private string MessageToString(ref Message message)

 {

     WebContentFormat messageFormat = this.GetMessageContentFormat(message);

     MemoryStream ms = new MemoryStream();

     XmlDictionaryWriter writer = null;

     switch (messageFormat)

     {

         case WebContentFormat.Default:

         case WebContentFormat.Xml:

             writer = XmlDictionaryWriter.CreateTextWriter(ms);

             break;

         case WebContentFormat.Json:

             writer = JsonReaderWriterFactory.CreateJsonWriter(ms);

             break;

         case WebContentFormat.Raw:

             return this.ReadRawBody(ref message);

     } 

     message.WriteMessage(writer);

     writer.Flush();

     string messageBody = Encoding.UTF8.GetString(ms.ToArray()); 

     ms.Position = ;

     // 这里需要将message重新写入

     XmlDictionaryReader reader;

     if (messageFormat == WebContentFormat.Json)

     {

         reader = JsonReaderWriterFactory.CreateJsonReader(ms, XmlDictionaryReaderQuotas.Max);

     }

     else

     {

         reader = XmlDictionaryReader.CreateTextReader(ms, XmlDictionaryReaderQuotas.Max);

     } 

     Message newMessage = Message.CreateMessage(reader, int.MaxValue, message.Version);

     newMessage.Properties.CopyProperties(message.Properties);

     message = newMessage; 

     return messageBody;

 }

    private WebContentFormat GetMessageContentFormat(Message message)

 {

     WebContentFormat format = WebContentFormat.Default;

     if (message.Properties.ContainsKey(WebBodyFormatMessageProperty.Name))

     {

         WebBodyFormatMessageProperty bodyFormat;

         bodyFormat = (WebBodyFormatMessageProperty)message.Properties[WebBodyFormatMessageProperty.Name];

         format = bodyFormat.Format;

     } 

     return format;

 }

    private string ReadRawBody(ref Message message)

 {

     XmlDictionaryReader bodyReader = message.GetReaderAtBodyContents();

     bodyReader.ReadStartElement("Binary");

     byte[] bodyBytes = bodyReader.ReadContentAsBase64();

     string messageBody = Encoding.UTF8.GetString(bodyBytes); 

     // Now to recreate the message

     MemoryStream ms = new MemoryStream();

     XmlDictionaryWriter writer = XmlDictionaryWriter.CreateBinaryWriter(ms);

     writer.WriteStartElement("Binary");

     writer.WriteBase64(bodyBytes, , bodyBytes.Length);

     writer.WriteEndElement();

     writer.Flush();

     ms.Position = ;

     XmlDictionaryReader reader = XmlDictionaryReader.CreateBinaryReader(ms, XmlDictionaryReaderQuotas.Max);

     Message newMessage = Message.CreateMessage(reader, int.MaxValue, message.Version);

     newMessage.Properties.CopyProperties(message.Properties);

     message = newMessage; 

     return messageBody;

 }