groovy(java):exec()不会脱离进程(Intellij IDEA与Maven + TestNG) [英] groovy (java): exec() do not detach from process (Intellij IDEA vs Maven+TestNG)

问题描述

我有启用了TestNG和Surefire插件的Groovy Maven2测试项目.

I have Groovy Maven2 test project with TestNG and Surefire plugin enabled.

我想在最后一种测试方法中启动外部进程(* .cmd文件，该文件以* .exe文件开头)，完成我的测试，并使进程在测试后运行.

I want to launch external process (*.cmd file which start some *.exe file) in last test method, finish my tests and left process running after tests.

我尝试了以下代码来做到这一点:

I tried the following codes to do it:

1次尝试

def builder = new ProcessBuilder('cmd','/c <name>.cmd')
builder.directory( ( new File( <path_to_working_directory> ) ) )
builder.start()

2次尝试(带有和不带有start cmd选项)

2 attempt (with and without start cmd option)

Runtime.getRuntime().exec( "cmd /c start <name>.cmd", null , ( new File( <path_to_working_directory> ) ) )

3次尝试

( new AntBuilder() ).exec(
    dir: "<path_to_working_directory>",
    executable: "<name>.cmd"
)     

.cmd在哪里:

set path=<path_to_execFile>;%path%
start <execFileName>.exe

当我通过运行"功能(Alt + Shift + F10)从Intellij IDEA启动这些代码中的每一个时，代码均成功执行，进程启动并在测试完成后运行.

When I launch each of these codes from Intellij IDEA via 'Run' functionality (Alt+Shift+F10) codes execute successfully, process started and run after test finishes.

当我从Intellij IDEA Maven任务启动所有这些代码时，干净的Maven安装(甚至包括来自Jenkins的Maven任务)过程已成功启动，但测试仍在运行.我需要手动将其杀死.当我手动终止测试流程(Maven流程)时，我启动的外部流程将继续按预期工作.

When I launch each of these codes both from Intellij IDEA Maven task, clean Maven installation (and even Maven task from Jenkins) process started successfully but test remains running. I need to kill it manually. When I kill test process (Maven process) manually my launched external process continue to work as I expect.

这个挂起的测试过程暂时让我头疼.

This hung test process is my headache for the moment.

我浏览了许多材料，但没有发现任何根本原因，解决此问题的方法甚至解决方法.我看到我所有的尝试(也许，除了AntBuilder()之外)都会创建分离的进程.我想这可以与JVM设置关联.但是我找不到那个.

I looked through a lot of materials but didn't find any root cause, fix and even workaround for this issue. I see that all my attempts (perhaps, except of AntBuilder()) create deattached processes. I suppose that this can be connected with JVM settings. But I coudnl't find to which one.

我也尝试过

"full command to run my cmd".execute()

但这对我也没有帮助.

您能帮我解决问题吗?

预先感谢！

推荐答案

因此，我在这里看不到任何问题的答案.但是我有一些更新.

So, I do not see any answers for my issue here. But I have some updates.

我发现我可以使用PsExec工具代替直接的cmd调用:

I found that I can use PsExec tool instead of direct cmd calling:

def builder = new ProcessBuilder( 'psexec', 'cmd', '/c', '<name>.cmd' )
builder.directory( ( new File( <path_to_working_directory> ) ) )
builder.start()

当我仅从干净的Maven(不是从Jenkins)启动该代码时，此代码运行良好:进程已启动，Maven任务成功完成，该进程继续运行.

And this code works fine when I launch it from clean Maven only (not from Jenkins): process started, Maven task completes successfully, the process continues to run.

但是在执行此代码作为某些Maven2 Jenkins任务的一部分时，我不得不再次发出该命令:psexec已启动，但Jenkins任务正在运行，并且在手动终止Jenkins任务之前，我的进程未启动.

But during execute this code as part of some Maven2 Jenkins task I faced to issue again: psexec started but Jenkins task is running and my process does not started before I terminate Jenkins task manually.

为避免此问题，我创建了一个简单的附加Groovy服务脚本，该脚本以监听模式启动(并且在初始计算机准备过程中，手动在目标计算机上编写TCP服务器).该脚本始终在计算机上运行.

To avoid this issue I created simple additional Groovy service script I launch in listen mode (and Writing a TCP Server) on target machine manually during initial machine preparation. This script is running on machine always.

我将这个命令文件的侦听器名称发送给我，以从我从Jenkins启动的测试中执行，并且该命令成功执行了所有cmd:进程启动，Jenkins任务成功完成，进程继续运行.我在此侦听器中使用processbuilder.

I send to this listener name of command file to execute from my test I launch from Jenkins and it executes all cmds successfully: processes start, Jenkins task completes successfully, processes continue to run. I use processbuilder inside this listener.

对于发送名称，我使用简单套接字(编写TCP客户端)

For name sending I use simple socket (Writing a TCP Client)

我还找到了如何在Win32上将孩子与进程树分离?.但是对于我来说，我的方式看起来更像Groovy.

Also, I found how to detach child from process tree on win32?. But for me system my way looks more Groovy I think.

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