spring task 定时任务实现示例
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2024-03-08 18:13:40
一、引入spring相关jar包:
二、在web.xml中配置spring
s...
一、引入spring相关jar包:
二、在web.xml中配置spring
<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
<?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
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:
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