Question

目前我遇到了向web api发布一些数据的问题。我有两个不同的项目。一个项目是运行web api 2.0的Web应用程序。另一个项目是一个简单的控制台应用程序，它创建一个新的http客户端，构建一个json对象，并尝试将其发布到web api控制器。然而，做帖子我一直得到405（方法不允许......）。我在互联网上寻找解决方案。我甚至在IIS Express中检查处理程序，并将其与web.config中的处理程序进行比较。仍然没有运气。

所以这就是我的web api所拥有的：

[RoutePrefix("api/media")]
[Authorize]
public class MultimediaController : ApiController
{
    [HttpPost, Route("test")]
    public IHttpActionResult Store([FromBody] TestRequest request) {
        return Ok(request);
    }
...

接下来，这是我的测试模型：

public class TestRequest {
    public string testProp1 { get; set; }
    public string testProp2 { get; set; }
}

然后，这是我的控制台应用程序尝试执行POST的代码片段：

        private const string testUrl = "/api/media/test/";

        private async Task<bool> RunPostTest()
        {
            var httpClient = CreateHttpClient();
            var content = JsonConvert.SerializeObject(new TestRequest {testProp1 = "hello", testProp2 = "world"});
            var jsonContent = new StringContent(content, Encoding.UTF32, "application/json");

            var response = await httpClient.PostAsync(testUrl, jsonContent);

            if (response.StatusCode != System.Net.HttpStatusCode.OK)
            {
                Console.WriteLine($"Response code: {response.StatusCode}");
                return false;
            }

            return true;
        }

这是我的处理程序的web.config：

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <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>

我检查了iisexpress applicationhost.config。那里有很多处理程序，但我会发布最后几个，因为它们似乎是相关的。另请注意，WebDAV在所有地方都被注释掉了......

        ...
        <add name="TRACEVerbHandler" path="*" verb="TRACE" modules="ProtocolSupportModule" requireAccess="None" />
        <add name="OPTIONSVerbHandler" path="*" verb="OPTIONS" modules="ProtocolSupportModule" requireAccess="None" />
        <add name="ExtensionlessUrl-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
        <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
        <add name="ExtensionlessUrl-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" responseBufferLimit="0" />
        <add name="StaticFile" path="*" verb="*" modules="StaticFileModule,DefaultDocumentModule,DirectoryListingModule" resourceType="Either" requireAccess="Read" />
    </handlers>
</system.webServer>

这会不断返回一个http 405.我在这里有其他方法执行GET，那些终点就好了。

另外值得注意的是，我使用外部应用程序来执行帖子，例如Postman，在体内发送原始json。端点被击中了！似乎它与iisexpress的设置有关，但我可能是错的。

任何人都知道可能是什么情况？或者转介一些可以揭示问题的链接？

响应对象我正在使用立即窗口调试回来：

response
{StatusCode: 405, ReasonPhrase: 'Method Not Allowed', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Pragma: no-cache
  X-SourceFiles: =?UTF-8?B?QzpcVXNlcnNcZ204NDBkXERvY3VtZW50c1xQcm9qZWN0c1xWaXN1YWwgU3R1ZGlvIFByb2plY3RzXEdpdFxNb2JpbGl0eSBDT0VcU0JWVFxTQlZUXFNCVlRcYXBpXG1lZGlhXHRlc3Rc?=
  Cache-Control: no-cache
  Date: Mon, 16 Jan 2017 17:39:32 GMT
  Server: Microsoft-IIS/10.0
  X-AspNet-Version: 4.0.30319
  X-Powered-By: ASP.NET
  Content-Length: 1218
  Allow: POST
  Content-Type: text/html
  Expires: -1
}}
    Content: {System.Net.Http.StreamContent}
    Headers: {Pragma: no-cache
X-SourceFiles: =?UTF-8?B?QzpcVXNlcnNcZ204NDBkXERvY3VtZW50c1xQcm9qZWN0c1xWaXN1YWwgU3R1ZGlvIFByb2plY3RzXEdpdFxNb2JpbGl0eSBDT0VcU0JWVFxTQlZUXFNCVlRcYXBpXG1lZGlhXHRlc3Rc?=
Cache-Control: no-cache
Date: Mon, 16 Jan 2017 17:39:32 GMT
Server: Microsoft-IIS/10.0
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
}
    IsSuccessStatusCode: false
    ReasonPhrase: "Method Not Allowed"
    RequestMessage: {Method: POST, RequestUri: 'http://localhost:45106/api/media/test/', Version: 1.1, Content: System.Net.Http.StringContent, Headers:
{
  Accept: application/json
  Content-Type: application/json; charset=utf-32
  Content-Length: 164
}}
    StatusCode: MethodNotAllowed
    Version: {1.1}

Answer 1

确保您在API项目的<system.webServer>文件的Web.config部分内有以下内容：

<modules runAllManagedModulesForAllRequests="true">
    <remove name="WebDAVModule"/> <!-- add this -->
</modules>

此外，在处理程序部分：

<handlers>
    <remove name="WebDAV" />
    ...
</handlers>

Answer 2

尝试以下操作：添加ExtensionlessUrlHandler*并将其添加回来。它对我有用。

  <modules runAllManagedModulesForAllRequests="true">
    <remove name="WebDAVModule" />
  </modules>
    <handlers>
      <remove name="WebDAV" />
      <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>

httpclient post async返回方法不允许（405）

2 个答案: