Spring定时器（使用注解）

<!-- 定时器开关 开始-->
 <task:annotation-driven />

package com.test.control.base;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class SpringTimerTest {

 /**
  * 启动时执行一次，之后每隔3秒执行一次
  */
 @Scheduled(fixedRate = 1000 * 3)
 public void print() {
  System.out.println("timer running...");
 }
 
 /**
  * 定时启动。每天凌晨 16:19 执行一次
  */
 @Scheduled(cron = "0 19 16 * * *")
 public void show() {
  System.out.println("定时器启动...");
 }
}

public static void main(String[] args) {
  ApplicationContext ctx = new ClassPathXmlApplicationContext("springmvcContext.xml");
 }