一、引入spring相关jar包:
二、在web.xml中配置spring
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< listener > < description >Spring监听器</ description > < listener-class >org.springframework.web.context.ContextLoaderListener</ listener-class > </ listener > < context-param > < param-name >contextConfigLocation</ param-name > < param-value >classpath:applicationContext.xml</ param-value > </ context-param > |
三、在applicationContext.xml中配置监听器
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<? xml version = "1.0" encoding = "UTF-8" ?> < beans xmlns = "http://www.springframework.org/schema/beans" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xmlns:context = "http://www.springframework.org/schema/context" xmlns:task = "http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd" default-lazy-init = "false" > <!-- 注解方式 --> < context:annotation-config /> < context:component-scan base-package = "com.test.task" /> < task:annotation-driven /> <!-- XML方式 --> <!-- <bean name="testTask" class="com.test.task.TestTask" lazy-init="false"></bean> <task:scheduled-tasks> <task:scheduled ref="testTask" method="print" cron="0/5 * * * * ?"/> </task:scheduled-tasks> --> </ beans > |
四、编写实体类
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package com.test.task; import java.text.DateFormat; import java.util.Date; import org.springframework.scheduling.annotation.Scheduled; import org.springframework.stereotype.Component; @Component public class TestTask { @Scheduled (cron = "*/5 * * * * ?" ) public void print(){ String time = DateFormat.getDateTimeInstance().format( new Date()); System.out.println( "定时器触发打印" +time); } } |
五、工程目录:
运行结果:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。