Question

这里我在.constant中定义了一些网址，如

app.constant('UrlConstant',function(){
    var GlobalUrl = "http://localhost:5833/";})

这个UrlConstant如何在我的控制器中使用

var app = angular.module('MyApp', [])
app.controller('twoWayBinding', function ($scope, UrlConstant) {
    $scope.changefun = function () {
        console.log(UrlConstant.GlobalUrl);
    }

在console.log我得到了不明白的

Answer 1

您需要将常量声明为

app.constant('UrlConstant','http://localhost:5833/')

<强>样本

＆＃13;

var app = angular.module('MyApp', [])
app.controller('twoWayBinding', function ($scope, UrlConstant) {
    $scope.changefun = function () {
        console.log(UrlConstant);
   }
});
    
app.constant('UrlConstant','http://localhost:5833/')

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="MyApp" ng-controller="twoWayBinding">
  <button ng-click="changefun()">GetVal</button>
   
</body>

＆＃13;

Answer 2

使用object作为常量值：

app.constant('UrlConstant', {
    GlobalUrl: "http://localhost:5833/"
});

然后您可以使用UrlConstant.GlobalUrl：

来调用它

var app = angular.module('MyApp', [])
app.controller('twoWayBinding', function ($scope, UrlConstant) {
    $scope.changefun = function () {
        console.log(UrlConstant.GlobalUrl);
    }
})

如何在我的控制器中使用常量URL

2 个答案: