使用xml配置文件加载quartz
在上节介绍中并没有用到任何的配置文件，而在我们项目工程中常使用xml来加载。Quartz支持配置文件，它的好处是比编写代码简单，且修改后不需要重新编译源码
- 配置quartz.properties文件
该文件来配置quartz的各种属性，包括线程数，线程优先级，加载的job文件，扫描的时间间隔等一系列属性
新建quartz.properties在项目的classpath下，加载必要的jar包
项目代码：
#============================================================================
# Configure Main Scheduler Properties
#============================================================================
# 实例名
org.quartz.scheduler.instanceName = QuartzScheduler
# 实例ID
org.quartz.scheduler.instanceId = AUTO
#============================================================================
# Configure ThreadPool
#============================================================================
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool
# 线程个数
org.quartz.threadPool.threadCount = 3
org.quartz.threadPool.threadPriority = 5
#============================================================================
# Configure JobStore
#============================================================================
org.quartz.jobStore.misfireThreshold = 60000
org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore
#============================================================================
# Configure Plugins
#============================================================================
org.quartz.plugin.triggHistory.class = org.quartz.plugins.history.LoggingJobHistoryPlugin
# org.quartz.plugins.xml.JobInitializationPlugin是Quartz自带的插件，
# 默认时，这个插件会在 classpath 中搜索名为 quartz_jobs.xml
# 的文件并从中加载 Job 和 Trigger 信息
# v1.8之前用JobInitializationPlugin
#org.quartz.plugin.jobInitializer.class = org.quartz.plugins.xml.JobInitializationPlugin
org.quartz.plugin.jobInitializer.class = org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin
org.quartz.plugin.jobInitializer.fileNames = quartz_jobs.xml
org.quartz.plugin.jobInitializer.failOnFileNotFound = true
org.quartz.plugin.jobInitializer.scanInterval =10
org.quartz.plugin.jobInitializer.wrapInUserTransaction = false
# 关闭quartz新版本检测功能
org.quartz.scheduler.skipUpdateCheck = true
- 配置job.xml
加载触发器类型，定义触发器属性等一系列jobDetail操作
<?xmlversion="1.0"encoding="UTF-8"?>
<job-scheduling-dataxmlns="http://www.quartz-scheduler.org/xml/JobSchedulingData"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.quartz-scheduler.org/xml/JobSchedulingData http://www.quartz-scheduler.ogr/xml/job_scheduling_data_1_8.xsd"
version="1.8">
<pre-processing-commands>
<!--在执行作业和触犯器之前执行的命令-->
<delete-jobs-in-group>*</delete-jobs-in-group>
<!--删除标示组中的所有作业，如果是“*”,则删除所有组中的作业，同时也会删除与作业有关的触犯器 -->
<delete-triggers-in-group>*</delete-triggers-in-group>
<!--删除标示组中的所有触犯器，如果是“*”,则删除所有组中的触发器 -->
<delete-job>
<!--删除指定的作业，同时也会删除与它关联的触犯器 -->
<name></name>
<group></group>
</delete-job>
<delete-trigger>
<!--删除指定的触犯器 -->
<name></name>
<group></group>
</delete-trigger>
</pre-processing-commands>
<processing-directives>
<!--在计划作业和触发器是应遵循的命令和原则 -->
<overwrite-existing-data>true or false</overwrite-existing-data>
<!--是否复写已经存在的任务计划数据，如果为false并且ingore-duplicates非false，那么文件中同名的触发器或作业将会继续存在，则会产生错误-->
<ignore-duplicates>true or false</ignore-duplicates>
<!--如果为true，计划中的任何同名的作业/触发器将会被忽略，不会产生错误-->
</processing-directives>
<schedule>
<job>
<name>JobName</name>
<group>JobGroup</group>
<description></description>
<job-class></job-class>
<job-listener-ref></job-listener-ref>
<!-- volatility,durability,recover必须按顺序设定 -->
<volatility></volatility>
<durability></durability>
<recover></recover>
<job-data-map>
<!-- entry可以设定多个-->
<entry>
<key></key>
<value></value>
</entry>
</job-data-map>
</job>
<trigger>
<!-- Trigger分为simple，cron，date-interval三种类型，一个trigger中只能指定一种类型-->
<simple>
<name></name>
<group></group>
<description></description>
<job-name></job-name>
<job-group></job-group>
<calendar-name></calendar-name>
<volatility></volatility>
<job-data-map>
<entry>
<key></key>
<value></value>
</entry>
</job-data-map>
<start-time></start-time>
<end-time></end-time>
<misfire-instruction></misfire-instruction>
<repeat-count></repeat-count>
<repeat-interval></repeat-interval>
</simple>
<cron>
<name></name>
<group></group>
<description></description>
<job-name></job-name>
<job-group></job-group>
<calendar-name></calendar-name>
<volatility></volatility>
<job-data-map>
<entry>
<key></key>
<value></value>
</entry>
</job-data-map>
<start-time></start-time>
<end-time></end-time>
<misfire-instruction></misfire-instruction>
<cron-expression></cron-expression>
<time-zone></time-zone>
</cron>
<date-interval>
<name></name>
<group></group>
<description></description> <job-group></job-group>
<job-data-map>
<entry>
<key></key>
<value></value>
</entry>
</job-data-map>
<start-time></start-time>
<end-time></end-time>
<misfire-instruction></misfire-instruction>
<repeat-interval></repeat-interval>
<repeat-interval-unit></repeat-interval-unit>
</date-interval>
</trigger>
</schedule>
</job-scheduling-data>
本例使用的quartz版本为1.8.6，现在已经更新到2.0以上版本
本例quartz_job.xml
<?xmlversion="1.0"encoding="UTF-8"?>
<job-scheduling-dataxmlns="http://www.quartz-scheduler.org/xml/JobSchedulingData"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.quartz-scheduler.org/xml/JobSchedulingData http://www.quartz-scheduler.org/xml/job_scheduling_data_1_8.xsd"
version="1.8">
<pre-processing-commands>
<delete-jobs-in-group>*</delete-jobs-in-group> <!-- clear all jobs in scheduler -->
<delete-triggers-in-group>*</delete-triggers-in-group><!-- clear all triggers in scheduler -->
</pre-processing-commands>
<processing-directives>
<overwrite-existing-data>true</overwrite-existing-data>
<ignore-duplicates>false</ignore-duplicates>
</processing-directives>
<schedule>
<job>
<name>helloQuartzJob</name>
<group>DEFAULT</group>
<description>简单的quartz使用</description>
<job-class>HelloQuartzJob</job-class>
<volatility>false</volatility>
<durability>true</durability>
<recover>false</recover>
</job>
<trigger>
<cron>
<name>trigger</name>
<group>DEFAULT</group>
<job-name>helloQuartzJob</job-name>
<job-group>DEFAULT</job-group>
<cron-expression>30/5 * * * * ?</cron-expression>
</cron>
</trigger>
</schedule>
</job-scheduling-data>
-
建立测试用例
public class HelloQuartzScheduling { @Test public void testQuartz() throws SchedulerException, ParseException { // 加载quartz容器 SchedulerFactory schedulerFactory = new StdSchedulerFactory(); Scheduler scheduler = schedulerFactory.getScheduler(); scheduler.start(); } }
和spring相结合
在spring-content里加入bean
<!--使用MethodInvokingJobDetailFactoryBean，任务类可以不实现Job接口，通过targetMethod指定调用方法-->
<!-- 定义目标bean和bean中的方法 -->
<bean id="SpringQtzJob" class="com.chenfan.server.HelloQuartzJob"/>
<bean id="SpringQtzJobMethod" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject">
<ref bean="SpringQtzJob"/>
</property>
<property name="targetMethod"> <!-- 要执行的方法名称 -->
<value>execute</value>
</property>
</bean>
<!-- ======================== 调度触发器 ======================== -->
<bean id="CronTriggerBean" class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail" ref="SpringQtzJobMethod"></property>
<property name="cronExpression" value="0/5 * * * * ?"></property>
</bean>
<!-- ======================== 调度工厂 ======================== -->
<bean id="SpringJobSchedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="CronTriggerBean"/>
</list>
</property>
</bean>
在web.xml里加载spring-content.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-config.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>