Socket服务器与客户端双向通信实例

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Socket服务器与客户端双向通信实例

整理整理前些天做的一个关于Socket的客户端与服务器之间相互通信的例子
基于Socket的即时通信 分为：客户端与服务器两部分！
服务器端的Socket绑定本机的ip地址
客户端的Socket则根据服务器的ip地址连接到服务器
之后服务器与客户端之间就能通过Socket进行通信了！
以下是服务器端代码
服务器的主要功能就是一直处于监听状态 监听来自客户端的Socket的请求

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;//添加命名空间
using System.Threading;//添加命名空间

namespace WFAsynSocket
{
public partial class Form1 : Form
{

Thread LisThread;
Socket LisSocket;
Socket newSocket;
EndPoint point;
string strmes = String.Empty;
int port = 8000;//定义侦听端口号
public Form1()
{
InitializeComponent();
}

private void btn_Listen_Click(object sender, EventArgs e)
{
LisThread = new Thread(new ThreadStart(BeginListern));//开线程执行BeginListern方法
LisThread.Start();//线程开始执行
}
public IPAddress GetIP()
{ /*获取本地服务器的ip地址 */
IPHostEntry iep = Dns.GetHostEntry(Dns.GetHostName());
IPAddress ip = iep.AddressList[0];
return ip;
}
public void BeginListern()
{
LisSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//实例化Socket
IPAddress ServerIp = GetIP();/*获取本地服务器的ip地址 */
IPEndPoint iep = new IPEndPoint(ServerIp, port);

LisSocket.Bind(iep); /*将Socket绑定ip */
toolStripStatusLabel1.Text = iep.ToString() + "正在监听

";
LisSocket.Listen(50); //Socket开始监听
newSocket = LisSocket.Accept();//获取连接请求的Socket
/*接收客户端Socket所发的信息 */
while (true)
{
try
{

byte[] byteMessage = new byte[100];

newSocket.Receive(byteMessage);//接收信息
MessageBox.Show(Encoding.Default.GetString(byteMessage));
Control.CheckForIllegalCrossThreadCalls = false;
point = newSocket.RemoteEndPoint;//获取客户端的Socket的相关信息
IPEndPoint IPpoint = (IPEndPoint)point;
strmes+=IPpoint.Address.ToString()+ " " +DateTime.Now.ToString()+"说"+Encoding.Default.GetString(byteMessage).Trim(new char[] { '/0' })+"/r/n";
this.richTextBox1.Text=strmes;
}
catch (SocketException ex)
{
toolStripStatusLabel1.Text += ex.ToString();
}
}
}

private void btn_Cancel_Click(object sender, EventArgs e)
{
try
{
LisSocket.Close();//关闭Socket
LisThread.Abort();//线程停止
LisThread=null;

}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
Application.Exit();
}
}

private void btn_Send_Click(object sender, EventArgs e)
{
byte[] byteData = Encoding.Default.GetBytes(this.richTextBox2.Text);
newSocket.Send(byteData);//发送信息即由服务器往客户端上发信息

}
}
}

点击开始监听按钮之后



客户端则只要使用Socket去连接到服务器端的Socket就可实现往服务器上发信息

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

namespace WFAsynSoketClient
{
public partial class Form1 : Form
{
public static Socket ClientSocket;
public Form1()
{
InitializeComponent();
}
/*往服务器上发送信息按钮事件*/
private void btn_Send_Click(object sender, EventArgs e)
{
if (ClientSocket.Connected)//判断Socket是否已连接
{

byte[] SendMessage = new byte[100];
SendMessage = Encoding.ASCII.GetBytes(this.richTextBox1.Text);
ClientSocket.Send(SendMessage);//从数据中的指示位置开始将数据发送到连接的Socket。
MessageBox.Show(Encoding.Default.GetString(SendMessage)+"发送成功!");

}
else
{
MessageBox.Show("未建立连接！");
}
}
/*退出按钮*/
private void btn_Cancel_Click(object sender, EventArgs e)
{

ClientSocket.Shutdown(SocketShutdown.Both);//发送完成之后停止Socket
ClientSocket.Close();//发送完成之后关闭Socket
Application.Exit();

}
/*接收来自服务器上的信息*/
public void targett()
{
this.toolStripStatusLabel1.Text = "已经建立连接准备接受数据";
while (true)
{
byte[] bytes = new byte[100];
int rev = ClientSocket.Receive(bytes,bytes.Length,0);//将数据从连接的 Socket 接收到接收缓冲区的特定位置。
if (rev <= 0)
{
break;
}
string strev = System.Text.Encoding.Default.GetString(bytes);
this.textBox1.AppendText("服务器对客户端说:"+strev+"/r/n");
}
}

private void Form1_Load(object sender, EventArgs e)
{

}
/* 为客户端Socket建立连接到服务器*/
private void button1_Click(object sender, EventArgs e)
{
ClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
string ip = "192.168.1.26";//服务器ip
IPAddress ipa = IPAddress.Parse(ip);
IPEndPoint iep = new IPEndPoint(ipa, 8000);
this.toolStripStatusLabel1.Text = "已经建立连接

.";
Control.CheckForIllegalCrossThreadCalls = false;
try
{
ClientSocket.Connect(iep);//连接到服务器
Thread thread = new Thread(new ThreadStart(targett));
thread.Start();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
}

客户端界面为：



运行效果为：



以上采用的是同步Socket通信方式