前言:Quartz 是 OpenSymphony 开源组织在任务调度领域的一个开源项目,完全基于Java实现
Quartz详解:本人写的一篇关于Quartz详解链接,点击链接跳转
Spring和Quart整合流程详解:
第一步:导入依赖(Maven管理):
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz-jobs</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
</dependencies>
第二步:创建MyJob类,并实现org.quartz.Job接口,任务类
public class MyJob implements Job {
@Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
System.out.println("定时任务启动");
//可以调用自定义方法
}
}
第三步:配置applicationContext_quartz.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!--任务工厂创建-->
<bean id="jobDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
<!-- 指定名称 -->
<property name="name" value="new_job" />
<!-- 指定分组 -->
<property name="group" value="new_job_group" />
<!-- 指定具体的类 -->
<property name="jobClass" value="com.java.job.Job " />
<!-- 必须设置为true,如果为false,当没有活动的触发器与之关联时会在调度器中会删除该任务 -->
<property name="durability" value="true" />
<!--避免Job类中获取不到Spring容器-->
<property name="applicationContextJobDataKey" value="applicationContext" />
</bean>
<!--触发器的bean-->
<bean id="cronTrigger"
class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
<!-- 指定名称 -->
<property name="name" value="new_trigger" />
<!-- 指定名称 -->
<property name="group" value="new_trigger_group1" />
<!-- 指定绑定的Job -->
<property name="jobDetail" ref="jobDetail" />
<!-- 指定Cron 的表达式 ,当前是每隔1s运行一次 -->
<property name="cronExpression" value="0 20 20 * * ? *" />
</bean>
<!-- 定义调度器,并将Trigger注册到调度器中 -->
<bean id="scheduler"
class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="cronTrigger" />
</list>
</property>
</bean>
</beans>
第四步:最重要的一步
- applicationContext.xml改成applicationContext*.xml,这样才会加载到quartz的配置文件
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
改成
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext*.xml</param-value>
</context-param>
注意:
<property name="cronExpression" value="0 20 20 * * ? *" />
使用了cron表达式,大家测试的时候需要更改时间,这里只是指定了20分和晚上8点