请尝试下面的代码

你可以分离控制器(PageCtrl)和服务(dataService)

'use strict'; (function () { angular.module('myApp') .controller('pageContl', ['$scope', 'dataService', PageContl]) .service('dataService', ['$q', '$http', DataService]); function DataService($q, $http){ this.$q = $q; this.$http = $http; //... blob blob } DataService.prototype = { getSearchData: function () { var deferred = this.$q.defer(); //initiating promise this.$http({ method: 'POST',//GET url: 'test.json', headers: { 'Content-Type': 'application/json' } }).then(function(result) { deferred.resolve(result.data); },function (error) { deferred.reject(error); }); return deferred.promise; }, getABCDATA: function () { } }; function PageContl($scope, dataService) { this.$scope = $scope; this.dataService = dataService; //injecting service Dependency in ctrl this.pageData = {}; //or []; } PageContl.prototype = { searchData: function () { var self = this; //we can't access 'this' of parent fn from callback or inner function, that's why assigning in temp variable this.dataService.getSearchData().then(function (data) { self.searchData = data; }); } } }());

至于在服务中缓存响应，这里有另一个版本，似乎比我目前看到的更直接:

App.factory('dataStorage', function($http) {
     var dataStorage;//storage for cache

     return (function() {
         // if dataStorage exists returned cached version
        return dataStorage = dataStorage || $http({
      url: 'your.json',
      method: 'GET',
      cache: true
    }).then(function (response) {

              console.log('if storage don\'t exist : ' + response);

              return response;
            });

    })();

});

该服务将返回缓存的数据或$http.get;

 dataStorage.then(function(data) {
     $scope.data = data;
 },function(e){
    console.log('err: ' + e);
 });

我读过http://markdalgleish.com/2013/06/using-promises-in-angularjs-views/ [AngularJS允许我们通过直接在作用域上放置承诺来简化我们的控制器逻辑，而不是在成功回调中手动处理已解析的值。]

如此简单和方便:)

var app = angular.module('myApp', []);
            app.factory('Data', function($http,$q) {
                return {
                    getData : function(){
                        var deferred = $q.defer();
                        var promise = $http.get('./largeLoad').success(function (response) {
                            deferred.resolve(response);
                        });
                        // Return the promise to the controller
                        return deferred.promise; 
                    }
                }
            });
            app.controller('FetchCtrl',function($scope,Data){
                $scope.items = Data.getData();
            });

希望这对你有所帮助

我也有同样的问题，但当我在互联网上冲浪时，我明白$http返回默认的承诺，然后我可以在返回“数据”后使用“然后”。看看代码:

 app.service('myService', function($http) {
       this.getData = function(){
         var myResponseData = $http.get('test.json').then(function (response) {
            console.log(response);.
            return response.data;
          });
         return myResponseData;

       }
});    
 app.controller('MainCtrl', function( myService, $scope) {
      // Call the getData and set the response "data" in your scope.  
      myService.getData.then(function(myReponseData) {
        $scope.data = myReponseData;
      });
 });

请尝试下面的代码

你可以分离控制器(PageCtrl)和服务(dataService)

'use strict'; (function () { angular.module('myApp') .controller('pageContl', ['$scope', 'dataService', PageContl]) .service('dataService', ['$q', '$http', DataService]); function DataService($q, $http){ this.$q = $q; this.$http = $http; //... blob blob } DataService.prototype = { getSearchData: function () { var deferred = this.$q.defer(); //initiating promise this.$http({ method: 'POST',//GET url: 'test.json', headers: { 'Content-Type': 'application/json' } }).then(function(result) { deferred.resolve(result.data); },function (error) { deferred.reject(error); }); return deferred.promise; }, getABCDATA: function () { } }; function PageContl($scope, dataService) { this.$scope = $scope; this.dataService = dataService; //injecting service Dependency in ctrl this.pageData = {}; //or []; } PageContl.prototype = { searchData: function () { var self = this; //we can't access 'this' of parent fn from callback or inner function, that's why assigning in temp variable this.dataService.getSearchData().then(function (data) { self.searchData = data; }); } } }());

因为它是异步的，$作用域在ajax调用完成之前获取数据。

你可以在你的服务中使用$q来创造承诺，并把它还给 控制器和控制器获得的结果在then()调用违背承诺。

为您服务，

app.factory('myService', function($http, $q) {
  var deffered = $q.defer();
  var data = [];  
  var myService = {};

  myService.async = function() {
    $http.get('test.json')
    .success(function (d) {
      data = d;
      console.log(d);
      deffered.resolve();
    });
    return deffered.promise;
  };
  myService.data = function() { return data; };

  return myService;
});

然后，在控制器中:

app.controller('MainCtrl', function( myService,$scope) {
  myService.async().then(function() {
    $scope.data = myService.data();
  });
});