未知提供程序:Yeoman AngulajrJS生成的应用程序内部出现aProvider错误

时间:2018-08-13 17:30:11

标签: angularjs runtime-error yeoman

我用 Yeoman AngularJS 生成器生成了一个 AngularJS 应用,当运行原始源代码时,它运行良好。

但是当我尝试从 Grunt build 生成的dist文件夹中运行应用程序时 我收到以下错误:

  

vendor.972e9c35.js:5错误:[$ injector:unpr]未知提供者:aProvider <-a   https://errors.angularjs.org/1.7.2/ $ injector / unpr?p0 = aProvider%20%3C-%20a       在vendor.972e9c35.js:3       在vendor.972e9c35.js:4       在Object.d [获得](vendor.972e9c35.js:4)       在vendor.972e9c35.js:4       在d(vendor.972e9c35.js:4)       在e(vendor.972e9c35.js:4)       在Object.g [作为调用](vendor.972e9c35.js:4)       在l.instance(vendor.972e9c35.js:5)       在vendor.972e9c35.js:26       在我(vendor.972e9c35.js:6)上,“可能未处理的拒绝:{}”

我看到这是一个常见错误,解决方案应该是在数组中声明所有服务(您可以使用ng注释的npm模块自动执行此操作)-我这样做了,但仍然遇到相同的错误。

这是我带有所有控制器和服务的原始.js文件:

var routerApp = angular.module('routerApp', ['ui.router','ui.grid','ui.bootstrap']);


routerApp.controller('expensesListCtrl',["$http", "gridService", function ($http,gridService) {
    var vm = this;
    vm.recievedData = false;
    vm.searchInput;
    vm.gridOptions = gridService.getOption();
    //vm.gridOptions.columnDefs = [{field:"name"},{field:"amount"},{field:"type"},{field:"time",type:'date'}];

    $http.get("http://localhost:8080/expenses").then(function(response){

      gridService.setData(response.data.expenses);
      gridService.setUnfilteredData(response.data.expenses);
      vm.recievedData = true;
    }).catch(function (error) {
        console.log(error);
    });
}]);

routerApp.factory('gridService',function () {


  var gridServiceInstance = {};
  gridServiceInstance.gridOptions = {};
  gridServiceInstance.gridOptions.columnDefs = [{field:"name"},{field:"amount"},{field:"type"},{field:"time",type:'date'}];
  gridServiceInstance.unfilteredData;

  gridServiceInstance.getData = function () {
    return gridServiceInstance.gridOptions.data;
  }

  gridServiceInstance.setData = function (data) {
    gridServiceInstance.gridOptions.data = data;
  }

  gridServiceInstance.getOption = function(){
    return gridServiceInstance.gridOptions;
  }

  gridServiceInstance.setUnfilteredData = function (data) {
    gridServiceInstance.unfilteredData = data;
  }

  gridServiceInstance.getUnfilteredData = function(){
    return gridServiceInstance.unfilteredData;
  }

  return gridServiceInstance;

})

routerApp.controller('mainPageNavCtrl',["$scope", "$uibModal", "$http", "gridService", function ($scope,$uibModal,$http,gridService) {

    var vm = this;
    $scope.check = "check str";


    $scope.addPath = function(){
        console.log("add path");
        $uibModal.open({
            templateUrl: 'addPathModal.html',
            controller: ["$scope", "$uibModalInstance", function ($scope, $uibModalInstance) {

                $scope.addExpenseForm = {};

                $scope.ok = function () {
                    $http.post("http://localhost:8080/expenses",$scope.addExpenseForm).then(function(response){
                        console.log(response);
                    })
                    $uibModalInstance.close();
                };

                $scope.cancel = function () {
                    $uibModalInstance.dismiss('cancel');
                };
            }]
        })
    }
    $scope.searchText = function () {
      console.log("inside search text");

      if($scope.searchInputText == null || $scope.searchInputText.length == 0)
      {
        gridService.setData(gridService.getUnfilteredData());
        return;
      }

      var filteredData = gridService.getUnfilteredData().filter(function (element) {
        if ( (element.name.indexOf($scope.searchInputText) != -1) || element.type.indexOf($scope.searchInputText) != -1) {
          return true;
        }
        return false;
      });
      gridService.setData(filteredData);
    }

}])


routerApp.config(["$stateProvider", "$urlRouterProvider", function($stateProvider, $urlRouterProvider) {

    $urlRouterProvider.otherwise('/home');
    $stateProvider

    // HOME STATES AND NESTED VIEWS ========================================
        .state('home', {
            url: '/home',
            templateUrl: 'expensesList.html',
            controller: 'expensesListCtrl as vm'
        })

        // ABOUT PAGE AND MULTIPLE NAMED VIEWS =================================
        .state('about', {
            // we'll get to this in a bit
        });

}]);

我想念什么? 谢谢您的帮助!

1 个答案:

答案 0 :(得分:1)

Angular会从参数名称到控制器的构造函数来推断控制器的依赖关系,如果您要缩减ExpenseListCtrl控制器的JavaScript代码,则其所有函数参数也会被缩减,并且依赖关系注入器将无法正确识别服务。定义servicesfactories的逻辑相同。

您可以通过以依赖项的名称(以字符串形式提供)来注释该函数来克服此问题,这些依赖项的名称不会缩小。

Angular通过注入器调用某些功能(例如服务工厂和控制器)。您需要注释这些功能,以便注入器知道要向该函数注入哪些服务。可以使用三种方法用服务名称信息来注释代码:

  • 使用内联数组批注(首选)
  • 使用$inject属性注释
  • 从函数参数名称中隐式表示(有警告) 因此,您已经使用了第一种方法,也需要将其用于工厂(即使不需要显式的依赖关系)。

因此,以下应解决此问题:

routerApp.factory('gridService', [ function () { /*factory code*/ }]);

Angularjs dependency annotation

declaring-angularjs-modules-for-minification