当我有一个responseError拦截器时,为什么不调用我的$ resource错误处理程序?

时间:2013-10-29 08:35:20

标签: angularjs angularjs-resource

我正在构建我的第一个Angular应用程序,但我遇到了一个问题。我有一个AngularJS资源,其.get我调用成功和错误回调,如下所示:

var new_uptime = Uptime.get({}, function(){
    console.log("new_uptime", new_uptime, "$scope.uptime", $scope.uptime);
    console.log("new_uptime.uptime", new_uptime.uptime);
    if ($scope.uptime && new_uptime.uptime < $scope.uptime.uptime) {
        console.log("Reboot detected");
        location.reload(true);
    }
    $scope.uptime = new_uptime;
    $timeout(reload_uptime, 5000);
}, function(response){
    console.log("Failed to read uptime", response);
    console.log("Retrying in 10s");
    $scope.uptime = "[unknown]";
    $timeout(reload_uptime, 10000);
}); 

我已经使用服务器的各种错误状态测试了它,它运行正常。现在我想在503s上添加应用程序范围的重试。我为此添加了一个模块,如下所示:

retry_module = angular.module('service.retry', []);
retry_module.factory("retry", ["$q", "$injector", "$timeout", function($q, $injector, $timeout) {
    return {
        "responseError": function(rejection) {
            console.log("Request failed", rejection);
            if (rejection.status != 503) {
                console.log("Unhandled status");
                return $q.reject(rejection);
            }
            var delay = Math.floor(Math.random() * 1000);
            console.log("Was 503, retrying in " + delay + "ms");
            var deferred = $q.defer();
            $timeout(function() {
                var $http = $http || $injector.get("$http");
                deferred.resolve($http(rejection.config));
            }, delay);
            return deferred;
        }
    };
}]);
retry_module.config(["$httpProvider", function ($httpProvider) {
    $httpProvider.interceptors.push("retry");
}]);

这适用于在503s上重试,并且成功的尝试由Uptime.get调用者中的成功回调处理,如预期的那样。但是,如果服务器返回一些其他错误,那么我得到“未处理状态”打印输出,但是既没有“new_uptime”也没有“无法读取正常运行时间”。我的拒绝去了哪里,我该如何处理这样的问题?

1 个答案:

答案 0 :(得分:2)

你需要退还承诺,而不是延期。所以responseError处理程序的结尾应该是:

        var deferred = $q.defer();
        $timeout(function() {
            var $http = $http || $injector.get("$http");
            deferred.resolve($http(rejection.config));
        }, delay);
        return deferred.promise;