尝试从另一个模块获取常量时，角度未知的提供程序

Question

Just started on AngularJS, and it has been a challenging ordeal so far. 刚开始使用AngularJS，到目前为止，它一直是一项艰巨的考验。

My problem today is I'm trying to configure a controller through a variable on the URL. 我今天的问题是我试图通过URL上的变量配置控制器。 I don't want the "real" controller to have to know where a given parameter came from, so long as it's there. 我不希望“真实的”控制器必须知道给定参数的来源，只要它在那里。 The main app controller is therefore responsible of getting the parameter from the URL, and setting a constant that the "real" controller will use. 因此，主应用程序控制器负责从URL获取参数，并设置“真实”控制器将使用的常量。

For the life of me, I cannot see what I am doing wrong in the initialization. 对于我的一生，我看不到初始化中做错了什么。 Any help would be greatly appreciated (including what are standard practices to troubleshoot these kind of issues :)) 任何帮助将不胜感激（包括解决此类问题的标准做法：）

Here is the html: 这是html：

<!DOCTYPE html>
<html ng-app="myApp">
    <head>
    <!-- the base tag is required for th Angular.js $location.search() function to work correctly -->
    <base href='/' />
    <script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.js"></script>
    <script>
        angular.module("myController.constants", []);
        angular.module("myApp", ["myController", "myController.constants"], function($locationProvider) {
            $locationProvider.html5Mode(true);
        })
        .controller("myAppCtrl", ['$scope', '$location', function ($scope, $location) {
            var searchObject = $location.search();
            angular.module("myController.constants").constant('myConstant', searchObject['theConstant']);
        }]);
     </script>
    <script src="js/controllerExample.js"></script>
</head>
<body ng-controller="myAppCtrl">
    <div ng-controller="myControllerCtrl">
        <p>The constant is {{theConstant}}</p>
    </div>
</body>
</html>

Here is the js for the controller: 这是控制器的js：

angular.module("myController", ["myController.constants"])
.controller("myControllerCtrl", ['$scope', 'myConstant', function ($scope, myConstant) {
    $scope.theConstant = myConstant;
}]);

With the code above, I keep getting this error message 使用上面的代码，我不断收到此错误消息

Error: [$injector:unpr] Unknown provider: myConstantProvider <- myConstant <- myControllerCtrl 错误：[$ injector：unpr]未知提供程序：myConstantProvider <-myConstant <-myControllerCtrl

Thanks! 谢谢！

Answer 1

I could be mistaken but I don't think you can declare a module inside a controller declaration. 我可能会误会，但我认为您不能在控制器声明中声明模块。 Try putting 试穿

angular.module("myController.constants").constant('myConstant', searchObject['theConstant']);

outside "myAppCtrl" declaration. 在“ myAppCtrl”声明之外。

尝试从另一个模块获取常量时，角度未知的提供程序

问题描述

1 个解决方案

解决方案1
1 2015-03-24 15:57:14

尝试从另一个模块获取常量时，角度未知的提供程序

问题描述

1 个解决方案

解决方案1 1 2015-03-24 15:57:14

解决方案1
1 2015-03-24 15:57:14