$rootscope不持有值

Question

我使用以下代码将用户名('pqr')值存储在根范围内，但它是由$http.get mehtod限定范围的。

angular.module('myApp').run(function ($rootScope,$http) {
    $rootScope.username = 'abc';
    $http.get('/api/getuser')
        .success(function(data) {
            console.log("logged in user is: "+data);
            $rootScope.username = data;
        });
    $rootScope.$on('$routeChangeStart', function (event, next) {
    });
    console.log("logged in user after setting: " + $rootScope.username);
});

控制台日志输出如下：

logged in user is: pqr
logged in user after setting: abc

如何将$rootScope.username设置为超出$http.get方法范围的pqr

编辑:增加了结束括号。

Answer 1

应该关闭，因为这是一个异步问题.运行此代码，您将看到。

angular.module('myApp').run(function ($rootScope,$http) {
 $rootScope.username = 'abc';
 var $promise = $http.get('/api/getuser')
    .success(function(data) {
      console.log("logged in user is: "+data);
      $rootScope.username = data;
    });
 $rootScope.$on('$routeChangeStart', function (event, next) {

 });
 $promise.then(function(){
     console.log("logged in user after setting: "+$rootScope.username);
 });