form1.cs

原代码详细说明是关于c++方面的希望可以帮助大家使用

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

namespace Exam7_14_Cllient
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	/// 
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.Button button2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.button2 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(8, 40);
			this.textBox1.Multiline = true;
			this.textBox1.Name = "textBox1";
			this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
			this.textBox1.Size = new System.Drawing.Size(264, 96);
			this.textBox1.TabIndex = 0;
			this.textBox1.Text = "";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(16, 8);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(248, 24);
			this.button1.TabIndex = 1;
			this.button1.Text = "连接服务器";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(16, 144);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(184, 21);
			this.textBox2.TabIndex = 2;
			this.textBox2.Text = "";
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(208, 144);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(56, 24);
			this.button2.TabIndex = 3;
			this.button2.Text = "发送";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(280, 173);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox1);
			this.Name = "Form1";
			this.Text = "客户端";
			this.Closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
        private StateObject state;
		private void button1_Click(object sender, System.EventArgs e)
		{
			try 
			{
				IPAddress ipAddress =IPAddress.Parse("127.0.0.1"); 
				IPEndPoint remoteEP = new IPEndPoint(ipAddress, 5555);
				Socket clientSocket = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);
				clientSocket.BeginConnect( remoteEP, new AsyncCallback(ConnectCallback), clientSocket);
			} 
			catch (Exception ee) 
			{
				Console.WriteLine(ee.ToString());
			}
	
		}

		private  void ConnectCallback(IAsyncResult ar) 
		{
			try 
			{
				Socket clientSocket = (Socket)ar.AsyncState;
				clientSocket.EndConnect(ar);
				state = new StateObject();
				state.workSocket = clientSocket;
				Send("客户进入聊天室");
				clientSocket.BeginReceive( state.buffer, 0, StateObject.BufferSize, 0,new AsyncCallback(ReadCallback), state);
			} 
			catch (Exception e) 
			{
				Console.WriteLine(e.ToString());
			}
		}
		public void ReadCallback(IAsyncResult ar) 
		{
		  	
			// 从异步状态对象中获得State对象和客户套接字.
			StateObject state = (StateObject) ar.AsyncState;
			Socket clientSocket = state.workSocket;
			// 从客户套接字读取数据 
			int bytesRead = clientSocket.EndReceive(ar);
			if (bytesRead > 0) 
			{
				String str=Encoding.Unicode.GetString(state.buffer,0,bytesRead);
				textBox1.AppendText("服务器对客户端说:"+str+"\r\n");			
			}
			//继续接收
			clientSocket.BeginReceive( state.buffer, 0, StateObject.BufferSize, 0,
				new AsyncCallback(ReadCallback), state);
		}
		private  void Send(String data) 
		{
			byte[] byteData = Encoding.Unicode.GetBytes(data);
			// 启动异步发送数据
			state.workSocket.BeginSend(byteData, 0, byteData.Length, 0,
				new AsyncCallback(SendCallback), state);
		}
		private  void SendCallback(IAsyncResult ar) 
		{
			try 
			{
				Socket clientSocket = (Socket) ar.AsyncState;
				//完成发送.
				int bytesSent = clientSocket.EndSend(ar);
			} 
			catch (Exception e) 
			{
				Console.WriteLine(e.ToString());
			}
		}
		private void button2_Click(object sender, System.EventArgs e)
		{
			textBox1.AppendText("客户端对服务器说:"+textBox2.Text+"\r\n");
			Send(textBox2.Text);
		}
		private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
		{
			//try
			//{
				state.workSocket.Shutdown(SocketShutdown.Both);
				state.workSocket.Close();
			//}
			//catch(Exception){}
		}
	}
	public class StateObject 
	{
		public Socket workSocket = null;//客户套接字
		public const int BufferSize = 1024;//缓冲区大小
		public byte[] buffer = new byte[BufferSize];//缓冲区
	}
}