最初的版本是這樣的：點擊打開鏈接。但一直沒有調好，所以就咨詢了一下同事翔哥，最後初步搞定！
客戶端代碼：
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.Sockets;
using System.Threading;
using System.Net;
using System.Diagnostics;
namespace SocketClient
{
public partial class Client : Form
{
Socket vsServerSocket;
Thread vsClientThread;
string strIP = "127.0.0.1";
public delegate void PassString(string strMsg);
int nPort = 9001;
public Client()
{
InitializeComponent();
}
public void SetSendData(string strMsg)
{
if (tBoxClientSend.InvokeRequired == true)
{
PassString d = new PassString(SetSendData);
this.Invoke(d, new object[] { strMsg });
}
else
{
tBoxClientSend.Text = strMsg;
}
}
public void SetRecvData(string strMsg)
{
if (tBoxClientReceive.InvokeRequired == true)
{
PassString d = new PassString(SetRecvData);
this.Invoke(d, new object[] { strMsg });
}
else
{
tBoxClientReceive.Text = strMsg;
}
}
private void ClientHandle()
{
string strRecv = string.Empty;
//IPEndPoint其實就是一個IP地址和端口的綁定，可以代表一個服務，用來Socket通訊。
//IPAddress類中有一個 Parse()方法，可以把點分的十進制IP表示轉化成IPAddress類
IPEndPoint ipep = new IPEndPoint(IPAddress.Parse(strIP), nPort);
//創建套接字實例
//這裡創建的時候用ProtocolType.Tcp，表示建立一個面向連接(TCP)的Socket
vsServerSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
//將所創建的套接字與IPEndPoint綁定
vsServerSocket.Bind(ipep);
}
catch (SocketException ex)
{
MessageBox.Show("Connect Error: " + ex.Message);
return;
}
Byte[] buffer = new Byte[1024];
//設置套接字為收聽模式
vsServerSocket.Listen(10);
//循環監聽
while (true)
{
//接收服務器信息
int bufLen = 0;
try
{
Socket vsClientSocket = vsServerSocket.Accept();
bufLen=vsClientSocket.Receive(buffer);
vsClientSocket.Send(Encoding.ASCII.GetBytes("aaaaa"), 5, SocketFlags.None);
}
catch (Exception ex)
{
MessageBox.Show("Receive Error:" + ex.Message);
}
strRecv = Encoding.ASCII.GetString(buffer, 0, bufLen);
SetRecvData(strRecv);
//vsClientSocket.Shutdown(SocketShutdown.Both);
//vsClientSocket.Close();
}
}
//發送數據
private void btnSend_Click(object sender, EventArgs e)
{
byte[] data = new byte[1024];
string ss = tBoxClientSend.Text;
Socket centerClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint GsServer = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9002);
centerClient.Connect(GsServer);
centerClient.Send(Encoding.ASCII.GetBytes(ss));
centerClient.Close();
}
private void Client_Load(object sender, EventArgs e)
{
//連接服務器
//通過ThreadStart委托告訴子線程講執行什麼方法
vsClientThread = new Thread(new ThreadStart(ClientHandle));
vsClientThread.Start();
}
//窗體關閉時殺死客戶端進程
private void Client_FormClosing(object sender, FormClosingEventArgs e)
{
KillProcess();
}
//殺死客戶端進程
private void KillProcess()
{
Process[] processes = Process.GetProcessesByName("SocketClient");
foreach (Process process in processes)
{
process.Kill();
break;
}
}
}
}服務端代碼：
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;
using System.Diagnostics;
namespace SocketServer
{
public partial class Server : Form
{
Thread vsServerThread;
Socket vsServerSocket;
string strIP = "127.0.0.1";
public delegate void PassString(string strMsg);
int nPort = 9002;
public Server()
{
InitializeComponent();
}
private void SeverSendData(string strMsg)
{
//Control.InvokeRequired 屬性,命名空間： System.Windows.Forms
//獲取一個值，該值指示調用方在對控件進行方法調用時是否必須調用 Invoke 方法，因為調用方位於創建控件所在的線程以外的線程中。
if (tBoxServerSend.InvokeRequired == true)
{
//Control.Invoke 方法 (Delegate)
//在擁有此控件的基礎窗口句柄的線程上執行指定的委托。
PassString d = new PassString(SeverSendData);
this.Invoke(d, new object[] { strMsg });
}
else
{
tBoxServerSend.Text = strMsg;
}
}
private void SeverRecvData(string strMsg)
{
if (tBoxServerReceive.InvokeRequired == true)
{
PassString d = new PassString(SeverRecvData);
this.Invoke(d, new object[] { strMsg });
}
else
{
tBoxServerReceive.Text = strMsg;
}
}
private void ServerStart()
{
string strRecv = string.Empty;
//創建IPEndPoint實例
IPEndPoint ipep = new IPEndPoint(IPAddress.Parse(strIP), nPort);
//創建一個套接字
vsServerSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//將所創建的套接字與IPEndPoint綁定
try
{
vsServerSocket.Bind(ipep);
}
catch (Exception ee)
{
MessageBox.Show(ee.ToString());
return;
}
//設置套接字為收聽模式
vsServerSocket.Listen(10);
int bufLen = 0;
//循環監聽
while (true)
{
//在套接字上接收接入的連接
Socket vsClientSocket = vsServerSocket.Accept();
try
{
Byte[] buffer = new Byte[1024];
//在套接字上接收客戶端發送的信息
bufLen = vsClientSocket.Receive(buffer);
vsClientSocket.Send(Encoding.ASCII.GetBytes("aaaaa"), 5, SocketFlags.None);
if (bufLen == 0)
continue;
//將指定字節數組中的一個字節序列解碼為一個字符串。
strRecv = Encoding.ASCII.GetString(buffer, 0, bufLen);
SeverRecvData(strRecv.ToString());
}
catch (Exception ex)
{
MessageBox.Show("Listening Error: " + ex.Message);
vsClientSocket.Close();
vsServerSocket.Close();
}
}
}
private void btnSend_Click(object sender, EventArgs e)
{
byte[] data = new byte[1024];
string ss = tBoxServerSend.Text;
Socket centerClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint GsServer = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 9001);
centerClient.Connect(GsServer);
centerClient.Send(Encoding.ASCII.GetBytes(ss));
centerClient.Send(Encoding.ASCII.GetBytes(ss));
//Thread.Sleep(100);
//centerClient.Close();
}
private void Server_Load(object sender, EventArgs e)
{
vsServerThread = new Thread(new ThreadStart(ServerStart));
vsServerThread.Start();
}
//窗體關閉時殺死客戶端進程
private void Server_FormClosing(object sender, FormClosingEventArgs e)
{
KillProcess();
}
//殺死客戶端進程
private void KillProcess()
{
Process[] processes = Process.GetProcessesByName("Server");
foreach (Process process in processes)
{
process.Kill();
break;
}
}
}
}
效果如下：
客戶端可以發送消息給服務端，服務端也可以發送消息給客戶端。
缺點：
現在服務端只能連接一個客戶端
