在WCF中使用x-www-form-urlencoded Content-Type

application/x-www-form-urlencoded

application/json

internal class GalleryClientMessageInspector : IClientMessageInspector {
  public object BeforeSendRequest(ref Message request, IClientChannel channel) {
    HttpRequestMessageProperty httpRequestMessage =
      getOrAddRequestMessageProperty(request);

    if (/* this is the one API method using urlencoded data */) {
      httpRequestMessage.Headers[\"Content-Type\"] = \"application/x-www-form-urlencoded\";
    }
  }
  // ...remaining IClientMessageInspector methods...
}

UrlEncoded

[
  OperationContract,
  WebInvoke(UriTemplate = \"\"),
  OverrideMessageFormat(CustomMessageFormat.UrlEncoded) // like this
]
string Login(string user, string password);