C#网络编程问题麻烦大家帮看看

Question

服务端代码
using System;
namespace ConsoleApplication1
{
    class ServerStart
    {
        static void Main(string[] args)
        {
            Console.Write("服务器已启动");
            new Listener().StartListener();
        }
    }
}
using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.Threading;
using System.IO;
namespace ConsoleApplication1
{
    public class Listener
    {
        private TcpListener tListnner;
        private List<TcpClient> clientList = new List<TcpClient>();
        public Listener()
        {
            tListnner = new TcpListener(1024);
            tListnner.Start();
            Thread t = new Thread(new ThreadStart(StartListener));
            t.Start();
        }
        public void StartListener()
        {
            while (true)
            {
                TcpClient client = tListnner.AcceptTcpClient();
                clientList.Add(client);
                InInfo(client);//调用读取信息方法;
            }
        }
        public void InInfo(TcpClient client)
        {
            StreamReader sr = new StreamReader(client.GetStream());
            string value = null;
            try
            {
                value = sr.ReadLine();
            }
            catch (Exception)
            {
                //clientList.RemoveAt(clientList.Count - 1);
                return;
            }
            while ((value != null))
            {
                value = value + "\n";
                try
                {
                    value = sr.ReadLine();
                    SendInfo(value);//调用发送信息方法;
                }
                catch (Exception) { }
            }
        }
        public void SendInfo(string sb)
        {
            foreach (TcpClient t in clientList)
            {
                StreamWriter sw = new StreamWriter(t.GetStream());
                sw.WriteLine(sb);
                sw.Flush();
            }
        }
    }
}
客户端代码using System;
using System.Collections.Generic;
using System.Windows.Forms;namespace WindowsApplication1
{
    static class StartClient
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}
[code=C#]
namespace WindowsApplication1
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (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.button1 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(334, 271);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "发送";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // textBox1
            // 
            this.textBox1.Dock = System.Windows.Forms.DockStyle.Top;
            this.textBox1.Location = new System.Drawing.Point(0, 0);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(431, 234);
            this.textBox1.TabIndex = 1;
            // 
            // textBox2
            // 
            this.textBox2.Location = new System.Drawing.Point(3, 272);
            this.textBox2.Name = "textBox2";
            this.textBox2.Size = new System.Drawing.Size(325, 21);
            this.textBox2.TabIndex = 2;
            this.textBox2.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox2_KeyPress);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(334, 241);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 3;
            this.button2.Text = "连接";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(7, 253);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(239, 12);
            this.label1.TabIndex = 4;
            this.label1.Text = "文明聊天...本版本不完善只是无聊做起耍的";
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(431, 307);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.textBox2);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button1);
            this.ImeMode = System.Windows.Forms.ImeMode.NoControl;
            this.Name = "Form1";
            this.Text = "无聊口水ver1.0";
            this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.Form1_FormClosed);
            this.ResumeLayout(false);
            this.PerformLayout();        }        #endregion        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.TextBox textBox2;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
    }
}

Answer 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Threading;
namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        private TcpClient t = null;
        private StreamWriter sw = null;
        private StreamReader sr = null;
        private string serverAddress;
        public string ServerAddress
        {
            set { serverAddress = value; }
        }        private int port;
        public int Port
        {
            set { port = value; }
        }
        public Form1()
        {
            InitializeComponent();
        }
        //退出时调用..;
        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (sw != null)
            {
                sw = new StreamWriter(t.GetStream());
                sw.WriteLine("myexit...");
            }
            try
            {
                CloseAll();
            }
            catch (Exception) { }
        }
        private void CloseAll()
        {
            if (sw != null)
                this.sw.Close();
            if (sr != null)
                this.sr.Close();
            if (t != null)
                this.t.Close();
        }
        //连接按扭的事件;
        private void button2_Click(object sender, EventArgs e)
        {
            new LandForm(this).ShowDialog();
        }        public void LandServer()
        {
            t = new TcpClient(serverAddress,port);
            Thread thread = new Thread(new ThreadStart(inInfo));
            thread.Start();
        }        //发送的事件按扭;
        private void button1_Click(object sender, EventArgs e)
        {
            if (t == null)
            {
                MessageBox.Show("请先连接!");
                return;
            }
            string sb = textBox2.Text.Trim();
            if ("".Equals(sb))
            {
                return;
            }
            if (sw == null)
                sw = new StreamWriter(t.GetStream());
            sw.WriteLine(sb);
            sw.Flush();
            textBox2.Text = "";
        }
        private void inInfo()
        {
            try
            {
                while (true)
                {
                    if (sr == null)
                        sr = new StreamReader(t.GetStream());
                    string value = sr.ReadLine();
                    Console.Write(value);
                    while (value != null)
                    {
                        textBox1.AppendText(value + "\n\n");
                        value = sr.ReadLine();
                    }
                }
            }
            catch (Exception e) { }
        }        private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Enter)
            {
                button1_Click(null, null);
                textBox2.Focus();
            }
        }
    }
}

Answer 2

namespace WindowsApplication1
{
    partial class LandForm
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (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.button1 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(71, 82);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(65, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "确定";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(12, 22);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(53, 12);
            this.label1.TabIndex = 1;
            this.label1.Text = "服务地址";
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(12, 58);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(29, 12);
            this.label2.TabIndex = 2;
            this.label2.Text = "端口";
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(83, 17);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(100, 21);
            this.textBox1.TabIndex = 3;
            // 
            // textBox2
            // 
            this.textBox2.Location = new System.Drawing.Point(83, 49);
            this.textBox2.Name = "textBox2";
            this.textBox2.Size = new System.Drawing.Size(100, 21);
            this.textBox2.TabIndex = 4;
            this.textBox2.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox2_KeyPress);
            // 
            // LandForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(222, 117);
            this.Controls.Add(this.textBox2);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.button1);
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "LandForm";
            this.Text = "登陆";
            this.ResumeLayout(false);
            this.PerformLayout();        }        #endregion        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.TextBox textBox2;
    }
}

Answer 3

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace WindowsApplication1
{
    public partial class LandForm : Form
    {
        private Form1 f = null;
        public LandForm(Form1 f)
        {
            this.f = f;
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            string address = textBox1.Text;
            string port = textBox2.Text;
            f.ServerAddress = address;
            f.Port = int.Parse(port);
            f.LandServer();
            this.Close();
        }        private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Enter)
            {
                button1_Click(null, null);
            }
        }    }
}现在问题是第一次发送的时候没有显示。。要第二次发送才有。。怎么会丢失了第一次。。找了半天没找到。。