Socket异步通讯(IOCP)例子源码

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using XuanJiSocket;
using System.Threading;
using System.Net;

namespace ServerDemo
{
    public partial class ServerDemo : Form
    {
        public ServerDemo()
        {
            InitializeComponent();
            Control.CheckForIllegalCrossThreadCalls = false;
        }

        private void bn_Start_Click(object sender, EventArgs e)
        {
            try
            {
                server.InitSocket("127.0.0.1", 9527);
                server.Start();
                lb_ServerInfo.Items.Add("服务端启动成功.!");
                bn_Start.Enabled = false;
            }
            catch (Exception ex)
            {

                lb_ServerInfo.Items.Add(string.Format("启动失败!原因：{0}", ex.Message));
                bn_Start.Enabled = true;
            } 
            
        }
        
        private void bn_Stop_Click(object sender, EventArgs e)
        {
            server.Stop();
        }

        private void bn_Pause_Click(object sender, EventArgs e)
        {
           
        }

        private void bn_Resume_Click(object sender, EventArgs e)
        {
            server.SendToAll("服务端消息:www.xuanjics.com 随机消息:" Guid.NewGuid().ToString());
           
        }
        SocketHelper.TcpServer server; 
        private void ServerDemo_Load(object sender, EventArgs e)
        {
            SocketHelper.pushSockets = new SocketHelper.PushSockets(Rec);
            server = new SocketHelper.TcpServer();
           
        }
        private void Rec(SocketHelper.Sockets sks)
        {
            this.Invoke(new ThreadStart(delegate
              {
                  if (listBox1.Items.Count > 1000)
                  {
                      listBox1.Items.Clear();
                  }
                  if (sks.ex != null)
                  {
                      //在此处理异常信息
                      MessageBox.Show(sks.ex.Message); 
                      //服务端  server.ClientList 已移除,需要用户再次移除

                  }
                  else
                  {
                      if (sks.NewClientFlag)
                      {
                          lb_ServerInfo.Items.Add(string.Format("新客户端:{0}连接成功.!", sks.Ip)); 
                          cmbClient.Items.Add(sks.Ip);
                          labClientCount.Text = (cmbClient.Items.Count).ToString();
                      }
                      byte[] buffer = new byte[sks.Offset];
                      Array.Copy(sks.RecBuffer, buffer, sks.Offset);
                      string str = Encoding.UTF8.GetString(buffer);
                      listBox1.Items.Add(string.Format("客户端{0}发来消息：{1}", sks.Ip, str));
                  }
              }));
        }

        private void btnSendto_Click(object sender, EventArgs e)
        {
            if(cmbClient.SelectedItem!=null)
            {
                server.SendToClient((IPEndPoint)cmbClient.SelectedItem, string.Format("服务端随机消息...{0}", Guid.NewGuid().ToString()));
            }
            
        } 
    }
}