c#服务器， 和Unity端 C#实现异步交互

public class StateObject{    //聊天用的数据    public Socket workSocket = null;    public const int BufferSize = 1024;    public byte[] buffer = new byte[BufferSize];    public StringBuilder sb = new StringBuilder();}

服务器：

using System;  using System.CodeDom;  using System.Collections.Generic;  using System.Linq;  using System.Net;  using System.Net.Sockets;  using System.Text;  using System.Threading;  using System.Threading.Tasks;    namespace socketAsyncCallback  {            public class StateObject      {          public Socket WorkSocket = null;          public const int  BufferSize = 1024;          public byte[] buffer = new byte[BufferSize];          public StringBuilder sb = new StringBuilder();      }        class Program      {          public static ManualResetEvent allDone = new ManualResetEvent(false);          private static Socket listener;          static void Main(string[] args)          {              StartListening();                        }            public static void StartListening()          {              byte[] bytes = new byte[1024];                            IPAddress ipAddress = IPAddress.Parse("10.2.226.14");              int port = 8885;              IPEndPoint point = new IPEndPoint(ipAddress, port);                listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);                            try              {                  listener.Bind(point);                  listener.Listen(10);                  listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);                  //这里本来是在这里启动一个begin的，我把他挪到了AcceptCallback方法里，这样就不用让主线程等待了                  /*                 while (true)                 {                     allDone.Reset();                      Console.WriteLine("Waiting fo a connection...");                      listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);                      allDone.WaitOne();                 }                  */                }              catch (Exception e)              {                  Console.WriteLine(e.ToString());                                }                Console.WriteLine("\n Press Enter to continue");              Console.Read();              }            public static void AcceptCallback(IAsyncResult ar)          {              listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);              Console.WriteLine("come in AcceptCallback");              //allDone.Set();                Socket myListener = (Socket) ar.AsyncState;              Socket handler = myListener.EndAccept(ar);              //握手，因为我这里用来连接进来的client 是用的同步的，所以一定要握手才可以，我连接就是用的前面的一篇 socketClient的文章              //handler.Send(Encoding.ASCII.GetBytes("server say hello"));              //这里是申创造一个容器， 来传递socket              StateObject state = new StateObject();              state.WorkSocket = handler;              handler.BeginReceive(state.buffer, 0, 1024, 0, new AsyncCallback(ReadCallback), state);          }            public static void ReadCallback(IAsyncResult ar)          {                            string content = string.Empty;              Console.WriteLine("READCALLBACK");              StateObject state = (StateObject) ar.AsyncState;              Socket handler = state.WorkSocket;            //handler.Send(Encoding.ASCII.GetBytes("server say hello"));              int bytesRead = handler.EndReceive(ar);              if (bytesRead > 0)              {                  Console.WriteLine(handler + ":" +Encoding.ASCII.GetString(state.buffer, 0, bytesRead));                  state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));                    content = state.sb.ToString();                  //Console.WriteLine(content);                  if (content.IndexOf("<EOF>") > -1)                  {                      Console.WriteLine("Read {0} bytes from socket. \n Data: {1}",content.Length, content);                      //给客户端响应，这里也可以注释掉，没有关系                      Send(handler, content);                  }                  else                  {                      handler.BeginReceive(state.buffer, 0, 1024, 0, new AsyncCallback(ReadCallback),                          state);                  }              }          }            private static void Send(Socket handler, string data)          {              byte[] byteData = Encoding.ASCII.GetBytes(data);                handler.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), handler);          }          private static void SendCallback(IAsyncResult ar)          {              try              {                  Socket handler = (Socket) ar.AsyncState;                    int bytesSend = handler.EndSend(ar);                  Console.WriteLine("Send {0} bytes to client.", bytesSend);                  handler.Shutdown(SocketShutdown.Both);                  handler.Close();                }              catch (Exception e)               {                  Console.WriteLine(e.ToString());                               }          }      }  }  

客户端：

using System;using System.Net;using System.Net.Sockets;using System.Text;using System.Threading;using UnityEngine;using System.Collections;public class OprationModelGUI : MonoBehaviour {// Use this for initialization    private Vector2 scrollViewPosition = new Vector2(0, 5);    private string sendMessage = "";    private string boxMessage = "";    private Socket clientSocket;    private Thread reveiveThread;   //开启线程，来接收消息void Start () {    StartTalk();        Receive(clientSocket);        }// Update is called once per framevoid Update () {   }    void OnGUI()    {        //Debug.Log("testModel");        //GUILayout.Button("ddd");        GUILayout.Space(300);        GUILayout.BeginVertical();        scrollViewPosition = GUILayout.BeginScrollView(scrollViewPosition, GUILayout.Height(120), GUILayout.Width(210));        GUILayout.Box(boxMessage);        GUILayout.EndScrollView();        GUILayout.BeginHorizontal();        sendMessage = GUILayout.TextField(sendMessage,GUILayout.Width(150));        if (GUILayout.Button("发送", GUILayout.Width(50)))        {            boxMessage += "\n" + "我说:" + sendMessage;            Send(clientSocket, sendMessage);                        sendMessage = "";        }        GUILayout.EndHorizontal();        GUILayout.EndVertical();            }    void StartTalk()    {        IPAddress ipAddress = IPAddress.Parse("10.2.226.14");        int port = 8885;        IPEndPoint remoteEP = new IPEndPoint(ipAddress, port);        clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);        //与目标终端连接        clientSocket.BeginConnect(remoteEP, new AsyncCallback(ConnectCallback), clientSocket);        //等待，直到连接程序完成， 在ConnectCallback中适当位置有connectDone.Set()                //发送数据到远程终端        //Send(client, "this is a test");                //client.Shutdown(SocketShutdown.Both);        //client.Close();    }    //连接部分 Callback    void ConnectCallback(IAsyncResult ar)    {        //获取socket        Socket client = (Socket) ar.AsyncState;        //完成连接        client.EndConnect(ar);    }    //数据接收    void Receive(Socket client)    {        //构造容器        StateObject state = new StateObject();        state.workSocket = client;        //从远程接收数据        client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state);    }    void ReceiveCallback(IAsyncResult ar)    {        Debug.Log("ReceiveCallBack");        StateObject state = (StateObject) ar.AsyncState;        Socket client = state.workSocket;                //从远程设备读取数据        int bytesRead = client.EndReceive(ar);        if (bytesRead > 0)        {            state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));                        //继续读取            client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state);                            }        else        {            Debug.Log("最后没有进来");            if (state.sb.Length > 1)            {                Debug.Log(state.sb.ToString());                boxMessage += "\n" + state.sb.ToString();            }        }        boxMessage += "\n" + state.sb;    }        //数据发送    void Send(Socket client, string data)    {        //格式转换        byte[] byteData = Encoding.ASCII.GetBytes(data);        //开始发送数据到远程设备        client.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), client);    }    void SendCallback(IAsyncResult ar)    {        Socket client = (Socket) ar.AsyncState;        //完成数据发送        int bytesSent = client.EndSend(ar);    }}