使用另一个Java程序调度Java程序

Question

As part of automation I want to schedule a java program after 12 hours using another java program that is currently running. My client machine is windows. I can't say when my first script will start and once it ends, it has to schedule the second script which should start after 12 hours. Any suggestions on how to do it?

Answer 1

I would use java.util.Timer.schedule(TimerTask task, long delay). The task that you schedule can then invoke the second java program appropriately. For example:

public void scheduleTask() {
    Timer timer = new Timer();
    timer.schedule(new TimerTask() {
        public void run() {
            try {
                Runtime.getRuntime().exec("java secondprog.class &");
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }, 12*1000*60*60);

}

Answer 2

查看Quartz（一个Java调度库）。

Answer 3

You can use the Windows at command to schedule a task to run. This can be done via a system call.

This has already been answered here: https://stackoverflow.com/a/3397348/2471910