??????????????????????????????????????????????????????????????????? - 应用程序开发 - DMForum.NET 官方支持讨论区

Senlan

普通会员

等级：论坛游侠
发帖：106
金钱：310
经验：1675
性别：帅哥
状态：离线
注册：2006-8-5 9:24:00

小中大楼主

开始学习C#了,抄了一例子,老有问题,请老大们帮我看看
[ 2007-11-21 13:51:23 ]

c# 程序代码

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Net.Sockets;
using System.Threading;
namespace p2pChat
{
             public partial class Form1 : Form
             {
                             private bool listenerRun = true;
                             private TcpListener tcpl;
                             private Thread th;

                             public Form1()
                             {
                                             InitializeComponent();
                             }

                             private void Listen()
                             {
                                             try
                                             {
                                                             tcpl = new TcpListener(5656);
                                                             tcpl.Start();
                                                             toolStripStatusLabel2.Text = "正在监听

";
                                                             while (listenerRun)
                                                             {
                                                                             Socket s = tcpl.AcceptSocket();
                                                                             Byte[] stream = new Byte[80];
                                                                             int i = s.Receive(stream);
                                                                             string message = System.Text.Encoding.UTF8.GetString(stream);
                                                                             richTextBox1.AppendText(message);
                                                             }
                                             }
                                             catch (System.Security.SecurityException)
                                             {
                                                             MessageBox.Show("防火墙安全错误！", "错误",
                                                                             MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                                             }
                                             catch (Exception)
                                             {
                                                             toolStripStatusLabel2.Text = "有错误发生,已停止监听！";
                                             }
                             }
                             private void Send()
                             {
                                             try
                                             {
                                                             string msg = "<" + textBox3.Text + ">" + textBox2.Text;
                                                             TcpClient tcpc = new TcpClient(textBox1.Text, 5656);
                                                             NetworkStream tcpStream = tcpc.GetStream();
                                                             StreamWriter reqStreamW = new StreamWriter(tcpStream);
                                                             reqStreamW.Write(msg);
                                                             reqStreamW.Flush();
                                                             tcpStream.Close();
                                                             tcpc.Close();
                                                             richTextBox1.AppendText(msg);
                                                             textBox2.Clear();
                                             }
                                             catch (Exception)
                                             {
                                                             toolStripStatusLabel2.Text = "目标计算机拒绝连接请求！";
                                             }
                             }
                             private void Stop()
                             {
                                             tcpl.Stop();
                                             th.Abort();
                             }

                             [STAThread]

                             private void button1_Click(object sender, System.EventArgs e)
                             {
                                             button1.Enabled = false;
                                             button2.Enabled = true;
                                             Thread th = new Thread(new ThreadStart(Listen));
                                             th.Start();
                             }
                             private void button2_Click(object sender, System.EventArgs e)
                             {
                                             button1.Enabled = true;
                                             button2.Enabled = false;
                                             listenerRun = false;
                                             Stop();
                             }
                             private void button3_Click(object sender, System.EventArgs e)
                             {
                                             //MessageBox.Show("防火墙安全错误", "错误");
                                             Send();
                             }
                             private void button4_Click(object sender, EventArgs e)
                             {

                                             Application.Exit();
                             }



             }

}

现在的问题是，点＂开始监听＂，状态栏能显示已经开始监听，但是点＂发送消息＂和＂停止监听＂却没有一点反应，程序就停在那里

看了很多次书上的例子，没有发现在错误，但是就是不能正常运行．．．

那位高手帮看看，谢谢了

上传的附件 rar