查找Selenium WebDriver启动的浏览器进程的PID

Question

在C#中我启动了一个浏览器进行测试,我想得到PID,以便在我的winforms应用程序中我可以杀死所有剩余的ghost进程

driver = new FirefoxDriver();

我怎样才能获得PID？

Answer 1

        int _processId = -1;

        var cService = ChromeDriverService.CreateDefaultService();
        cService.HideCommandPromptWindow = true;

        // Optional
        var options = new ChromeOptions();
        options.AddArgument("--headless");

        IWebDriver webdriver = new ChromeDriver(cService, options);
        _processId = cService.ProcessId;

        Console.Write("Process Id : " + _processId);

        webdriver.Navigate().GoToUrl("https://www.google.lk");

        webdriver.Close();
        webdriver.Quit();
        webdriver.Dispose();

Answer 2

看起来更像是一个C#问题,而不是Selenium特有的.

这是一个非常古老的非确定性答案,如果您想尝试这一点,请重新考虑.

我的逻辑是你firefox使用Process.GetProcessesByName方法获取名称的所有进程PID ,然后启动你的FirefoxDriver,然后再次获取进程的PID,比较它们以获得刚启动的PID.在这种情况下,特定驱动程序启动了多少进程并不重要(例如,Chrome启动多个,Firefox只启动一个).

using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using OpenQA.Selenium.Firefox;

namespace TestProcess {
    [TestClass]
    public class UnitTest1 {
        [TestMethod]
        public void TestMethod1() {
            IEnumerable<int> pidsBefore = Process.GetProcessesByName("firefox").Select(p => p.Id);

            FirefoxDriver driver = new FirefoxDriver();
            IEnumerable<int> pidsAfter = Process.GetProcessesByName("firefox").Select(p => p.Id);

            IEnumerable<int> newFirefoxPids = pidsAfter.Except(pidsBefore);

            // do some stuff with PID if you want to kill them, do the following
            foreach (int pid in newFirefoxPids) {
                Process.GetProcessById(pid).Kill();
            }
        }
    }
}

Answer 3

var g = Guid.NewGuid();
driver.Navigate().GoToUrl("about:blank");
driver.ExecuteScript($"document.title = '{g}'");
var pid = Process.GetProcessesByName("firefox").First(p => 
p.MainWindowTitle.Contains(g.ToString()));

Answer 4

我没有尝试使用 Firefox，但这就是 Chrome 的工作方式：

        // creating a driver service
        var driverService = ChromeDriverService.CreateDefaultService();
        _driver = new ChromeDriver(driverService);

        //create list of process id
        var driverProcessIds = new List<int> { driverService.ProcessId };

        //Get all the childs generated by the driver like conhost, chrome.exe...
        var mos = new System.Management.ManagementObjectSearcher($"Select * From Win32_Process Where ParentProcessID={driverService.ProcessId}");
        foreach (var mo in mos.Get())
        {
            var pid = Convert.ToInt32(mo["ProcessID"]);
            driverProcessIds.Add(pid);
        }

        //Kill all
        foreach (var id in driverProcessIds)
        {
            System.Diagnostics.Process.GetProcessById(id).Kill();
        }