{"id":3361,"date":"2021-01-13T20:20:53","date_gmt":"2021-01-13T12:20:53","guid":{"rendered":"http:\/\/www.salesforcecrm.cn\/?p=3361"},"modified":"2021-01-13T20:20:53","modified_gmt":"2021-01-13T12:20:53","slug":"%e4%bd%bf%e7%94%a8lightning-web-components%e5%bc%80%e6%ba%90%e6%9e%84%e5%bb%ba%e6%82%a8%e7%9a%84%e7%ac%ac%e4%b8%80%e4%b8%aa%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f-%e5%88%9b%e5%bb%ba%e4%bc%9a%e8%af%9d","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3361","title":{"rendered":"\u4f7f\u7528Lightning Web Components\u5f00\u6e90\u6784\u5efa\u60a8\u7684\u7b2c\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f – \u521b\u5efa\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606fWeb\u7ec4\u4ef6"},"content":{"rendered":"

\u521b\u5efa\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606fWeb\u7ec4\u4ef6<\/span><\/h1>\n
\n

\u5728\u6b64\u6b65\u9aa4\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Web\u7ec4\u4ef6\uff0c\u8be5\u7ec4\u4ef6\u663e\u793a\u7279\u5b9a\u4f1a\u8bae\u4f1a\u8bdd\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u60a8\u8fd8\u5b9e\u73b0\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5bfc\u822a\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u5141\u8bb8\u7528\u6237\u5728\u4f1a\u8bdd\u5217\u8868\u548c\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f\u4e4b\u95f4\u6765\u56de\u5bfc\u822a\u3002<\/span><\/p>\n

\u521b\u5efasessionDetails Web\u7ec4\u4ef6<\/span><\/div>\n

\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u521b\u5efaWeb\u7ec4\u4ef6\u7684JavaScript\u6587\u4ef6\u3002<\/span><\/p>\n

    \n
  1. \u5728\u73b0\u6709<\/span>my<\/code>\u6587\u4ef6\u5939\u4e0b\uff0c<\/span>\u521b\u5efa<\/span><\/strong>\u4e00\u4e2a\u540d\u4e3a\u7684\u65b0\u6587\u4ef6\u5939<\/span>sessionDetails<\/code>\u3002<\/span><\/li>\n
  2. \u5728<\/span>sessionDetails<\/code>\u6587\u4ef6\u5939\u4e2d\uff0c<\/span>\u521b\u5efa<\/span><\/strong>\u4e00\u4e2a\u540d\u4e3a\u7684\u65b0\u6587\u4ef6<\/span>sessionDetails.js<\/code>\u3002<\/span><\/li>\n
  3. \u5b9e\u73b0<\/span><\/strong>\u4e86<\/span>sessionDetails<\/code>\u7c7b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span>\n
    \n
    import<\/span> {<\/span> LightningElement<\/span>,<\/span> api }<\/span> from 'lwc'<\/span>;<\/span>\nimport<\/span> {<\/span> getSession }<\/span> from 'data\/sessionService'<\/span>;<\/span>\nexport default<\/span> class<\/span> SessionDetails<\/span> extends<\/span> LightningElement<\/span> {<\/span>\n  session;<\/span>\n  @api<\/span>\n  set sessionId<\/span>(<\/span>id)<\/span> {<\/span>\n    this<\/span>.<\/span>_sessionId =<\/span> id;<\/span>\n    this<\/span>.<\/span>session =<\/span> getSession<\/span>(<\/span>id)<\/span>;<\/span>\n  }<\/span>\n  get sessionId<\/span>(<\/span>)<\/span> {<\/span>\n    return<\/span> this<\/span>.<\/span>_sessionId;<\/span>\n  }<\/span>\n}<\/span><\/code><\/pre>\n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    \u6211\u4eec\u4f7f\u7528<\/span>@api<\/code>\u88c5\u9970\u5668\u5c06<\/span>sessionId<\/code>setter\u65b9\u6cd5\u5b9a\u4e49\u4e3apublic\u3002\u8fd9\u6837\uff0c\u60a8\u5c31\u53ef\u4ee5\u63d0\u4f9b\u6807\u7b7e<\/span>sessionId<\/code>\u00a0\u7684\u5c5e\u6027<\/span>my-session-details<\/code>\u3002\u5e26\u6ce8\u91ca\u7684\u5c5e\u6027<\/span>@api<\/code>\u662f\u53cd\u5e94\u6027\u7684\uff1a\u5f53\u5176\u503c\u66f4\u6539\u65f6\uff0c\u7ec4\u4ef6\u5c06\u81ea\u52a8\u91cd\u65b0\u5448\u73b0\u3002<\/span><\/li>\n
  4. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionDetails.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
    \u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u5728Web\u7ec4\u4ef6\u6a21\u677f\u4e2d\u521b\u5efa\u7528\u6237\u754c\u9762\u3002<\/span><\/p>\n
      \n
    1. \u5728<\/span>sessionDetails<\/code>\u6587\u4ef6\u5939\u4e2d\uff0c<\/span>\u521b\u5efa<\/span><\/strong>\u4e00\u4e2a\u540d\u4e3a\u7684\u65b0\u6587\u4ef6<\/span>sessionDetails.html<\/code>\u3002<\/span><\/li>\n
    2. \u5b9e\u65bd<\/span><\/strong>\u6a21\u677f\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span>\n
      \n
      <<\/span>template><\/span><\/span>\n  <<\/span>template if<\/span>:<\/span>true<\/span>=<\/span>{<\/span>session}<\/span>><\/span>\n    <<\/span>h2><\/span><\/span>{<\/span>session.<\/span>name}<\/span><<\/span>\/<\/span>h2><\/span>\n    <<\/span>p class<\/span>=<\/span>\"icon time\"<\/span>><\/span>{<\/span>session.<\/span>dateTime}<\/span><<\/span>\/<\/span>p><\/span>\n    <<\/span>p class<\/span>=<\/span>\"icon room\"<\/span>><\/span>{<\/span>session.<\/span>room}<\/span><<\/span>\/<\/span>p><\/span>\n    <<\/span>h3><\/span><\/span>Abstract<\/span><<\/span>\/<\/span>h3><\/span>\n    <<\/span>div class<\/span>=<\/span>\"abstract\"<\/span>><\/span>{<\/span>session.<\/span>description}<\/span><<\/span>\/<\/span>div><\/span>\n  <<\/span>\/<\/span>template><\/span>\n<<\/span>\/<\/span>template><\/span>\n<\/code><\/pre>\n
      \n
      <\/div>\n<\/div>\n<\/div>\n<\/li>\n
    3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionDetails.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
      \u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u521b\u5efaWeb\u7ec4\u4ef6\u7684CSS\u6587\u4ef6\uff0c\u4ee5\u786e\u4fdd\u4e00\u5207\u770b\u8d77\u6765\u90fd\u4e0d\u9519\u3002<\/span><\/p>\n
        \n
      1. \u5728<\/span>sessionDetails<\/code>\u6587\u4ef6\u5939\u4e2d\uff0c<\/span>\u521b\u5efa<\/span><\/strong>\u4e00\u4e2a\u540d\u4e3a\u7684\u65b0\u6587\u4ef6<\/span>sessionDetails.css<\/code>\u3002<\/span><\/li>\n
      2. \u5b9a\u4e49<\/span><\/strong>\u4ee5\u4e0b\u6837\u5f0f\uff1a<\/span>\n
        \n
        :<\/span>host {<\/span>\n  width:<\/span> 100<\/span>%<\/span>;<\/span>\n  margin:<\/span> 2<\/span>rem;<\/span>\n  color:<\/span> #080707<\/span>;<\/span>\n}<\/span>\np {<\/span>\n  margin:<\/span> 0<\/span>;<\/span>\n}<\/span>\n.<\/span>icon {<\/span>\n  color:<\/span> #039<\/span>be5;<\/span>\n  background-<\/span>repeat:<\/span> no-<\/span>repeat;<\/span>\n  background-<\/span>size:<\/span> contain;<\/span>\n  padding-<\/span>left:<\/span> 24<\/span>px;<\/span>\n}<\/span>\n.<\/span>icon.<\/span>time {<\/span>\n  background-<\/span>image:<\/span> url<\/span>(<\/span>https:<\/span>\/<\/span>\/<\/span>developer.<\/span>salesforce.<\/span>com\/<\/span>files\/<\/span>js-<\/span>dev\/<\/span>icons\/<\/span>clock.<\/span>svg)<\/span>;<\/span>\n  margin-<\/span>top:<\/span> .6<\/span>rem;<\/span>\n}<\/span>\n.<\/span>icon.<\/span>room {<\/span>\n  background-<\/span>image:<\/span> url<\/span>(<\/span>https:<\/span>\/<\/span>\/<\/span>developer.<\/span>salesforce.<\/span>com\/<\/span>files\/<\/span>js-<\/span>dev\/<\/span>icons\/<\/span>location.<\/span>svg)<\/span>;<\/span>\n  margin-<\/span>top:<\/span> .4<\/span>rem;<\/span>\n}<\/span>\nh2 {<\/span>\n  font-<\/span>weight:<\/span> 600<\/span>;<\/span>\n  font-<\/span>size:<\/span> 1.4<\/span>rem;<\/span>\n}<\/span>\nh2 a,<\/span> h2 a:<\/span>visited {<\/span>\n  color:<\/span> #039<\/span>be5;<\/span>\n  text-<\/span>decoration:<\/span> none;<\/span>\n}<\/span>\nh2 a:<\/span>hover {<\/span>\n  color:<\/span> #017<\/span>bb7;<\/span>\n}<\/span>\nh3 {<\/span>\n  font-<\/span>weight:<\/span> bold;<\/span>\n  font-<\/span>size:<\/span> 1.1<\/span>rem;<\/span>\n  margin:<\/span> 1.5<\/span>rem 0<\/span> 0.5<\/span>rem 0<\/span>;<\/span>\n}<\/span>\n.<\/span>list-<\/span>wrapper {<\/span>\n  display:<\/span> flex;<\/span>\n  flex-<\/span>direction:<\/span> column;<\/span>\n}<\/span>\n.<\/span>speaker-<\/span>list {<\/span>\n  display:<\/span> flex;<\/span>\n  flex-<\/span>direction:<\/span> row;<\/span>\n  flex-<\/span>wrap:<\/span> wrap;<\/span>\n  margin:<\/span> 0<\/span> -<\/span>0.5<\/span>rem;<\/span>\n}<\/span><\/code><\/pre>\n
        \n
        <\/div>\n<\/div>\n<\/div>\n<\/li>\n
      3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionDetails.css<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
        \u800c\u5df2\uff01\u60a8\u521b\u5efa\u4e86\u4e00\u4e2a\u663e\u793a\u4f1a\u8bae\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f\u7684Web\u7ec4\u4ef6\u3002<\/span><\/p>\n
        \u5c06\u7ec4\u4ef6\u6dfb\u52a0\u5230\u5e94\u7528\u7a0b\u5e8f<\/span><\/div>\n
        \u8981\u67e5\u770b\u5b83\u7684\u5b9e\u9645\u6548\u679c\uff0c\u60a8\u9700\u8981\u5c06\u5176\u6dfb\u52a0\u5230\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002<\/span><\/p>\n
          \n
        1. \u6253\u5f00<\/span><\/strong>\u4e86<\/span>app.html<\/code>\u8be5\u6587\u4ef6<\/span>app<\/code>\u7684\u6587\u4ef6\u5939\u3002<\/span><\/li>\n
        2. \u5728\u6807\u7b7e\u4e4b\u540e\u6dfb\u52a0\u4ee5\u4e0b<\/span><my-session-list><\/my-session-list><\/code>\u6807\u7b7e\uff1a<\/span>\n
          \n
          <<\/span>my-<\/span>session-<\/span>details session-<\/span>id=<\/span>{<\/span>sessionId}<\/span>><\/span><<\/span>\/<\/span>my-<\/span>session-<\/span>details><\/span><\/code><\/pre>\n
          \n
          <\/div>\n<\/div>\n<\/div>\n<\/li>\n
        3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>app.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
        4. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>app.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
        5. \u5728App\u7c7b\u5b9a\u4e49\u4e2d\u5b9a\u4e49<\/strong>\u4e00\u4e2a\u5c5e\u6027\uff1a<\/span>\n
          \n
          import<\/span> {<\/span> LightningElement<\/span> }<\/span> from 'lwc'<\/span>;<\/span>\nexport default<\/span> class<\/span> App<\/span> extends<\/span> LightningElement<\/span> {<\/span>\n  sessionId;<\/span>\n}<\/span><\/code><\/pre>\n
          \n
          <\/div>\n<\/div>\n<\/div>\n<\/li>\n
        6. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>app.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
          \u8fd4\u56de\u6d4f\u89c8\u5668\uff0c\u8bf7\u6ce8\u610f\u8be5<\/span>sessionDetails<\/code>\u7ec4\u4ef6\u672a\u51fa\u73b0\u3002\u8fd9\u662f\u56e0\u4e3a<\/span>sessionId<\/code>\u60a8\u521a\u521a\u5b9a\u4e49\u7684\u00a0\u5c5e\u6027<\/span>app.js<\/code>\u5c1a\u672a\u6307\u5411\u5b9e\u9645\u7684sessionId\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5e94\u7528\u7a0b\u5e8f\u4e0d\u77e5\u9053\u8981\u663e\u793a\u54ea\u4e2a\u4f1a\u8bdd\u3002\u8fd9\u5c31\u63d0\u51fa\u4e86\u4e00\u4e2a\u5f88\u597d\u7684\u95ee\u9898\uff1a<\/span>sessionDetails<\/code>\u00a0\u7ec4\u4ef6\u5e94\u5b9e\u9645\u663e\u793a\u54ea\u4e2a\u4f1a\u8bdd\uff1f\u7b54\u6848\u662f\uff1a\u7528\u6237\u5728sessionList\u7ec4\u4ef6\u4e2d\u5355\u51fb\u7684\u4f1a\u8bdd\uff01<\/span>sessionList<\/code>\u7ec4\u4ef6\u5982\u4f55\u901a\u77e5\u5e94\u7528\u7a0b\u5e8f\u5355\u51fb\u4e86\u7279\u5b9a\u4f1a\u8bdd\uff1f\u901a\u8fc7\u8c03\u5ea6\u81ea\u5b9a\u4e49DOM\u4e8b\u4ef6\u3002<\/span><\/p>\n
          \u4e00\u8d77\u5e03\u7ebf<\/span><\/div>\n
          \u73b0\u5728\uff0c\u60a8\u5df2\u7ecf\u521b\u5efa\u4e86\u6240\u6709\u4e0d\u540c\u7684\u7ec4\u4ef6\uff0c\u60a8\u9700\u8981\u5728\u5e94\u7528\u7a0b\u5e8f\u7684\u4e0d\u540c\u65b9\u9762\u663e\u793a\u5b83\u4eec\uff0c\u5e76\u786e\u4fdd\u4e0d\u540c\u7684\u7ec4\u4ef6\u76f8\u4e92\u53cd\u5e94\u3002\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u4fee\u6539<\/span>sessionList<\/code>\u7ec4\u4ef6\uff0c\u4f7f\u5176\u5728\u5355\u51fb\u4f1a\u8bdd\u65f6\u89e6\u53d1\u4e00\u4e2a\u4e8b\u4ef6\u3002<\/span><\/p>\n
            \n
          1. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>sessionList.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
          2. \u5c06\u4ee5\u4e0b\u5c5e\u6027\u6dfb\u52a0<\/strong>\u5230<\/span><a><\/code>\u6807\u7b7e\uff1a<\/span>data-index={index} onclick={handleSessionClick}<\/code>\u5b83\u770b\u8d77\u6765\u50cf\u00a0<\/span>\n
            \n
            <<\/span>a key=<\/span>{<\/span>session.<\/span>id}<\/span> class<\/span>=<\/span>\"session\"<\/span> data-<\/span>index=<\/span>{<\/span>index}<\/span> onclick=<\/span>{<\/span>handleSessionClick}<\/span>><\/span><\/code><\/pre>\n
            \n
            <\/div>\n<\/div>\n<\/div>\n<\/li>\n
          3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionList.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
          4. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>sessionList.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
          5. \u5728<\/span>handleSessionClick<\/code>\u51fd\u6570<\/span>SessionList<\/code>\u4e4b\u540e\uff0c\u5c06\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u6dfb\u52a0<\/strong>\u5230\u7c7b\u4e2d<\/span>handleSearchKeyInput<\/code>\uff1a<\/span>\n
            \n
            handleSessionClick<\/span>(<\/span>event)<\/span> {<\/span>\n  const<\/span> index =<\/span> event.<\/span>currentTarget.<\/span>dataset.<\/span>index;<\/span>\n  const<\/span> navigateEvent =<\/span> new<\/span> CustomEvent<\/span>(<\/span>'navigate'<\/span>,<\/span> {<\/span>\n    detail:<\/span> {<\/span>\n      sessionId:<\/span> this<\/span>.<\/span>sessions[<\/span>index]<\/span>.<\/span>id\n    }<\/span>\n  }<\/span>)<\/span>;<\/span>\n  this<\/span>.<\/span>dispatchEvent<\/span>(<\/span>navigateEvent)<\/span>;<\/span>\n}<\/span><\/code><\/pre>\n
            \n
            <\/div>\n<\/div>\n<\/div>\n<\/li>\n
          6. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionList.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
            \u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u5728<\/span>app<\/code>Web\u7ec4\u4ef6\u4e2d\u76d1\u542c\u8be5\u4e8b\u4ef6\u3002<\/span><\/p>\n
              \n
            1. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>app.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
            2. onnavigate<\/code>\u5728<\/span>my-session-list<\/code>\u6807\u7b7e\u4e0a\u6dfb\u52a0<\/strong>\u4e00\u4e2a\u5c5e\u6027\uff1a<\/span>\n
              \n
              <<\/span>my-<\/span>session-<\/span>list onnavigate=<\/span>{<\/span>handleNavigate}<\/span>><\/span><<\/span>\/<\/span>my-<\/span>session-<\/span>list><\/span><\/code><\/pre>\n
              \n
              <\/div>\n<\/div>\n<\/div>\n<\/li>\n
            3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>app.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
            4. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>app.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
            5. \u5728<\/span>handleNavigate<\/code>\u4e4b\u540e\u6dfb\u52a0<\/strong>\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f<\/span>sessionId;<\/code>\uff1a<\/span>\n
              \n
              handleNavigate<\/span>(<\/span>event)<\/span> {<\/span>\n  this<\/span>.<\/span>sessionId =<\/span> event.<\/span>detail.<\/span>sessionId;<\/span>\n}<\/span><\/code><\/pre>\n
              \n
              <\/div>\n<\/div>\n<\/div>\n<\/li>\n
            6. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>app.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
              \u8fd4\u56de\u6d4f\u89c8\u5668\uff0c\u7136\u540e\u5355\u51fb\u5176\u4e2d\u4e00\u4e2a\u4f1a\u8bdd\u3002\u73b0\u5728\uff0c\u8be5\u4f1a\u8bdd\u7684\u8be6\u7ec6\u4fe1\u606f\u5e94\u51fa\u73b0\u5728\u5217\u8868\u4e4b\u540e\u3002\u00a0<\/span><\/p>\n
              \"\u5728\u4f1a\u8bdd\u5217\u8868\u4e0b\u5448\u73b0\u5bf9\u8bdd\u4fe1\u606f\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\"<\/p>\n
              \u4e00\u5207\u6b63\u5e38\uff0c\u4f46\u662f\u6eda\u52a8\u5230\u5217\u8868\u5e95\u90e8\u4ee5\u67e5\u770b\u8be6\u7ec6\u4fe1\u606f\u5e76\u4e0d\u662f\u5f88\u597d\u7684\u7528\u6237\u4f53\u9a8c\u3002\u60a8\u53ef\u4ee5\u5728\u5217\u8868\u7684\u53f3\u4fa7\u663e\u793a\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f46\u8fd9\u53ef\u80fd\u4e0d\u9002\u7528\u4e8e\u79fb\u52a8\u8bbe\u5907\u3002\u5728\u4e0b\u4e00\u90e8\u5206\u4e2d\uff0c\u60a8\u5c06\u5b9e\u73b0\u4e00\u4e2a\u57fa\u672c\u7684\u5bfc\u822a\u7cfb\u7edf\uff0c\u8be5\u7cfb\u7edf\u5141\u8bb8\u7528\u6237\u5bfc\u822a\u5230\u4e0d\u540c\u7684\u89c6\u56fe\u3002<\/span><\/p>\n
              \u6dfb\u52a0\u5bfc\u822a<\/span><\/div>\n
              \u5bfc\u822a\u662f\u5355\u9875\u5e94\u7528\u7a0b\u5e8f\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u5728\u6b64\u9879\u76ee\u4e2d\uff0c\u60a8\u5c06\u4e3a\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u4e24\u4e2a\u72b6\u6001\uff08\u201c\u5217\u8868\u201d\u548c\u201c\u8be6\u7ec6\u4fe1\u606f\u201d\uff09\u5b9e\u73b0\u6700\u5c0f\u5bfc\u822a\u7cfb\u7edf\uff0c\u5e76\u4f7f\u7528\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u5728\u8fd9\u4e9b\u72b6\u6001\u4e4b\u95f4\u8fdb\u884c\u5bfc\u822a\u3002<\/span><\/p>\n
                \n
              1. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>app.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
              2. \u58f0\u660e<\/span><\/strong>\u4e00\u4e2a<\/span>state<\/code>\u4ea7\u6743\u540e<\/span>sessionId;<\/code>\uff1a<\/span>\n
                \n
                state =<\/span> 'list'<\/span>;<\/span><\/code><\/pre>\n
                \n
                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
              3. \u4fee\u6539<\/span><\/strong>\u7684<\/span>handleNavigate<\/code>\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u66f4\u6539\u5e94\u7528\u7a0b\u5e8f\u7684\u57fa\u7840\u4e0a\uff0c\u81ea\u5b9a\u4e49\u5bfc\u822a\u4e8b\u4ef6\u503c\u7684\u72b6\u6001\u3002<\/span>\n
                \n
                handleNavigate<\/span>(<\/span>event)<\/span> {<\/span>\n  this<\/span>.<\/span>state =<\/span> event.<\/span>detail.<\/span>state;<\/span>\n  this<\/span>.<\/span>sessionId =<\/span> event.<\/span>detail.<\/span>sessionId;<\/span>\n}<\/span><\/code><\/pre>\n
                \n
                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
              4. \u6dfb\u52a0<\/span><\/strong>\u4e24\u4e2a\u53ef\u4ee5\u5728\u7ec4\u4ef6\u6a21\u677f\u4e2d\u4f7f\u7528\u7684getter\u51fd\u6570\uff0c\u4ee5\u68c0\u67e5\u5e94\u7528\u7a0b\u5e8f\u7684\u5f53\u524d\u72b6\u6001\u3002<\/span>\n
                \n
                get isStateList<\/span>(<\/span>)<\/span> {<\/span>\n  return<\/span> this<\/span>.<\/span>state ==<\/span>=<\/span> 'list'<\/span>;<\/span>\n}<\/span>\nget isStateDetails<\/span>(<\/span>)<\/span> {<\/span>\n  return<\/span> this<\/span>.<\/span>state ==<\/span>=<\/span> 'details'<\/span>;<\/span>\n}<\/span><\/code><\/pre>\n
                \n
                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
              5. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>app.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
              6. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>app.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
              7. \u88f9<\/span><\/strong><my-session-list><\/code>\u5728\u4e00\u4e2a<\/span>if:true<\/code>\u6307\u4ee4\u65f6\uff0c\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u662f\u201c\u6e05\u5355\u201d\uff0c\u53ea\u663e\u793a\u5b83\uff1a<\/span>\n
                \n
                <<\/span>template if<\/span>:<\/span>true<\/span>=<\/span>{<\/span>isStateList}<\/span>><\/span>\n  <<\/span>my-<\/span>session-<\/span>list onnavigate=<\/span>{<\/span>handleNavigate}<\/span>><\/span>\n  <<\/span>\/<\/span>my-<\/span>session-<\/span>list><\/span>\n<<\/span>\/<\/span>template><\/span>\n<\/code><\/pre>\n
                \n
                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
              8. \u88f9<\/span><\/strong><my-session-details><\/code>\u5728\u4e00\u4e2a<\/span>if:true<\/code>\u6307\u4ee4\u65f6\uff0c\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u662f\u201c\u7ec6\u8282\u201d\uff0c\u53ea\u663e\u793a\u5b83\uff1a<\/span>\n
                \n
                <<\/span>template if<\/span>:<\/span>true<\/span>=<\/span>{<\/span>isStateDetails}<\/span>><\/span>\n  <<\/span>my-<\/span>session-<\/span>details session-<\/span>id=<\/span>{<\/span>sessionId}<\/span>><\/span>\n  <<\/span>\/<\/span>my-<\/span>session-<\/span>details><\/span>\n<<\/span>\/<\/span>template><\/span><\/code><\/pre>\n
                \n
                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
              9. onnavigate<\/code>\u5728<\/span>my-session-details<\/code>\u6807\u7b7e\u4e0a\u6dfb\u52a0<\/strong>\u4e00\u4e2a\u5c5e\u6027\uff1a<\/span>\n
                \n
                <<\/span>my-<\/span>session-<\/span>details onnavigate=<\/span>{<\/span>handleNavigate}<\/span> session-<\/span>id=<\/span>{<\/span>sessionId}<\/span>><\/span>\n<<\/span>\/<\/span>my-<\/span>session-<\/span>details><\/span><\/code><\/pre>\n
                \n
                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
              10. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>app.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                \u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u786e\u4fdd\u9009\u62e9\u4f1a\u8bdd\u65f6\u66f4\u6539\u72b6\u6001\u3002<\/span><\/p>\n
                  \n
                1. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>sessionList.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
                2. \u5c06<\/span><\/strong>handleSessionClick<\/code>\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\u66ff\u6362<\/strong>\u4e3a\uff1a<\/span>\n
                  \n
                  handleSessionClick<\/span>(<\/span>event)<\/span> {<\/span>\n  const<\/span> index =<\/span> event.<\/span>currentTarget.<\/span>dataset.<\/span>index;<\/span>\n  const<\/span> navigateEvent =<\/span> new<\/span> CustomEvent<\/span>(<\/span>'navigate'<\/span>,<\/span> {<\/span>\n    detail:<\/span> {<\/span>\n      state:<\/span> 'details'<\/span>,<\/span>\n      sessionId:<\/span> this<\/span>.<\/span>sessions[<\/span>index]<\/span>.<\/span>id\n    }<\/span>\n  }<\/span>)<\/span>;<\/span>\n  this<\/span>.<\/span>dispatchEvent<\/span>(<\/span>navigateEvent)<\/span>;<\/span>\n}<\/span><\/code><\/pre>\n
                  \n
                  <\/div>\n<\/div>\n<\/div>\n<\/li>\n
                3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionList.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                  \u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u786e\u4fdd\u7528\u6237\u53ef\u4ee5\u8fd4\u56de\u5230\u4f1a\u8bdd\u5217\u8868\u3002<\/span><\/p>\n
                    \n
                  1. \n
                      \n
                    1. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>sessionDetails.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
                    2. \u5c06\u4f1a\u8bdd<\/span><\/strong>\u6807\u9898\u66ff\u6362<\/strong>\u4e3a<\/span><h2>{session.name}<\/h2><\/code>\uff1a<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
                      \n
                      \n
                      <<\/span>h2><\/span><\/span><<\/span>a href=<\/span>\"#\"<\/span> onclick=<\/span>{<\/span>handleSessionsClick}<\/span>><\/span>Sessions<\/span><<\/span>\/<\/span>a><\/span> &<\/span>gt;<\/span> {<\/span>session.<\/span>name}<\/span><<\/span>\/<\/span>h2><\/span><\/code><\/pre>\n
                      \n
                      <\/div>\n<\/div>\n<\/div>\n<\/div>\n
                        \n
                      1. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionDetails.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
                      2. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>sessionDetails.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
                      3. \u5c06<\/span>handleSessionsClick<\/code>\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u6dfb\u52a0<\/strong>\u5230<\/span>sessionDetails<\/code>\u7c7b\u4e2d\uff0c\u7d27\u63a5\u5728<\/span>sessionId<\/code>getter\u51fd\u6570\u4e4b\u540e\uff1a<\/span>\n
                        \n
                        handleSessionsClick<\/span>(<\/span>)<\/span> {<\/span>\n  const<\/span> navigateEvent =<\/span> new<\/span> CustomEvent<\/span>(<\/span>'navigate'<\/span>,<\/span> {<\/span>\n    detail:<\/span> {<\/span>\n      state:<\/span> 'list'<\/span>\n    }<\/span>\n  }<\/span>)<\/span>;<\/span>\n  this<\/span>.<\/span>dispatchEvent<\/span>(<\/span>navigateEvent)<\/span>;<\/span>\n}<\/span>\n<\/code><\/pre>\n
                        \n
                        <\/div>\n<\/div>\n<\/div>\n<\/li>\n
                      4. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionDetails.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                        \u8fd4\u56de\u6d4f\u89c8\u5668\uff0c\u7136\u540e\u5355\u51fb\u5176\u4e2d\u4e00\u4e2a\u4f1a\u8bdd\u3002\u73b0\u5728\uff0c\u4f1a\u8bdd\u5217\u8868\u663e\u793a\u5355\u51fb\u7684\u4f1a\u8bdd\u7684\u8be6\u7ec6\u4fe1\u606f\u89c6\u56fe\u3002\u5982\u679c\u5355\u51fb\u4f1a\u8bdd\u6807\u9898\u65c1\u8fb9\u7684\u201c\u4f1a\u8bdd\u201d\u94fe\u63a5\uff0c\u5219\u8fd4\u56de\u5230\u4f1a\u8bdd\u5217\u8868\u3002<\/span><\/p>\n
                        \"Web\u7ec4\u4ef6\u4ecb\u7ecd\u7684\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f\u89c6\u56fe\"<\/p>\n
                        \u5f88\u597d\uff01\u4f1a\u8bae\u4e0e\u4f1a\u8005\u5355\u51fb\u7279\u5b9a\u7684\u4f1a\u8bae\u65f6\uff0c\u53ef\u4ee5\u67e5\u770b\u4f1a\u8bae\u5217\u8868\u5e76\u5bfc\u822a\u5230\u8be6\u7ec6\u4fe1\u606f\u89c6\u56fe\u3002\u4e3a\u4e86\u5c06\u60a8\u5b66\u5230\u7684\u4e1c\u897f\u4ed8\u8bf8\u5b9e\u8df5\uff0c\u521b\u5efa\u4e00\u4e2a\u6700\u7ec8\u7684Web\u7ec4\u4ef6\uff0c\u8be5\u7ec4\u4ef6\u5728\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f\u89c6\u56fe\u4e0a\u663e\u793a\u626c\u58f0\u5668\u5361\u3002<\/span><\/p>\n
                        \u6dfb\u52a0\u626c\u58f0\u5668\u5361<\/span><\/div>\n
                        \u9996\u5148\uff0c\u8ba9\u6211\u4eec\u521b\u5efaWeb\u7ec4\u4ef6\u7684JavaScript\u6587\u4ef6\u3002<\/span><\/p>\n
                          \n
                        1. \u5728\u73b0\u6709<\/span>my<\/code>\u6587\u4ef6\u5939\u4e0b\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u7684\u65b0\u6587\u4ef6\u5939<\/span>speakerCard<\/code>\u3002<\/span><\/li>\n
                        2. \u5728<\/span>speakerCard<\/code>\u6587\u4ef6\u5939\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u7684\u65b0\u6587\u4ef6<\/span>speakerCard.js<\/code>\u3002<\/span><\/li>\n
                        3. \u5b9e\u73b0<\/span>SpeakerCard<\/code>\u8be5\u7c7b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span>\n
                          \n
                          import<\/span> {<\/span> LightningElement<\/span>,<\/span> api }<\/span> from 'lwc'<\/span>;<\/span>\n  export default<\/span> class<\/span> SpeakerCard<\/span> extends<\/span> LightningElement<\/span> {<\/span>\n    @api<\/span> speaker;<\/span>\n}<\/span><\/code><\/pre>\n
                          \n
                          <\/div>\n<\/div>\n<\/div>\n<\/li>\n
                        4. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>speakerCard.js<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                          \u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u521b\u5efaWeb\u7ec4\u4ef6\u7684HTML\u6a21\u677f\u3002<\/span><\/p>\n
                            \n
                          1. \u5728<\/span>speakerCard<\/code>\u6587\u4ef6\u5939\u4e2d\uff0c<\/span>\u521b\u5efa<\/span><\/strong>\u4e00\u4e2a\u540d\u4e3a\u7684\u6587\u4ef6<\/span>speakerCard.html<\/code>\u3002<\/span><\/li>\n
                          2. \u5b9e\u65bd<\/span><\/strong>\u6a21\u677f\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span>\n
                            \n
                            <<\/span>template><\/span><\/span>\n  <<\/span>div class<\/span>=<\/span>\"card\"<\/span>><\/span>\n    <<\/span>div class<\/span>=<\/span>\"header\"<\/span>><\/span>\n      <<\/span>img src=<\/span>{<\/span>speaker.<\/span>pictureUrl}<\/span> alt=<\/span>\"Speaker picture\"<\/span>><\/span>\n      <<\/span>div><\/span><\/span>\n        <<\/span>p class<\/span>=<\/span>\"title\"<\/span>><\/span>{<\/span>speaker.<\/span>name}<\/span><<\/span>\/<\/span>p><\/span>\n        <<\/span>p class<\/span>=<\/span>\"icon email\"<\/span>><\/span>{<\/span>speaker.<\/span>email}<\/span><<\/span>\/<\/span>p><\/span>\n      <<\/span>\/<\/span>div><\/span>\n    <<\/span>\/<\/span>div><\/span>\n    {<\/span>speaker.<\/span>bio}<\/span>\n  <<\/span>\/<\/span>div><\/span>\n<<\/span>\/<\/span>template><\/span><\/code><\/pre>\n
                            \n
                            <\/div>\n<\/div>\n<\/div>\n<\/li>\n
                          3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>speakerCard.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                            \u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u6dfb\u52a0\u4e00\u4e9b\u6837\u5f0f\u4ee5\u786e\u4fdd\u4e00\u5207\u90fd\u770b\u8d77\u6765\u4e0d\u9519\u3002<\/span><\/p>\n
                              \n
                            1. \u5728<\/span>speakerCard<\/code>\u6587\u4ef6\u5939\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a\u7684\u6587\u4ef6<\/span>speakerCard.css<\/code>\u3002<\/span><\/li>\n
                            2. \u6dfb\u52a0<\/span><\/strong>\u4ee5\u4e0b\u6837\u5f0f\uff1a<\/span>\n
                              \n
                              :<\/span>host {<\/span>\n  margin:<\/span> 0.5<\/span>rem;<\/span>\n  flex:<\/span> 1<\/span>;<\/span>\n  color:<\/span> #080707<\/span>;<\/span>\n}<\/span>\n.<\/span>card {<\/span>\n  border:<\/span> 1<\/span>px solid #dddbda;<\/span>\n  border-<\/span>radius:<\/span> 0.25<\/span>rem;<\/span>\n  padding:<\/span> 1<\/span>rem;<\/span>\n}<\/span>\n.<\/span>card .<\/span>header {<\/span>\n  display:<\/span> flex;<\/span>\n  align-<\/span>items:<\/span> center;<\/span>\n  margin-<\/span>bottom:<\/span> 1<\/span>rem;<\/span>\n}<\/span>\n.<\/span>card img {<\/span>\n  border-<\/span>radius:<\/span> 50<\/span>%<\/span>;<\/span>\n  height:<\/span> 5<\/span>rem;<\/span>\n  margin-<\/span>right:<\/span> 1<\/span>rem;<\/span>\n}<\/span>\n.<\/span>card .<\/span>title {<\/span>\n  font-<\/span>weight:<\/span> 600<\/span>;<\/span>\n}<\/span>\n.<\/span>card .<\/span>icon {<\/span>\n  color:<\/span> #039<\/span>be5;<\/span>\n  background-<\/span>repeat:<\/span> no-<\/span>repeat;<\/span>\n  background-<\/span>size:<\/span> contain;<\/span>\n  padding-<\/span>left:<\/span> 24<\/span>px;<\/span>\n}<\/span>\n.<\/span>card .<\/span>icon.<\/span>email {<\/span>\n  background-<\/span>image:<\/span> url<\/span>(<\/span>https:<\/span>\/<\/span>\/<\/span>developer.<\/span>salesforce.<\/span>com\/<\/span>files\/<\/span>js-<\/span>dev\/<\/span>icons\/<\/span>email.<\/span>svg)<\/span>;<\/span>\n  margin-<\/span>top:<\/span> 0.4<\/span>rem;<\/span>\n}<\/span>\np {<\/span>\n  margin:<\/span> 0<\/span>;<\/span>\n}<\/span><\/code><\/pre>\n
                              \n
                              <\/div>\n<\/div>\n<\/div>\n<\/li>\n
                            3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>speakerCard.css<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                              \u5c06\u53d1\u8a00\u4eba\u6dfb\u52a0\u5230\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f<\/span><\/div>\n
                              \u6700\u540e\uff0c\u8ba9\u6211\u4eec\u5c06\u626c\u58f0\u5668\u5361\u6dfb\u52a0\u5230\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f\u89c6\u56fe\u4e2d\u3002<\/span><\/p>\n
                                \n
                              1. \u6253\u5f00<\/span><\/strong>\u8be5<\/span>sessionDetails.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n
                              2. \u5728<\/span>abstract<\/code>div\u4e4b\u540e\u6dfb\u52a0<\/strong>\u4ee5\u4e0b\u6807\u8bb0\uff1a<\/span>\n
                                \n
                                <<\/span>h3><\/span><\/span>Speakers<\/span><<\/span>\/<\/span>h3><\/span>\n  <<\/span>div class<\/span>=<\/span>\"speaker-list\"<\/span>><\/span>\n    <<\/span>template if<\/span>:<\/span>true<\/span>=<\/span>{<\/span>session.<\/span>speakers}<\/span>><\/span>\n      <<\/span>template for<\/span>:<\/span>each=<\/span>{<\/span>session.<\/span>speakers}<\/span> for<\/span>:<\/span>item=<\/span>\"speaker\"<\/span>><\/span>\n        <<\/span>my-<\/span>speaker-<\/span>card key=<\/span>{<\/span>speaker.<\/span>id}<\/span> speaker=<\/span>{<\/span>speaker}<\/span>><\/span>\n        <<\/span>\/<\/span>my-<\/span>speaker-<\/span>card><\/span>\n    <<\/span>\/<\/span>template><\/span>\n  <<\/span>\/<\/span>template><\/span>\n<<\/span>\/<\/span>div><\/span><\/code><\/pre>\n
                                \n
                                <\/div>\n<\/div>\n<\/div>\n<\/li>\n
                              3. \u4fdd\u5b58<\/span><\/strong>\u7684<\/span>sessionDetails.html<\/code>\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n
                                \u8fd4\u56de\u6d4f\u89c8\u5668\u7a97\u53e3\uff0c\u7136\u540e\u5355\u51fb\u5217\u8868\u4e2d\u7684\u4f1a\u8bdd\u3002\u4f1a\u8bdd\u8be6\u7ec6\u4fe1\u606f\u89c6\u56fe\u73b0\u5728\u5e94\u8be5\u770b\u8d77\u6765\u50cf\u8fd9\u6837\uff0c\u5305\u62ec\u626c\u58f0\u5668\u5361\u3002<\/span><\/p>\n
                                \"<\/p>\n
                                \u606d\u559c\uff0c\u60a8\u5df2\u7ecf\u6210\u529f\u521b\u5efa\u4e86\u7b2c\u4e00\u4e2aLightning Web Component\u5f00\u6e90\u5e94\u7528\u7a0b\u5e8f\uff01\u8bf7\u67e5\u770b\u672c\u7cfb\u5217\u7684\u4e0b\u4e00\u4e2a\u9879\u76ee\uff0c\u5728\u8be5\u9879\u76ee\u4e2d\u60a8\u53ef\u4ee5\u4fee\u6539\u5e94\u7528\u7a0b\u5e8f\u4ee5\u4f7f\u7528REST\u670d\u52a1\u4eceSalesforce\u83b7\u53d6\u4f1a\u8bae\u6570\u636e\u3002\u60a8\u65e0\u9700\u4e86\u89e3Salesforce\u5373\u53ef\u6267\u884c\u4e0b\u4e00\u4e2a\u9879\u76ee\u3002\u6211\u4eec\u5c06\u6307\u5bfc\u60a8\u5b8c\u6210\u6240\u6709\u6b65\u9aa4\u3002<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
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