PUT和Delete不能与Windows Azure上的ASP.NET WebAPI和数据库一起使用

Question

我正在使用基本的CRUD操作开发ASP.NET WebAPI项目.该项目在本地运行,并在Windows Azure中有一个示例数据库.

到目前为止,Http GET和POST工作正常,给我200和201.但我正在努力与DELETE和POST.我更改了Web.config中的处理程序,删除了WebDav,但这些都没有用.同时启用CORS和[AcceptVerbs]等各种属性也不起作用.

知道我做错了什么吗？

提琴手原始输出:

HTTP/1.1 405 Method Not Allowed
Cache-Control: no-cache
Pragma: no-cache
Allow: GET
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?QzpcVXNlcnNcTWFyY1xPbmVEcml2ZVxEb2t1bWVudGVcRmlcVnNQcm9qZWt0ZVxONTIwMTQwODI1XE41XE41XGFwaVxwcm9kdWN0XDEwODM=?=
X-Powered-By: ASP.NET
Date: Sun, 14 Sep 2014 15:00:43 GMT
Content-Length: 75

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

Web.config文件:

<system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true">
      <remove name="WebDAVModule" />
    </modules>
    <handlers>
      <remove name="WebDAV" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT" type="System.Web.Handlers.TransferRequestHandler" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
 </system.webServer>

控制器:

 public class ProductController : BaseApiController
    {
        public ProductController(IRepository<Product> repo)
            : base(repo)
        {

        }

        [HttpGet]
        public IEnumerable<Product> Get()
        {
            //...
        }

        [HttpGet]
        public Product Get(int id)
        {
            //...
        }

        [HttpPost]
        public HttpResponseMessage Post([FromBody] Product product)
        {
           //...
        }

        [HttpPut]
        public HttpResponseMessage Put(int productId, [FromBody] Product product)
        {
            //..
        }

        [HttpDelete]
        public HttpResponseMessage Delete(int productId)
        {
            //..
        }

    }

路由和格式化程序:

 public static void Register(HttpConfiguration config)
    {
        // Web API configuration and services
        // Configure Web API to use only bearer token authentication.
        config.SuppressDefaultHostAuthentication();
        config.Filters.Add(new HostAuthenticationFilter(OAuthDefaults.AuthenticationType));


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

        // Custom Formatters:
        config.Formatters.XmlFormatter.SupportedMediaTypes.Remove(
            config.Formatters.XmlFormatter.SupportedMediaTypes.FirstOrDefault(t => t.MediaType == "application/xml"));

        var jsonFormatter = config.Formatters.OfType<JsonMediaTypeFormatter>().First();
        jsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
    }
}

Answer 1

最后我发现了我搞砸了什么.两种控制器方法(Post和Put)中Id(productId)的命名必须与自定义路由(id)中的命名相同.当我将它从productId更改为id时,POST和PUT都在fiddler中工作.之后,我将Web.config设置切换回默认设置.这是我改变的:

控制器:

    [HttpPut]
    public HttpResponseMessage Put(int id, [FromBody] Product product)
    {
        //..
    }

    [HttpDelete]
    public HttpResponseMessage Delete(int id)
    {
        //..
    }

Web.config文件:

<system.webServer>
<modules>
  <remove name="FormsAuthentication" />
</modules>
<handlers>
  <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
  <remove name="OPTIONSVerbHandler" />
  <remove name="TRACEVerbHandler" />
  <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>

Answer 2

"ASP.NET Web API 2中的属性路由"(2014年1月20日)文章告诉我们以下内容;

路由是Web API将URI与操作匹配的方式.Web API 2支持一种新类型的路由,称为属性路由.

(请参阅:"ASP.NET Web API 2中的属性路由")

因此,从Web API 2开始,您还可以通过使用您希望命名的占位符添加路径属性[到相关方法]来修复它.

[HttpDelete]
[Route("api/product/{productId}")]
public HttpResponseMessage Delete(int productId)
{
    if (values.Count > productId) {
        values.RemoveAt(productId);
    }
}

在我自己的代码中测试过,因为我遇到了同样的问题,它就像一个魅力!