【socket客户端】.net socket客户端实例代码分享

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.net socket客户端实例代码分享

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Data;

using System.Net;

using System.Threading;

using System.Net.Sockets;

 

namespace W.Common

{

    public class CacheSocket

    {

        public Socket skClient;

        public string ip=string.Empty;

        public int port=-1;

        public int netID;

        // public int timeSleep=1;

 

        //每次接收发送的临时信息

        private byte[] sendData;//发送的信息

        private byte[] receiveData=new byte[1024];//接收信息

        private int receiveN;

        private bool isErr=false;

        //--------

 

        public CacheSocket(int pNetID)

        {

            this.netID=pNetID;

            GetConfig();

            Connection();

            Cmd("netid:" + this.netID);

        }

 

        public CacheSocket(int pNetID, string pIP, int pPort)

        {

            this.ip=pIP;

            this.port=pPort;

            Connection();

            Cmd("netid:" + pNetID);

        }

 

        public string Cmd(string key)

        {

            lock (this)//一个信息发送后再接收为一次完成过程

            {

                this.sendData=Encoding.UTF8.GetBytes(key);

 

                try

                {

                    this.skClient.Send(this.sendData);

                }

                catch (Exception ex)

                {

                    isErr=true;

                    ("Send" + ex.Message).WriteLine();

                    ReSocket(()=> { this.skClient.Send(this.sendData); });

                }

 

                try

                {

                    this.receiveN=this.skClient.Receive(this.receiveData);

                }

                catch (Exception ex)

                {

                    isErr=true;

                    ReSocket(()=> { this.receiveN=this.skClient.Receive(this.receiveData); });

                    ("Receive" + ex.Message).WriteLine();

                }

 

                return Encoding.UTF8.GetString(this.receiveData, 0, this.receiveN);

            }

        }

 

        public delegate void ReSocket_D();

        private void ReSocket(ReSocket_D d)

        {

            if (isErr)

            {

                Connection();

 

                this.sendData=Encoding.UTF8.GetBytes("netid:" + this.netID);

                this.skClient.Send(this.sendData);

 

                this.receiveN=this.skClient.Receive(this.receiveData);

                if (Encoding.UTF8.GetString(this.receiveData, 0, this.receiveN) !="1")

                {

 

                }

 

                d();

                this.isErr=false;

            }

        }

 

        #region 获取IP和端口

        private void GetConfig()

        {

            this.ip="127.0.0.1";   

            this.port=1234;

        }

        #endregion

 

        #region 连接套接字

        private void Connection()

        {

            this.skClient=new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            IPEndPoint ie=new IPEndPoint(IPAddress.Parse(this.ip), this.port);//服务器的IP和端口

            skClient.Connect(ie);

 

            byte[] data=new byte[7];

            this.receiveN=this.skClient.Receive(data);

 

            string s=Encoding.UTF8.GetString(data, 0, this.receiveN);

            if (s !="success")

            {

                throw new Exception("连接不成功" + s);

            }

        }

        #endregion

    }

}

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