关于Socket通信

[aith1986]

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

namespace PPChat
{
    public partial class testsocket : Form
    { 
        protected static TcpListener tcpListener = null;//监听器
        private static bool IsStart = false;//开始标记 
        private Socket mySocket = null;//连接进来的套接字
        public testsocket()
        {
            InitializeComponent();
        }

        //打开连接
        private void btnOpen_Click(object sender, EventArgs e)
        {
            try
            {
                tcpListener = new TcpListener(IPAddress.Parse("127.0.0.1"), 1234);
                tcpListener.Start();                
                rtbMsg.AppendText("正在监听...");
                //创建一个线程用于后台监听,不有线程不行??不是很明白
                System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(Listen));
                thread.IsBackground = true;
                btnOpen.Enabled = false;
                thread.Start();//监听线程开始      
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }        
        }


        ///         /// 侦听函数        ///
        private void Listen()
        {
            IsStart = true;
            try
            {
                while (IsStart)
                {//不断监听                    
                    if (tcpListener.Pending())
                    {
                        mySocket =tcpListener.AcceptSocket();//接收所有连接进来的套接字
                        Byte[] bs = new Byte[11111];//字节数组,用于传送字节数据  
                        mySocket.Receive(bs);//接收数据并存入bs中                         
                        string message = System.Text.Encoding.UTF8.GetString(bs);//转换为UTF8格式字符串 
                        rtbMsg.AppendText(message);//追加到接收框中
                        mySocket.Close();//应不应该关闭这个套接口呢?
                    }
                    System.Threading.Thread.Sleep(200);//线程挂起200ms..不然CPU狂飙哦..
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
        //发送函数
        private void Send()
        {
            //Socket sock = null;
            //sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            //sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 5000);
            //sock.Connect(IPAddress.Parse("10.0.0.35"), 1234);
            //if (sock.Connected)
            //    MessageBox.Show("OK");


            string msg = "[15]说: " + txtSend.Text + "\n";//获取发送消息
            //Byte[] outbytes = System.Text.Encoding.Default.GetBytes(msg.ToCharArray());
            TcpClient tcp2 = new TcpClient();
            tcp2.Connect(IPAddress.Parse("127.0.0.1"), 1234);//建立连接
            NetworkStream ns = tcp2.GetStream();//提供用于网络访问的基础数据流。            
            StreamWriter sw = new StreamWriter(ns);
            sw.Write(msg);
            sw.Flush();
            sw.Close();
            tcp2.Close();
            txtSend.Clear();
        }  
        //监听停止
        private void btnStop_Click(object sender, EventArgs e)
        {
            IsStart = false;//开始设为false  
            tcpListener.Stop();//关闭监听            
            rtbMsg.AppendText("监听停止");
            btnOpen.Enabled = true; 
        }
        //发送信息函数
        private void btnSend_Click(object sender, EventArgs e)
        {
            Send();
        }    
    }
}

小弟在自己机子上试写Socket通信，为什么点了发送按钮后没执行接受端监听函数里的Receive（）这个函数

[捷哥1999]

如果你要用TcpClient连接TcpListener的话，好像不应该用

tcpListener.AcceptSocket();

估计要用

tcpListener.AcceptTcpClient();

我修改成下面的代码就可以了

           Byte[] outbytes = System.Text.Encoding.Default.GetBytes(msg.ToCharArray());
            //TcpClient tcp2 = new TcpClient();
            //tcp2.Connect(IPAddress.Parse("127.0.0.1"), 1234);//建立连接
            //NetworkStream ns = tcp2.GetStream();//提供用于网络访问的基础数据流。            
            //StreamWriter sw = new StreamWriter(ns);
            //sw.Write(msg);
            //sw.Flush();
            //sw.Close();
            //tcp2.Close();
            IPEndPoint ipe = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 1234);
            Socket clientSocket = new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
            clientSocket.Connect(ipe);
            if (clientSocket.Connected)
                clientSocket.Send(outbytes);
            txtSend.Clear();

[zzxap]

http://topic.csdn.net/u/20080327/01/e0818d51-d804-4b04-98aa-7135df8cdb7c.html?477775313

[zzxap]

http://hi.baidu.com/jackeyrain/blog/item/98cdfea8b5dba3b7cb130cdd.html

[code=C#]
C#的TCPClient连接(转)
2007-05-25 14:12
using System.Net;
using System.Net.Sockets;
TcpClient tcpClient = new TcpClient();
tcpClient.Connect("192.168.0.80", 23);
try
{
byte[] Data = new Byte[1024];
NetworkStream nsData = tcpClient.GetStream();
Int32 bytes=nsData.Read(Data, 0, Data.Length);
string receiveData = Encoding.ASCII.GetString(Data, 0, bytes);
tcpClient.Close();
this.textBox1.Text = receiveData;
}
catch
{
MessageBox.Show(e.ToString());
}
获取本机IP的方法：
System.Net.IPAddress addr = new System.Net.IPAddress(Dns.GetHostByName(Dns.GetHostName()).AddressList[0].Address);
或
string s =null;
IPAddress[] addressList =new Dns.GetHostByName(Dns.GetHostName()).AddressList;
for (int i = 0; i < addressList.Length; i++)
{
s += addressList[i].ToString();
MessageBox.Show(s);
}
或
//MSDN推荐采用Dns.GetHostEntry方法
string addressIP = null;
string hostName = Dns.GetHostName(); //获取主机名
IPAddress[] addressIPList = Dns.GetHostEntry(hostName).AddressList;
for (int i = 0; i < addressIPList.Length; i++)
{
addressIP = addressIPList[i].ToString();
MessageBox.Show(addressIP);
}
[/CODE]

[程序员Linc]

...
顶

[genius_tong]

UP~

[aith1986]

解决了，谢谢大家