C# socket编程 异步服务端 同步客户端

异步服务端

using  System;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Data;
using  System.Drawing;
using  System.Text;
using  System.Windows.Forms;
using  System.Threading;
using  System.Net;
using  System.Net.Sockets;

namespace  Gps_GateWay
... {
    
    public partial class Form1 : Form
    ...{
        public static ManualResetEvent allDone = new ManualResetEvent(false);
        private Thread th;
        private bool listenerRun = true;
        Socket listener;
        private const int maxsocket = 10;
       
        public Form1()
        ...{
            InitializeComponent();
        }

        private IPAddress GetLocalIP()
        ...{
            IPHostEntry iphostentry = Dns.GetHostByName(Dns.GetHostName());
            return iphostentry.AddressList[0];
        }

        private void Listen()
        ...{
            try
            ...{
                int port = int.Parse(txtPort.Text);
                IPAddress ipaddress = GetLocalIP();
                IPEndPoint ipendpoint = new IPEndPoint(ipaddress, port);
                listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                listener.Bind(ipendpoint);
                listener.Listen(50);
                while (listenerRun)
                ...{
                    allDone.Reset();
                    listener.BeginAccept(new AsyncCallback(AcceptCallBack), listener);
                    allDone.WaitOne();
                }
            }
            catch (Exception Err)
            ...{
                MessageBox.Show(Err.Message);
            }
        }

        private delegate void GetLstControl(string hostname, string remoteip, string remoteport);

        private void GetLstStr(string hostname, string remoteip, string remoteport)
        ...{
            lstIP.Items.Add("[" + hostname + "] " + remoteip + ":" + remoteport);
        }


        private void AcceptCallBack(IAsyncResult ar)
        ...{
            try
            ...{
                allDone.Set();
                Socket sok = (Socket)ar.AsyncState;
                Socket client = sok.EndAccept(ar);
                
                StateObject state = new StateObject();
                state.workSocket = client;


                EndPoint remoteendpoint = client.RemoteEndPoint;
                IPEndPoint ipendpoint = (IPEndPoint)remoteendpoint;
                string remoteip = ipendpoint.Address.ToString();
                string remoteport = ipendpoint.Port.ToString();

                IPHostEntry iphostentry = Dns.GetHostByAddress(ipendpoint.Address);
                string hostname = iphostentry.HostName;
                GetLstControl getlst = new GetLstControl(GetLstStr);
                this.BeginInvoke(getlst,new object[]...{hostname,remoteip,remoteport});

                client.BeginReceive(state.buffer, 0,StateObject.BufferSize,0, new AsyncCallback(ReadCallBack), state);
            }
            catch (Exception Err)
            ...{
               // MessageBox.Show(Err.Message);
            }
        }

        private delegate void GetRchControl(string str);

        private void GetRchMsg(string str)
        ...{
            rchMsg.AppendText(str);
        }

        private void ReadCallBack(IAsyncResult ar)
        ...{
            try
            ...{
               
                StateObject state = (StateObject)ar.AsyncState;
                Socket hander = state.workSocket;

                
                int readbyte = hander.EndReceive(ar);
                if (readbyte > 0)
                ...{
                    string strcontent = "";
                    string str_msg = "";
                    string strmsg = "";
                    strmsg=Encoding.BigEndianUnicode.GetString(state.buffer, 0, readbyte);
                    state.sb.Length = 0;
                    state.sb.Append(strmsg);
                    strcontent = state.sb.ToString() + " ";

                    EndPoint remoteendpoint = hander.RemoteEndPoint;
                    IPEndPoint ipendpoint = (IPEndPoint)remoteendpoint;
                    string remoteip = ipendpoint.Address.ToString();
                    string remoteport = ipendpoint.Port.ToString();

                    IPHostEntry iphostentry = Dns.GetHostByAddress(ipendpoint.Address);
                    string hostname = iphostentry.HostName;

                    string time = DateTime.Now.ToString();

                    str_msg = "(" + time + ") " + hostname + "：" + strcontent + " ";

                    GetRchControl getrch = new GetRchControl(GetRchMsg);
                    this.BeginInvoke(getrch, new object[] ...{ str_msg });

                    byte[] byteData = Encoding.BigEndianUnicode.GetBytes("(" + time + ") " + "信息发送成功 ");
                    hander.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), hander);
                    hander.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallBack), state);
                    
                }
                
            }
            catch (Exception Err)
            ...{
                MessageBox.Show(Err.Message);
            }
        }

        private void Send(Socket handler, String data)
        ...{
            byte[] byteData = Encoding.BigEndianUnicode.GetBytes(data);
            handler.BeginSend(byteData, 0, byteData.Length, 0,new AsyncCallback(SendCallback), handler);
        }

        private void SendCallback(IAsyncResult ar)
        ...{

            try
            ...{

                //Socket handler = (Socket)ar.AsyncState;
                //int bytesSent = handler.EndSend(ar);
               
                //handler.Shutdown(SocketShutdown.Both);

                //handler.Close();
               
            }
            catch (Exception Err)
            ...{
                MessageBox.Show(Err.Message);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        ...{
            th = new Thread(new ThreadStart(Listen)); 
            th.Start();
           
        }
    }

    public class StateObject
    ...{

        public Socket workSocket = null;

        public const int BufferSize = 1024;

        public byte[] buffer = new byte[BufferSize];

        public StringBuilder sb = new StringBuilder();

    }
}


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 同步客户端

using  System;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Data;
using  System.Drawing;
using  System.Text;
using  System.Windows.Forms;
using  System.Net;
using  System.Net.Sockets;
using  System.Threading;
namespace  GPs_Client_Test
... {
    public partial class Form1 : Form
    ...{
        private Socket sok;
        private IPAddress ipaddress;
        private IPEndPoint ipendpoint;
       
        public Form1()
        ...{
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        ...{
            try
            ...{
                Thread th = new Thread(new ThreadStart(Get_TEst));
                th.Start();
            }
            catch (Exception Err)
            ...{
                MessageBox.Show(Err.Message);
            }
        }

        private void GetStr(string str1)
        ...{
            revicestr.AppendText(str1 + " ");
        }

        private delegate void GetControl(string str1);

        private void Get_TEst()
        ...{
            try
            ...{
                ipaddress = IPAddress.Parse(textBox1.Text);
                int port = int.Parse(textBox2.Text);
                ipendpoint = new IPEndPoint(ipaddress, port);
                sok = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                sok.Connect(ipendpoint);
               
                while (true)
                ...{
                    byte[] byt = new byte[1024];
                    string str = "";
                    sok.Receive(byt, byt.Length, 0);
                    str = Encoding.BigEndianUnicode.GetString(byt);
                    GetControl getcon = new GetControl(GetStr);
                    this.BeginInvoke(getcon, new object[] ...{ str});
                }
            }
            catch (Exception Err)
            ...{
                MessageBox.Show(Err.Message);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        ...{
            try
            ...{
                byte[] sendbyte = new byte[1024];
                string str = richTextBox2.Text;
                sendbyte = Encoding.BigEndianUnicode.GetBytes(str);
                sok.Send(sendbyte);
            }
            catch (Exception Err)
            ...{
                MessageBox.Show(Err.Message);
            }
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        ...{
            try
            ...{
                if (sok != null)
                ...{
                    sok.Close();
                }
            }
            catch (Exception Err)
            ...{
            }
        }
    }
}