纯净版quartz定时任务【maven】

Quartz是一个完全由Java编写的开源作业调度框架，为在Java应用程序中进行作业调度提供了简单却强大的机制。Quartz允许开发人员根据时间间隔来调度作业。它实现了作业和触发器的多对多的关系，还能把多个作业与不同的触发器关联。

简单的介绍一下下面的Quartz项目包括如何调度其他的类。

搭建定时任务服务

首先新建一个maven项目

然后配置pom文件，我们需要引如下jar包依赖

<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>javax.transaction</groupId>

<artifactId>jta</artifactId>

<version>1.1</version>

</dependency>

 

然后pom文件中配置jdk及tomcat插件

<plugins>

<!-- Tomcat7 -->

<plugin>

<groupId>org.apache.tomcat.maven</groupId>

<artifactId>tomcat7-maven-plugin</artifactId>

<version>2.2</version>

<configuration>

<path>/${project.artifactId}</path>

<port>8083</port>

<uriEncoding>UTF-8</uriEncoding>

<url>http://localhost:8083/</url>

<server>tomcat7</server>

</configuration>

</plugin>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<configuration>

<source>1.8</source>

<target>1.8</target>

</configuration>

</plugin>

</plugins>

 

然后我们需要新建一个properties和xml文件

大体服务结构如下：

properties内容如下：

#============================================================================

# Configure Main Scheduler Properties

#============================================================================

org.quartz.scheduler.instanceName = QuartzScheduler

org.quartz.scheduler.instanceId = AUTO

#============================================================================

# Configure ThreadPool

#============================================================================

org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool

org.quartz.threadPool.threadCount = 5

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.plugin.jobInitializer.class = org.quartz.plugins.xml.XMLSchedulingDataProcessorPlugin

org.quartz.plugin.jobInitializer.fileNames = quartz_data.xml

org.quartz.plugin.jobInitializer.failOnFileNotFound = true

org.quartz.plugin.jobInitializer.scanInterval = 10

org.quartz.plugin.jobInitializer.wrapInUserTransaction =false

 

#\u9ED8\u8BA4\u4F1A\u8054\u7F51\u68C0\u67E5\u662F\u5426\u6709\u66F4\u65B0\uFF0C\u8FD8\u662Fskip\u4E3A\u597D

org.quartz.scheduler.skipUpdateCheck =true

 

然后配置quartz_dataxml

<?xml version="1.0" encoding="UTF-8"?>

<job-scheduling-data

xmlns="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">

<schedule>

<job>

<name>DemoJob</name>

<group>JobGroup</group>

<job-class>job.QuartzDemoJob</job-class>

</job>

<trigger>

<cron>

<name>DemoTrigger</name>

<group>triggerGroup</group>

<job-name>DemoJob</job-name>

<job-group>JobGroup</job-group>

<cron-expression>0/3 * * * * ?</cron-expression>

</cron>

</trigger>

</schedule>

<schedule>

<job>

<name>TestJob</name>

<group>TestGroup</group>

<job-class>job.QuartzTestJob</job-class>

</job>

<trigger>

<cron>

<name>DemoTrigger</name>

<!-- <group>triggerGroup</group> -->

<job-name>TestJob</job-name>

<job-group>TestGroup</job-group>

<cron-expression>0/5 * * * * ?</cron-expression>

</cron>

</trigger>

</schedule>

</job-scheduling-data>

 

然后创建俩个job类

package job;

 

import java.util.Date;

 

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

 

public class QuartzDemoJob implements Job {

 

@Override

public void execute(JobExecutionContext arg0) throws JobExecutionException {

System.out.println(new Date() + "FXP");

}

}

 

package job;

 

import java.util.Date;

 

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

 

public class QuartzTestJob implements Job {

 

@Override

public void execute(JobExecutionContext arg0) throws JobExecutionException {

System.out.println(new Date() + "HL");

}

}

 

最后再在web.xml配置如下内容即可：

<servlet>

<servlet-name>QuartzInitializer</servlet-name>

<servlet-class>

org.quartz.ee.servlet.QuartzInitializerServlet

</servlet-class>

<init-param>

<param-name>config-file</param-name>

<param-value>quartz.properties</param-value>

</init-param>

<init-param>

<param-name>shutdown-on-unload</param-name>

<param-value>true</param-value>

</init-param>

<load-on-startup>2</load-on-startup>

</servlet>

 

然后启动就可以看到效果了，FXP每三秒输出一下，而HL每五秒输出一下。【这个秒数在quartz_data.xml中配置】