C# UDP接收不同端口的数据报文

来源：互联网发布：udp 17端口编辑：程序博客网时间：2024/05/22 05:13

在unity中使用UDP进行数据的交互，建立C/S模式，两个客户端和一个服务端。两个客户端使用不同的端口往服务端发送数据，服务端根据收到的数据进行处理和判断，控制服务端的显示。

这是客户端根据检测到人体的数量向服务端发送的数据格式。

服务端：使用两个线程用于接收两个客户端的数据，将收到的数据添加到Queue中。在需要显示数据的Update中从Queue中取出数据进行处理控制。

这里服务端的接收数据脚本直接上代码：

using UnityEngine;using System.Collections;//引入库using System.Net;using System.Net.Sockets;using System.Text;using System.Threading;using System.Collections.Generic;public class UdpHelpHandler : MonoBehaviour {//以下默认都是私有的成员Socket socket,socket2; //目标socketEndPoint clientEnd; //客户端IPEndPoint ipEnd,ipEnd2; //侦听端口string recvStr,recvStr2; //接收的字符串string sendStr; //发送的字符串byte[] recvData=new byte[1024]; //接收的数据，必须为字节byte[] recvData2=new byte[1024]; //接收的数据，必须为字节byte[] sendData=new byte[1024]; //发送的数据，必须为字节int recvLen,recvLen2; //接收的数据长度Thread connectThread,connectThread2; //连接线程    int[] WaveCounts = new int[2];    int[] TPoseCounts = new int[2];public Queue<string> queueClient1 = new Queue<string>();public Queue<string> queueClient2 = new Queue<string>();private System.Object thisLock = new System.Object ();//初始化publicvoid InitSocket(){//定义侦听端口,侦听任何IPipEnd=new IPEndPoint(IPAddress.Any,2000);//定义套接字类型,在主线程中定义socket=new Socket(AddressFamily.InterNetwork,SocketType.Dgram,ProtocolType.Udp);//服务端需要绑定iptry{socket.Bind(ipEnd);}catch (System.Exception ex) {socket.Close ();Debug.LogError(ex.Message + "\n" + ex.StackTrace);}//定义侦听端口,侦听任何IPipEnd2=new IPEndPoint(IPAddress.Any,3000);//定义套接字类型,在主线程中定义socket2=new Socket(AddressFamily.InterNetwork,SocketType.Dgram,ProtocolType.Udp);//服务端需要绑定iptry{socket2.Bind(ipEnd2);}catch (System.Exception ex) {socket2.Close ();Debug.LogError(ex.Message + "\n" + ex.StackTrace);}//定义客户端IPEndPoint sender=new IPEndPoint(IPAddress.Any,0);clientEnd=(EndPoint)sender;print("waiting for UDP dgram");//开启一个线程连接，必须的，否则主线程卡死connectThread=new Thread(new ThreadStart(SocketReceive));connectThread.Start();//开启一个线程连接，必须的，否则主线程卡死connectThread2=new Thread(new ThreadStart(SocketReceive2));connectThread2.Start();}void SocketSend(string sendStr){//清空发送缓存sendData=new byte[1024];//数据类型转换sendData=Encoding.ASCII.GetBytes(sendStr);//发送给指定客户端socket.SendTo(sendData,sendData.Length,SocketFlags.None,clientEnd);}//服务器接收void SocketReceive(){//进入接收循环while(true){//对data清零recvData=new byte[1024];//获取客户端，获取客户端数据，用引用给客户端赋值recvLen=socket.ReceiveFrom(recvData,ref clientEnd);//输出接收到的数据recvStr=Encoding.ASCII.GetString(recvData,0,recvLen);            char[] msgDelim = { '|' };            string[] asMessages = recvStr.Split(msgDelim);  if (asMessages.Length > 7) {queueClient1.Enqueue (recvStr);if (int.Parse (asMessages [0]) == 2) {if (int.Parse (asMessages [6]) == 6) { //wave                      SetWaveCountsClient1 (2);}                    } else if (int.Parse (asMessages [0]) == 3) {if (int.Parse (asMessages [6]) == 6) { //waveSetWaveCountsClient2 (3);}                    }}        }}//服务器接收void SocketReceive2(){//进入接收循环while(true){//对data清零recvData2=new byte[1024];//获取客户端，获取客户端数据，用引用给客户端赋值recvLen2=socket2.ReceiveFrom(recvData2,ref clientEnd);//输出接收到的数据recvStr2=Encoding.ASCII.GetString(recvData2,0,recvLen2);char[] msgDelim = { '|' };string[] asMessages = recvStr2.Split(msgDelim);if (asMessages.Length > 7){queueClient2.Enqueue (recvStr2);if (int.Parse(asMessages[0]) == 2){if(int.Parse(asMessages[6]) == 6) //wave{SetWaveCountsClient1(2);}}else if (int.Parse(asMessages[0]) == 3){if (int.Parse(asMessages[6]) == 6) //wave{SetWaveCountsClient2(3);}}}}}    public void SetWaveCountsClient1(int index)    {        if (index == 2)        {            WaveCounts[0]++;        }    }public void SetWaveCountsClient2(int index){        if (index == 3)WaveCounts[1]++;}    public void SetTposeCounts(int index)    {        if (index == 2)            TPoseCounts[0]++;        else if (index == 3)            TPoseCounts[1]++;    }    public int GetWaveCounts(int index)    {        int ret = 0;        if (index == 2)        {            if (WaveCounts[0] > 0)                ret = WaveCounts[0]--;        }        else if (index == 3)        {            if (WaveCounts[1] > 0)                ret = WaveCounts[1]--;        }        return ret;    }    public int GetTposeCounts(int index)    {        int ret = 0;        if (index == 2)        {            if (TPoseCounts[0] > 0)                ret = TPoseCounts[0]--;        }        else if (index == 3)        {            if (TPoseCounts[1] > 0)                ret = TPoseCounts[1]--;        }        return ret;    }    //返回接收到的字符串      public string GetRecvStr(){string returnStr="";//加锁防止字符串被改  if (queueClient1.Count > 0) {lock (/*thisLock*/queueClient1) {//returnStr=recvStr;returnStr = queueClient1.Dequeue ();}}return returnStr;} //返回接收到的字符串  public void setRecvStr(){//加锁防止字符串被改  lock(thisLock){recvStr = null;}} //返回接收到的字符串  public string GetRecvStr2(){string returnStr="";if (queueClient2.Count > 0) {lock (/*thisLock*/queueClient2) {//returnStr=recvStr;returnStr = queueClient2.Dequeue ();}}return returnStr;} //返回接收到的字符串  public void setRecvStr2(){//加锁防止字符串被改  lock(thisLock){recvStr2 = null;}} //连接关闭publicvoid SocketQuit(){//关闭线程if(connectThread!=null){connectThread.Interrupt();connectThread.Abort();}if(connectThread2!=null){connectThread2.Interrupt();connectThread2.Abort();}//最后关闭socketif(socket!=null)socket.Close();//最后关闭socketif(socket2!=null)socket2.Close();print("disconnect");}}

客户端代码如下：

using UnityEngine;using System.Collections;//引入库using System.Net;using System.Net.Sockets;using System.Text;using System.Threading;using System.Xml;//客户端public class UdpHelpHandler : MonoBehaviour {//以下默认都是私有的成员Socket socket; //目标socketEndPoint serverEnd; //服务端IPEndPoint ipEnd; //服务端端口string recvStr; //接收的字符串string sendStr; //发送的字符串byte[] recvData=new byte[1024]; //接收的数据，必须为字节byte[] sendData=new byte[1024]; //发送的数据，必须为字节int recvLen; //接收的数据长度Thread connectThread; //连接线程public bool isClient =true;//初始化public void InitSocket(string ipHostString,int port){//定义连接的服务器ip和端口，可以是本机ip，局域网，互联网ipEnd=new IPEndPoint(IPAddress.Parse(ipHostString),port);//定义套接字类型,在主线程中定义socket=new Socket(AddressFamily.InterNetwork,SocketType.Dgram,ProtocolType.Udp);//定义服务端IPEndPoint sender=new IPEndPoint(IPAddress.Any,0);serverEnd=(EndPoint)sender;print("waiting for sending UDP dgram....");//建立初始连接，这句非常重要，第一次连接初始化了serverEnd后面才能收到消息//开启一个线程连接，必须的，否则主线程卡死connectThread=new Thread(new ThreadStart(SocketReceive));connectThread.Start();}public void SocketSend(string sendStr){//清空发送缓存sendData=new byte[1024];//数据类型转换sendData=Encoding.ASCII.GetBytes(sendStr);//发送给指定服务端socket.SendTo(sendData,sendData.Length,SocketFlags.None,ipEnd);}//服务器接收void SocketReceive(){//进入接收循环while(true){//print("recv thread");//对data清零recvData=new byte[1024];//获取客户端，获取服务端端数据，用引用给服务端赋值，实际上服务端已经定义好并不需要赋值recvLen=socket.ReceiveFrom(recvData,ref serverEnd);//print("message from: "+serverEnd.ToString()); //打印服务端信息//输出接收到的数据recvStr=Encoding.ASCII.GetString(recvData,0,recvLen);//print(recvStr);}}//连接关闭public void SocketQuit(){//关闭线程if(connectThread!=null){connectThread.Interrupt();connectThread.Abort();}//最后关闭socketif(socket!=null)socket.Close();}}

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