C# 服务端

来源：互联网发布：sql注入绕过安全狗编辑：程序博客网时间：2024/05/01 18:05
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using System.Net;using System.Net.Sockets;using System.Threading;namespace 服务器端{    public partial class Form1 : Form    {        //字段声明        TcpListener tcpListener;//TCP监听        NetworkStream ns;//网络数据流        Thread listenThread;//监听线程        TcpClient tcpClient;//TCP客户        //回调        private delegate void ShowMsgCallBack(string msg);        ShowMsgCallBack showMsgCallBack;        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            showMsgCallBack = new ShowMsgCallBack(ShowMsg);        }        private void btnlisten_Click(object sender, EventArgs e)        {            IPEndPoint ipEndPoint = new IPEndPoint(IPAddress.Parse(txtIP.Text), Convert.ToInt32(txtPort.Text));            try            {                tcpListener = new TcpListener(ipEndPoint);                tcpListener.Start();                listenThread = new Thread(listen);                listenThread.IsBackground = true;                listenThread.Start();                //修改按钮状态                btnlisten.Enabled = false;                btnbreak.Enabled = true;                btnSend.Enabled = true;            }            catch (Exception ex)            {                MessageBox.Show(ex.Message);            }        }        private void listen()        {            try            {                tcpClient=tcpListener.AcceptTcpClient();                ns=tcpClient.GetStream();                while(true)                {                    int reader=tcpClient.Available;                    if(reader>0)                    {                        byte []getDate=new byte[reader];                        ns.Read(getDate,0,getDate.Length);                        string msg=Encoding.Default.GetString(getDate);                        lstMsg.Invoke(showMsgCallBack,msg);                    }                }            }            catch (ThreadAbortException e)            {                //人为断开线程不用管            }            catch (Exception e)            {                MessageBox.Show(e.Message);            }        }        private void ShowMsg(string msg)        {            lstMsg.Items.Add(msg);        }        private void btnbreak_Click(object sender, EventArgs e)        {            tcpListener.Stop();            listenThread.Abort();            ns.Dispose();            //修改控件状态            btnbreak.Enabled = false;            btnlisten.Enabled = true;            btnSend.Enabled = false;        }        private void btnSend_Click(object sender, EventArgs e)        {            byte [] sendData = Encoding.Default.GetBytes(txtMsg.Text);            ns.Write(sendData, 0, sendData.Length);        }            }}
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