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：
UTF-8 3.0.7.RELEASE 1.8.6
org.springframework spring-context${spring.version} commons-logging commons-loggingorg.springframework spring-context-support${spring.version} org.springframework spring-webmvc${spring.version} org.springframework spring-orm${spring.version} jar compile org.springframework spring-test${spring.version} jar test
org.quartz-scheduler quartz${quartz.version}
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:
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;
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;
public class QuartzManager {
private static String JOB_GROUP_NAME = "EXTJWEB_JOBGROUP_NAME";
private static String TRIGGER_GROUP_NAME = "EXTJWEB_TRIGGERGROUP_NAME";
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);
}
}
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);
}
}
@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);
}
}
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);
}
}
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);
}
}
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);
}
}
public static void startJobs(Scheduler sched) {
try {
sched.start();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
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;
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考高分网。
