Question

我有这么简单的代码：

$http.get("/api/test")
    .success(function (data, status, headers, config) {
        console.log(data);
        return data;
    }).error(function (data, status, headers, config) {
        alert("error");
        return status;
});

它工作正常，但是从未调用错误函数，即使我从服务器返回404（未找到）... 在这种情况下，它调用“成功”函数，状态= 404 ...

这是对的吗？

由于

的Fiddler：

Request

GET http://localhost:41234/api/test HTTP/1.1
Host: localhost:41234
Connection: keep-alive
Accept: application/json, text/plain, */*
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.22 (KHTML, like Gecko)    Chrome/25.0.1364.172 Safari/537.22
Referer: http://localhost:41234/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: pt-BR,pt;q=0.8,en-US;q=0.6,en;q=0.4
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Cookie: ASP.NET_SessionId=bd1b3rib5j4beub0xbuhb1hm; FormsAuthentication=xxxxx

Response

HTTP/1.1 404 Not Found
Cache-Control: no-cache
Pragma: no-cache
Expires: -1
Server: Microsoft-IIS/8.0
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B?RDpcUGVzc29hxvY2FyLkFwaVxhcGcg==?=
X-Powered-By: ASP.NET
Content-Length: 0

Answer 1

我遇到了同样的问题，老实说，按照这篇文章的提示把我弄错了方向...... 所以，我分享我的案例/解决方案，以便在同样的情况下，其他人可以节省时间。

我使用的是Angular.js 1.2.14 + WebApi 2。这是我对NotFound状态的回应：

Cache-Control:no-cache
Content-Length:0
Date:Sat, 15 Mar 2014 14:28:35 GMT
Expires:-1
Pragma:no-cache
Server:Microsoft-IIS/8.0
X-AspNet-Version:4.0.30319
X-Powered-By:ASP.NET
X-SourceFiles:=?UTF-8?B?QzpcU3ZpbHVwcG9EaXNjaXR1clxhcGlcTWFnMTRcYXBpXGxlc3Nvblw4NA==?=

正如你所看到的，Content-Lenght：0，但没关系。

我的问题是没有正确使用Angular.js拦截器，特别是这样的事情：

responseError: function (result) {
                // check something 
                return result;
            }

返回结果而不抛出异常或拒绝承诺（as written in docs）使得Angular相信我想要以正确的分辨率转换拒绝，然后调用成功回调。

我更正了我的代码如下：

responseError: function (result) {                    
                // check something 
                return $q.reject(result);
            }

Answer 2

问题在于您的网络服务器，它将内容长度设置为0表示这是一个有效值，您可以在HTTP/1.1 specification上看到。

此外，我在JSFiddle上做了一个示例，显示了错误和成功示例。请参阅here。

错误示例中的标题：

请求：

GET /error/ HTTP/1.1
Host: fiddle.jshell.net
Connection: keep-alive
Accept: application/json, text/plain, */*
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/537.31 (KHTML, like  Gecko) Chrome/26.0.1410.65 Safari/537.31
DNT: 1
Referer: http://fiddle.jshell.net/danielcsgomes/cAMc6/1/show/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: UTF-8,*;q=0.5
Cookie: csrftoken=4tNVNxC5v6BSq9yJCKkHlGFJBz3cClqd`

响应：

HTTP/1.1 404 NOT FOUND
Server: nginx/0.8.54
Date: Fri, 12 Apr 2013 00:38:07 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Cookie
Content-Encoding: gzip

Answer 3

如果您使用的是AngularJS 1.1.1或更高版本......

附加'.json'是否有效？：

$http.get("/api/test.json")
  .success(function (data, status, headers, config) {
      console.log(data);
      return data;
  }).error(function (data, status, headers, config) {
      alert("error");
      return status;
});

如果是这样，也可以通过以下方式修复：

myModule.config(['$httpProvider', function ($httpProvider) {
  $httpProvider.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest';
}]);

看到这个=＆gt; Angular JS Fails After Upgrade from 1.1.0 to 1.1.1

Answer 4

也许有点迟到但......目前Angular $ http请求为您提供了一个前提，因此您可以将其更改为：

$http({
    method: "yourMethod",
    url: "yourUrl",
    data: {yourDataObj}
}).then(function (res) {     //first function "success"
    console.log(res.data);
}, function (err) {          //second function "error"
    console.log(err);
});

Answer 5

我们将帖子移到工厂，我们在这里并不关心测试$ http的内容，只是它在成功或错误方面的作用：

factoryModule.factory('GiftFactory', function ($http, Settings) {
    var saveUrl = Settings.endpoints.saveUrl;

    return {
        createGift: function (data) {
            var gift = { gift: JSON.stringify(angular.toJson(data.gift)) };
            return $http.post(saveUrl, gift);
        }
    };
});

我们称之为：

    $scope.submit = function () {
        $scope.submitting = true;
        GiftFactory.createGift($scope)
            .success(function () {
                $window.location = Giving.endpoints.indexUrl;
            }).error(function() {
                $scope.submitting = false;
                alert('an error occurred');
        });
    };

我们测试它是这样的：

describe('donation controller', function () {
var $scope, q, window, controller;

beforeEach(module('giving.donation'));
beforeEach(inject(function ($controller, $rootScope, $q) {
    $scope = $rootScope.$new();
    window = {};
    q = $q;
    giftFactory = {};
    controller = $controller('DonationController', { $scope: $scope, $window: window, GiftFactory: giftFactory });
}));

describe('submit', function () {
    var deferred;
    beforeEach(function () {
        deferred = q.defer();

        deferred.promise.success = function (fn) {
            deferred.promise.then(
                function (response) {
                    fn(response.data, response.status, response.headers);
                });
            return deferred.promise;
        };
        deferred.promise.error = function (fn) {
            deferred.promise.then(null,
                function (response) {
                    fn(response.data, response.status, response.headers);
                });
            return deferred.promise;
        };
    });

    it('should redirect on success', function () {
        //Arrange
        Giving = { endpoints: { indexUrl: "/testurl" } };

        giftFactory.createGift = function () {
            return deferred.promise;
        };

        //Act
        $scope.submit();

        deferred.resolve({});
        $scope.$apply();

        //Assert
        expect($scope.submitting).toBeTruthy();
        expect(window.location).toBe('/testurl');
    });

    it('should set submitting back to false on error', function () {
        //Arrange
        Giving = { endpoints: { indexUrl: "/testurl" } };

        giftFactory.createGift = function () {
            return deferred.promise;
        };

        //Act
        $scope.submit();

        deferred.reject({});
        $scope.$apply();

        //Assert
        expect($scope.submitting).toBeFalsy();
        expect(window.location).toBeUndefined();
    });
});

});

从不调用AngularJS $ http错误函数

5 个答案: