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Spring整合Quartz实现动态定时器的示例代码

2017-01-19 10:29 921 查看

一、版本说明

spring3.1以下的版本必须使用quartz1.x系列,3.1以上的版本才支持quartz 2.x,不然会出错。

原因:spring对于quartz的支持实现,org.springframework.scheduling.quartz.CronTriggerBean继承了org.quartz.CronTrigger,在quartz1.x系列中org.quartz.CronTrigger是个类,而在quartz2.x系列中org.quartz.CronTrigger变成了接口,从而造成无法用spring的方式配置quartz的触发器(trigger)

此示例所选版本:spring版本号3.0.7.RELEASE,quartz版本1.8.6

二、添加jar包

我的是maven工程,pom.xml相关配置如下:

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>3.0.7.RELEASE</spring.version>
<quartz.version>1.8.6</quartz.version>
</properties>
    <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency><!--3.0.7没这个包 -->
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<type>jar</type>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>${quartz.version}</version>
</dependency>

三、整合实现

1、spring配置

spring只需要添加quartz调度工厂bean就可以了

复制代码 代码如下:
<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean" />

 2、定时器工作类实现

定义定时器作业类,该类继承自job类

package com.ld.nhmz.quartz;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
/**
* quartz示例定时器类
*
* @author Administrator
*
*/
public class QuartzJobExample implements Job {
@Override
public void execute(JobExecutionContext arg0) throws JobExecutionException {
System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "★★★★★★★★★★★");
}
}

定义定时器管理类

package com.ld.nhmz.quartz;
import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
/**
* Quartz调度管理器
*
* @author Administrator
*
*/
public class QuartzManager {
private static String JOB_GROUP_NAME = "EXTJWEB_JOBGROUP_NAME";
private static String TRIGGER_GROUP_NAME = "EXTJWEB_TRIGGERGROUP_NAME";
/**
* @Description: 添加一个定时任务,使用默认的任务组名,触发器名,触发器组名
*
* @param sched
*      调度器
*
* @param jobName
*      任务名
* @param cls
*      任务
* @param time
*      时间设置,参考quartz说明文档
*
* @Title: QuartzManager.java
*/
public static void addJob(Scheduler sched, String jobName, @SuppressWarnings("rawtypes") Class cls, String time) {
try {
JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, cls);// 任务名,任务组,任务执行类
// 触发器
CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME);// 触发器名,触发器组
trigger.setCronExpression(time);// 触发器时间设定
sched.scheduleJob(jobDetail, trigger);
// 启动
if (!sched.isShutdown()) {
sched.start();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 添加一个定时任务
*
* @param sched
*      调度器
*
* @param jobName
*      任务名
* @param jobGroupName
*      任务组名
* @param triggerName
*      触发器名
* @param triggerGroupName
*      触发器组名
* @param jobClass
*      任务
* @param time
*      时间设置,参考quartz说明文档
*
* @Title: QuartzManager.java
*/
public static void addJob(Scheduler sched, String jobName, String jobGroupName, String triggerName, String triggerGroupName, @SuppressWarnings("rawtypes") Class jobClass, String time) {
try {
JobDetail jobDetail = new JobDetail(jobName, jobGroupName, jobClass);// 任务名,任务组,任务执行类
// 触发器
CronTrigger trigger = new CronTrigger(triggerName, triggerGroupName);// 触发器名,触发器组
trigger.setCronExpression(time);// 触发器时间设定
sched.scheduleJob(jobDetail, trigger);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 修改一个任务的触发时间(使用默认的任务组名,触发器名,触发器组名)
*
* @param sched
*      调度器
* @param jobName
* @param time
*
* @Title: QuartzManager.java
*/
@SuppressWarnings("rawtypes")
public static void modifyJobTime(Scheduler sched, String jobName, String time) {
try {
CronTrigger trigger = (CronTrigger) sched.getTrigger(jobName, TRIGGER_GROUP_NAME);
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(time)) {
JobDetail jobDetail = sched.getJobDetail(jobName, JOB_GROUP_NAME);
Class objJobClass = jobDetail.getJobClass();
removeJob(sched, jobName);
addJob(sched, jobName, objJobClass, time);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 修改一个任务的触发时间
*
* @param sched
*      调度器 *
* @param sched
*      调度器
* @param triggerName
* @param triggerGroupName
* @param time
*
* @Title: QuartzManager.java
*/
public static void modifyJobTime(Scheduler sched, String triggerName, String triggerGroupName, String time) {
try {
CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerName, triggerGroupName);
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(time)) {
CronTrigger ct = (CronTrigger) trigger;
// 修改时间
ct.setCronExpression(time);
// 重启触发器
sched.resumeTrigger(triggerName, triggerGroupName);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 移除一个任务(使用默认的任务组名,触发器名,触发器组名)
*
* @param sched
*      调度器
* @param jobName
*
* @Title: QuartzManager.java
*/
public static void removeJob(Scheduler sched, String jobName) {
try {
sched.pauseTrigger(jobName, TRIGGER_GROUP_NAME);// 停止触发器
sched.unscheduleJob(jobName, TRIGGER_GROUP_NAME);// 移除触发器
sched.deleteJob(jobName, JOB_GROUP_NAME);// 删除任务
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 移除一个任务
*
* @param sched
*      调度器
* @param jobName
* @param jobGroupName
* @param triggerName
* @param triggerGroupName
*
* @Title: QuartzManager.java
*/
public static void removeJob(Scheduler sched, String jobName, String jobGroupName, String triggerName, String triggerGroupName) {
try {
sched.pauseTrigger(triggerName, triggerGroupName);// 停止触发器
sched.unscheduleJob(triggerName, triggerGroupName);// 移除触发器
sched.deleteJob(jobName, jobGroupName);// 删除任务
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description:启动所有定时任务
*
* @param sched
*      调度器
*
* @Title: QuartzManager.java
*/
public static void startJobs(Scheduler sched) {
try {
sched.start();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description:关闭所有定时任务
*
*
* @param sched
*      调度器
*
*
* @Title: QuartzManager.java
*/
public static void shutdownJobs(Scheduler sched) {
try {
if (!sched.isShutdown()) {
sched.shutdown();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}

 测试代码,这里SchedulerFactory没有使用spring中配置的bean,而是new出来的,做测试用

package com.ld.nhmz.quartz.test;
import org.junit.Test;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.impl.StdSchedulerFactory;
import com.ld.nhmz.quartz.QuartzJobExample;
import com.ld.nhmz.quartz.QuartzManager;
/**
* @Description: 测试类
*
* @ClassName: QuartzTest.java
*/
public class QuartzTest {
@Test
public void quartz() {
try {
SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
Scheduler sche = gSchedulerFactory.getScheduler();
String job_name = "动态任务调度";
System.out.println("【系统启动】开始(每1秒输出一次)...");
QuartzManager.addJob(sche, job_name, QuartzJobExample.class, "0/1 * * * * ?");
Thread.sleep(3000);
System.out.println("【修改时间】开始(每2秒输出一次)...");
QuartzManager.modifyJobTime(sche, job_name, "10/2 * * * * ?");
Thread.sleep(4000);
System.out.println("【移除定时】开始...");
QuartzManager.removeJob(sche, job_name);
System.out.println("【移除定时】成功");
System.out.println("【再次添加定时任务】开始(每10秒输出一次)...");
QuartzManager.addJob(sche, job_name, QuartzJobExample.class, "*/10 * * * * ?");
Thread.sleep(30000);
System.out.println("【移除定时】开始...");
QuartzManager.removeJob(sche, job_name);
System.out.println("【移除定时】成功");
} catch (Exception e) {
e.printStackTrace();
}
}
}

显示结果:

 

spring Control层代码中实现定时器管理

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

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标签:  quartz 动态定时器