WCF Http Get 方法返回 400 Bad Request

原因在於沒有設定WFC支援Http行為

 

解決方案是將webconfig檔案改成下面的格式：

<?xml version="1.0"?><configuration>  <system.web>    <compilation debug="true" targetFramework="4.0" />  </system.web>  <system.serviceModel>    <protocolMapping>      <add scheme="http" binding="webHttpBinding"/>    </protocolMapping>    <behaviors>      <serviceBehaviors>        <behavior>          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above 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="false"/>        </behavior>      </serviceBehaviors>      <endpointBehaviors>        <behavior>          <webHttp/>        </behavior>      </endpointBehaviors>    </behaviors>    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />  </system.serviceModel> <system.webServer>    <modules runAllManagedModulesForAllRequests="true"/>  </system.webServer>   </configuration>

關鍵在

<system.serviceModel>    <protocolMapping>        <add scheme="http" binding="webHttpBinding"/>    </protocolMapping>    <behaviors><system.serviceModel>

和

<system.serviceModel>    -----    </protocolMapping>    <behaviors>        <endpointBehaviors>            <behavior>                <webHttp />            </behavior >        </endpointBehaviors>    <behaviors>    ------<system.serviceModel> 

參考來源：stackoverflow