timer.schedule定时器的使用

package com.sms.util;

import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

/**
* @author nidayu
* @Description:
* @date 2015/9/16
*/
public class TimeSchedule {
private static Timer timer;
private static TimerTask task;

public static void stopTask() {
if (timer != null) {
timer.cancel();
timer.purge();
}
if (task != null){
task.cancel();
}
task = null;
timer = null;
}

public static void startTask(Date date, long interval) {
if (timer != null){
//正常启动的话，应该不会进来！
timer.cancel();
timer = null;
}
if (task != null){
//正常启动的话，应该不会进来！
task.cancel();
task = null;
}
if (timer == null) {
timer = new Timer();
}
if (task == null) {
task = new TimerTask() {
@Override
public void run() {
//ToDo something
}
};
}
//interval：间隔秒数，date：开始时间
timer.schedule(task, date, interval * 1000);
}
}