asp.net-web-api – ASP.NET Web API – 404删除

我试图在Web API控制器上实现一个Delete方法.但是,我总是得到404 – 找不到.在这一点上,我有GET,POST和PUT方法工作正常.我一直在阅读一些关于同样问题的其他SO帖子 – 没有一个是正常的.

控制器动作

public virtual HttpResponseMessage Delete(string customerId)
{
    adapter.RemoveCustomer(customerId);
    return Request.CreateResponse(HttpStatusCode.OK,"The customer was deleted.");
}

AJAX请求

function remove(customer,success,error) {
    var url = '/api/Customer';
    var data = JSON.stringify({ 'customerId': customer.CustomerId });
    $.ajax({
        url: url,type: 'DELETE',data: data,contentType: 'application/json'
    })
    .done(function (data,textStatus,handler) {
        success(data);
    })
    .fail(function (handler,errorThrown) {
        error(errorThrown);
    });
};

Web.Config

这是我的web.config文件.除了模块部分,一切都与创建项目时相同：

<system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <!--<modules runAllManagedModulesForAllRequests="true"></modules>-->
    <modules>
      <remove name="UrlRoutingModule-4.0" />
      <add name="UrlRoutingModule-4.0" type="System.Web.Routing.UrlRoutingModule" preCondition="" />
    </modules>
    <handlers>
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%Microsoft.NETFrameworkv4.0.30319aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%Microsoft.NETFramework64v4.0.30319aspnet_isapi.dll" preCondition="classicMode,bitness64" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
</system.webServer>

我正在使用IIS Express,但如果我切换回Visual Studio Development Server,仍然会出现此问题.

原始HTTP

以下是Fiddler捕获的原始HTTP请求：

DELETE http://localhost:63654/TestMvcApplication/api/Customer HTTP/1.1
Host: localhost:63654
Connection: keep-alive
Content-Length: 49
Accept: application/json,text/javascript,*/*; q=0.01
Origin: http://localhost:63654
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/27.0.1453.116 Safari/537.36
Content-Type: application/json
Referer: http://localhost:63654/TestMvcApplication/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8

{"customerId":"e107e2dc20834545ae209849bff195f0"}

这里是回应：

HTTP/1.1 404 Not Found
Cache-Control: no-cache
Pragma: no-cache
Content-Type: application/json; charset=utf-8
Expires: -1
Server: Microsoft-IIS/8.0
X-AspNet-Version: 4.0.30319
X-SourceFiles: =?UTF-8?B?QzpcVXNlcnNcdHBhcmtzXERvY3VtZW50c1xHaXRIdWJcVGVzdE12Y0FwcGxpY2F0aW9uXFRlc3RNdmNBcHBsaWNhdGlvblxhcGlcQ3VzdG9tZXI=?=
X-Powered-By: ASP.NET
Date: Tue,02 Jul 2013 13:11:52 GMT
Content-Length: 220

{"Message":"No HTTP resource was found that matches the request URI 'http://localhost:63654/TestMvcApplication/api/Customer'.","MessageDetail":"No action was found on the controller 'Customer' that matches the request."}

这是一个开源的project,用于教我自己.我已经检查了最新的情况,如果有人想看到完整的来源.

解决方法

public virtual HttpResponseMessage Delete(string customerId)

参数是一个简单的类型,并且来自URI,而不是来自请求体.或者将查询字符串中的客户ID传递给http：// localhost：63654 / TestMvcApplication / api / Customer？customerId = 123或将签名更改为公共虚拟HttpResponseMessage Delete(string id)并使用URI http：// localhost ：63654 / TestMvcApplication / API /客户/ 123.

（编辑：安卓应用网）

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