Unity UDP通讯客户端示例

using UnityEngine;
using System.Collections;
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;


public class UDP_Client : MonoBehaviour
{
   public string recvStr;
    private string UDPClientIP;
    Socket socket;
    EndPoint serverEnd;
    IPEndPoint ipEnd;
 
    byte[] recvData = new byte[1024];
    byte[] sendData = new byte[1024];
    int recvLen = 0;
    Thread connectThread;
 
    void Start()
    {
        UDPClientIP = "192.168.31.168";//服务端的IP.自己更改
        UDPClientIP = UDPClientIP.Trim();       
        InitSocket(); 
    }
 
    void InitSocket()
    {
        ipEnd = new IPEndPoint(IPAddress.Parse(UDPClientIP), 8060);
        socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
        IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
        serverEnd = (EndPoint)sender;
        print("等待连接");
        SocketSend("客户端连接成功");
        print("连接");
        //开启一个线程连接
        connectThread = new Thread(new ThreadStart(SocketReceive));
        connectThread.Start();
    }
    void SocketSend(string sendStr)
    {
        //清空
        sendData = new byte[1024];
        //数据转换
        sendData = Encoding.UTF8.GetBytes(sendStr);
        //发送给指定服务端
        socket.SendTo(sendData, sendData.Length, SocketFlags.None, ipEnd);
    }
 
    //接收服务器信息
    void SocketReceive()
    {
        while (true)
        {
 
            recvData = new byte[1024];
            try
            {
                recvLen = socket.ReceiveFrom(recvData, ref serverEnd);
            }
            catch (Exception e)
            {
            }
 
            print("信息来自: " + serverEnd.ToString());
            if (recvLen > 0)
            {
                recvStr = Encoding.UTF8.GetString(recvData, 0, recvLen);
            }
 
            print(recvStr);
        }
    }
 
    //连接关闭
    void SocketQuit()
    {
        //关闭线程
        if (connectThread != null)
        {
            connectThread.Interrupt();
            connectThread.Abort();
        }
        //最后关闭socket
        if (socket != null)
            socket.Close();
    }
    void OnApplicationQuit()
    {
        SocketQuit();
    }
  int i=0;
    void Update()
    {
        if(Input.GetKeyDown(KeyCode.Space)){
            ++i;
            SocketSend("发送消息给服务端："+i);
        }
    }

}