AngularJS:将数据从服务返回到控制器

Question

我正在尝试创建一个服务来获取json并将其传递给我homeCtrl我可以获取数据但是当它传递给我的homeCtrl它总是返回undefined.我卡住了.

我的服务:

var myService = angular.module("xo").factory("myService", ['$http', function($http){
  return{
    getResponders: (function(response){
      $http.get('myUrl').then(function(response){
         console.log("coming from servicejs", response.data);
      });
    })()
  };
  return myService;
  }
]);

我的家庭控制器:

var homeCtrl = angular.module("xo").controller("homeCtrl", ["$rootScope", "$scope", "$http", "myService",
function ($rootScope, $scope, $http, myService) {
 $scope.goData = function(){
     $scope.gotData = myService.getResponders;
 };
 console.log("my service is running", $scope.goData, myService);
}]);

Answer 1

你应该从getResponders函数返回promise ,当它被解析时它应该response.data从该函数返回.

厂

var myService = angular.module("xo").factory("myService", ['$http', function($http) {
    return {
        getResponders: function() {    
            return $http.get('myUrl')
            .then(function(response) {
                console.log("coming from servicejs", response.data);
                //return data when promise resolved
                //that would help you to continue promise chain.
                return response.data;
            });
        }
    };
}]);

同样在控制器内部,您应该调用工厂函数并使用.then函数在getResponders服务函数解析$http.get调用并分配data到时调用它$scope.gotData

码

 $scope.goData = function(){
     myService.getResponders.then(function(data){
          $scope.gotData = data;
     });

 };