87 lines
2.7 KiB
C#
87 lines
2.7 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using System.Net.Sockets;
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using System.Net;
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using System.Threading;
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using UnityEngine;
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using System.Text;
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public class UdpConnect : MonoBehaviour
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{
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public string editString = "hello wolrd"; //编辑框文字
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//以下默认都是私有的成员
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private Socket socket; //目标socket
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private EndPoint serverEnd; //服务端
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private IPEndPoint ipEnd; //服务端端口
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private string recvStr; //接收的字符串
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private string sendStr; //发送的字符串
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private byte[] recvData = new byte[1024]; //接收的数据，必须为字节
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private byte[] sendData = new byte[1024]; //发送的数据，必须为字节
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private int recvLen; //接收的数据长度
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private Thread connectThread; //连接线程
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void InitSocket()
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{
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//定义连接的服务器ip和端口，可以是本机ip，局域网，互联网
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ipEnd = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8999);
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//定义套接字类型,在主线程中定义
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socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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//定义服务端
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IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
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serverEnd = (EndPoint)sender;
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print("waiting for sending UDP dgram");
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//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
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SocketSend("hello");
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//开启一个线程连接，必须的，否则主线程卡死
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connectThread = new Thread(new ThreadStart(SocketReceive));
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connectThread.Start();
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}
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void SocketSend(string sendStr)
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{
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//清空发送缓存
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sendData = new byte[1024];
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//数据类型转换
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sendData = Encoding.ASCII.GetBytes(sendStr);
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//发送给指定服务端
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socket.SendTo(sendData, sendData.Length, SocketFlags.None, ipEnd);
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}
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void SocketReceive()
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{
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//进入接收循环
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while (true)
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{
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//对data清零
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recvData = new byte[1024];
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//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
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recvLen = socket.ReceiveFrom(recvData, ref serverEnd);
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print("message from: " + serverEnd.ToString()); //打印服务端信息
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//输出接收到的数据
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recvStr = Encoding.ASCII.GetString(recvData, 0, recvLen);
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print("我是客户端，接收到服务器的数据" + recvStr);
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}
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}
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void SocketQuit()
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{
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//关闭线程
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if (connectThread != null)
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{
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connectThread.Interrupt();
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connectThread.Abort();
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}
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//最后关闭socket
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if (socket != null)
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socket.Close();
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}
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private void OnApplicationQuit()
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{
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SocketQuit();
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}
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}
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