AngularJS初始化静态模板详解

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我是靠谱客的博主超帅月饼，这篇文章主要介绍AngularJS初始化静态模板详解，现在分享给大家，希望可以做个参考。

AngularJS可以通过ng-app来自动初始化模块，也可以通过angular.bootstrap(document, [module])手动启动应用，不管用哪种方法，应用启动后，动态往dom树里面添加的dom元素，无法执行angular指令，即无法通过ng-model、ng-click给动态添加的dom元素绑定数据和事件，怎么办？

动态添加dom元素的场景非常常见，如点击某页面上修改用户资料的按钮，发送ajax请求去查询用户资料，然后通过模板引擎将事先写在页面里的静态模板编译成HTML字符串，最后将HTML字符串append到页面显示出来，一般情况下我们会这样做：

复制代码

<!DOCTYPE html>
<html ng-app="app">
<head>
  <title>demo</title>
  <meta charset="utf-8"/>
  <script src="http://cdn.bootcss.com/jquery/3.0.0-alpha1/jquery.min.js"></script>
  <script id="others_angular_103" type="text/javascript" class="library" src="http://sandbox.runjs.cn/js/sandbox/other/angular.min.js"></script>
  <style>
    .contani{
      width: 100%;
      height: 300px;
      border: 1px solid red;
    }
  </style>
</head>
<body ng-controller="myCtrl">
<script>
  var app = angular.module('app',[]);
  app.controller('myCtrl', ['$scope','$compile',function(scope,$compile){
    scope.valchange = function(){
      console.log('value change')
    }
    scope.edit = function(){
      //假设这是ajax返回的数据
      scope.username = 'wangmeijian';
      scope.password = '000000';
      $(".contani").html(myTmpl.innerHTML);
    }
  }])
</script>
<button ng-click="edit()">修改资料</button>
<div class="contani"></div>
<script type="text/html" id="myTmpl">
  <form>
    用户名：<input type="text" ng-model="username" />
    密码：<input type="text" ng-model="password" />
  </form>
</script>
</body>
</html>

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<!DOCTYPE html>
<html ng-app="app">
<head>
  <title>demo</title>
  <meta charset="utf-8"/>
  <script src="http://cdn.bootcss.com/jquery/3.0.0-alpha1/jquery.min.js"></script>
  <script id="others_angular_103" type="text/javascript" class="library" src="http://sandbox.runjs.cn/js/sandbox/other/angular.min.js"></script>
  <style>
    .contani{
      width: 100%;
      height: 300px;
      border: 1px solid red;
    }
  </style>
</head>
<body ng-controller="myCtrl">
<script>
  var app = angular.module('app',[]);
  app.controller('myCtrl', ['$scope','$compile',function(scope,$compile){
    scope.valchange = function(){
      console.log('value change')
    }
    scope.edit = function(){
      //假设这是ajax返回的数据
      scope.username = 'wangmeijian';
      scope.password = '000000';
      $(".contani").html(myTmpl.innerHTML);
    }
  }])
</script>
<button ng-click="edit()">修改资料</button>
<div class="contani"></div>
<script type="text/html" id="myTmpl">
  <form>
    用户名：<input type="text" ng-model="username" />
    密码：<input type="text" ng-model="password" />
  </form>
</script>
</body>
</html>

点击修改资料按钮，新插入的dom元素并没有绑定ajax返回的数据，这是因为点击按钮前angular已经初始化完毕了，解决办法当然不是再初始化一次，而是单独使用$compile编译静态模板的HTML，然后再插入dom树中

复制代码

<!DOCTYPE html>
<html ng-app="app">
<head>
  <title>demo</title>
  <meta charset="utf-8"/>
  <script src="http://cdn.bootcss.com/jquery/3.0.0-alpha1/jquery.min.js"></script>
  <script id="others_angular_103" type="text/javascript" class="library" src="http://sandbox.runjs.cn/js/sandbox/other/angular.min.js"></script>
  <style>
    .contani{
      width: 100%;
      height: 300px;
      border: 1px solid red;
    }
  </style>
</head>
<body ng-controller="myCtrl">
<script>
  var app = angular.module('app',[]);
  app.controller('myCtrl', ['$scope','$compile',function(scope,$compile){
    scope.valchange = function(){
      console.log('value change')
    }
    scope.edit = function(){
      //假设这是ajax返回的数据
      scope.username = 'wangmeijian';
      scope.password = '000000';
      //$(".contani").html(myTmpl.innerHTML);
      $(".contani").append( $compile(myTmpl.innerHTML)(scope) )
    }
  }])
</script>
<button ng-click="edit()">修改资料</button>
<div class="contani"></div>
<script type="text/html" id="myTmpl">
  <form>
    用户名：<input type="text" ng-model="username" ng-change="valchange()" />
    密码：<input type="text" ng-model="password" ng-change="valchange()" />
  </form>
</script>
</body>
</html>

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<!DOCTYPE html>
<html ng-app="app">
<head>
  <title>demo</title>
  <meta charset="utf-8"/>
  <script src="http://cdn.bootcss.com/jquery/3.0.0-alpha1/jquery.min.js"></script>
  <script id="others_angular_103" type="text/javascript" class="library" src="http://sandbox.runjs.cn/js/sandbox/other/angular.min.js"></script>
  <style>
    .contani{
      width: 100%;
      height: 300px;
      border: 1px solid red;
    }
  </style>
</head>
<body ng-controller="myCtrl">
<script>
  var app = angular.module('app',[]);
  app.controller('myCtrl', ['$scope','$compile',function(scope,$compile){
    scope.valchange = function(){
      console.log('value change')
    }
    scope.edit = function(){
      //假设这是ajax返回的数据
      scope.username = 'wangmeijian';
      scope.password = '000000';
      //$(".contani").html(myTmpl.innerHTML);
      $(".contani").append( $compile(myTmpl.innerHTML)(scope) )
    }
  }])
</script>
<button ng-click="edit()">修改资料</button>
<div class="contani"></div>
<script type="text/html" id="myTmpl">
  <form>
    用户名：<input type="text" ng-model="username" ng-change="valchange()" />
    密码：<input type="text" ng-model="password" ng-change="valchange()" />
  </form>
</script>
</body>
</html>