如何在HTML中建立链接以在Java中启动计时器？

Question

I added the code bellow... So, basically, its a timer, that starts every 7 seconds to write something in the console...

now i have a html page...from witch i want to make a link... and that link should start the timer...

@Resource
private TimerService timerService;

@PostConstruct
private void init() {
    timerService.createTimer(1000, 7000, "1");
}

the code above set the timer to 7 sec, and i pass the arg 1 to it...i need it later on...

// public Timer timer = timerService.createTimer(1000, 10000, "1");



@Timeout
@GET
@Path("/timerStart")
public void TimeOut(Timer timer) {

    /*
     * String ss = timer.getInfo().toString(); String brojS =
     * ss.substring(0, 1); ss.substring(1);
     */
    Long brojI = Long.parseLong(timer.getInfo().toString(), 10);
    // HttpServletRequest req = (HttpServletRequest) timer.getInfo().
    // //@Context HttpServletRequest req
    // execute(,brojI);

    System.out.println("Timer Service : " + timer.getInfo());
    System.out.println("Current Time : " + new Date());
    System.out.println("Next Timeout : " + timer.getNextTimeout());
    System.out.println("Time Remaining : " + timer.getTimeRemaining());
    System.out.println("____________________________________________");

}

the problem is, that once i run the server...the timer starts also...and thats a problem...i need him to start once i press the link on the html page...

any suggestions?

Answer 1

Create an anchor tag and use onclick event to trigger an ajax

HTML

<a href="" onclick="someFunction()"> Start Timer</a>

JS

somefunction(){
  // ajax request
}

Answer 2

I solved it:

This goes into the html page:

<a href="rest/dss/startTimers">Start Timer</a>

and this goes into the code:

@Resource
private TimerService timerService;

@GET
@Path("/startTimers")
public void init() {
    System.out.println("Started the timer!");
    timerService.createTimer(1000, 1000, "1");
}

@Timeout
public void execute(Timer timer) {
    System.out.println("Timer Service : " + scriptId);
    System.out.println("Current Time : " + new Date());
    System.out.println("Next Timeout : " + timer.getNextTimeout());
    System.out.println("Time Remaining : " + timer.getTimeRemaining());
    System.out.println("____________________________________________");

}

and btw, here is a code to stop the timer:

@GET
@Path("/stopAllTimers")
public void StopTimer() {

    for (Timer timer : timerService.getAllTimers()) {
        System.out.println("All Timers Stopped");
        timer.cancel();
    }
}

and the link in the html page:

<a href="rest/dss/stopAllTimers">Stop All Timers</a>