{"id":3300,"date":"2021-01-13T15:14:12","date_gmt":"2021-01-13T07:14:12","guid":{"rendered":"http:\/\/www.salesforcecrm.cn\/?p=3300"},"modified":"2021-01-13T15:14:12","modified_gmt":"2021-01-13T07:14:12","slug":"%e4%bd%bf%e7%94%a8lightning-web%e7%bb%84%e4%bb%b6%e6%9e%84%e5%bb%babear-tracking%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f-%e5%a4%84%e7%90%86%e8%ae%b0%e5%bd%95%e6%b8%85%e5%8d%95","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3300","title":{"rendered":"\u4f7f\u7528Lightning Web\u7ec4\u4ef6\u6784\u5efaBear-tracking\u5e94\u7528\u7a0b\u5e8f &#8211; \u5904\u7406\u8bb0\u5f55\u6e05\u5355"},"content":{"rendered":"<h2 id=\"create-the-bear-list-component\"><span>\u521b\u5efa\u718a\u5217\u8868\u7ec4\u4ef6<\/span><\/h2>\n<p><span>\u516c\u56ed\u62a4\u6797\u5458\u5e0c\u671b\u76f4\u63a5\u4ece\u5176\u4e3b\u9875\u4e0a\u770b\u5230\u718a\u7684\u76ee\u5f55\u3002\u60a8\u7684\u4efb\u52a1\u662f\u5b9e\u65bd\u8be5\u6e05\u5355\u3002<\/span><\/p>\n<ol>\n<li><span>\u5728VS Code\u4e2d\uff0c\u53f3\u952e\u5355\u51fb\u8be5<\/span><code>lwc<\/code><span>\u6587\u4ef6\u5939\uff0c\u7136\u540e\u5355\u51fb<\/span><strong><span>SFDX\uff1aCreate Lightning Web Component<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u547d\u540d\u7ec4\u4ef6<\/span><code>bearList<\/code><span>\u3002<\/span><\/li>\n<li><span>\u7f16\u8f91<\/span><code>bearList.js-meta.xml<\/code><span>\u6587\u4ef6\uff0c\u5e76\u66ff\u6362<\/span><code>&lt;isExposed&gt;false&lt;\/isExposed&gt;<\/code><span>\u4e3a\u8fd9\u4e9b\u884c\u3002<\/span>\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>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\t<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\t<span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>target<span class=\"token punctuation\">&gt;<\/span><\/span>lightning__RecordPage<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>target<span class=\"token operator\">&gt;<\/span>\n\t<span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>target<span class=\"token punctuation\">&gt;<\/span><\/span>lightning__HomePage<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><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p><span>\u8fd9\u4f7f\u60a8\u7684\u7ec4\u4ef6\u53ef\u4ee5\u653e\u7f6e\u5728Lightning App Builder\u4e2d\u7684\u4efb\u4f55\u7c7b\u578b\u7684\u9875\u9762\u4e0a\u3002<\/span><\/li>\n<li><span>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u66ff\u6362\u4e3a<\/span><code>bearList.html<\/code><span>\uff1a<\/span>\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\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token string\">\"Bears\"<\/span> icon<span class=\"token operator\">-<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"utility:animal_and_nature\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-card__body_inner\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">Start<\/span> bear list <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<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>bears<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>layout multiple<span class=\"token operator\">-<\/span>rows<span class=\"token operator\">=<\/span><span class=\"token string\">\"true\"<\/span> pull<span class=\"token operator\">-<\/span><span class=\"token keyword\">to<\/span><span class=\"token operator\">-<\/span>boundary<span class=\"token operator\">=<\/span><span class=\"token string\">\"small\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>each<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bears<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>item<span class=\"token operator\">=<\/span><span class=\"token string\">\"bear\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>layout<span class=\"token operator\">-<\/span>item key<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Id<\/span><span class=\"token punctuation\">}<\/span> size<span class=\"token operator\">=<\/span><span class=\"token string\">\"3\"<\/span> <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-p-around_x-small\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">Start<\/span> bear tile <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"bear-tile\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-p-horizontal_small bear-tile-body\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-media\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-media__figure\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>img src<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>appResources<span class=\"token punctuation\">.<\/span>bearSilhouette<span class=\"token punctuation\">}<\/span> alt<span class=\"token operator\">=<\/span><span class=\"token string\">\"Bear profile\"<\/span> <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"bear-silhouette\"<\/span><span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-media__body\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Sex__c<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Age__c<\/span><span class=\"token punctuation\">}<\/span> years old<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Height__c<\/span><span class=\"token punctuation\">}<\/span> cm<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_xx-small\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>bear<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Weight__c<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token class-name\">Kg<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t\t<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\t\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">End<\/span> bear tile <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>layout<span class=\"token operator\">-<\/span>item<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>layout<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">End<\/span> bear list <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> <span class=\"token class-name\">Data<\/span> failed <span class=\"token keyword\">to<\/span> <span class=\"token namespace\">load<\/span> <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t<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>error<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-text-color_error\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t\t\t\t<span class=\"token class-name\">An<\/span> error occurred <span class=\"token keyword\">while<\/span> loading the bear list\n\t\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<span class=\"token operator\">&gt;<\/span>\n\t<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<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><code>template<\/code><span>\u5e26\u6709<\/span><code>for:each<\/code><span>\u548c<\/span><code>for:item<\/code><span>\u6307\u4ee4\u7684\u6807\u8bb0\u7528\u4e8e\u904d\u5386<\/span><code>bears<\/code><span>\u8bb0\u5f55\u3002\u6bcf\u4e2a\u8fed\u4ee3\u9879\u90fd\u4f20\u9012\u7ed9<\/span><code>bear<\/code><span>\u5c5e\u6027\u3002<\/span><\/li>\n<li><span>\u6a21\u677f\u7684\u6bcf\u6b21\u8fed\u4ee3\u5747\u6807\u8bb0\u6709\u7279\u6b8a<\/span><code>key<\/code><span>\u5c5e\u6027\u3002<\/span><code>key<\/code><span>\u5728\u8fed\u4ee3\u7684\u4e0a\u4e0b\u6587\u4e2d\u5fc5\u987b\u5177\u6709\u552f\u4e00\u503c\u3002\u90a3\u5c31\u662f\u6211\u4eec\u7ec4\u4ef6\u4e2d\u7684\u718aid\u3002<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u66ff\u6362\u4e3a<\/span><code>bearList.js<\/code><span>\uff1a<\/span>\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> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">ursusResources<\/span> from <span class=\"token string\">'@salesforce\/resourceUrl\/ursus_park'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">\/** BearController.getAllBears() Apex method *\/<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getAllBears<\/span> from <span class=\"token string\">'@salesforce\/apex\/BearController.getAllBears'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BearList<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n\tbears<span class=\"token punctuation\">;<\/span>\n\terror<span class=\"token punctuation\">;<\/span>\n\tappResources <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\n\t\tbearSilhouette<span class=\"token operator\">:<\/span> `$<span class=\"token punctuation\">{<\/span>ursusResources<span class=\"token punctuation\">}<\/span><span class=\"token operator\">\/<\/span>img<span class=\"token operator\">\/<\/span>standing<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>silhouette<span class=\"token punctuation\">.<\/span>png`<span class=\"token punctuation\">,<\/span>\n\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token function\">connectedCallback<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">loadBears<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\t<span class=\"token function\">loadBears<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token function\">getAllBears<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n\t\t\t<span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span>result <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>bears <span class=\"token operator\">=<\/span> result<span class=\"token punctuation\">;<\/span>\n\t\t\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n\t\t\t<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\t\t\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>error <span class=\"token operator\">=<\/span> error<span class=\"token punctuation\">;<\/span>\n\t\t\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<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<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u6211\u4eec\u5bfc\u5165<\/span><code>ursusResources<\/code><span>\u9002\u914d\u5668\uff0c\u8fd9\u4f7f\u6211\u4eec\u80fd\u591f\u8bbf\u95ee\u4e0e\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u5173\u8054\u7684\u9759\u6001\u8d44\u6e90\u3002\u6211\u4eec\u4f7f\u7528\u6b64\u9002\u914d\u5668\u6765\u6784\u5efa\u4e00\u4e2a<\/span><code>appResources<\/code><span>\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5728\u6a21\u677f\u4e2d\u516c\u5f00\u718a\u526a\u5f71\u56fe\u50cfURL\u3002<\/span><\/li>\n<li><span>\u6211\u4eec\u5bfc\u5165<\/span><code>getAllBears<\/code><span>\u9002\u914d\u5668\uff0c\u8fd9\u4f7f\u6211\u4eec\u53ef\u4ee5\u4e0e<\/span><code>BearController.getAllBears()<\/code><span>Apex\u65b9\u6cd5\u8fdb\u884c\u4ea4\u4e92\u3002\u8be5<\/span><code>BearController<\/code><span>\u73ed\u662f\u60a8\u5728\u8fd9\u4e2a\u9879\u76ee\u5f00\u59cb\u90e8\u7f72\u7684\u4ee3\u7801\u6346\u7ed1\u5728\u4e00\u8d77\u3002\u8be5<\/span><code>getAllBears<\/code><span>\u65b9\u6cd5\u8fd4\u56de\u83b7\u53d6\u6240\u6709\u718a\u8bb0\u5f55\u7684\u67e5\u8be2\u7ed3\u679c\u3002<\/span><\/li>\n<li><span>\u6211\u4eec\u5b9e\u73b0\u4e86\u8be5<\/span><code>connectedCallback<\/code><span>\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u5141\u8bb8\u6211\u4eec\u5728\u7ec4\u4ef6\u52a0\u8f7d\u540e\u6267\u884c\u4ee3\u7801\u3002\u6211\u4eec\u4f7f\u7528\u6b64\u51fd\u6570\u6765\u8c03\u7528\u8be5<\/span><code>loadBears<\/code><span>\u51fd\u6570\u3002<\/span><\/li>\n<li><span>\u8be5<\/span><code>loadBears<\/code><span>\u51fd\u6570\u8c03\u7528<\/span><code>getAllBears<\/code><span>\u9002\u914d\u5668\u3002\u9002\u914d\u5668\u8c03\u7528\u6211\u4eec\u7684Apex\u4ee3\u7801\u5e76\u8fd4\u56deJS promise\u3002\u6211\u4eec\u4f7f\u7528promise\u5c06\u8fd4\u56de\u7684\u6570\u636e\u4fdd\u5b58\u5728<\/span><code>bears<\/code><span>\u5c5e\u6027\u4e2d\u6216\u62a5\u544a\u9519\u8bef\u3002\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u68c0\u7d22\u6570\u636e\u79f0\u4e3a\u547d\u4ee4\u5f0fApex\u3002<\/span><\/li>\n<\/ul>\n<\/li>\n<li><code>bearList.css<\/code><span>\u5728<\/span><code>bearList<\/code><span>\u76ee\u5f55\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6\uff0c\u5e76\u5c06\u4ee5\u4e0b\u4ee3\u7801\u7c98\u8d34\u5230\u8be5\u6587\u4ef6\u4e2d\u3002<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">.<\/span>bear<span class=\"token operator\">-<\/span>tile <span class=\"token punctuation\">{<\/span>\n\t\tborder<span class=\"token operator\">:<\/span> <span class=\"token number\">1<\/span>px solid #d2955d<span class=\"token punctuation\">;<\/span>\n\t\tborder<span class=\"token operator\">-<\/span>radius<span class=\"token operator\">:<\/span> <span class=\"token number\">.25<\/span>rem<span class=\"token punctuation\">;<\/span>\n\t\tdisplay<span class=\"token operator\">:<\/span> block<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">.<\/span>bear<span class=\"token operator\">-<\/span>silhouette <span class=\"token punctuation\">{<\/span>\n\t\theight<span class=\"token operator\">:<\/span> <span class=\"token number\">100<\/span>px<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<p><span>\u8fd9\u4e9bCSS\u89c4\u5219\u4e3a\u718a\u5361\u6dfb\u52a0\u8fb9\u6846\uff0c\u5e76\u8bbe\u7f6e\u718a\u526a\u5f71\u56fe\u50cf\u7684\u9ad8\u5ea6\u3002<\/span><\/li>\n<li><span>\u5c06\u66f4\u65b0\u7684\u4ee3\u7801\u90e8\u7f72\u5230\u7ec4\u7ec7\u3002\u53f3\u952e\u5355\u51fb\u9ed8\u8ba4\u6587\u4ef6\u5939\uff0c\u7136\u540e\u5355\u51fb<\/span><strong><span>SFDX\uff1a\u5c06\u6e90\u90e8\u7f72\u5230\u7ec4\u7ec7<\/span><\/strong><span>\u3002<\/span><\/li>\n<\/ol>\n<h2 id=\"add-the-bear-list-component-to-the-app-home-page\"><span>\u5c06Bear List\u7ec4\u4ef6\u6dfb\u52a0\u5230App\u4e3b\u9875<\/span><\/h2>\n<p><span>\u8ba9\u6211\u4eec\u5c06\u65b0\u7ec4\u4ef6\u6dfb\u52a0\u5230\u5e94\u7528\u7a0b\u5e8f\u4e3b\u9875\u3002<\/span><\/p>\n<ol>\n<li><span>\u5728\u60a8\u7684\u7ec4\u7ec7\u4e2d\uff0c\u4eceApp Launcher\uff08\u00a0<\/span><img decoding=\"async\" class=\"image\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/projects\/lwc-build-flexible-apps\/record-list\/images\/3399b340afe21729752a30c52a639255_app-launcher-5.png\" alt=\"\u5e94\u7528\u542f\u52a8\u5668\" \/><span>\uff09\u4e2d\u627e\u5230\u5e76\u9009\u62e9Ursus Park\u3002<\/span><\/li>\n<li><span>\u5355\u51fb\u8bbe\u7f6e\uff08\u00a0<\/span><img decoding=\"async\" class=\"image\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/projects\/lwc-build-flexible-apps\/record-list\/images\/8285b258a0d48e9c46536b539ab038f3_setup-icon-5.png\" alt=\"\u5b89\u88c5\u88c5\u7f6e\" \/><span>\uff09\uff0c\u7136\u540e\u9009\u62e9<\/span><strong><span>\u7f16\u8f91\u9875\u9762<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u5728\u201c\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u201d\u4e0b\uff0c\u627e\u5230\u60a8\u7684bearList\u7ec4\u4ef6\u5e76\u5c06\u5176\u62d6\u52a8\u5230\u9875\u9762\u7684\u5de6\u4e0a\u65b9\u3002<\/span><\/li>\n<li><span>\u5355\u51fb<\/span><strong><span>\u4fdd\u5b58<\/span><\/strong><span>\uff0c\u7136\u540e\u5355\u51fb<\/span><strong><span>\u8fd4\u56de<\/span><\/strong><span>\u4ee5\u8fd4\u56de\u4e3b\u9875\u5e76\u68c0\u67e5\u60a8\u7684\u5de5\u4f5c\u3002<\/span><\/li>\n<\/ol>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"image image-block image-center\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/projects\/lwc-build-flexible-apps\/record-list\/images\/b7d182f963d8abe65f4a74902b730439_cjqwtsuej-00190-x-4-viewedf-2-a.png\" alt=\"Ursus Park\u4e3b\u9875\u4e0a\u7684\u718a\u540d\u5355\" width=\"624\" height=\"304\" \/><\/p>\n<h2 id=\"use-wired-apex\"><span>\u4f7f\u7528\u6709\u7ebfApex<\/span><\/h2>\n<p><span>\u73b0\u5728\uff0c\u6211\u4eec\u5c06\u63a2\u7d22\u4e00\u79cd\u68c0\u7d22\u718a\u5e02\u540d\u5355\u7684\u65b0\u65b9\u6cd5\u3002\u6211\u4eec\u5c06\u4f7f\u7528\u6709\u7ebfApex\u4ee3\u66ff\u547d\u4ee4\u5f0fApex\u3002<\/span><\/p>\n<ol>\n<li><span>\u7f16\u8f91<\/span><code>bearList.html<\/code><span>\u5e76\u66ff\u6362<\/span><code>&lt;template if:true={bears}&gt;<\/code><span>\u4e3a<\/span><code>&lt;template if:true={bears.data}&gt;<\/code><span>\u3002<\/span><\/li>\n<li><span>\u66ff\u6362<\/span><code>&lt;template for:each={bears} for:item=\"bear\"&gt;<\/code><span>\u4e3a<\/span><code>&lt;template for:each={bears.data} for:item=\"bear\"&gt;<\/code><span>\u3002<\/span><\/li>\n<li><span>\u66ff\u6362<\/span><code>&lt;template if:true={error}&gt;<\/code><span>\u4e3a<\/span><code>&lt;template if:true={bears.error}&gt;<\/code><span>\u3002\u5728\u8fd9\u4e00\u70b9\u4e0a\uff0c\u9664\u4e86\u547d\u4ee4\u6027Apex\u4e4b\u5916\uff0c\u6a21\u677f\u51e0\u4e4e\u662f\u76f8\u540c\u7684\u3002\u73b0\u5728\uff0c\u6211\u4eec\u901a\u8fc7\u8c03\u7528<\/span><code>bears.data<\/code><span>\u00a0\u800c\u4e0d\u662fjust\u6765\u8bbf\u95ee\u7a7a\u5934\u5217\u8868<\/span><code>bears<\/code><span>\uff0c\u5e76\u4e14\u73b0\u5728\u4f7f\u7528<\/span><code>bears.error<\/code><span>\u800c\u4e0d\u662fjust\u6765\u68c0\u7d22\u9519\u8bef<\/span><code>error<\/code><span>\u3002<\/span><\/li>\n<li><span>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u66ff\u6362\u4e3a<\/span><code>bearList.js<\/code><span>\uff1a<\/span>\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> <span class=\"token namespace\">ursusResources<\/span> from <span class=\"token string\">'@salesforce\/resourceUrl\/ursus_park'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">\/** BearController.getAllBears() Apex method *\/<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getAllBears<\/span> from <span class=\"token string\">'@salesforce\/apex\/BearController.getAllBears'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BearList<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n\t<span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>getAllBears<span class=\"token punctuation\">)<\/span> bears<span class=\"token punctuation\">;<\/span>\n\tappResources <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\n\t\tbearSilhouette<span class=\"token operator\">:<\/span> `$<span class=\"token punctuation\">{<\/span>ursusResources<span class=\"token punctuation\">}<\/span><span class=\"token operator\">\/<\/span>img<span class=\"token operator\">\/<\/span>standing<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>silhouette<span class=\"token punctuation\">.<\/span>png`<span class=\"token punctuation\">,<\/span>\n\t<span class=\"token punctuation\">}<\/span><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<p><span>\u901a\u8fc7<\/span><code>bears<\/code><span>\u4f7f\u7528\u6709\u7ebfApex\u88c5\u9970\u5c5e\u6027\uff0c\u6211\u4eec\u5927\u5927\u7b80\u5316\u4e86JS\u4ee3\u7801\u3002\u73b0\u5728\uff0c\u6211\u4eec\u9700\u8981\u7684\u6240\u6709\u6570\u636e\u90fd\u901a\u8fc7\u4ee5\u4e0b\u4e00\u884c\uff1a<\/span><code>@wire(getAllBears) bears;<\/code><\/li>\n<li><span>\u5c06\u66f4\u65b0\u7684\u4ee3\u7801\u90e8\u7f72\u5230\u7ec4\u7ec7\u4e2d\uff0c\u5e76\u89c2\u5bdf\u5176\u884c\u4e3a\u4e0e\u547d\u4ee4\u5f0fApex\u76f8\u540c\u3002<\/span><\/li>\n<\/ol>\n<h2 id=\"pass-parameters-in-your-apex-calls\"><span>\u5728\u60a8\u7684Apex\u547c\u53eb\u4e2d\u4f20\u9012\u53c2\u6570<\/span><\/h2>\n<p><span>\u4e4c\u5c14\u82cf\u65af\u516c\u56ed\uff08Ursus Park\uff09\u7684\u5c45\u6c11\u4eba\u6570\u6b63\u5728\u4e0a\u5347\u3002\u6e38\u9a91\u5175\u5e0c\u671b\u80fd\u591f\u8fc7\u6ee4\u718a\u540d\u5355\u4ee5\u5feb\u901f\u627e\u5230\u5b83\u4eec\u3002\u8ba9\u6211\u4eec\u5728\u718a\u5217\u8868\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u641c\u7d22\u680f\u6765\u5e2e\u52a9\u4ed6\u4eec\u3002<\/span><\/p>\n<ol>\n<li><span>\u7f16\u8f91<\/span><code>bearList.html<\/code><span>\u4ee5\u4e0b\u4ee3\u7801\u5e76\u5c06\u5176\u6dfb\u52a0\u5230<\/span><code>&lt;template if:true={bears.data}&gt;<\/code><span>\u6807\u7b7e\u4e4b\u540e\u3002<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>input type<span class=\"token operator\">=<\/span><span class=\"token string\">\"search\"<\/span>\n\tonchange<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>handleSearchTermChange<span class=\"token punctuation\">}<\/span>\n\tvariant<span class=\"token operator\">=<\/span><span class=\"token string\">\"label-hidden\"<\/span>\n\t<span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-var-m-bottom_small\"<\/span>\n\tlabel<span class=\"token operator\">=<\/span><span class=\"token string\">\"Search\"<\/span>\n\tplaceholder<span class=\"token operator\">=<\/span><span class=\"token string\">\"Search for bears\"<\/span>\n\tvalue<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>searchTerm<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>input<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p><span>\u8fd9\u5c06\u6dfb\u52a0\u4e00\u4e2a\u641c\u7d22\u8f93\u5165\u5b57\u6bb5\u3002\u5f53\u5176\u503c\u66f4\u6539\u65f6\uff0c\u6211\u4eec\u8c03\u7528\u8be5<\/span><code>handleSearchTermChange<\/code><span>\u51fd\u6570\u3002<\/span><\/li>\n<li><span>\u5728<\/span><code>&lt;\/lightning-layout&gt;<\/code><span>\u7ed3\u675f\u6807\u8bb0\u540e\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u3002<\/span>\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><span class=\"token operator\">--<\/span> <span class=\"token class-name\">No<\/span> bears found <span class=\"token operator\">--<\/span><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\">false<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>hasResults<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n\t<span class=\"token operator\">&lt;<\/span>div <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"slds-align_absolute-center slds-var-m-vertical_small\"<\/span><span class=\"token operator\">&gt;<\/span>\n\t\t<span class=\"token class-name\">This<\/span> is beary disturbing<span class=\"token punctuation\">,<\/span> we did not find results<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\n\t<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>div<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<p><span>\u8fd9\u4f1a\u6dfb\u52a0\u4e00\u6761\u6d88\u606f\uff0c\u6307\u793a\u672a\u627e\u5230\u7ed3\u679c\u3002\u4ec5\u5f53<\/span><code>hasResults<\/code><span>\u8868\u8fbe\u5f0f\u4e3afalse\u65f6\u624d\u4f1a\u663e\u793a\u6b64\u6d88\u606f\u3002<\/span><\/li>\n<li><span>\u5c06\u4ee5\u4e0b\u5185\u5bb9\u66ff\u6362\u4e3a<\/span><code>bearList.js<\/code><span>\uff1a<\/span>\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> <span class=\"token namespace\">ursusResources<\/span> from <span class=\"token string\">'@salesforce\/resourceUrl\/ursus_park'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">\/** BearController.searchBears(searchTerm) Apex method *\/<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">searchBears<\/span> from <span class=\"token string\">'@salesforce\/apex\/BearController.searchBears'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">BearList<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n\tsearchTerm <span class=\"token operator\">=<\/span> <span class=\"token string\">''<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>searchBears<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>searchTerm<span class=\"token operator\">:<\/span> <span class=\"token string\">'$searchTerm'<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n\tbears<span class=\"token punctuation\">;<\/span>\n\tappResources <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">{<\/span>\n\t\tbearSilhouette<span class=\"token operator\">:<\/span> `$<span class=\"token punctuation\">{<\/span>ursusResources<span class=\"token punctuation\">}<\/span><span class=\"token operator\">\/<\/span>img<span class=\"token operator\">\/<\/span>standing<span class=\"token operator\">-<\/span>bear<span class=\"token operator\">-<\/span>silhouette<span class=\"token punctuation\">.<\/span>png`<span class=\"token punctuation\">,<\/span>\n\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token function\">handleSearchTermChange<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token comment\">\/\/ Debouncing this method: do not update the reactive property as<\/span>\n\t\t<span class=\"token comment\">\/\/ long as this function is being called within a delay of 300 ms.<\/span>\n\t\t<span class=\"token comment\">\/\/ This is to avoid a very large number of Apex method calls.<\/span>\n\t\twindow<span class=\"token punctuation\">.<\/span><span class=\"token function\">clearTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>delayTimeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">const<\/span> searchTerm <span class=\"token operator\">=<\/span> event<span class=\"token punctuation\">.<\/span>target<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/ eslint-disable-next-line @lwc\/lwc\/no-async-operation<\/span>\n\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>delayTimeout <span class=\"token operator\">=<\/span> <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>searchTerm <span class=\"token operator\">=<\/span> searchTerm<span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">300<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n\tget <span class=\"token function\">hasResults<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n\t\t<span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>bears<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">.<\/span>length <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<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<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u6211\u4eec\u6dfb\u52a0\u4e86<\/span><code>searchTerm<\/code><span>\u53cd\u5e94\u6027\u5c5e\u6027\uff0c\u5e76\u5c06\u5176\u4f5c\u4e3a\u6709\u7ebfApex\u8c03\u7528\u7684\u53c2\u6570\u4f20\u9012\u7ed9<\/span><code>searchBears<\/code><span>\u3002<\/span><\/li>\n<li><span>\u8be5<\/span><code>handleSearchTermChange<\/code><span>\u529f\u80fd\u7528\u4e8e\u5bf9\u641c\u7d22\u8f93\u5165\u5b57\u6bb5\u7684\u503c\u7684\u53d8\u5316\u505a\u51fa\u53cd\u5e94\u3002\u66f4\u65b0<\/span><code>searchTerm<\/code><span>\u53cd\u5e94\u6027\u65f6\uff0c\u6211\u4eec\u6709\u76ee\u7684\u5730\u5f15\u5165\u4e86300\u6beb\u79d2\u7684\u5ef6\u8fdf\u3002\u5982\u679c\u6709\u66f4\u65b0\u5f85\u5904\u7406\uff0c\u6211\u4eec\u5c06\u53d6\u6d88\u5b83\uff0c\u5e76\u5728300\u6beb\u79d2\u5185\u91cd\u65b0\u5b89\u6392\u4e00\u4e2a\u65b0\u7684\u66f4\u65b0\u3002\u5f53\u7528\u6237\u952e\u5165\u5b57\u6bcd\u4ee5\u5f62\u6210\u5355\u8bcd\u65f6\uff0c\u6b64\u5ef6\u8fdf\u4f1a\u51cf\u5c11Apex\u547c\u53eb\u7684\u6b21\u6570\u3002\u6bcf\u4e2a\u65b0\u5b57\u6bcd\u90fd\u4f1a\u89e6\u53d1\u5bf9\u7684\u547c\u53eb\uff0c<\/span><code>handleSearchTermChange<\/code><span>\u4f46\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c<\/span><code>searchBears<\/code><span>\u00a0\u53ea\u6709\u5728\u7528\u6237\u5b8c\u6210\u8f93\u5165\u540e\u624d\u88ab\u8c03\u7528\u4e00\u6b21\u3002\u8fd9\u79cd\u6280\u672f\u79f0\u4e3a\u53cd\u8df3\u3002<\/span><\/li>\n<li><span>\u6211\u4eec\u516c\u5f00\u8be5<\/span><code>hasResults<\/code><span>\u8868\u8fbe\u5f0f\u4ee5\u68c0\u67e5\u641c\u7d22\u662f\u5426\u8fd4\u56de\u4e86\u718a\u3002<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span>\u5c06\u66f4\u65b0\u540e\u7684\u4ee3\u7801\u90e8\u7f72\u5230\u7ec4\u7ec7\u4e2d\uff0c\u5e76\u68c0\u67e5\u641c\u7d22\u662f\u5426\u6210\u529f\uff0c\u65e0\u8bba\u7ed3\u679c\u5982\u4f55\u3002<\/span><\/li>\n<\/ol>\n<p><img decoding=\"async\" class=\"image image-block image-center\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/projects\/lwc-build-flexible-apps\/record-list\/images\/2fe1fb24eba7d9bc56a9bca65f3c5ab2_cjqwtsuem-001-a-0-x-4-v-83-rkc-0-fj.png\" alt=\"Ursus Park\u4e3b\u9875\u4e0a\u7684\u5df2\u8fc7\u6ee4\u718a\u5217\u8868\" width=\"624\" height=\"171\" \/><\/p>\n<p><span>\u8fd9\u5c31\u662f\u6b65\u9aa4\u3002\u6211\u4eec\u5df2\u7ecf\u4e86\u89e3\u4e86\u5982\u4f55\u4f7f\u7528\u547d\u4ee4\u5f0fApex\u7136\u540e\u4f7f\u7528\u6709\u7ebfApex\u5904\u7406\u8bb0\u5f55\u5217\u8868\uff0c\u5e76\u4e14\u5b66\u4e60\u4e86\u5982\u4f55\u5728Apex\u8c03\u7528\u4e2d\u4f20\u9012\u53c2\u6570\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ec4\u4ef6\u7684\u4ee3\u7801\u5df2\u663e\u7740\u589e\u957f\uff0c\u56e0\u6b64\u73b0\u5728\u8ba9\u6211\u4eec\u5c06\u5176\u5206\u4e3a\u5b50\u7ec4\u4ef6\u4ee5\u4f7f\u5176\u6613\u4e8e\u7ef4\u62a4\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u521b\u5efa\u718a\u5217\u8868\u7ec4\u4ef6 \u516c\u56ed\u62a4\u6797\u5458\u5e0c\u671b\u76f4\u63a5\u4ece\u5176\u4e3b\u9875\u4e0a\u770b\u5230\u718a\u7684\u76ee\u5f55\u3002\u60a8\u7684\u4efb\u52a1\u662f\u5b9e\u65bd\u8be5\u6e05\u5355\u3002 \u5728VS Code\u4e2d\uff0c\u53f3\u952e\u5355\u51fb &hellip; <a href=\"http:\/\/www.ponybai.com\/?p=3300\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u4f7f\u7528Lightning Web\u7ec4\u4ef6\u6784\u5efaBear-tracking\u5e94\u7528\u7a0b\u5e8f &#8211; \u5904\u7406\u8bb0\u5f55\u6e05\u5355<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3301,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"class_list":["post-3300","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lightning-webbear-tracking"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528Lightning Web\u7ec4\u4ef6\u6784\u5efaBear-tracking\u5e94\u7528\u7a0b\u5e8f - \u5904\u7406\u8bb0\u5f55\u6e05\u5355 - \u767d\u767d\u968f\u7b14<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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