ASP.NET Web Api“请求的资源不支持http方法PUT / DELETE”

时间:2017-10-10 13:46:07

标签: c# asp.net iis-express

我正在使用ASP.NET / C#构建API。但是,当尝试发出PUT或DELETE请求时,我收到以下错误:

"The requested resource does not support http method PUT (or DELETE)"

我意识到此问题已在之前讨论过;但是,我已经查看了相关问题的回复(包括this one),但尚未找到解决方案。我已禁用WebDAV并确保在ExtensionlessUrlHanlder中允许使用动词。我的web.config的“webserver”部分如下:

  <system.webServer>
    <modules>
      <remove name="FormsAuthentication" />
      <remove name="WebDAVModule"/>
      <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
      <add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler" />
      <add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler" />
    </modules>
    <httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE, OPTIONS" />
      </customHeaders>
    </httpProtocol>
    <handlers>
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <remove name="OPTIONSVerbHandler" />
      <remove name="WebDAV" />
      <remove name="TRACEVerbHandler" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
  <validation validateIntegratedModeConfiguration="false" />
</system.webServer>

控制器如下:

namespace MidamAPI.Controllers
{
    [RoutePrefix("SupplyItems")] 
    public class SupplyItemsController : ApiController
    {
        UnitOfWork worker = new UnitOfWork();

        [Route("")]
        [HttpGet]
        public string Get()
        {
            IEnumerable<SupplyItemsDTO> dtoList =  Mapper.Map<List<SupplyItem>, List<SupplyItemsDTO>>(worker.SupplyItemRepo.Get().ToList());
            return JsonConvert.SerializeObject(dtoList);
        }

        [Route("{propertyType}")]
        public string Get(String propertyType = "BK")
        {
                 IEnumerable<SupplyItemsDTO> dtoList = null;
            if (propertyType.Equals("POPEYES", StringComparison.CurrentCultureIgnoreCase))
            {dtoList  = Mapper.Map<List<PopeyesSupplyItem>, List<SupplyItemsDTO>>(worker.PopeyesItemRepo.Get().ToList());

            }
            dtoList = Mapper.Map<List<BKSupplyItem>, List<SupplyItemsDTO>>(worker.BKItemRepo.Get().ToList());


            return JsonConvert.SerializeObject(dtoList);
        }

        [Route("{id:int}")]
        public string Get(int id)
        {
            SupplyItemsDTO dto = Mapper.Map<SupplyItem, SupplyItemsDTO>(worker.SupplyItemRepo.GetByID(id)); 

            return JsonConvert.SerializeObject(dto);
        }

           [Route("")]
           [HttpPost]
        public HttpResponseMessage Post([FromBody]SupplyItem itm)
        {
            try
            {
                worker.SupplyItemRepo.Insert(itm);
                worker.Save();
                return Request.CreateResponse(HttpStatusCode.OK, itm);
            }
            catch (Exception ex)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest, ex);
            }

        }

                 [Route("")]
           [HttpDelete]
           public HttpResponseMessage Delete(int id)
           {
               try
               {
                   SupplyItem itm = worker.SupplyItemRepo.GetByID(id);
                   worker.SupplyItemRepo.Delete(itm);
                   worker.Save();
                   return Request.CreateResponse(HttpStatusCode.OK, itm);
               }
               catch(Exception ex)
               {
                   return Request.CreateResponse(HttpStatusCode.BadRequest, ex);
               }
           }

        [Route("")]
        [HttpPut]
        public HttpResponseMessage Put(int id, SupplyItem item) {
            try
            {
                item.ID = id;
                worker.SupplyItemRepo.Update(item);
                return Request.CreateResponse(HttpStatusCode.OK, item);
            }
            catch(Exception ex)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest, ex);
            }
        }
    }
}

GET和POST调用按预期工作。我不想改变applicationhost.config文件,真的以任何方式修改Web服务器(因为这是我的开发机器),或者使用可能代表安全漏洞的标头。

回复标题:

    Access-Control-Allow-Credentials →true
Access-Control-Allow-Headers →Origin, X-Requested-With, Content-Type, Accept, X-Token,Authorization
Access-Control-Allow-Methods →GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Methods →GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Origin →*
Allow →GET
Cache-Control →no-cache
Content-Length →72
Content-Type →application/json; charset=utf-8
Date →Tue, 10 Oct 2017 13:39:03 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?QzpcVmlzdWFsIFN0dWRpbyBQcm9qZWN0c1xNaWRhbWVyaWNhQVBJXE1pZGFtQVBJXHN1cHBseWl0ZW1zXDQ1NA==?=

IIS日志中的请求:

2017-10-10 13:27:35 ::1 PUT /supplyitems/454 - 57263 - ::1 PostmanRuntime/6.3.2 - 405 0 0 0

我的路线:

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

任何建议表示赞赏。我正在使用IIS Express。感谢。

2 个答案:

答案 0 :(得分:1)

您可能仍然安装了一些额外的模块。即使您已经修复了这些问题,您的请求和路线也不会匹配。

您正在忽略您的路线配置,因为您已使用路线属性明确设置路线。您应该将DELETE方法路由属性更新为[Route("{id:int}")]。对于PUT方法,对于你正在做的事情有点不清楚,但我认为你会想做这样的事情: [Route("{id:int}")] [HttpPut] public HttpResponseMessage Put([FromUrl]int id, [FromBody]SupplyItem item) { ...

答案 1 :(得分:0)

我遇到这个错误的冒险是:

您可能因为安装了一些额外的IIS模块而得到这个: WebDAV如果您不需要它,我会将其从您的IIS中删除。

此模块是IIS角色的一部分。 为了摆脱这种情况,请访问: Windows功能 - &gt;打开/关闭Windows功能 - &gt;互联网信息服务 - &gt;万维网服务 - &gt;常见的HTTP功能 - &gt; WebDAV Publishing。

如果你想保持它,你需要在我认为的ISAPI过滤器中添加PUT / DELETE。

有关此处的更多说明:https://stackoverflow.com/a/33552821/4869329