94 lines
3.1 KiB
C#
94 lines
3.1 KiB
C#
using System;
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using System.Diagnostics;
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using System.Linq;
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namespace ToolLibrary
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{
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public static class PortProcessManager
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{
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/// <summary>
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/// 获取指定端口占用的进程 PID
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/// </summary>
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/// <param name="port">指定的端口号</param>
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/// <returns>占用端口的进程 PID，失败时返回 -1</returns>
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public static int GetProcessIdByPort(int port)
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{
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try
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{
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// 使用 netstat 命令获取端口信息
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var startInfo = new ProcessStartInfo
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{
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FileName = "netstat",
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Arguments = $"-ano | findstr :{port}", // 查找指定端口的占用情况
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RedirectStandardOutput = true,
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UseShellExecute = false,
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CreateNoWindow = true
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};
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using (var process = Process.Start(startInfo))
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using (var reader = process.StandardOutput)
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{
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string output = reader.ReadToEnd();
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if (!string.IsNullOrEmpty(output))
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{
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// 输出格式: TCP 0.0.0.0:2403 0.0.0.0:0 LISTENING 1234
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var columns = output.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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if (columns.Length > 4)
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{
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int pid = int.Parse(columns[columns.Length - 1]); // 获取 PID
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return pid;
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}
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}
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("查询端口进程失败: " + ex.Message);
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}
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return -1; // 返回无效的 PID
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}
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/// <summary>
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/// 根据 PID 杀死指定的进程
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/// </summary>
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/// <param name="pid">进程 ID</param>
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/// <returns>是否成功杀死进程</returns>
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public static bool KillProcessById(int pid)
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{
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try
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{
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var process = Process.GetProcessById(pid);
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process.Kill();
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Console.WriteLine($"进程 PID {pid} 已成功结束。");
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return true;
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}
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catch (Exception ex)
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{
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Console.WriteLine("结束进程失败: " + ex.Message);
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return false;
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}
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}
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/// <summary>
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/// 查询端口占用的进程并杀死该进程
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/// </summary>
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/// <param name="port">指定的端口号</param>
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/// <returns>是否成功杀死进程</returns>
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public static bool KillProcessByPort(int port)
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{
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int pid = GetProcessIdByPort(port);
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if (pid > 0)
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{
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return KillProcessById(pid);
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}
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else
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{
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Console.WriteLine($"端口 {port} 没有被占用或未找到相关进程。");
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return false;
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}
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}
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}
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}
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