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。
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。