新增 Mjpegplayer 用来播放 Web 流

SHH.MjpegPlayer/Core/Extensions/NetPortExtension.cs

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+using Ayay.SerilogLogs;
+using Serilog;
+using System.Diagnostics;
+using System.Net;
+using System.Net.NetworkInformation;
+using System.Text.RegularExpressions;
+
+namespace SHH.MjpegPlayer
+{
+    /// <summary>
+    /// 网口占用检测
+    /// </summary>
+    public static class NetPortExtension
+    {
+        private static ILogger _sysLog = Log.ForContext("SourceContext", LogModules.Core);
+
+        #region IsServerPort
+
+        /// <summary>
+        /// 是否端口
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        public static bool IsServerPort(this int value)
+        {
+            if (value > 0 && value < 65535)
+                return true;
+
+            return false;
+        }
+
+        #endregion
+
+        #region IsPortOccupied
+
+        /// <summary>
+        /// 端口占用检测
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        public static bool IsPortOccupied(this int port)
+        {
+            var ipProperties = IPGlobalProperties.GetIPGlobalProperties();
+            IPEndPoint[] activeListeners = ipProperties.GetActiveTcpListeners();
+            foreach (var endPoint in activeListeners)
+            {
+                if (endPoint.Port == port)
+                    return true; // 端口被占用
+            }
+
+            return false; // 端口可用
+        }
+
+        #endregion
+
+        #region GetProcessIdByPort
+
+        /// <summary>
+        /// 查询端口占用进程 Pid
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        public static int GetProcessIdByPort(this int port)
+        {
+            try
+            {
+                using (Process proc = new Process())
+                {
+                    proc.StartInfo.FileName = "cmd.exe";
+                    proc.StartInfo.Arguments = $"/c netstat -ano | findstr :{port}";
+                    proc.StartInfo.UseShellExecute = false;
+                    proc.StartInfo.RedirectStandardOutput = true;
+                    proc.StartInfo.CreateNoWindow = true;
+
+                    proc.Start();
+                    string output = proc.StandardOutput.ReadToEnd();
+                    proc.WaitForExit();
+
+                    // 解析输出（示例：TCP    0.0.0.0:8080    0.0.0.0:0    LISTENING    1234）
+                    Match match = Regex.Match(output, @":\d+\s+.*?LISTENING\s+(\d+)");
+                    if (match.Success && int.TryParse(match.Groups[1].Value, out int pid))
+                        return pid;
+                }
+
+                return 0;
+            }
+            catch (Exception ex)
+            {
+                _sysLog.Warning("查询端口占用进程出错", ex.Message, ex.StackTrace);
+                return 0;
+            }
+        }
+
+        #endregion
+
+        #region GetProcessIdByPort
+
+        /// <summary>
+        /// 查询端口占用进程 Pid
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        public static string GetProcessNameIdByPort(this int port)
+        {
+            try
+            {
+                using (Process proc = new Process())
+                {
+                    proc.StartInfo.FileName = "cmd.exe";
+                    proc.StartInfo.Arguments = $"/c netstat -ano | findstr :{port}";
+                    proc.StartInfo.UseShellExecute = false;
+                    proc.StartInfo.RedirectStandardOutput = true;
+                    proc.StartInfo.CreateNoWindow = true;
+
+                    proc.Start();
+                    string output = proc.StandardOutput.ReadToEnd();
+                    proc.WaitForExit();
+
+                    // 解析输出（示例：TCP    0.0.0.0:8080    0.0.0.0:0    LISTENING    1234）
+                    Match match = Regex.Match(output, @":\d+\s+.*?LISTENING\s+(\d+)");
+                    if (match.Success && int.TryParse(match.Groups[1].Value, out int pid))
+                    {
+                        using (Process process = Process.GetProcessById(pid))
+                            return process.ProcessName;
+                    }
+                }
+
+                return string.Empty;
+            }
+            catch (Exception ex)
+            {
+                _sysLog.Warning($"查询端口占用进程出错, 错误信息:{ex.Message} {ex.StackTrace}");
+                return string.Empty;
+            }
+        }
+
+        #endregion
+
+        #region PortOccupiedProc
+
+        /// <summary>
+        /// 端口占用检测并杀掉进程
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns>返回占用端口清理结果</returns>
+        public static bool PortOccupiedProc(this int port)
+        {
+            if (port.IsPortOccupied())
+            {
+                _sysLog.Warning("服务器端口被占用, Port: {port}");
+
+                // 等待 5 秒
+                for (var i = 0; i < 10; i++)
+                    Thread.Sleep(500);
+
+                // 查找占用端口的进程
+                var pid = port.GetProcessIdByPort();
+                if (pid != 0)
+                {
+                    // 获取进程名
+                    string procName = pid.GetProcessName();
+
+                    // 找到占用端口的进程
+                    _sysLog.Warning($"找到占用端口进程 Pid: {pid} 进程名:{procName}, 5 秒后即将尝试杀掉占用端口的进程.");
+
+                    // 等待 5 秒
+                    for (var i = 0; i < 10; i++)
+                        Thread.Sleep(500);
+
+                    // 杀掉指定进程
+                    if (!pid.KillProcessByPid(procName))
+                    {
+                        // 退出应用
+                        return false;
+                    }
+
+                    // 等待 2 秒
+                    Thread.Sleep(2000);
+                    return true;
+                }
+
+                return false;
+            }
+
+            return true;
+        }
+
+        #endregion
+    }
+}