Question

我的Web-API-2应用程序正在使用Route属性来定义路由，但它似乎无法正常工作：从后端返回错误405或404。操作方法未启动搜索（内部有断点）。

我的代码，请求和响应如下：

JS代码：

var url ='/api/customers/search/',
var config = {
                params: {
                    page: 0,
                    pageSize: 4,
                    filter: $scope.filterCustomers
                }
            };
$http.get(url, config).then(function (result) {
                        success(result);
                    }, function (error) {
                        if (error.status == '401') {
                            notificationService.displayError('Authentication required.');
                            $rootScope.previousState = $location.path();
                            $location.path('/login');
                        }
                        else if (failure != null) {
                            failure(error);
                        }
                    });

后端控制器的代码：

//[Authorize(Roles = "Admin")]
[RoutePrefix("api/customers")]
public class CustomersController : ApiControllerBase
{
    private readonly IEntityBaseRepository<Customer> _customersRepository;

    public CustomersController(IEntityBaseRepository<Customer> customersRepository,
        IEntityBaseRepository<Error> _errorsRepository, IUnitOfWork _unitOfWork)
        : base(_errorsRepository, _unitOfWork)
    {
        _customersRepository = customersRepository;
    }


    //[Route("search/?{page:int=0}&{pageSize=4}")]
    [Route("search/?{page:int=0}/{pageSize=4}/{filter?}")]
    [HttpGet]
    public HttpResponseMessage Search(HttpRequestMessage request, int? page, int? pageSize, string filter = null)
    {
        int currentPage = page.Value;
        int currentPageSize = pageSize.Value;
...

Class WebApiConfig：

public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API configuration and services

            //use authetication handler
            config.MessageHandlers.Add(new HomeCinemaAuthHandler());

            // Enable Route attributes
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );
        }
    }

Global.asax.css：

public class Global : HttpApplication
    {
        void Application_Start(object sender, EventArgs e)
        {

            var config = GlobalConfiguration.Configuration;

            AreaRegistration.RegisterAllAreas();

            //Use web api routes
            WebApiConfig.Register(config);

            //Autofac, Automapper, ...
            Bootstrapper.Run();

            //Use mvc routes
            RouteConfig.RegisterRoutes(RouteTable.Routes);



            //register bundles
            BundleConfig.RegisterBundles(BundleTable.Bundles);

            GlobalConfiguration.Configuration.EnsureInitialized();

        }
    }

我的要求：

GET http://localhost:65386/api/customers/search/?page=0&pageSize=4 HTTP/1.1
Accept: application/json, text/plain, */*
Referer: http://localhost:65386/
Accept-Language: pl-PL
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
Host: localhost:65386
Connection: Keep-Alive

我的回答：

HTTP/1.1 405 Method Not Allowed
Cache-Control: no-cache
Pragma: no-cache
Allow: POST
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/10.0
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B?QzpcIXdvcmtcVmlkZW9SZW50YWxcSG9tZUNpbmVtYS5XZWJcYXBpXGN1c3RvbWVyc1xzZWFyY2hc?=
X-Powered-By: ASP.NET
Date: Sun, 05 Mar 2017 09:47:27 GMT
Content-Length: 72

{"Message":"The requested resource does not support http method 'GET'."}

=======================

更新1：

我将JS代码更改为：

 apiService.get('/api/customers/search', config, customersLoadCompleted, customersLoadFailed);

和控制器：

 [HttpGet]
 [Route("search")]
 public HttpResponseMessage Get(HttpRequestMessage request, int? page, int? pageSize, string filter = null)
{

它有效：）。

但是当控制器有动作时：

[HttpGet]
 [Route("search")]
 public HttpResponseMessage Search(HttpRequestMessage request, int? page, int? pageSize, string filter = null)
 { 
...

错误仍然是错误405方法不允许。为什么呢？

Answer 1

您对params.UpdateExpression = 'SET #checkIns = list_append(:newCheckIn, if_not_exists(#checkIns, :empty_list))';的获取请求与您的路由配置不符。

//localhost:65386/api/customers/search/?page=0&pageSize=4定义了4个路由属性：

搜索
{页：= 0}？
{的pageSize = 4}
{滤波器？}

这会导致您的第一个错误：混合查询字符串和路由配置。如果您想使用查询字符串，只需使用它们即可。它们不属于路径属性。这会使您的路线配置无效。

您现在有2个选择：删除页面属性前的问号，并将获取请求更改为

[Route("search/?{page:int=0}/{pageSize=4}/{filter?}")]

或删除路径数据注释，并使用普通查询字符串：[Route("search/{page:int=0}/{pageSize=4}/{filter?}")] //localhost:65386/api/customers/search/0/4/optional-filter-value

Answer 2

我找到了解决方案:)我是我的愚蠢错误:)。我添加了错误的名称空间

using System.Web.Mvc;

而不是

using System.Web.Http;

它起作用但很奇怪:)。

Answer 3

基础警报！ System.Web.Http一个用于Web API; System.Web.Mvc一个用于以前的MVC版本。 MVC是Web应用程序，Web API是HTTP服务。

Route属性未按预期工作

3 个答案: