1、要使用jps，要安装JDK（1.5及以后版本）JDK的bin要配置到classpath中先来段脚手架代码：Code:package schedule;import java.util.Date;import java.util.Timer;import java.util.TimerTask;public class JDKTimerDemo { public static void main(String[] args) { Timer timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { System.out.println(Thread.currentThread() + " is running"); } }, new Date(), 6000); }}
2、执行下看看结果：Thread[Timer-0,5,main] is runningThread[Timer-0,5,main] is runningThread[Timer-0,5,main] is runningThread[Timer-0,5,main] is runningThread[Timer-0,5,main] is runningThread[Timer-0,5,main] is running
3、现在有个一直在跑的javat程序了来使用jps命令来查看-m参数输出传递给main 方法的参数命令：jps -m看看执行结果可以看到刚才的已经执行的代码schedule.JDKTimerDemoOutput:9736 AppMainschedule.JDKTimerDemo16127788 Jps -m
4、-l 参数输出应用程序main class的完整package名 或者 应用程序的jar文件完整路径名看看执行结果Output:C:\Users\Administrator>jps -l6064 sun.tools.jps.Jps9736 com.intellij.rt.execution.application.AppMain1612
5、-v输出传递给JVM的参数
6、最常用的用法命令：jps -lvm
