108 lines
3.2 KiB
C#
108 lines
3.2 KiB
C#
using System;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading;
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using UnityEngine;
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public class BroadcastServer : MonoBehaviour
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{
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private UdpClient udpClient; // 用于发送广播的UDP客户端
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private Thread broadcastThread; // 广播线程
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private volatile bool isRunning = true; // 线程安全的运行标志
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// 脚本启动时调用
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void Start()
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{
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try
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{
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udpClient = new UdpClient();
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udpClient.EnableBroadcast = true;
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// 启动广播线程
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broadcastThread = new Thread(BroadcastIP);
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broadcastThread.Start();
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Debug.Log("广播服务器已启动，端口: 9999");
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}
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catch (Exception ex)
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{
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Debug.LogError($"初始化UDP客户端失败: {ex.Message}");
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}
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}
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// 广播显示端服务器的IP地址
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private void BroadcastIP()
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{
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string localIP = GetLocalIPAddress();
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if (string.IsNullOrEmpty(localIP))
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{
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Debug.LogError("无法获取本地IP地址，广播停止");
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return;
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}
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string message = $"ServerIP:{localIP}";
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byte[] data = Encoding.UTF8.GetBytes(message);
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IPEndPoint endPoint = new IPEndPoint(IPAddress.Broadcast, 9999); // 修改为9999
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while (isRunning)
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{
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try
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{
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udpClient.Send(data, data.Length, endPoint);
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Debug.Log($"广播IP: {message}");
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Thread.Sleep(1000); // 每秒广播一次
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}
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catch (Exception ex)
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{
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Debug.LogError($"广播错误: {ex.Message}");
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Thread.Sleep(5000); // 出错后等待5秒重试
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}
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}
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}
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// 获取本地IP地址，排除回环地址
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private string GetLocalIPAddress()
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{
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try
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{
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foreach (var networkInterface in NetworkInterface.GetAllNetworkInterfaces())
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{
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if (networkInterface.OperationalStatus == OperationalStatus.Up &&
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networkInterface.NetworkInterfaceType != NetworkInterfaceType.Loopback)
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{
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foreach (var unicastIPAddress in networkInterface.GetIPProperties().UnicastAddresses)
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{
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if (unicastIPAddress.Address.AddressFamily == AddressFamily.InterNetwork)
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{
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string ip = unicastIPAddress.Address.ToString();
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if (!ip.StartsWith("127."))
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{
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Debug.Log($"选择IP: {ip} (接口: {networkInterface.Name})");
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return ip;
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}
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}
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}
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}
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}
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Debug.LogError("未找到有效的IPv4地址");
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return "";
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}
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catch (Exception ex)
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{
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Debug.LogError($"获取IP地址错误: {ex.Message}");
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return "";
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}
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}
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// 应用程序退出时清理资源
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private void OnApplicationQuit()
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{
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isRunning = false;
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udpClient?.Close();
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if (broadcastThread != null && broadcastThread.IsAlive)
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{
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broadcastThread.Join(1000); // 等待线程结束
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}
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Debug.Log("广播服务器已停止");
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}
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} |