如何在角度拦截器中执行重定向? [英] How do I preform a redirect in an angular interceptor?

问题描述

我对angular还是很陌生，我想知道在拦截器中处理重定向的最佳方法.

I am pretty new to angular, and I had a question on the best way to handle a redirect within an interceptor.

我的应用程序中有某些页面，只有选择了帐户后才能访问.因此，如果未选择帐户，则我希望用户转到页面以选择该帐户.

I have certain pages in my app that I should only be able to access if I have an account selected. So if an account is not selected I want the route the user to page to select the account.

以下是我失败的尝试:

    // within config

    $httpProvider.interceptors.push(function($q, $injector){
        return {
            'request': function(config) {
                var state = $injector.get('$state');

                if(state.is('user.list')) {
                    var accountService = $injector.get('AccountService');
                    if(!accountService.accountSelected()){
                        
                        // cancel the current request
                        var defer = $q.defer();
                        defer.resolve();
                        config.timeout = defer.promise;

                        state.go('account.select');

                    }
                }

                return config;
            }
        }
    });

这对我造成了无限循环.由于某些原因，当 state.go 触发时-并被重新拦截，该状态仍为"user.list"

This is causing an infinite loop for me. For some reason when state.go fires -- and it gets re-intercepted the state is still "user.list"

注意:我使用的是ui-router，角度为1.2.6

Note: I am using ui-router, angular 1.2.6

另一个注意事项:我想到的另一个地方是在state.resolve块中.

Another Note: The other place I thought of putting this was in a state.resolve block.

推荐答案

做到这一点

$injector.get('$state').transitionTo('public.login');

下面的完整代码

var interceptor = ['$location', '$q', '$injector', function($location, $q, $injector) {
    function success(response) {
        return response;
    }

    function error(response) {

        if(response.status === 401) {
            $injector.get('$state').transitionTo('public.login');
            return $q.reject(response);
        }
        else {
            return $q.reject(response);
        }
    }

    return function(promise) {
        return promise.then(success, error);
    }
}];

$httpProvider.responseInterceptors.push(interceptor);

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