我想以编程方式杀死正在占用特定端口的正在运行的IIS实例,但似乎无法确定使用特定端口的IIS实例。
netstat.exe只显示进程正在使用PID 4,但那是系统进程。 “netsh http show urlacl”根本不显示占用的端口。
IIS Express Tray程序以某种方式了解这一点。当我尝试在端口被占用时启动另一个IIS Express实例时,我收到以下错误:
“端口'40000'已被进程'IIS Express'使用(进程ID'10632')。
任何人都知道如何获取这些信息?
答案 0 :(得分:2)
似乎PID是4(系统),因为实际的侦听套接字在名为http的服务下。
我查看了iisexpresstray.exe用于提供所有正在运行的IISExpress应用程序的列表。值得庆幸的是,它管理的.NET代码(全部在iisexpresstray.dll中)很容易被反编译。
它似乎至少有三种获取进程端口号的方法:
const rp = require('request-promise');
rp('http://www.google.com').then(function (htmlString) {
// Process html...
}).catch(function (err) {
// process error here
});
(我们知道不可靠)/port
并解析输出netsh http show servicestate view=requestq
并解析网站网址不幸的是,像Microsoft.Web.RuntimeStatusClient.GetWorkerProcess(pid)
类这样的iisexpresstray.dll中的大多数有用的东西都被声明为IisExpressHelper
(尽管我想象有生成包装器或复制程序集并公开所有内容的工具)
我选择使用Microsoft.Web.dll。它出现在我的GAC中,但由于某些原因,它没有出现在可在Visual Studio中添加作为参考的程序集列表中,所以我只是将文件从我的GAC中复制出来。有了Microsoft.Web.dll,只需要使用这段代码:
internal
您也可以调用 using (var runtimeStatusClient = new RuntimeStatusClient())
{
var workerProcess = runtimeStatusClient.GetWorkerProcess(process.Id);
// Apparently an IISExpress process can run multiple sites/applications?
var apps = workerProcess.RegisteredUrlsInfo.Select(r => r.Split('|')).Select(u => new { SiteName = u[0], PhysicalPath = u[1], Url = u[2] });
// If we just assume one app
return new Uri(apps.FirstOrDefault().Url).Port;
}
来仅检索实际的工作进程。
我也查看了RuntimeClient.GetAllWorkerProcesses
(在Microsoft.Web.dll中),发现它使用了两个COM接口,
RegisteredUrlsInfo
(IRsca2_Core
)F90F62AB-EE00-4E4F-8EA6-3805B6B25CDD
(IRsca2_WorkerProcess
)最后,我读到了一个版本的Microsoft.Web.Administration显然能够读取IISExpress应用程序信息,但信息非常稀少,我在系统上找到的那个甚至不能让我实例化{{ 1}}没有管理员权限。
答案 1 :(得分:0)
这是@makhdumi的答案中建议的调用netsh.exe的C#实现:
用法:
static public bool TryGetCurrentProcessRegisteredHttpPort(out List<int> ports, out Exception ex)
{
NetshInvoker netsh = new NetshInvoker();
return netsh.TryGetHttpPortUseByProcessId(Process.GetCurrentProcess().Id, out ports, out ex);
}
实施:
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
namespace YourCompanyName.Server.ServerCommon.Utility
{
/// <summary>
/// Invoke netsh.exe and extract information from its output.
/// Source: @crokusek, https://stackoverflow.com/questions/32196188
/// @GETah, https://stackoverflow.com/a/8274758/538763
/// </summary>
public class NetshInvoker
{
const string NetshHttpShowServiceStateViewRequestqArgs = "http show servicestate view=requestq";
public NetshInvoker()
{
}
/// <summary>
/// Call netsh.exe to determine the http port number used by a given windowsPid (e.g. an IIS Express process)
/// </summary>
/// <param name="windowsPid">For example an IIS Express process</param>
/// <param name="port"></param>
/// <param name="ex"></param>
/// <returns></returns>
public bool TryGetHttpPortUseByProcessId(Int32 windowsPid, out List<Int32> ports, out Exception ex)
{
ports = null;
try
{
if (!TryQueryProcessIdRegisteredUrls(out Dictionary<Int32, List<string>> pidToUrlMap, out ex))
return false;
if (!pidToUrlMap.TryGetValue(windowsPid, out List<string> urls))
{
throw new Exception(String.Format("Unable to locate windowsPid {0} in '{1}' output.",
windowsPid, "netsh " + NetshHttpShowServiceStateViewRequestqArgs));
}
if (!urls.Any())
{
throw new Exception(String.Format("WindowsPid {0} did not reference any URLs in '{1}' output.",
windowsPid, "netsh " + NetshHttpShowServiceStateViewRequestqArgs));
}
ports = urls
.Select(u => new Uri(u).Port)
.ToList();
return true;
}
catch (Exception ex_)
{
ex = ex_;
return false;
}
}
private bool TryQueryProcessIdRegisteredUrls(out Dictionary<Int32, List<string>> pidToUrlMap, out Exception ex)
{
if (!TryExecNetsh(NetshHttpShowServiceStateViewRequestqArgs, out string output, out ex))
{
pidToUrlMap = null;
return false;
}
bool gotRequestQueueName = false;
bool gotPidStart = false;
int currentPid = 0;
bool gotUrlStart = false;
pidToUrlMap = new Dictionary<int, List<string>>();
foreach (string line in output.Split('\n').Select(s => s.Trim()))
{
if (!gotRequestQueueName)
{
gotRequestQueueName = line.StartsWith("Request queue name:");
}
else if (!gotPidStart)
{
gotPidStart = line.StartsWith("Process IDs:");
}
else if (currentPid == 0)
{
Int32.TryParse(line, out currentPid); // just get the first Pid, ignore others.
}
else if (!gotUrlStart)
{
gotUrlStart = line.StartsWith("Registered URLs:");
}
else if (line.ToLowerInvariant().StartsWith("http"))
{
if (!pidToUrlMap.TryGetValue(currentPid, out List<string> urls))
pidToUrlMap[currentPid] = urls = new List<string>();
urls.Add(line);
}
else // reset
{
gotRequestQueueName = false;
gotPidStart = false;
currentPid = 0;
gotUrlStart = false;
}
}
return true;
}
private bool TryExecNetsh(string args, out string output, out Exception exception)
{
output = null;
exception = null;
try
{
// From @GETah, https://stackoverflow.com/a/8274758/538763
Process p = new Process();
p.StartInfo.FileName = "netsh.exe";
p.StartInfo.Arguments = args;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.Start();
output = p.StandardOutput.ReadToEnd();
return true;
}
catch (Exception ex)
{
exception = ex;
return false;
}
}
}
}
答案 2 :(得分:-1)
您可以运行以下命令来获取可执行文件及其PID的信息
netstat -a -n -o -b | find "iisexpress.exe"