如何获取我刚刚在 java 程序中启动的进程的 PID? [英] How to get PID of process I've just started within java program?

问题描述

我已经使用以下代码启动了一个流程

I've started a process with following code

 ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "path");
 try {
     Process p = pb.start();       
 } 
 catch (IOException ex) {}

现在我需要知道我刚刚启动的进程的 pid.

Now I need to know the process's pid that I've just started.

推荐答案

自从 Java 9 类 Process 有了新方法 long pid()，所以它是简单如

Since Java 9 class Process has new method long pid(), so it is as simple as

ProcessBuilder pb = new ProcessBuilder("cmd", "/c", "path");
try {
    Process p = pb.start();
    long pid = p.pid();      
} catch (IOException ex) {
    // ...
}

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