2017-10-10 161 views
0

我正在使用ASP.NET/C#构建API。但是,试图利用任何一PUT或DELETE请求时,我收到以下错误:ASP.NET Web Api“请求的资源不支持http方法PUT/DELETE”

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

我意识到这个问题已经讨论过;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。我禁用了WebDAV并确保在ExtensionlessUrlHanlder中允许动词。我的web.config的 “网络服务器” 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); 
      } 
     } 
    } 
} 

的GET和POST预期调用工作。我不想更改applicationhost.config文件,真正以任何方式修改Web服务器(因为这是我的开发计算机),或者使用可能代表安全漏洞的头文件。

响应标头:

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==?= 

在IIS日志的请求:

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

我的路由:

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。谢谢。

+1

你应该阅读关于CORS。如果您在安装此Google插件后仍然收到此问题,请尝试。 https://chrome.google.com/webstore/detail/allow-control-allow-origi/nlfbmbojpeacfghkpbjhddihlkkiljbi?hl=zh_CN。如果允许,则意味着您需要在应用程序中为CORS设置正确的配置。希望能帮助到你! –

回答

1

你可能仍然安装一些额外的模块。即使您修复了这些问题,您的请求和路线也不会匹配。

您的路由配置被忽略,因为您已经使用路由属性明确设置了路由。您应该将您的DELETE方法路由属性更新为[Route("{id:int}")]。对于PUT方法,对于你在做什么有点不清楚,但我会假设你会想要做这样的事情: [Route("{id:int}")] [HttpPut] public HttpResponseMessage Put([FromUrl]int id, [FromBody]SupplyItem item) { ...

+0

就我而言,这原来就是答案。在PUT和DELETE方法上放置[Route(“{id:int}”)]]。感谢所有的答复;在我看来,这完全是一个错误。 – KellyMarchewa

0

与错误对我来说,冒险是:

您获得的可能是因为你已经安装了一些额外的IIS组件: WebDAV如果你不需要它,我只想从IIS中删除。

此模块是IIS角色的一部分。 为了摆脱它: Windows功能 - >打开/关闭Windows功能 - > Internet信息服务 - >万维网服务 - >通用HTTP功能 - > WebDAV发布。

如果你想保持它,你需要添加PUT/DELETE到我认为的ISAPI过滤器。

关于这里更多的解释:https://stackoverflow.com/a/33552821/4869329

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