unity 接收和发送Udp消息

因为需要用到unity和其他的程序交互，其他程序可以提供Udp消息，因此找了合适的相互连接方法。这里直接上代码。

工具类：

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using UnityEngine;
using UnityEngine.Video;
 
public class UdpManager
{
    public static string m_receivedMessage;
    static IPEndPoint m_IPEndPoint;
    static UdpClient m_udpClient;
 
 
    public static void InitializeUdpClient()
    {
        m_IPEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8080);
        m_udpClient = new UdpClient(m_IPEndPoint);
        UdpModel s = new UdpModel(m_udpClient, m_IPEndPoint);
        m_udpClient.BeginReceive(EndReceive, s);
        Debug.Log("服务器启动");
 
    }
 
    //结束得到的信息
    private static void EndReceive(IAsyncResult ar)
    {
        try
        {
            UdpModel m_UdpModel = ar.AsyncState as UdpModel;
            if (m_UdpModel != null)
            {
                UdpClient udpClient = m_UdpModel.m_udpclient;
                IPEndPoint ip = m_UdpModel.m_ip;
                Byte[] receiveBytes = udpClient.EndReceive(ar, ref ip);
                string msg = Encoding.UTF8.GetString(receiveBytes);
                m_receivedMessage = msg;
                udpClient.BeginReceive(EndReceive, m_UdpModel); //开始获取
 
            }
        }
        catch (Exception ex)
        {
            //处理异常
        }
    }
 
    //udp模型
    private class UdpModel
    {
        public UdpClient m_udpclient = null;
        public IPEndPoint m_ip;
        public UdpModel(UdpClient udpclient, IPEndPoint ip)
        {
            this.m_udpclient = udpclient;
            this.m_ip = ip;
        }
    }
 
    //关闭
    public static void Close()
    {
        if (m_udpClient != null)
        {
            m_udpClient.Close();
            m_udpClient = null;
        }
    }
 
    /// 
    /// 发送数据
    /// 
    /// 
    public static void SendMessage(string message)
    {
        UdpClient myUdpClient = new UdpClient();
        IPEndPoint endpoint;
        //当前服务器ip和端口号
        myUdpClient = new UdpClient(new IPEndPoint(IPAddress.Any, 8800));
 
        //要发送给的地址和端口号，255.255.255.255表示在这个局域网的所有ip
        endpoint = new IPEndPoint(IPAddress.Parse("192.168.31.174"), 1180);
 
        byte[] bytes = Encoding.UTF8.GetBytes(message);
        try
        {
            myUdpClient.Send(bytes, bytes.Length, endpoint);
            myUdpClient.Close();
        }
        catch (Exception err)
        {
            Console.Write(err.Message, "发送失败");
        }
        finally
        {
            myUdpClient.Close();
        }
    }
}

需要挂载运行的脚本：

using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine;
using UnityEngine.Video;
 
/// 
/// 服务接收生成
/// 
public class ServerControl : MonoBehaviour
{
    
   
 
    void Start()
    {
 
        UdpManager.InitializeUdpClient();
 
        //part1Root.SetActive(true);
        //part2Root.SetActive(false);
    }
    void Update()
    {
 
        if (UdpManager.m_receivedMessage != null)
        {
            string[] array = UdpManager.m_receivedMessage.Split(',');
            Debug.Log(UdpManager.m_receivedMessage);
          
            UdpManager.m_receivedMessage = null;
        
        }
      
 
 
    }
 
    private void OnDestroy()
    {
        UdpManager.Close();
    }
}

使用方法很简单，把ServerControl脚本挂载在一个物体上，直接运行即可，接受信息的方法和发送的方法都在两个脚本里。