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_3_0.xsd"
    id="WebApp_ID" version="3.0">
    <display-name>wmuitp</display-name>

      <!--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

<!--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>

　　#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 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）

总结

　　spring quartz