var app = angular.module("app",[]);

app.run(function($rootScope){
  $rootScope.todos = [
    {item:"",done:true},
    {item:"",done:false}
  ];
})


<div ng-repeat="todo in todos">
  {{todo.item}}
</div>

<form>
  <input type="text" ng-model="newTodo" />
  <input type="submit" ng-click=""todos.push({item:newTodo, done:false}) />
</form>

以上，把數(shù)據(jù)源放在$rootScope中的某個字段中，很容易被重寫。

■ 數(shù)據(jù)源放在service中,把servie注入到run函數(shù)中

app.service("TodoService", function(){
  this.todos = [
    {item:"",done:true},
    {item:"",done:false}
  ];
   
})

app.run(function($rootScope, TodoService){
  $rootScope.TodoService = TodoService;
}) 

<div ng-repeat="todo in TodoService.todos">
  {{todo.item}}
</div>

<form>
  <input type="text" ng-model="newTodo" />
  <input type="submit" ng-click=""TodoService.todos.push({item:newTodo, done:false}) />
</form>

在html中似乎這樣寫比較好：

<input type="submit" ng-click=""TodoService.todos.addodo(newTodo) />

在service中增加一個方法：

app.service("TodoService", function(){
  this.todos = [
    {item:"",done:true},
    {item:"",done:false}
  ];
  
  this.addTodo = fucntion(newTodo){
    this.todos.push({item:newTodo, done:false})
  }
   
})

■ 數(shù)據(jù)源放在service中,把servie注入到controller中

app.controller("TodoCtrl", function($scope, TodoService){
  this.TodoService = TodoServce;
})

在對應(yīng)的html中：

<body ng-app="app" ng-controller="TodoCtrl as todoCtrl">
  <div ng-repeat="todo in todoCtrl.TodoService.todos">
    {{todo.item}}
  </div>
</body>

<form>
  <input type="text" ng-model="newTodo" />
  <input type="submit" ng-click="todoCtrl.TodoService.addTodo(newTodo)"/>
</form>

■ 數(shù)據(jù)源放在service中,把servie注入到controller中，與服務(wù)端交互

在實際項目中，service還需要和服務(wù)端交互。

var app = angular.module("app",[]);

app.service("TodoService", function($q, $timeout){
  this.getTodos = function(){
    var d = $q.defer();
    
    //模擬一個請求
    $timeout(function(){
      d.resolve([
        {item:"", done:false},
        ...
      ])
    },3000);
    
    return d.promise;
  }
  
  this.addTodo = function(item){
    this.todos.push({item:item, done:false});
  }
})

app.controller("TodoCtrl", function(TodoService){
  var todoCtrl = this;
  
  TodoService.getTodos().then(function(result){
    todoCtrl.todos = result;
  })
  
  todoCtrl.addTodo = TodoService.addTodo;
})

以上就是AngularJS中獲取數(shù)據(jù)源的方法，希望對大家的學(xué)習(xí)有所幫助。

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