客户端程序传送图片到服务器

     IPEndPoint thePoint = new IPEndPoint(IPAddress.Parse(txtIP.Text), int.Parse(txtPort.Text));   
            TCPConnection.StartListening(thePoint, false);
            button1.Text = "监听中";
            button1.Enabled = false;

 NetworkComms.AppendGlobalIncomingPacketHandler<ImageWrapper>("UploadImage", IncomingUploadImage);

  //处理客户端发来的图片
        private void IncomingUploadImage(PacketHeader header, Connection connection, ImageWrapper wrapper)
        {
            try
            {
                //具体的解析工作由通信框架完成
                //从图片包装器中获取到图片文件和图片名称
                Image image = wrapper.Image;
                string fileName = wrapper.ImageName;

             
                //获取文件扩展名
                int index = fileName.LastIndexOf('.');
                string extion = fileName.Substring(
                    index + 1, fileName.Length - index - 1);
                extion = extion.ToLower();
                //设置文件格式
                ImageFormat imageFormat = ImageFormat.Bmp;

                switch (extion)
                {
                    case "jpg":
                    case "jpeg":
                        imageFormat = ImageFormat.Jpeg;
                        break;
                    case "png":
                        imageFormat = ImageFormat.Png;
                        break;
                    case "gif":
                        imageFormat = ImageFormat.Gif;
                        break;
                }                 //此处，我们手工指定了一个保存路径，您可以自定义
                image.Save(@"D:\" + fileName, imageFormat);


                ResMsgContract contract = new ResMsgContract();
                contract.Message = "上传成功";
                //发送回复信息给客户端
                connection.SendObject("ResUploadImage", contract);

            }
            catch (Exception ex)
            {

            }
        }

 //给连接信息对象赋值
            connInfo = new ConnectionInfo(txtIP.Text, int.Parse(txtPort.Text));

            //如果不成功，会弹出异常信息
            newTcpConnection = TCPConnection.GetConnection(connInfo);

            TCPConnection.StartListening(connInfo.LocalEndPoint);

            button1.Enabled = false;
            button1.Text = "连接成功";

  openFileDialog1.Filter = "图片文件|*.jpg|所有文件|*.*";

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {


                string shortFileName = System.IO.Path.GetFileName(openFileDialog1.FileName);
                  
                //图片包装类
                ImageWrapper wrapper = new ImageWrapper(shortFileName, Image.FromFile(openFileDialog1.FileName));

                //发送图片包装类到服务器，并获取返回信息
                ResMsgContract resMessage = newTcpConnection.SendReceiveObject<ResMsgContract>("UploadImage", "ResUploadImage", 8000, wrapper);

                if (resMessage.Message == "上传成功")
                {
                    MessageBox.Show("图片已经上传到服务器");
                }
                else
                {
                    MessageBox.Show("图片没有发送成功");
                }

            }       

  
using System;
using System.Collections.Generic;
using System.Text;
using ProtoBuf;
using System.Drawing;
using System.IO;
using ProtoBuf;

namespace MessageContract
{
    [ProtoContract]
   public class ImageWrapper
  {
      /// <summary>
      /// 把Image对象存储为私有的字节数组
      /// </summary>
      [ProtoMember(1)]
      private byte[] _imageData;
   
      /// <summary>
      /// 图片名称
      /// </summary>
      [ProtoMember(2)]
      public string ImageName { get; set; }
   
      /// <summary>
       /// 图片对象
      /// </summary>
      public Image Image { get; set; }
   
      /// <summary>
      /// 私有的无参数构造函数 反序列化时需要使用
      /// </summary>
      private ImageWrapper() { }
   
      /// <summary>
      /// 创建一个新的 ImageWrapper类
      /// </summary>
      /// <param name="imageName"></param>
      /// <param name="image"></param>
      public ImageWrapper(string imageName, Image image)
      {
          this.ImageName = imageName;
          this.Image = image;
      }
   
      /// <summary>
      ///序列化之前，把图片转化为二进制数据
      /// </summary>
      [ProtoBeforeSerialization]
      private void Serialize()
      {
          if (Image != null)
          {
              //We need to decide how to convert our image to its raw binary form here
              using (MemoryStream inputStream = new MemoryStream())
              {
                  //For basic image types the features are part of the .net framework
                  Image.Save(inputStream, Image.RawFormat);
   
                  //If we wanted to include additional data processing here
                  //such as compression, encryption etc we can still use the features provided by NetworkComms.Net
                  //e.g. see DPSManager.GetDataProcessor<LZMACompressor>()
   
                  //Store the binary image data as bytes[]
                  _imageData = inputStream.ToArray();
              }
          }
      }
   
      /// <summary>
      /// 反序列化时，把二进制数据转化为图片对象
      /// </summary>
      [ProtoAfterDeserialization]
      private void Deserialize()
      {
          MemoryStream ms = new MemoryStream(_imageData);
   
          //If we added custom data processes we have the perform the reverse operations here before 
          //trying to recreate the image object
          //e.g. DPSManager.GetDataProcessor<LZMACompressor>()
   
          Image = Image.FromStream(ms);
          _imageData = null;
      }
  }
}