700字范文 > 项目ITP(五) spring4.0 整合 Quartz 实现任务调度

项目ITP(五) spring4.0 整合 Quartz 实现任务调度

时间：2022-05-17 12:38:03

-05-16 22:51 by Jeff Li

前言

系列文章：[传送门]

项目需求：

二维码推送到一体机上，给学生签到扫描用。

然后须要的是上课前20分钟。幸好在帮带我的学长做 p2p 的时候。接触过。自然 quartz 是首选。所以我就配置了下，搞了个小例子给大家。

正文

spring4.0 整合 Quartz 实现任务调度。这是期末项目的最后一篇。剩下到暑假吧。

Quartz介绍

Quartz is a full-featured, open source job scheduling service that can be integrated with, or used along side virtually any Java application - from the smallest stand-alone application to the largest e-commerce system. Quartz can be used to create simple or complex schedules for executing tens, hundreds, or even tens-of-thousands of jobs; Quartz框架是一个全功能、开源的任务调度服务。能够集成差点儿不论什么的java应用程序—从小的单片机系统到大型的电子商务系统。

Quartz能够运行上千上万的任务调度。

核心概念Quartz核心的概念：scheduler任务调度、Job任务、Trigger触发器、JobDetail任务细节相关文档：http://www.quartz-/documentation/quartz-2.2.x/quick-start

实战

第一步：spring、quartz 对应的jar包，加入到项目中（须要的call me）

/WEB-INF/lib/quartz-2.2.1.jar

以及spring的一些必要包

第二步：web.xml中配置spring

xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="/2001/XMLSchema-instance" xmlns="/xml/ns/javaee" xsi:schemaLocation="/xml/ns/javaee /xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>wmuitp</display-name>  <listener> <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>  <servlet> <servlet-name>springServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>  <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>  <filter> <filter-name>openSessionInViewFilter</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> </filter> <filter-mapping> <filter-name>openSessionInViewFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>  <session-config> <session-timeout>20</session-timeout> </session-config>  <error-page> <exception-type>java.lang.Throwable</exception-type> <location>/WEB-INF/error/500.jsp</location> </error-page> <error-page> <error-code>500</error-code> <location>/WEB-INF/error/500.jsp</location> </error-page> <error-page> <error-code>404</error-code> <location>/WEB-INF/error/404.jsp</location> </error-page> <error-page> <error-code>400</error-code> <location>/WEB-INF/error/400.jsp</location> </error-page> </web-app>

#有些你不用的，就不要写了。

第三：在spring配置文件里配置quartz任务调度

<bean id="jobDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean"><property name="durability" value="true" /> <property name="jobClass" value="test.SpringQuartzTest"></property></bean><bean id="cornTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean"><property name="jobDetail" ref="jobDetail"/><property name="cronExpression" value="0/10 * * * * ?"/></bean> <bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"><property name="triggers"><ref bean="cornTrigger"/></property></bean>

#目标类

以下第四步：编写目标类

package test;import java.util.Date;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.springframework.scheduling.quartz.QuartzJobBean;public class SpringQuartzTest extends QuartzJobBean{/*业务实现*/public void work() {System.out.println("运行调度任务："+new Date());}@Overrideprotected void executeInternal(JobExecutionContext arg0)throws JobExecutionException {this.work();}}

#须要继承QuartzJobBean測试执行结果（这个非常重要能服众）