3002\u8ba9\u6211\u4eec\u8003\u8651\u4e24\u79cd\u65b9\u6cd5\u3002<\/span><\/p>\n<h4 id=\"call-apex-using-wire\"><span>\u4f7f\u7528@wire\u81f4\u7535Apex<\/span><\/h4>\n<p><span>\u8981\u8fde\u63a5Apex\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5fc5\u987b\u662f\u53ef\u7f13\u5b58\u7684\u3002\u8981\u8fde\u7ebf\u53ef\u7f13\u5b58\u7684Apex\u65b9\u6cd5\uff0c\u8bf7\u4f7f\u7528<\/span><code>@wire<\/code><span>\u88c5\u9970\u5668\uff08\u4e0e\u4f7f\u7528LDS\u8fde\u7ebf\u9002\u914d\u5668\u7684\u65b9\u5f0f\u76f8\u540c\uff09\u3002\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u8c03\u7528Apex\u4f1a\u5c06\u63a7\u4ef6\u59d4\u6d3e\u7ed9Lightning Web Components\u5f15\u64ce\u5e76\u521b\u5efa\u54cd\u5e94\u5f0f\u670d\u52a1\u3002\u6bcf\u6b21\u4f20\u9012\u7ed9Apex\u65b9\u6cd5\u7684\u53c2\u6570\u503c\u66f4\u6539\u65f6\uff0cApex\u65b9\u6cd5\u90fd\u4f1a\u5c06\u65b0\u503c\u63d0\u4f9b\u7ed9\u4fee\u9970\u7684\u5c5e\u6027\u6216\u51fd\u6570\u3002\u7531\u4e8e\u6709\u7ebf\u65b9\u6cd5\u5fc5\u987b\u662f\u53ef\u7f13\u5b58\u7684\uff0c\u56e0\u6b64\u6570\u636e\u53ef\u4ee5\u6765\u81eaLDS\u7f13\u5b58\u6216\u670d\u52a1\u5668\u3002\u8981\u5237\u65b0Apex\u65b9\u6cd5\u7f13\u5b58\u7684\u6570\u636e\uff0c\u8bf7\u8c03\u7528\u00a0<\/span><span>refreshApex<\/span><span>\u00a0\u51fd\u6570\u3002<\/span><\/p>\n<p><strong><span>\u6ce8\u610f\uff1a<\/span><\/strong><span>\u00a0Lightning Data Service\u65e0\u6cd5\u8bc6\u522bApex\u65b9\u6cd5\u7f13\u5b58\u7684\u6570\u636e\u3002\u5f53LDS\u51fd\u6570\u66f4\u65b0\u8bb0\u5f55\u65f6\uff0c\u8be5\u66f4\u65b0\u5bf9Apex\u65b9\u6cd5\u7f13\u5b58\u7684\u6570\u636e\u6ca1\u6709\u5f71\u54cd\u3002<\/span><\/p>\n<p><span>\u8fd9\u662f<\/span><code>@wire<\/code><span>\u7528\u4e8e\u8c03\u7528Apex\u7684\u793a\u4f8b\u3002\u6b64\u4ee3\u7801\u83b7\u53d6\u5e10\u6237\u7684\u76f8\u5173\u8054\u7cfb\u4eba\u3002<\/span><\/p>\n<p><strong><span>wireApexProperty.js<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api<span class=\"token punctuation\">,<\/span> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getRelatedContacts<\/span> from <span class=\"token string\">'@salesforce\/apex\/AccountController.getRelatedContacts'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">WireApexProperty<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token annotation punctuation\">@api<\/span> recordId<span class=\"token punctuation\">;<\/span>\n    <span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>getRelatedContacts<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> accountId<span class=\"token operator\">:<\/span> <span class=\"token string\">'$recordId'<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n    contacts<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u7b2c2\u884c\uff1a\u6211\u4eec<\/span><code>getRelatedContacts<\/code><span>\u4ece<\/span><code>AccountController<\/code><span>Apex\u7c7b\u5bfc\u5165\u51fd\u6570\u00a0\u3002\u8fd9\u6307\u5411\u76f8\u5e94\u7684Apex\u65b9\u6cd5\u3002<\/span><\/li>\n<li><span>\u7b2c4\u884c\uff1a\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a<\/span><code>@api recordId<\/code><span>\u5c5e\u6027\uff0c\u4ee5\u4fbfFlexiPage\u5c06\u5f53\u524d\u8bb0\u5f55\u7684ID\u4f20\u9012\u7ed9\u7ec4\u4ef6\u3002<\/span><\/li>\n<li><span>\u7b2c5\u884c\uff1a<\/span><code>@wire<\/code><span>\u88c5\u9970\u5668\u6536\u5230\u4e24\u4e2a\u53c2\u6570\uff1a\u6211\u4eec\u8981\u8c03\u7528\u7684Apex\u65b9\u6cd5\uff08<\/span><code>getRelatedContacts<\/code><span>\uff09\u548c\u9002\u914d\u5668\u9700\u8981\u7684\u53c2\u6570\uff08<\/span><code>accountId<\/code><span>\uff09\u3002\u6211\u4eec\u5c06\u5176<\/span><code>$recordId<\/code><span>\u4f5c\u4e3a\u53cd\u5e94\u53d8\u91cf\u4f20\u9012\u00a0\uff08\u4ee5\u5f00\u5934\u00a0<\/span><code>$<\/code><span>\uff09\u3002<\/span><\/li>\n<li><span>\u7b2c6\u884c\uff1a\u7ed3\u679c\u5b58\u50a8\u5728<\/span><code>contacts<\/code><span>\u5c5e\u6027\u4e2d\u3002<\/span><\/li>\n<li><span>\u7b2c5\u81f36\u884c\uff1a\u6700\u521d\uff0cApex\u65b9\u6cd5\u5c06\u6570\u636e\u7f6e\u5907\u7ed9\u00a0<\/span><code>contacts<\/code><span>\u5c5e\u6027\uff0c\u5e76\u5c06\u8be5\u6570\u636e\u5b58\u50a8\u5728LDS\u7f13\u5b58\u4e2d\u3002\u7531\u4e8e<\/span><code>$recordId<\/code><span>\u662f\u53cd\u5e94\u578b\u7684\uff0c\u56e0\u6b64\u6bcf\u6b21\u5176\u503c\u66f4\u6539\u65f6\uff0cApex\u65b9\u6cd5\u90fd\u4f1a\u4ece\u7f13\u5b58\u6216\u670d\u52a1\u5668\u4e2d\u914d\u7f6e\u65b0\u6570\u636e\u3002<\/span><\/li>\n<\/ul>\n<h4 id=\"call-apex-imperatively\"><span>\u7d27\u6025\u547c\u53ebApex<\/span><\/h4>\n<p><span>\u8c03\u7528Apex\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5<\/span><code>@wire<\/code><span>\u662f\u5f3a\u5236\u6027\u5730\u8c03\u7528Apex\u3002\u5f53\u60a8\u9700\u8981\u63a7\u5236\u8bfb\u53d6\u64cd\u4f5c\u7684\u8c03\u7528\u4ee5\u53ca\u4fee\u6539\u8bb0\u5f55\u65f6\uff0c\u5fc5\u987b\u5f3a\u5236\u8c03\u7528Apex\u3002\u8981\u5f3a\u5236\u8c03\u7528Apex\uff0c\u8bf7\u4e00\u6b21\u4ece\u7ec4\u4ef6\u7684JavaScript\u6587\u4ef6\u4e2d\u8c03\u7528Apex\uff0c\u800c\u4e0d\u662f\u5c06\u63a7\u4ef6\u59d4\u6d3e\u7ed9Lightning Web Components\u5f15\u64ce\u3002\u4f5c\u4e3a\u56de\u62a5\uff0c\u60a8\u5c06\u83b7\u5f97JavaScript\u627f\u8bfa\uff08\u5c31\u50cf\u60a8\u5fc5\u987b\u5f3a\u5236\u8c03\u7528LDS\u51fd\u6570\u65f6\u6240\u505a\u7684\u90a3\u6837\uff09\u3002<\/span><\/p>\n<p><span>\u60a8\u53ef\u4ee5\u5f3a\u5236\u8c03\u7528\u53ef\u7f13\u5b58\u548c\u4e0d\u53ef\u7f13\u5b58\u7684Apex\u65b9\u6cd5\u3002\u8981\u5237\u65b0\u53ef\u7f13\u5b58\u65b9\u6cd5\u7684\u7f13\u5b58\uff0c\u8bf7\u518d\u6b21\u8c03\u7528\u8be5\u65b9\u6cd5\u3002<\/span><\/p>\n<p><span>\u5728callApexImperative.js\u793a\u4f8b\u4e2d\uff0c\u5f53\u7528\u6237\u5355\u51fb\u00a0<\/span><code>lightning-button<\/code><span>.html\u6587\u4ef6\uff08\u672a\u663e\u793a\uff09\u4e2d\u7684a\u65f6\uff0c\u00a0<\/span><code>handleButtonClick<\/code><span>\u5c06<\/span><code>getRelatedContacts<\/code><span>\u5f3a\u5236\u8c03\u7528Apex\u65b9\u6cd5\u3002<\/span><\/p>\n<p><strong><span>callApexImperative.js<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api<span class=\"token punctuation\">,<\/span> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getRelatedContacts<\/span> from <span class=\"token string\">'@salesforce\/apex\/AccountController.getRelatedContacts'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CallApexImperative<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token annotation punctuation\">@api<\/span> recordId<span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">handleButtonClick<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token function\">getRelatedContacts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/imperative Apex call<\/span>\n            accountId<span class=\"token operator\">:<\/span> <span class=\"token string\">'$recordId'<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n            <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span>contacts <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n                <span class=\"token comment\">\/\/code to execute if related contacts are returned successfully<\/span>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n            <span class=\"token punctuation\">.<\/span><span class=\"token keyword\">catch<\/span><span class=\"token punctuation\">(<\/span>error <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n                <span class=\"token comment\">\/\/code to execute if related contacts are not returned successfully<\/span>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u7b2c2\u884c\uff1a\u6211\u4eec<\/span><code>getRelatedContacts<\/code><span>\u4ece<\/span><code>AccountController<\/code><span>\u7c7b\u4e2d\u5bfc\u5165\u51fd\u6570\u00a0\u3002<\/span><\/li>\n<li><span>\u7b2c4\u884c\uff1a\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u516c\u5171<\/span><code>recordId<\/code><span>\u5c5e\u6027\uff0c\u4ee5\u4fbfFlexiPage\u53ef\u4ee5\u4f20\u9012\u8be5\u7ec4\u4ef6\u6b63\u5728\u4e3a\u5176\u663e\u793a\u76f8\u5173\u8054\u7cfb\u4eba\u7684\u5e10\u6237\u7684ID\u3002<\/span><\/li>\n<li><span>\u7b2c6-7\u884c\uff1a\u5f53<\/span><code>handleButtonClick<\/code><span>\u6846\u67b6\u8c03\u7528\u8be5<\/span><code>getRelatedContacts<\/code><span>\u65b9\u6cd5\u65f6\uff0c\u6211\u4eec\u5fc5\u987b\u5f3a\u5236\u8c03\u7528Apex\u65b9\u6cd5\uff0c\u5e76\u4f20\u9012<\/span><code>accountId<\/code><span>\u65b9\u6cd5\u9700\u8981\u83b7\u53d6\u6b63\u786e\u5ba2\u6237\u7684\u76f8\u5173\u8054\u7cfb\u4eba\u7684\u3002<\/span><\/li>\n<li><span>\u7b2c9-14\u884c\uff1a\u7b2c6\u884c\u4e2d\u7684\u547d\u4ee4\u5f0fApex\u8c03\u7528\u8fd4\u56de\u4e86\u4e00\u4e2apromise\u3002\u5982\u679cApex\u65b9\u6cd5\u8c03\u7528\u6210\u529f\uff0c\u5219\u5b9e\u73b0\u8bfa\u8a00\u5e76<\/span><code>then<\/code><span>\u8fd0\u884c\u8be5\u00a0\u65b9\u6cd5\u3002\u5426\u5219\uff0c\u627f\u8bfa\u5c06\u88ab\u62d2\u7edd\uff0c\u8be5\u00a0<\/span><code>catch<\/code><span>\u65b9\u6cd5\u5c06\u8fd0\u884c\u3002<\/span><\/li>\n<\/ul>\n<p><span>\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u8bb0\u5f55\u5217\u8868\u7684\u9996\u9009\u65b9\u6cd5\u662f\u4f7f\u7528\u00a0\u57fa\u672c\u7ec4\u4ef6\u3002\u4f7f\u7528\u521b\u5efa\u8868\u683c\u6570\u636e\u7684\u529f\u80fd\uff0c\u5982\u65e0\u9650\u6eda\u52a8\uff0c\u5185\u8054\u7f16\u8f91\uff0c\u6807\u9898\u548c\u884c\u7ea7\u7684\u52a8\u4f5c\uff0c\u8c03\u6574\u5927\u5c0f\uff0c\u7b49\u7b49\u3002\u8be5UI\u7ec4\u4ef6\u9700\u8981\u63d0\u4f9b\u6570\u636e\u3002\u751f\u6210\u8be5\u6570\u636e\u7684\u6700\u5e38\u89c1\u65b9\u6cd5\u662f\u4ee5\u672c\u6a21\u5757\u524d\u9762\u4ecb\u7ecd\u7684\u4efb\u4f55\u4e00\u79cd\u65b9\u5f0f\u8c03\u7528Apex\u3002\u00a0<\/span><code>lightning-datatable<\/code><code>lightning-datatable<\/code><\/p>\n<h2 id=\"deploy-a-lightning-web-component-that-lists-records-in-a-table\"><span>\u90e8\u7f72\u5728\u8868\u4e2d\u5217\u51fa\u8bb0\u5f55\u7684Lightning Web\u7ec4\u4ef6<\/span><\/h2>\n<p><span>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u793a\u4f8b\uff0c\u8be5\u793a\u4f8b\u5728\u4e2d\u663e\u793a\u73b0\u6709\u5e10\u6237\u7684\u5217\u8868\u00a0<\/span><code>lightning-datatable<\/code><span>\u3002\u6211\u4eec\u5c06\u4f7f\u7528Apex\u5e76<\/span><code>@wire<\/code><span>\u68c0\u7d22\u8bb0\u5f55\u3002<\/span><\/p>\n<ol>\n<li><span>\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u7684Apex\u7c7b<\/span><code>AccountController<\/code><span>\uff1a<\/span>\n<ol>\n<li><span>\u5728\u201c\u8d44\u6e90\u7ba1\u7406\u5668\u201d\u7a97\u683c\u4e2d\uff0c\u53f3\u952e\u5355\u51fb<\/span><strong><span>classes<\/span><\/strong><span>\u6587\u4ef6\u5939\uff0c\u7136\u540e\u9009\u62e9<\/span><strong><span>SFDX\uff1aCreate Apex Class<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165\u73ed\u7ea7\u540d\u79f0\uff0c<\/span><code>AccountController<\/code><span>\u7136\u540e\u6309\u00a0<\/span><strong><span>Enter<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u518d\u6b21\u00a0\u6309<\/span><strong><span>Enter<\/span><\/strong><span>\u63a5\u53d7\u9ed8\u8ba4\u76ee\u5f55\u3002<\/span><\/li>\n<\/ol>\n<\/li>\n<li><span>\u7528\u4ee5\u4e0b\u4ee3\u7801\u66ff\u6362AccountController\u7c7b\u7684\u5185\u5bb9\uff1a<\/span>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">with<\/span> <span class=\"token namespace\">sharing<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AccountController<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token annotation punctuation\">@AuraEnabled<\/span><span class=\"token punctuation\">(<\/span>cacheable<span class=\"token operator\">=<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Account<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">getAccounts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">[<\/span>\n            SELECT <span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">AnnualRevenue<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Industry<\/span>\n            FROM <span class=\"token class-name\">Account<\/span>\n            WITH SECURITY_ENFORCED\n            ORDER BY <span class=\"token class-name\">Name<\/span>\n        <span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u7b2c2\u884c\uff1a\u6211\u4eec\u4f7f\u7528\u6ce8\u91ca\u65b9\u6cd5\uff0c\u00a0<\/span><code>@AuraEnabled(cacheable=true)<\/code><span>\u4ee5\u4fbf\u5c06\u7ed3\u679c\u7f13\u5b58\u3002<\/span><\/li>\n<li><span>\u7b2c3\u884c\uff1a\u6211\u4eec<\/span><code>getAccounts<\/code><span>\u5728Apex\u4e2d\u5b9a\u4e49\u4e86\u65b9\u6cd5\uff0c\u4ee5\u6267\u884c\u8bfb\u53d6\u64cd\u4f5c\u5e76\u68c0\u7d22\u73b0\u6709\u5e10\u6237\u3002<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span>\u521b\u5efa\u540d\u4e3a\u7684Lightning Web\u7ec4\u4ef6<\/span><code>accountList<\/code><span>\u3002<\/span><\/li>\n<li><span>\u7528\u4ee5\u4e0b\u4ee3\u7801\u66ff\u6362accountList.js\u6587\u4ef6\u7684\u5185\u5bb9\uff1a<\/span>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> NAME_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Name'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> REVENUE_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.AnnualRevenue'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> INDUSTRY_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Industry'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getAccounts<\/span> from <span class=\"token string\">'@salesforce\/apex\/AccountController.getAccounts'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">const<\/span> COLUMNS <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span>\n    <span class=\"token punctuation\">{<\/span> label<span class=\"token operator\">:<\/span> <span class=\"token string\">'Account Name'<\/span><span class=\"token punctuation\">,<\/span> fieldName<span class=\"token operator\">:<\/span> NAME_FIELD<span class=\"token punctuation\">.<\/span>fieldApiName<span class=\"token punctuation\">,<\/span> type<span class=\"token operator\">:<\/span> <span class=\"token string\">'text'<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token punctuation\">{<\/span> label<span class=\"token operator\">:<\/span> <span class=\"token string\">'Annual Revenue'<\/span><span class=\"token punctuation\">,<\/span> fieldName<span class=\"token operator\">:<\/span> REVENUE_FIELD<span class=\"token punctuation\">.<\/span>fieldApiName<span class=\"token punctuation\">,<\/span> type<span class=\"token operator\">:<\/span> <span class=\"token string\">'currency'<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token punctuation\">{<\/span> label<span class=\"token operator\">:<\/span> <span class=\"token string\">'Industry'<\/span><span class=\"token punctuation\">,<\/span> fieldName<span class=\"token operator\">:<\/span> INDUSTRY_FIELD<span class=\"token punctuation\">.<\/span>fieldApiName<span class=\"token punctuation\">,<\/span> type<span class=\"token operator\">:<\/span> <span class=\"token string\">'text'<\/span> <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AccountList<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    columns <span class=\"token operator\">=<\/span> COLUMNS<span class=\"token punctuation\">;<\/span>\n    <span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>getAccounts<span class=\"token punctuation\">)<\/span>\n    accounts<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u7b2c2\u81f34\u884c\uff1a\u4e0e\u524d\u9762\u7684\u793a\u4f8b\u4e00\u6837\uff0c\u6211\u4eec\u5bfc\u5165\u5b57\u6bb5\u5f15\u7528\u3002<\/span><\/li>\n<li><span>\u7b2c5\u884c\uff1a\u6211\u4eec<\/span><code>getAccounts<\/code><span>\u4eceAccountController\u7c7b\u5bfc\u5165\u51fd\u6570\u3002<\/span><\/li>\n<li><span>\u7b2c13\u884c\uff1a\u6211\u4eec<\/span><code>@wire<\/code><span>\u4e0e\u00a0<\/span><code>getAccounts<\/code><span>\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\u6765\u68c0\u7d22\u6570\u636e\u3002<\/span><\/li>\n<li><span>\u7b2c14\u884c\uff1a\u6211\u4eec\u5c06\u7ed3\u679c\u5b58\u50a8\u5728<\/span><code>accounts<\/code><span>\u5c5e\u6027\u4e2d\u3002\u5982\u679c\u64cd\u4f5c\u6210\u529f\uff0c\u5219\u53ef\u4ee5\u5728\u4e0a\u8bbf\u95ee\u8bb0\u5f55\u00a0<\/span><code>accounts.data<\/code><span>\u3002\u5982\u679c\u5931\u8d25\uff0c\u5219\u9519\u8bef\u51fa\u73b0\u5728\u4e2d\u00a0<\/span><code>accounts.error<\/code><span>\u3002<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span>\u7528\u4ee5\u4e0b\u4ee3\u7801\u66ff\u6362accountList.html\u6587\u4ef6\u7684\u5185\u5bb9\uff1a<\/span>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span>\n        <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>accounts<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n            <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>datatable\n                key<span class=\"token operator\">-<\/span>field<span class=\"token operator\">=<\/span><span class=\"token string\">\"Id\"<\/span>\n                data<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>accounts<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">}<\/span>\n                columns<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>columns<span class=\"token punctuation\">}<\/span>\n            <span class=\"token operator\">&gt;<\/span>\n           <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>datatable<span class=\"token operator\">&gt;<\/span>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u884c4-9\uff1a\u6211\u4eec\u5b9a\u4e49\u7684<\/span><code>lightning-datatable<\/code><span>\u57fa\u7840\u7ec4\u4ef6\u4f7f\u7528<\/span><code>accounts.data<\/code><span>\u548c<\/span><code>columns<\/code><span>\u88abJavaScript\u6587\u4ef6\u4e2d\u586b\u5145\u3002<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span>\u4fdd\u5b58\u60a8\u7684AccountController\u7c7b\u3002<\/span><\/li>\n<li><span>\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u66ff\u6362accountList.js-meta.xml\u7684\u5185\u5bb9\uff0c\u4ee5\u4fbf\u8be5\u7ec4\u4ef6\u53ef\u5728\u5e94\u7528\u7a0b\u5e8f\u9875\u9762\u4e0a\u4f7f\u7528\uff1a<\/span>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">?<\/span>xml version<span class=\"token operator\">=<\/span><span class=\"token string\">\"1.0\"<\/span> encoding<span class=\"token operator\">=<\/span><span class=\"token string\">\"UTF-8\"<\/span><span class=\"token operator\">?<\/span><span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token class-name\">LightningComponentBundle<\/span> xmlns<span class=\"token operator\">=<\/span><span class=\"token string\">\"http:\/\/soap.sforce.com\/2006\/04\/metadata\"<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>apiVersion<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token number\">48.0<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>apiVersion<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>isExposed<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>isExposed<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>targets<span class=\"token punctuation\">&gt;<\/span><\/span>\n        <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>target<span class=\"token punctuation\">&gt;<\/span><\/span>lightning__AppPage<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>target<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>targets<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span><span class=\"token class-name\">LightningComponentBundle<\/span><span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6240\u6709\u4e09\u4e2a\u7ec4\u4ef6\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u5c06<\/span><strong><span>force-app \/ main \/ default<\/span><\/strong><span>\u6587\u4ef6\u5939\u90e8\u7f72\u5230\u60a8\u7684Trailhead Playground\u3002<\/span><\/li>\n<li><span>\u5728\u60a8\u7684Trailhead\u6e38\u4e50\u573a\u4e2d\uff0c\u5bfc\u822a\u5230Lightning App 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rel=\"noopener\"><span>\u6587\u6863<\/span><\/a><span>\u4e2d\u7684\u521b\u5efa\u81ea\u5b9a\u4e49\u6570\u636e\u7c7b\u578b\u00a0\u3002<\/span><\/li>\n<li><span>\u95ea\u7535\u6570\u636e\u8868\u7ec4\u4ef6\u76ee\u524d\u65e0\u6cd5\u5728\u79fb\u52a8\u8bbe\u5907\u4e0a\u4f7f\u7528\u3002\u5982\u679c\u60a8\u9700\u8981\u652f\u6301\u79fb\u52a8\u8bbe\u5907\uff0c\u8bf7\u521b\u5efa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u8868\u3002<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u73b0\u5728\uff0c\u60a8\u77e5\u9053\u4e86\u4e0eLightning Web\u7ec4\u4ef6\u4e2d\u7684Salesforce\u6570\u636e\u8fdb\u884c\u4ea4\u4e92\u7684\u51e0\u79cd\u65b9\u6cd5\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u5728\u53d1\u751f\u670d\u52a1\u5668\u9519\u8bef\u65f6\u8fdb\u884c\u5904\u7406\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u76ee\u6807 \u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a 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