Question

我有一个函数通过$http.Get方法从服务器获取数据。收到数据后我需要在另一个函数上使用它。任何人都可以帮助我如何使用数据。

var app = angular.module("app", []);
    app.factory('itemsFactory', function ($http) {
        var factory = {};
        factory.getItems = function () {
            return $http.get('.//davidstrans.json')
        };
        return factory;
    });
    app.controller('UsersTransController', function ($scope, itemsFactory) {
        itemsFactory.getItems().success(function (data) {
            $scope.users = data;
        });});

之后我有一个动态获取类型的函数：

function groupBy(arr, key) {
            var newArr = []
                , types = {}
                , newItem, i, j, cur;
            for (i = 0, j = arr.length; i < j; i++) {
                cur = arr[i];
                if (!(cur[key] in types)) {
                    types[cur[key]] = {
                        type: cur[key]
                        , data: []
                    };
                    newArr.push(types[cur[key]]);
                }
                types[cur[key]].data.push(cur);
            }
            return newArr;
        };

对于这个函数，我必须使用$scope.users=data;值。谁能帮我？提前谢谢。

Answer 1

请在代码中进行相应更改：

var app = angular.module("app", []);
app.factory('itemsFactory', function ($http) {
    var factory = {};
    factory.getItems = function (successCallBack,errorCallBack) {
       $http({
  method: 'GET',
  url: './/davidstrans.json'
}).then(function(response) {
    // this callback will be called asynchronously
    // when the response is available
           successCallBack(response);
  }, function(response) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
           errorCallBack(response);
  });
    };
    return factory;
});

并在app.controller中：

  app.controller('UsersTransController', function ($scope, itemsFactory) {
var successCallBack = function(data){
     $scope.users = data;
}
var errorCallBack = function (data){
   //if you want to show any error 
}
  itemsFactory.getItems(successCallBack, errorCallBack);
});

如何在angularjs中使用$ http.Get数据到函数中

1 个答案: