javascript - 使用 HttpInterceptor 的 Angular 1.5 超时

Question

全部，

我正在尝试设置一个全局 httpInterceptor，以便在出现客户端超时(而不是服务器超时)时显示自定义弹出消息。我找到这篇文章:Angular $http : setting a promise on the 'timeout' config ，并将其转换为 httpInterceptor，但它没有按预期工作，并且有一些奇怪的行为。

 $provide.factory('timeoutHttpInterceptor', function ($q, $translate, $injector) {

        var timeout = $q.defer();

        var timedOut = false;

        setTimeout(function () {
            timedOut = true;
            timeout.resolve();
        }, 10000);
        return {
            request: function (config) {
                config.timeout = timeout.promise;
                return config;
            },
            response: function(response) {
                return response;
            },
            responseError: function (config) {
                if(timedOut) {
                    var toastr = $injector.get('toastr');
                    toastr.custom('network', $translate('title'), $translate('label'), { timeOut: 5000000000000, closeButton: true, closeHtml: '<button></button>' });
                    return $q.reject({
                        error: 'timeout',
                        message: 'Request took longer than 1 second(s).'
                    });
                }
            },
        };
    });

Answer 1

您可以使用返回 promise 的$timeout服务并将其分配给config.timeout。看看下面的代码。

.factory('timeoutInterceptor', ['$q','$timeout', function($q,$timeout) {
    return {
      request: function(config) {
        //assign a promise with a timeout, and set timedOut flag, no need to trigger $digest, thus false as 3rd param
        config.timeout = $timeout(function(){ config.timedOut = true },2000,false);
        return config;
      },
      responseError :function(rejection) {
        if(rejection.config.timedOut){ //if rejected because of the timeout - show a popup 
            alert('Request took longer than 1 second(s).');
        }
        return $q.reject(rejection);
      }
    };

这是完整的工作示例:http://jsfiddle.net/2g1y4bk9/