AngularJS监听路由变化的方法

使用AngularJS时，当路由发生改变时，我们需要做某些处理，此时可以监听路由事件，常用的是$routeStartChange, $routeChangeSuccess。完整例子如下：

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <title>AngularJS监听路由变化</title>
</head>
<body ng-app="ngRouteExample">
  <div id="navigation">
   <a href="#/home" rel="external nofollow" >Home</a>
   <a href="#/about" rel="external nofollow" >About</a>
  </div>

  <div ng-view></div>

  <script type="text/ng-template" id="home.html">
   <h1> Home </h1>
   <table>
    <tbody>
     <tr ng-repeat="x in records" style="background:#abcdef;">
      <td>{{x.Name}}</td>
      <td>{{x.Country}}</td>
     </tr>
    </tbody>
   </table>
  </script>

  <script type="text/ng-template" id="about.html">
   <h1> About </h1>
   <p>在输入框中尝试输入：</p>
   <p>姓名：<input type="text" ng-model="name"></p>
   <p>你输入的为： {{name}}</p>
  </script>

  <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
  <script src="http://apps.bdimg.com/libs/angular-route/1.3.13/angular-route.js"></script>
  <script type="text/javascript">
  angular.module('ngRouteExample', ['ngRoute'])
  .config(function ($routeProvider) {
    $routeProvider.
    when('/home', {
      templateUrl: 'home.html',
      controller: 'HomeController'
    }).
    when('/about', {
      templateUrl: 'about.html',
      controller: 'AboutController'
    }).
    otherwise({
      redirectTo: '/home'
    });
  })
  .run(['$rootScope', '$location', function($rootScope, $location) {
    /* 监听路由的状态变化 */
    $rootScope.$on('$routeChangeStart', function(evt, next, current){
     console.log('route begin change');
    });
    $rootScope.$on('$routeChangeSuccess', function(evt, current, previous) {
     console.log('route have already changed ：'+$location.path());
    });
  }])
  .controller('HomeController', function ($scope) {
    $scope.records = [{
     "Name" : "Alfreds Futterkiste",
     "Country" : "Germany"
    },{
     "Name" : "Berglunds snabbköp",
     "Country" : "Sweden"
    },{
     "Name" : "Centro comercial Moctezuma",
     "Country" : "Mexico"
    },{
     "Name" : "Ernst Handel",
     "Country" : "Austria"
    }]
  })
  .controller('AboutController', function ($scope) {
   $scope.name = '呵呵';
  });
</script>
</body>
</html>

上述的例子是AngularJS 1的，对于Angular2是否也可以用，还没尝试过，有机会验证了再记录下咯~~

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