求socket 发送和接受字符串源码？？？？

[hongcha99]

求socket 发送和接受字符串源码？？？？

[hongcha99]

有更好的吗？

[qiuqingpo]

http://topic.csdn.net/u/20080623/08/4bbd2475-45f1-42e3-a613-16b094759ade.html
看看这个吧.很好的呀.
小弟给你找一个吧
http://www.google.com/search?hl=en&newwindow=1&safe=active&q=C%23+socket%E6%93%8D%E4%BD%9Ccsdn&aq=f&aqi=&aql=&oq=&gs_rfai=

[xy230837]

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Text.RegularExpressions;

namespace client
{
    class Client
    {
        private int port;
        private Socket sock;
        private const int BUFFERSIZE = 65535;
        private byte[] buf;
        private EndPoint server;
        private EndPoint client;
        private EndPoint EPTemp;
        public delegate void DataCaptureHandler(string str);
        public event DataCaptureHandler DataCaptrued, ClientCaptrued;

        public Client(string serverip, int port)
        {
            server = (EndPoint)(new IPEndPoint(IPAddress.Parse(serverip), port));
            
            buf = new byte[BUFFERSIZE];

            sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            int tempport = 5000;
            while (true)
            {
                try
                {
                    IPEndPoint MyServer = new IPEndPoint(IPAddress.Any, tempport);
                    sock.Bind(MyServer);
                    break;
                }
                catch
                {
                    tempport++;
                }
            }
            EPTemp = (EndPoint)(new IPEndPoint(IPAddress.Any, 0));
            sock.BeginReceiveFrom(buf, 0, BUFFERSIZE, SocketFlags.None, ref EPTemp, new AsyncCallback(ReadCallback), null);
        }

        public void Send(string str)
        {
            if (client != null)
            {
                byte[] data = Encoding.ASCII.GetBytes(str);
                sock.SendTo(data, data.Length, SocketFlags.None, client);
            }
        }

        public void Send(byte[] data)
        {
            sock.SendTo(data, data.Length, SocketFlags.None, server);
        }

        private void ReadCallback(IAsyncResult ar)
        {
            try
            {
                int bytesRead = sock.EndReceiveFrom(ar, ref EPTemp);

                if (bytesRead > 0)
                {
                    this.Push(buf, 0, bytesRead);

                    sock.BeginReceiveFrom(buf, 0, BUFFERSIZE, SocketFlags.None, ref EPTemp, new AsyncCallback(ReadCallback), null);
                }
                else
                {
                    sock.Shutdown(SocketShutdown.Both);
                    sock.Close();
                }
            }
            catch
            {
                throw new Exception("连接断开");
            }
        }

        private void Push(byte[] buf, int p, int bytesRead)
        {
            if (EPTemp.Equals(server))
            {
                string str = Encoding.ASCII.GetString(buf, p, bytesRead);
                if (ClientCaptrued != null)
                {
                    ClientCaptrued("客户端IP:"+str);
                }
                string[] temp = Regex.Split(str.ToString(), ":");
                client = (EndPoint)(new IPEndPoint(IPAddress.Parse(temp[0]), Convert.ToInt32(temp[1])));
                return;
            }
            string str1 = Encoding.ASCII.GetString(buf, p, bytesRead);
            if (DataCaptrued != null)
            {
                DataCaptrued(str1);
            }
        }
    }
}