前言
项目需求：
二维码推送到一体机上，给学生签到扫描用。然后需要的是 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，搞了个小样例给大家。
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，可以集成几乎任何的java应用程序—从小的单片机系统到大型的电子商务系统。Quartz可以执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-scheduler.org/documentation/quartz-2.2.x/quick-start
实战
第一步 ：spring、quartz 相应的jar包，添加到项目中（需要的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="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>quartz</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!--Spring WebApplicationContext上下文，称为父上下文（父容器） -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--Srping <listener> <listener-class> org.springframework.web.context.request.RequestContextListener
</listener-class> </listener> -->
<!--加载spring的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!--Spring MVC 配置 DispatcherServlet -->
<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配置，解决编码问题 -->
<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>
<!--OpenSessionInViewFilter配置，解决延迟加载时Session会关闭的问题 -->
<!-- <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过期时间： 20 -->
<session-config>
<session-timeout>20</session-timeout>
</session-config>
<!-- 错误界面 -->
<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配置文件中配置quartz任务调度(applicationContext.xml)
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!--Quartz-->
<!-- 集成方式：JobDetailFactoryBean，并且任务类需要继承QuartzJobBean-->
<!-- 定义jobDetail -->
<bean id="jobDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
<!-- durability 表示任务完成之后是否依然保留到数据库，默认false -->
<property name="durability" value="true" />
<!-- 目标类 /wmuitp/src/test/SpringQuartz.java-->
<property name="jobClass" value="test.SpringQuartzTest"></property>
<!-- 在这个例子中，jobDataAsMap没有用，此目标类中接受的参数 ,若参数为service，则可以在此进行参数配置，类似struts2 -->
<!--
<property name="jobDataAsMap">
<map>
<entry key="service"><value>simple is the beat</value></entry>
</map>
</property>
-->
</bean>
<!-- 定义simpleTrigger触发器 -->
<!--
<bean id="simpleTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerBean">
<property name="jobDetail" ref="jobDetail"></property>
<property name="repeatCount">
<value>8</value>
</property>
<property name="repeatInterval">
<value>1000</value>
</property>
<property name="startDelay">
<value>4</value>
</property>
</bean>
-->
<!-- 另一种触发器是CornTrigger -->
<bean id="cornTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
<property name="jobDetail" ref="jobDetail"/>
<!-- 每个10秒触发 -->
<property name="cronExpression" value="0/10 * * * * ?"/>
</bean>
<!-- 定义核心调度器 -->
<bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<ref bean="cornTrigger"/>
</property>
</bean>
</beans>#目标类
<property name="jobClass" value="test.SpringQuartzTest"></property>
下面第四步：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("执行调度任务："+new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.fff").format(new Date()+"开始执行"));
System.out.println("执行调度任务："+new Date());
}
@Override
protected void executeInternal(JobExecutionContext arg0)
throws JobExecutionException {
this.work();
}
}#需要继承QuartzJobBean测试运行结果（这个很重要 能服众）
需要源码的可以留言给我，一定奉上。还请多多指教
来源：oschina
链接：https://my.oschina.net/u/2250952/blog/663851