Socket套接字实现客户端连接

  1using System;
  2using System.Drawing;
  3using System.Collections;
  4using System.ComponentModel;
  5using System.Windows.Forms;
  6using System.Data;
  7// 新添加的命名空间。
  8using System.Net;
  9using System.Net.Sockets;
 10using System.Text;
 11using System.IO;
 12
 13namespace SocketClient
 14{
 15    /**//// <summary>
 16    /// Socket套接字实现客户端连接。
 17    /// </summary>
 18    public class Form1 : System.Windows.Forms.Form
 19    {
 20        private System.Windows.Forms.Button button1;
 21        private System.Windows.Forms.RichTextBox richTextBox1;
 22        /**//// <summary>
 23        /// 必需的设计器变量。
 24        /// </summary>
 25        private System.ComponentModel.Container components = null;
 26
 27        public Form1()
 28        {
 29            //
 30            // Windows 窗体设计器支持所必需的
 31            //
 32            InitializeComponent();
 33
 34            //
 35            // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
 36            //
 37        }
 38
 39        /**//// <summary>
 40        /// 清理所有正在使用的资源。
 41        /// </summary>
 42        protected override void Dispose( bool disposing )
 43        {
 44            if( disposing )
 45            {
 46                if (components != null)
 47                {
 48                    components.Dispose();
 49                }
 50            }
 51            base.Dispose( disposing );
 52        }
 53
 54        Windows Form Designer generated code#region Windows Form Designer generated code
 55        /**//// <summary>
 56        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
 57        /// 此方法的内容。
 58        /// </summary>
 59        private void InitializeComponent()
 60        {
 61            this.button1 = new System.Windows.Forms.Button();
 62            this.richTextBox1 = new System.Windows.Forms.RichTextBox();
 63            this.SuspendLayout();
 64            //
 65            // button1
 66            //
 67            this.button1.Location = new System.Drawing.Point(168, 272);
 68            this.button1.Name = "button1";
 69            this.button1.TabIndex = 0;
 70            this.button1.Text = "连接";
 71            this.button1.TextAlign = System.Drawing.ContentAlignment.TopCenter;
 72            this.button1.Click += new System.EventHandler(this.button1_Click);
 73            //
 74            // richTextBox1
 75            //
 76            this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Top;
 77            this.richTextBox1.Name = "richTextBox1";
 78            this.richTextBox1.Size = new System.Drawing.Size(432, 264);
 79            this.richTextBox1.TabIndex = 1;
 80            this.richTextBox1.Text = "";
 81            //
 82            // Form1
 83            //
 84            this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
 85            this.ClientSize = new System.Drawing.Size(432, 304);
 86            this.Controls.AddRange(new System.Windows.Forms.Control[] {
 87                this.richTextBox1,
 88                this.button1});
 89            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
 90            this.Name = "Form1";
 91            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
 92            this.Text = "客户端";
 93            this.ResumeLayout(false);
 94        }
 95        #endregion
 96
 97        /**//// <summary>
 98        /// 应用程序的主入口点。
 99        /// </summary>
100        [STAThread]
101        static void Main()
102        {
103            Application.Run(new Form1());
104        }
105
106        private void button1_Click(object sender, System.EventArgs e)
107        {
108            // 服务器IP地址
109            IPAddress        serIP;
110            // 服务器节点
111            IPEndPoint        server;
112            // 客户端Socket
113            Socket            client;
114            // 客户端网络数据流
115            NetworkStream    stream;
116            // 客户端写数据流
117            TextWriter        writer;
118            // 客户端读数据流
119            TextReader        reader;
120
121            serIP = IPAddress.Parse("218.66.48.230");
122            server = new IPEndPoint(serIP,34567);
123            client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
124            client.Connect(server);
125            if(client.Connected)
126            {
127                stream = new NetworkStream(client);
128                writer = new StreamWriter(stream);
129                reader = new StreamReader(stream);
130                richTextBox1.Text += "连接到服务器\n";
131                richTextBox1.Text += reader.ReadLine();
132                richTextBox1.Text += reader.ReadLine();
133                richTextBox1.Text += "\n";
134                writer.WriteLine("你好，服务器，很高兴能和你通讯，谢谢。");
135                writer.Flush();
136                reader.Close();
137                writer.Close();
138                stream.Close();
139                client.Close();
140            }
141        }
142    }
143}
144