Question

我做了很简单plunker来表明我的问题。问题是我有变量，我想用初始app加载来填充这个变量，我为此目的做了角度服务，但由于某种原因，角度服务不会在控制器内部触发。我的错误在哪里？

app.controller('MainCtrl', function($scope, optService) {

  $scope.priority = [];

  var exeService = function() {

    console.log('function fired')
     // this is firing
      optService.myOptions(function (result) {

        console.log('service fired')
     // this is not firing
          angular.forEach(result, function(value) {

              $scope.priority.push({value: value.name, label: value.name});

          });
      });
   }
  exeService()
  console.log($scope.priority)
  // shows an empty array
});

服务

(function () {

angular.module("app").factory("optService", ["$http", "$rootScope", "$q", "$log",
    function ($http, $rootScope, $q, $log) {

        var clearApi = "test.json";


        function myOptions () {
            return $http.get(clearApi)
                .then(function (response) {
                  console.log(response.data)
                  // shows an array
                    return response.data;
                });
        } 

        return {
          myOptions: myOptions
        }

        }])
}());

Answer 1

您应该执行以下服务声明：

 app.controller('MainCtrl', ['$scope', 'optService', function($scope, optService) {

并在控制器中

  optService.myOptions().then(function (result) {

    console.log('service fired')

      angular.forEach(result, function(value) {

          $scope.priority.push({value: value.name, label: value.name});

      });
  });

角度服务没有发射

1 个答案: