wcf服務返回“方法不允許”錯誤

Question

我正在嘗試將對象參數作為json格式傳遞給wcf restful service。

像這樣的服務conratc代碼;

[WebInvoke(
    Method = "POST",
    BodyStyle = WebMessageBodyStyle.Wrapped,
    ResponseFormat = WebMessageFormat.Json,
    RequestFormat = WebMessageFormat.Json,
    UriTemplate="PR")]
[OperationContract]
TWorkRequestPostResult PostRequest(TWorkRequestPostArgs args);

和我的web.config文件一樣;

<system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information, set the value below to false before deployment -->
          <serviceMetadata httpGetEnabled="true" />
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true">
      <remove name="WebDAVModule"/>
    </modules>
    <!--
        To browse web app root directory during debugging, set the value below to true.
        Set to false before deployment to avoid disclosing web app folder information.
      -->
    <directoryBrowse enabled="true" />
  </system.webServer>  

當我嘗試使用“http：// localhost / serviceurl / PR”url調用服務時，Service返回“Method not allowed”錯誤消息。

Answer 1

你是從瀏覽器調用服務嗎？ 如果是這樣，瀏覽器使用HTTP GET請求服務，而服務方法映射到HTTP POST， Method = "POST" ，從而導致錯誤"Method not allowed" 。

要修復，如果對REST有意義或嘗試從支持POST的工具調用服務方法，請更改為Method = "GET" ，例如Fiddler或WcfTestClient