变更点:
1.在servlet-context.xml文件中引入schedule的配置文件
<?xml version="1.0" encoding="UTF-8"?> <beans:beans xmlns="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation=" http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure --> <!-- Enables the Spring MVC @Controller programming model --> <annotation-driven> </annotation-driven> <!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources/ directory --> <resources mapping="/resources/**" location="/resources/" /> <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory --> <!-- <beans:bean --> <!-- class="org.springframework.web.servlet.view.InternalResourceViewResolver"> --> <!-- <beans:property name="prefix" value="/WEB-INF/views/" /> --> <!-- <beans:property name="suffix" value=".jsp" /> --> <!-- </beans:bean> --> <beans:bean id="templateResolver" class="org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver"> <beans:property name="prefix" value="/WEB-INF/views/" /> <beans:property name="suffix" value=".html" /> <!-- Template cache is true by default. Set to false if you want --> <!-- templates to be automatically updated when modified. --> <beans:property name="cacheable" value="false" /> </beans:bean> <!-- SpringTemplateEngine automatically applies SpringStandardDialect and --> <!-- enables Spring's own MessageSource message resolution mechanisms. --> <beans:bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine"> <beans:property name="templateResolver" ref="templateResolver" /> </beans:bean> <beans:bean class="org.thymeleaf.spring4.view.ThymeleafViewResolver"> <beans:property name="templateEngine" ref="templateEngine" /> </beans:bean> <!-- Imports user-defined @Controller beans that process client requests --> <beans:import resource="controllers.xml" /> <!-- Imports user-defined @Scheduled beans that process schedule tasks --> <beans:import resource="schedules.xml" /> </beans:beans>
在此文件的最后一行引入了schedules.xml
2.追加schedules.xml文件
<?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:task="http://www.springframework.org/schema/task" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!--扫描schedule类package--> <context:component-scan base-package="test.spring.schedule"/> <!--使用spring scheduled的核心配置,启动scheduled注解功能--> <task:annotation-driven /> </beans>
3.追加具体执行任务的类
/** * */ package test.spring.schedule; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.scheduling.annotation.Scheduled; import org.springframework.stereotype.Component; /** * @author dwxx-116 * */ @Component public class MySchedule { private static final Log logger = LogFactory.getLog(MySchedule.class); @Scheduled(fixedRate=2000) public void processQueues() { logger.info("start to processQueues,time:" + System.currentTimeMillis()); } }
本示例只是简单的做了测试,定时任务每2秒钟重复执行一次,当然spring Scheduled通过cron表达式支持更加灵活的调度配置。
4.追加依赖jar包aopalliance-1.0.jar
最终的工程目录
完整的工程代码请参考附件