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.net socket客户端实例代码分享

2017年12月12日  | 移动技术网IT编程  | 我要评论

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客户端代码

复制代码 代码如下:

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

    }

}

使用方法

复制代码 代码如下:

 public static readonly cachesocket cac=new cachesocket(2);

 cac.cmd("发送内容");
 

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