用角捕获HTTP 401。js拦截器

I'd like to implement authentication on a single page web app with Angular.js. The official Angular documentation recommends the using of interceptors:

我想用Angular.js在一个页面web应用程序上实现身份验证。官方角度文件建议使用拦截器:

$provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {
  return {

    // ...

    'responseError': function(rejection) {
      // do something on error
      if (canRecover(rejection)) {
        return responseOrNewPromise
      }
      return $q.reject(rejection);
    }
  };
});

The problem is when the server sends 401 error, the browser immediately stops with "Unauthorized" message, or with login pop-up window (when authentication HTTP header is sent by the server), but Angular can't capture with it's interceptor the HTTP error to handle, as recommended. Am I misunderstanding something? I tried more examples found on web (this, this and this for example), but none of them worked.

问题是，当服务器发送401错误时，浏览器会立即停止发送“未授权”消息，或者使用登录弹出窗口(当服务器发送身份验证HTTP报头时)，但是角无法捕获它的拦截器所处理的HTTP错误，如推荐的那样。我误解什么?我在web上尝试了更多的例子(比如这个，这个和这个)，但是没有一个是有效的。

4 个解决方案

#1

in app config block:

在应用程序配置块:

var interceptor = ['$rootScope', '$q', "Base64", function(scope, $q, Base64) {
  function success(response) {
    return response;
  }

  function error(response) {
    var status = response.status;
    if (status == 401) {
      //AuthFactory.clearUser();
      window.location = "/account/login?redirectUrl=" + Base64.encode(document.URL);
      return;
    }
    // otherwise
    return $q.reject(response);
  }
  return function(promise) {
    return promise.then(success, error);
  }
}];

#2

For AngularJS >1.3 use $httpProvider.interceptors.push('myHttpInterceptor');

对于AngularJS >1.3，使用$httpProvider.interceptors.push('myHttpInterceptor');

.service('authInterceptor', function($q) {
    var service = this;

    service.responseError = function(response) {
        if (response.status == 401){
            window.location = "/login";
        }
        return $q.reject(response);
    };
})
.config(['$httpProvider', function($httpProvider) {
    $httpProvider.interceptors.push('authInterceptor');
}])

#3

I don't know why, but response with 401 error goes into success function.

我不知道为什么，但是响应401 error进入成功函数。

'responseError': function(rejection)
                {
                    // do something on error

                    if (rejection.status == 401)
                    {
                        $rootScope.signOut();
                    }

                    return $q.reject(rejection);
                },
                'response': function (response) {
                    // do something on error
                    if (response.status == 401) {
                        $rootScope.signOut();
                    };
                    return response || $q.when(response);
                }

#4

AngularJS interceptors only work for calls made with the $http service; if you navigate to a page that returns a 401, AngularJS never even runs.

AngularJS拦截器只适用于使用$http服务进行的调用;如果导航到返回401的页面，AngularJS甚至不会运行。

#1