blocks|key|2467700|text|最终得到了一些可行的东西，尽管这是一种间接的方式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2467701|Apache+Commons+Exec+API包含返回java.lang.Process对象的CommandLauncher类。多亏了link|offset|length|2467702|这里是从java.lang.Process获取windows进程Id的link。它使用JNA库。|2467703|最后是进程Id，这里是杀死进程树的命令串//String+killCmd+=+"taskkill+/F+/T+/PID“%2BJNAHandler.getPid(进程)；|2467704|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/7625758/process-object-from-apache-commons-exec/7625877#7625877|1|https://stackoverflow.com/questions/4912282/java-tool-method-to-force-kill-a-child-process/6032734#6032734^0|0|1V|4|0|0|Z|4|1|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@$D|Z|E|10|1|11]]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]]]

Finally got something workable even though its a roundabout way. 
Apache Commons Exec API contains the CommandLauncher class that returns a java.lang.Process object. Thanks to the <a href="https://stackoverflow.com/questions/7625758/process-object-from-apache-commons-exec/7625877#7625877">link</a>

Here the <a href="https://stackoverflow.com/questions/4912282/java-tool-method-to-force-kill-a-child-process/6032734#6032734">link</a> to get the windows Process Id from a java.lang.Process. This uses the JNA libraries. 

Finally with the Process Id, here the command string that kills the process tree 
//String killCmd = "taskkill /F /T /PID " + JNAHandler.getPid(process);

blocks|key|5805150|text|不幸的是，正如您已经发现的那样，没有一种纯Java方法可以做到这一点。您必须求助于本机命令或JNI库，所有这些都依赖于平台，并且比纯Java解决方案更复杂。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5805151|可能值得对Java数据库中的相关bug进行提升：http://bugs.sun.com/view_bug.do?bug_id=4770092|offset|length|5805152|幸运的是，我们可以说服Java开发人员相信，Java+8对子进程的糟糕处理是值得修复的。|5805153|entityMap|0|LINK|mutability|MUTABLE|url|http://bugs.sun.com/view_bug.do?bug_id=4770092^0|0|O|1A|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Unfortunately, as you've discovered, there isn't a pure Java way of doing this. You'll have to resort to native commands or JNI libraries, all of which are platform-dependent and more complex than a pure Java solution would be.

It may be worth upvoting the relevant bug in the Java bug database: <a href="http://bugs.sun.com/view_bug.do?bug_id=4770092" rel="nofollow">http://bugs.sun.com/view_bug.do?bug_id=4770092</a>

With luck we can persuade the Java developers that the poor handling of subprocesses is worth fixing for Java 8.

blocks|key|2467694|text|据我所知，commons-exec中没有这样的选项。甚至不可能获得您刚启动的任何进程的PID。您可以在bash脚本中终止(+trap+)+kill信号，并在脚本进程终止时让处理程序删除子进程。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2467695|entityMap^0|1Q|4|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

As far as I know, there's no such option in commons-exec. It's not even possible to obtain the PID of whatever process you just started. You could <code>trap</code> the kill signal within your bash script, and have the handler kill the subprocess(es) when the script process is killed.

blocks|key|5805188|text|从Java版本9开始，Java已经提出了可以查询和终止主进程及其子进程的功能。用于查询子进程的代码片段|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5805189|import+java.io.IOException;

public+class+ProcessTreeTest+{
+++public+static+void+main(String+args[])+throws+IOException+{
++++++Runtime.getRuntime().exec("cmd");
+++++
++++++System.out.println("Showing+children+processes:");
++++++ProcessHandle+processHandle+=+ProcessHandle.current();
++++++processHandle.children().forEach(childProcess+->
++++++++++++++System.out.println("PID:+"+%2B+childProcess.pid()+%2B+"+Command:+"+%2B+childProcess.info().command().get()));
+++++
++++++System.out.println("Showing+descendant+processes:");
++++++processHandle.descendants().forEach(descendantProcess+->
++++++++++++++System.out.println("PID:+"+%2B+descendantProcess.pid()+%2B+"+Command:+"+%2B+++descendantProcess.info().command().get()));
+++}
}|code-block|syntax|javascript|5805190|为了终止进程及其子进程，Java9让API迭代进程的所有children，并在每个进程上调用destroy|offset|length|style|CODE|5805191|例如:与您的示例一样，您将从apache-commons获取Process对象，然后尝试以下代码|5805192|Process+child+=+...;
kill+(child.toHandle());

public+void+kill+(ProcessHandle+handle)
{
++++handle.descendants().forEach((child)+->+kill(child));
++++handle.destroy();
}|5805193|参考文献：|5805194|https://docs.oracle.com/javase/9/docs/api/java/lang/ProcessHandle.html|5805195|https://www.tutorialspoint.com/how-to-traverse-a-process-tree-of-process-api-in-java-9|5805196|How+do+i+terminate+a+process+tree+from+Java?|5805197|5805198|注意--我还没有尝试过这个功能，只是读了一些关于Java9的文章，觉得在这里分享很有帮助。|blockquote|5805199|5805200|entityMap|0|LINK|mutability|MUTABLE|url|1|2|https://stackoverflow.com/questions/10124299/how-do-i-terminate-a-process-tree-from-java^0|0|0|S|8|1A|7|0|0|0|0|0|1Y|0|0|0|2E|1|0|0|18|2|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1E|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1F|8|@$I|1G|J|1H|K|L]|$I|1I|J|1J|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1K|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1L|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|1M|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1N|8|@]|9|@$I|1O|J|1P|1|1Q]]|A|$]]|$1|U|3|V|5|6|7|1R|8|@]|9|@$I|1S|J|1T|1|1U]]|A|$]]|$1|W|3|X|5|6|7|1V|8|@]|9|@$I|1W|J|1X|1|1Y]]|A|$]]|$1|Y|3|-4|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|Z|3|10|5|11|7|20|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|21|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|22|8|@]|9|@]|A|$]]]|14|$15|$5|16|17|18|A|$19|T]]|1A|$5|16|17|18|A|$19|V]]|1B|$5|16|17|18|A|$19|1C]]]]

Java Version 9 Onwards,
Java has come up with feature that can query and kill the main process and its descendants.
A code snippet to query about the child processes
<pre><code>import java.io.IOException;

public class ProcessTreeTest {
 public static void main(String args[]) throws IOException {
 Runtime.getRuntime().exec(&quot;cmd&quot;);
 
 System.out.println(&quot;Showing children processes:&quot;);
 ProcessHandle processHandle = ProcessHandle.current();
 processHandle.children().forEach(childProcess -&gt;
 System.out.println(&quot;PID: &quot; + childProcess.pid() + &quot; Command: &quot; + childProcess.info().command().get()));
 
 System.out.println(&quot;Showing descendant processes:&quot;);
 processHandle.descendants().forEach(descendantProcess -&gt;
 System.out.println(&quot;PID: &quot; + descendantProcess.pid() + &quot; Command: &quot; + descendantProcess.info().command().get()));
 }
}
</code></pre>
To kill the process and its children, Java9 has API
Iterate through all the <code>children</code> of the process and call <code>destroy</code> on each of them
For Example : As in your case you are getting Process object from apache-commons, then try out following code
<pre><code>Process child = ...;
kill (child.toHandle());

public void kill (ProcessHandle handle)
{
 handle.descendants().forEach((child) -&gt; kill(child));
 handle.destroy();
}
</code></pre>
References :
<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/ProcessHandle.html" rel="nofollow noreferrer">https://docs.oracle.com/javase/9/docs/api/java/lang/ProcessHandle.html</a>
<a href="https://www.tutorialspoint.com/how-to-traverse-a-process-tree-of-process-api-in-java-9" rel="nofollow noreferrer">https://www.tutorialspoint.com/how-to-traverse-a-process-tree-of-process-api-in-java-9</a>
<a href="https://stackoverflow.com/questions/10124299/how-do-i-terminate-a-process-tree-from-java">How do i terminate a process tree from Java?</a>
<blockquote>
Note - I have not tried this feature, Just reading about Java9 and
found helpful to share here.
</blockquote>

I have a Java webstart process that is part of a windows batch script. I'm using the javaws command in a batch script in this case.
This match script ( start.bat) is invoked programatically using the "apache commons exec". Under some conditions the java process invoked by javaws hangs and I'd have to kill the entire process thread starting from the batch script start.bat.
Is there a programatic way of doing killing an entire process tree through apache commons exec?

I've tried using the "execWatchdog.destroyProcess();" on the "start.bat" script. However it only kills the start.bat process and not the entire process tree.

Is there a way of killing the entire process tree through apache-commons-exec or a similar code?

I've seen this question <a href="https://stackoverflow.com/questions/604522/performing-equivalent-of-kill-process-tree-in-c-on-windows">Performing equivalent of &quot;Kill Process Tree&quot; in c++ on windows</a> that performs an equivalent task in c++. I'm wondering if anyone has implemented calling windows native system calls through JNI.

"Kill a process tree" on windows using Java

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云AI代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

功能1上新10个字符

功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符。

功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

文章&问答评论现已支持表情

全新交互，全新视觉，新增快捷键、悬浮工具栏、高亮块等功能并同时优化现有功能，全面提升创作效率和体验

社区富文本编辑器全新改版！诚邀体验～ 

精选全网热门MCP server，让你的AI更好用 🚀

💥开发者 MCP广场重磅上线！

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

我有一个Java webstart进程，它是windows批处理脚本的一部分。在本例中，我在批处理脚本中使用javaws命令。使用"apache commons exec“以编程方式调用此匹配脚本( start.bat)。在某些情况下，javaws调用的java进程会挂起，我必须从批处理脚本start.bat开始终止整个进程线程。有没有一种编程方法可以通过apache commons exec杀死

问使用Java在windows上“杀死进程树”
EN

回答 4

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问使用Java在windows上“杀死进程树”EN

回答 4

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问使用Java在windows上“杀死进程树”
EN