代码获取进程号pid

    public static int getPid() {
        if (PID < 0) {
            try {
                RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
                String name = runtime.getName(); // format: "pid@hostname"
                PID = Integer.parseInt(name.substring(0, name.indexOf('@')));
            } catch (Throwable e) {
                PID = 0;
            }
        }
        return PID;
    }

我自己写的

Java获取当前进程：

@Override
public void afterPropertiesSet() throws Exception {
    tab();
    show("进程：" + ManagementFactory.getRuntimeMXBean().getName());
    show("进程ID：" + ManagementFactory.getRuntimeMXBean().getName().split("@")[0]);
    tab();
}

进程：62893@zhouzhenyongdeMacBook.local
进程ID：62893

jps确认

zhouzhenyong@zhouzhenyongdeMacBook ~> jps
849 JswLauncher
62488 Launcher
33291
63196 Jps
62892 Launcher
62893 ClientApplication

rocketmq获取pid方式

public static int getPid() {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    String name = runtime.getName(); // format: "pid@hostname"
    try {
        return Integer.parseInt(name.substring(0, name.indexOf('@')));
    } catch (Exception e) {
        return -1;
    }
}