为什么$ http.get()在我的角度服务未定义?我的、角度、未定义、http

2023-09-13 04:05:56 作者:\\もyI露★

我试图加载一些JSON,并将其存储使用$ rootScope使其控制器之间仍然存在。当我运行我的应用程序,我得到了以下错误:

 类型错误:不能调用方法'得到'的未定义 

get方法是完美的工作,直到我试图引进$ rootScope ...任何想法?

我的服务是这样的:

  1 / **  2 *服务从JSON源获取测验数据  3 * /  4 app.factory('quizService',['$ rootScope',函数($范围,$ rootScope,$ HTTP){  5 VAR的承诺;  6 VAR的服务= {  7 getQuiz:功能($范围,$ HTTP){  8,如果(!诺){  9承诺= $ http.get('QuizFileName.quiz'),然后(功能(响应){ 10回response.data; 11}); 12} 13回报的承诺; 14} 15}; 16退换货服务; 17}]); 

我的控制器看起来是这样的:

  7 //从服务测验数据  8 quizService.getQuiz()。然后(功能(数据){  9 $ scope.quiz =数据; 10 11 //重定向到的分数,如果已经完成此 12如果($ scope.quiz.complete ===真){ 13 $ location.path('分数'); 14} 15}); 
基于Http实现网络操作

解决方案

OK,Reboog711把我在正确的轨道上,我需要修改我厂定义,包括$ HTTP,我不得不previously试图做到这一点,却误把它在一起是这样的:

 '$ rootScope,$ HTTP 

不这样做,这是坏的,错了!但Reboog711的回答也给了我的错误,因为我认为你不能在路上使用$范围内,我们都认为。

正确(或工作)的解决方案是:

  app.factory('quizService',['$ rootScope,$ HTTP',函数($ rootScope,$ HTTP){ 

我希望这可以帮助其他的新人角。非常感谢所有谁与他们的意见回答。我真的很尊重这个社会对伟大的态度来帮助他人:)

I'm trying to load some JSON and store it using $rootScope so that it persists between controllers. When I run my app I get the following error:

TypeError: Cannot call method 'get' of undefined

The get method was working perfectly until I tried to introduce $rootScope... any ideas?

My service looks like this:

  1 /**
  2  * Service to get the quiz data from a JSON source
  3  */
  4 app.factory('quizService', ['$rootScope', function ($scope, $rootScope, $http) {
  5     var promise;
  6     var service = {
  7         getQuiz: function($scope, $http) {
  8             if ( !promise ) {
  9                 promise = $http.get('QuizFileName.quiz').then(function (response) {
 10                     return response.data;
 11                 });
 12             }
 13             return promise;
 14         }
 15     };
 16     return service;
 17 }]);

My controller looks like this:

  7     // Get Quiz data from service
  8     quizService.getQuiz().then(function(data) {
  9         $scope.quiz = data;
 10
 11         // Redirect to scores if already completed this
 12         if($scope.quiz.complete === true) {
 13             $location.path('scores');
 14         }
 15     });

解决方案

OK, Reboog711 put me on the right track, I needed to modify my factory definition to include $http, I had previously tried to do this, but mistakenly put it together like this:

'$rootScope, $http'

Don't do this, it's bad and wrong! But Reboog711's answer also gave me errors because I think you can't use $scope in the way we both thought.

The correct (or working) solution was:

app.factory('quizService', ['$rootScope', '$http', function ($rootScope, $http) {

I hope this helps other newcomers to Angular. Many thanks to all who replied with their comments. I really respect this community for its great attitude to helping others :)