如何杀死由java中的进程启动的子进程? [英] How to kill a child process started by process in java?

问题描述

在下面的代码片段中，如果我使用 p.destroy() 销毁 Process p 只处理 p(iecmd.exe) 正在被破坏.但不是它的子iperf.exe.如何在 Java 中终止此进程.

In the below code snippet, if I destroy Process p using p.destroy() only process p(i.e.cmd.exe) is getting destroyed. But not its child iperf.exe. How to terminate this process in Java.

Process p= Runtime.getRuntime().exec("cmd /c iperf -s > testresult.txt");

推荐答案

在 Java 7 ProcessBuilder 可以为你做重定向，所以直接运行iperf而不是通过cmd.exe.

In Java 7 ProcessBuilder can do the redirection for you, so just run iperf directly rather than through cmd.exe.

ProcessBuilder pb = new ProcessBuilder("iperf", "-s");
pb.redirectOutput(new File("testresult.txt"));
Process p = pb.start();

结果 p 现在是 itext 本身，所以 destroy() 将按您的要求工作.

The resulting p is now itext itself, so destroy() will work as you require.

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