quartz快速入门(一)

quartz学习笔记

1,quick start

第一步:创建maven项目

管理依赖

<projectxmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>cn.simple.projects</groupId>

  <artifactId>quartztest</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <dependencies>

  <dependency>

      <groupId>org.quartz-scheduler</groupId>

      <artifactId>quartz</artifactId>

      <version>2.2.3</version>

  </dependency>

  <dependency>

      <groupId>org.quartz-scheduler</groupId>

      <artifactId>quartz-jobs</artifactId>

      <version>2.2.3</version>

  </dependency>

  </dependencies>

  <build/>

</project>

 

第二步:利用官网的quickstart先跑起来

http://www.quartz-scheduler.org/documentation/quartz-2.1.x/quick-start.html

 

package cn.simple.quartz.test;

 

import org.quartz.Scheduler;

import org.quartz.SchedulerException;

import org.quartz.impl.StdSchedulerFactory;

 

public class QuartzQuickStart {

        public static void main(String[] args) {

 

         try {

             // Grab the Scheduler instance from the Factory

             Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();

             // and start it off

             scheduler.start();

             scheduler.shutdown();

         } catch (SchedulerException se) {

             se.printStackTrace();

         }

     }

}

 

运行结果:

 

2,简易例子

详情参考:http://www.quartz-scheduler.org/documentation/quartz-2.1.x/tutorials/tutorial-lesson-01.html

目标:每五秒在控制台上打印语句

第一步:编写job任务,实现了job接口的任务类

HelloJob.java

package cn.simple.quartz.sample;

 

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

 

public class HelloJob implements Job{

      

       @Override

       public void execute(JobExecutionContext arg0)throws JobExecutionException {

              System.out.println("我来证明任务在执行...");

       }

 

}

第二步:编写任务执行类

QuartzSampleTest.

package cn.simple.quartz.sample;

 

import org.quartz.JobBuilder;

import org.quartz.JobDetail;

import org.quartz.Scheduler;

import org.quartz.SchedulerException;

import org.quartz.SchedulerFactory;

import org.quartz.SimpleScheduleBuilder;

import org.quartz.Trigger;

import org.quartz.TriggerBuilder;

import org.quartz.impl.StdSchedulerFactory;

 

public class QuartzSampleTest {

       public static void main(String[] args) {

              //拿到调度工厂

              SchedulerFactory schedulerFactory = new StdSchedulerFactory();

              //拿到scheduler

              try {

                     Scheduler scheduler = schedulerFactory.getScheduler();

                     //开启调度

                     scheduler.start();

                     //包装job

                     JobDetail job = JobBuilder.newJob(HelloJob.class)

                                   //用来分组命名

                                   .withIdentity("job1", "group1")

                                   //创建

                                   .build();

                     //创建触发,定义何时,如何运行

                     Trigger trigger = TriggerBuilder.newTrigger()

                                   .withIdentity("trigger1", "group1")

                                   .startNow()

                                   .withSchedule(

                                                 SimpleScheduleBuilder.simpleSchedule()

                                                 .repeatForever()

                                                 .withIntervalInSeconds(5)

                                                 )

                                   .build();

                     //添加到scheduler

                     scheduler.scheduleJob(job, trigger);

              } catch (SchedulerException e) {

                     e.printStackTrace();

              }

       }

}

 

运行结果

 

3,同spring整合,并使用计划任务CronTrigger

查阅spring-framework-reference.pdfspring整合文档中的Using the Quartz Scheduler

第一步:导入依赖

      <!-- spring context -->

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-context</artifactId>

         <version>4.2.9.RELEASE</version>

      </dependency>

      <!-- spring context support -->

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-context-support</artifactId>

         <version>4.2.9.RELEASE</version>

      </dependency>

      <!-- spring web -->

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-web</artifactId>

         <version>4.2.9.RELEASE</version>

      </dependency>

       <!-- springtx -->

      <dependency>

         <groupId>org.springframework</groupId>

         <artifactId>spring-tx</artifactId>

         <version>4.2.9.RELEASE</version>

      </dependency>

      <!-- quartz核心 -->

      <dependency>

         <groupId>org.quartz-scheduler</groupId>

         <artifactId>quartz</artifactId>

         <version>2.2.3</version>

      </dependency>

      <dependency>

         <groupId>org.quartz-scheduler</groupId>

         <artifactId>quartz-jobs</artifactId>

         <version>2.2.3</version>

      </dependency>

      <!-- slf4j log4j -->

      <dependency>

         <groupId>org.slf4j</groupId>

         <artifactId>slf4j-log4j12</artifactId>

         <version>1.7.7</version>

      </dependency>

 

 

第二步:配置web.xml,设置监听器

<?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>storemanager</display-name>

  <welcome-file-list>

    <welcome-file>index.jsp</welcome-file>

  </welcome-file-list>

    <!-- 整合spring容器 -->

  <listener>

      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

  </listener>

  <!-- spring容器位置 -->

       <context-param>

              <param-name>contextConfigLocation</param-name>

              <param-value>classpath:applicationContext.xml</param-value>

       </context-param> 

 

</web-app>

 

创建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.xsd">

       <!-- 配置扫描 -->

       <context:component-scan base-package="cn.simple.quartz.service"/>

       <!-- 创建包装job -->

       <bean id="myJobDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">

              <property name="jobClass" value="cn.simple.quartz.job.MyJob"></property>

       </bean>

       <!-- 配置crontrigger -->

       <bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">

              <property name="jobDetail" ref="myJobDetail"/>

              <!-- run every morning at 6 AM -->

              <property name="cronExpression" value="0/5 * * * * ?"/>

       </bean>

       <!-- 配置调度器 -->

       <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">

              <property name="triggers">

                     <list>

                            <ref bean="cronTrigger"/>

                     </list>

              </property>

       </bean>

</beans>

Tomcat:run调试:

结果如下