c# 聊天服务器 不能启动监听！！！！

Question

http://zhidao.baidu.com/question/337247508.html?fr=im100009
这个有什么问题啊 
高手帮看看 
 具体如下：namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        public static  IPAddress localaddr = IPAddress.Parse("127.0.0.1");        TcpListener listener = new TcpListener(localaddr  ,8888);        private void button1_Click(object sender, EventArgs e)
        {
            listener.Start();
            textBox1.Text = "服务器启动";
       // NetworkStream stream = new NetworkStream(sockets);           clientconnect();
             
        }       private  void clientconnect() 
        {
            while (true)
            {
                textBox1.Text = "等待客户连接！";
                try
                {
                    TcpClient newclient  = listener.AcceptTcpClient();
                }
                catch { break; }
                textBox1.Text = "有客户连接了！";
               //  Console.WriteLine("有客户连接了！");
            }
        }
          
    }
}
就想自己一步步编一个 结果电启动按钮后 就程序不能相应了 单步调试 显示能执行到监听啊 咋回事求高手指点 帮帮我这小菜鸟吧 
小弟不胜感激！！！

Answer 1

winfrom
程序 你的程序没有跑完 当然死在那边了啊 1·！~ 你要启动监听的时候，启动一个线程，当连接断开的时候 线程消亡  ，这样就不会死机了

Answer 2

因为侦听是放在UI线程的，侦听时，导致UI线程挂起，请创建Thread实例新开一个侦听线程，或者使用异步侦听

Answer 3

  private void Server(bool IsServer)//开始或停止服务
        {
            if (IsServer)
                this.sockUDP1.Listen(3211);
            else
                this.sockUDP1.CloseSock();
        }
public void Listen(int Port) 
{ 
try 
{ 
UDP_Server_Port = Port; 
UDP_Server = new  UdpClient(Port); 
// UDP_Server = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Udp) ;  thdUdp = new Thread(new ThreadStart(GetUDPData) ); 
thdUdp.Start(); 
} 
catch (Exception e) 
{ 
if (Sock_Error!= null)
Sock_Error(e.ToString()); 
} 
} 

Answer 4

using System;
using System.IO;
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;
using System.Threading;namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.FormClosing += new FormClosingEventHandler(Form1_FormClosing);
        }
        
        TcpClient newclient;
        Thread nth;
        
        Boolean star = false;
        public static  IPAddress localaddr = IPAddress.Parse("127.0.0.1");        TcpListener listener = new TcpListener(localaddr  ,8888);        private void button1_Click(object sender, EventArgs e)
        {   
            listener.Start();
            textBox1.Text = "服务器启动";
            nth = new Thread(new ThreadStart (clientconnect ));
            nth.Start();
            
     
        }       private  void clientconnect() 
        {
            while (true)
            {                try
                {
                    newclient = listener.AcceptTcpClient();
                    textBox1.Text = "有客户连接了！";
                }
                catch { break; }                //  Console.WriteLine("有客户连接了！");                NetworkStream ns = newclient.GetStream();
                BinaryReader nsr = new BinaryReader(ns);
                BinaryWriter nsw = new BinaryWriter(ns);
                star = true;
                while (star)
                {
                    textBox1.Text = nsr.ReadString();
                }
                nsr.Close();
                nsw.Close();
                ns.Close();
            }
        }
       private void Form1_FormClosing(object sender, FormClosingEventArgs e)
       {
           star = false;
           listener.Stop();
           //newclient.Close();
         
       }
          
    }
}
为什么 只能连一个客户端啊？

Answer 5

while 里面的newclient = TcpClient newclient
改成TcpClient newclient = TcpClient newclient
就能连多个了

Answer 6

服务器端
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.Threading;
namespace _0111109
{
    public partial class Form1 : Form
    {
        private IPAddress myIP = IPAddress.Parse("127.0.0.1");
        private IPEndPoint MyServer;
        private Socket sock;
        private bool check=true;
        private Socket accSock;
        public Form1()
        {
            InitializeComponent();
        }
        private void accp()
        {
            MyServer=new IPEndPoint(myIP,Int32.Parse(textBox2.Text));
            sock=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
            sock.Bind(MyServer);
            sock.Listen(50);
            MessageBox.Show("成功开监听");
        //    textBox3.AppendText("主机"+textBox1.Text+"端口"+textBox2.Text+"开始监听.....\r\n");
            while (check)
            {
            accSock = sock.Accept();
            if (accSock.Connected)   // 
            {
                textBox3.AppendText("与客户建立连接,");
                Thread thread = new Thread(new ThreadStart(round));
                thread.Start();
             
                    byte[] Rec=new byte[64];
                    NetworkStream netStream=new NetworkStream(accSock);
                    netStream.Read(Rec,0,Rec.Length);
                    string RecMessage=
                        System.Text.Encoding.BigEndianUnicode.GetString(Rec);
                    richTextBox1.AppendText(RecMessage+"\r\n");
                }
            }        }
        private void round()
        {
            while (true)
            {
                byte[] Rec = new Byte[64];
                NetworkStream netStream = new NetworkStream(accSock);
                netStream.Read(Rec, 0, Rec.Length);
                String RecMessage =
                    System.Text.Encoding.BigEndianUnicode.GetString(Rec);
                richTextBox1.AppendText(RecMessage + "\r\n");
            }
        }
        private void Form1_Load(object sender, EventArgs e)
        {        }        private void textBox3_TextChanged(object sender, EventArgs e)
        {        }        private void label1_Click(object sender, EventArgs e)
        {        }        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {        }        private void label4_Click(object sender, EventArgs e)
        {        }        private void label5_Click(object sender, EventArgs e)
        {        }        private void button1_Click(object sender, EventArgs e)
        {        }        private void button3_Click(object sender, EventArgs e)
        {
            try
            {sock.Close();
                textBox3.AppendText("主机"+textBox1.Text+"端口"+textBox2.Text+"监听停止!\r\n");
            }
            catch{MessageBox.Show("监听尚未开始，关闭无效!");}        }        private void button1_Click_1(object sender, EventArgs e)
        {
            try
            {
                myIP = IPAddress.Parse(textBox1.Text);
            }
            catch { MessageBox.Show("您输入的IP地址格式下正确,请重新输入!"); }
            try
            {
                Thread thread = new Thread(new ThreadStart(accp));
                thread.Start();
            }
            catch (Exception ee) { textBox3.AppendText(ee.Message); }
        }        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                byte[] sendByte = new byte[64];
                String send = richTextBox2.Text + "\r\n";
                NetworkStream netStream = new NetworkStream(accSock);
                sendByte = System.Text.Encoding.BigEndianUnicode.GetBytes(send.ToCharArray());
                netStream.Write(sendByte, 0, sendByte.Length);
             //   netStream.Flush();
            }
            catch { MessageBox.Show("连接尚未建立！无法发送!!!"); }
        }
    }
}

Answer 7

客户端
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.Threading;
namespace _01111092
{
    public partial class Form1 : Form            //  partial
    {
        private IPEndPoint MyServer;
        private Socket connectSock;
        private bool check = true;
        private IPAddress myIP = IPAddress.Parse("127.0.0.1");
        public Form1()
        {
            InitializeComponent();
        }
        private void receive()
        {
            while (true)
            {
                byte[] Rec = new Byte[64];
                NetworkStream netStream = new NetworkStream(connectSock);
                netStream.Read(Rec, 0, Rec.Length);
                String RecMessage =
                System.Text.Encoding.BigEndianUnicode.GetString(Rec);
                richTextBox1.AppendText(RecMessage + "\r\n");
            }
          
        }
        private void Form1_Load(object sender, EventArgs e)
        {        }        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                myIP = IPAddress.Parse(textBox1.Text);
            }
            catch { MessageBox.Show("输入的IP地址格式不正确,请重新输入!"); }
            try
            {
                MyServer=new IPEndPoint(myIP,Int32.Parse(textBox2.Text));
                connectSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                connectSock.Connect(MyServer);
                textBox3.AppendText("与主机" + textBox1.Text + "端口" + textBox2.Text + "连接成功!\r\n");
                Thread thread=new Thread(new ThreadStart(receive));
                thread.Start();
            }
            catch(Exception ee){MessageBox.Show(ee.Message);}
        }        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                byte[] sendByte = new byte[64];
                String send = richTextBox2.Text + "\r\n";
                NetworkStream netStream = new NetworkStream(connectSock);
                sendByte = System.Text.Encoding.BigEndianUnicode.GetBytes(send.ToCharArray());
                netStream.Write(sendByte, 0, sendByte.Length);
                netStream.Flush();
            }
            catch { MessageBox.Show("连接尚未建立！无法发送!!!"); }
        }        private void button3_Click(object sender, EventArgs e)
        {
            try
            {
               connectSock.Close();
              //  this.Close();
                textBox3.AppendText("与主机" + textBox1.Text + "端口" + textBox2.Text + "断开连接!\r\n");
            }
            catch { MessageBox.Show("连接尚未建立，断开无效"); }
        }
       
        
    }
}