导入jar包，其他项目依赖的jar包自行导入
<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>
1代码实现：
QuartzArt类
public class QuartzArt implements Job {
@Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
System.out.println(new Date() + ": job 1 doing something...");
}
}
QuartzManager类（两种方法搜需要这个类进行管理）
public class QuartzManager {
private Scheduler scheduler;
/**
* @Description: 添加一个定时任务
*
* @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 cron 时间设置，参考quartz说明文档
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public void addJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName, Class jobClass, String cron) {
try {
// 任务名，任务组，任务执行类
JobDetail jobDetail= JobBuilder.newJob(jobClass).withIdentity(jobName, jobGroupName).build();
// 触发器
TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();
// 触发器名,触发器组
triggerBuilder.withIdentity(triggerName, triggerGroupName);
triggerBuilder.startNow();
// 触发器时间设定
triggerBuilder.withSchedule(CronScheduleBuilder.cronSchedule(cron));
// 创建Trigger对象
CronTrigger trigger = (CronTrigger) triggerBuilder.build();
// 调度容器设置JobDetail和Trigger
scheduler.scheduleJob(jobDetail, trigger);
// 启动
if (!scheduler.isShutdown()) {
scheduler.start();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 修改一个任务的触发时间
*
* @param jobName
* @param jobGroupName
* @param triggerName 触发器名
* @param triggerGroupName 触发器组名
* @param cron 时间设置，参考quartz说明文档
*/
public void modifyJobTime(String jobName,
String jobGroupName, String triggerName, String triggerGroupName, String cron) {
try {
TriggerKey triggerKey = TriggerKey.triggerKey(triggerName, triggerGroupName);
CronTrigger trigger = (CronTrigger) scheduler.getTrigger(triggerKey);
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(cron)) {
/** 方式一 ：调用 rescheduleJob 开始 */
// 触发器
TriggerBuilder<Trigger> triggerBuilder = TriggerBuilder.newTrigger();
// 触发器名,触发器组
triggerBuilder.withIdentity(triggerName, triggerGroupName);
triggerBuilder.startNow();
// 触发器时间设定
triggerBuilder.withSchedule(CronScheduleBuilder.cronSchedule(cron));
// 创建Trigger对象
trigger = (CronTrigger) triggerBuilder.build();
// 方式一 ：修改一个任务的触发时间
scheduler.rescheduleJob(triggerKey, trigger);
/** 方式一 ：调用 rescheduleJob 结束 */
/** 方式二：先删除，然后在创建一个新的Job */
//JobDetail jobDetail = scheduler.getJobDetail(JobKey.jobKey(jobName, jobGroupName));
//Class<? extends Job> jobClass = jobDetail.getJobClass();
//removeJob(jobName, jobGroupName, triggerName, triggerGroupName);
//addJob(jobName, jobGroupName, triggerName, triggerGroupName, jobClass, cron);
/** 方式二 ：先删除，然后在创建一个新的Job */
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description: 移除一个任务
*
* @param jobName
* @param jobGroupName
* @param triggerName
* @param triggerGroupName
*/
public void removeJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName) {
try {
TriggerKey triggerKey = TriggerKey.triggerKey(triggerName, triggerGroupName);
scheduler.pauseTrigger(triggerKey);// 停止触发器
scheduler.unscheduleJob(triggerKey);// 移除触发器
scheduler.deleteJob(JobKey.jobKey(jobName, jobGroupName));// 删除任务
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description:启动所有定时任务
*/
public void startJobs() {
try {
scheduler.start();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* @Description:关闭所有定时任务
*/
public void shutdownJobs() {
try {
if (!scheduler.isShutdown()) {
scheduler.shutdown();
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public Scheduler getScheduler() {
return scheduler;
}
public void setScheduler(Scheduler scheduler) {
this.scheduler = scheduler;
}
}
测试类：Test.java
public static void main(String[] args) throws BeansException {
QuartzManager quartzManager = (QuartzManager) ctx.getBean("quartzManager");
try {
System.out.println("【系统启动】开始(每1秒输出一次 job2)...");
quartzManager.addJob("test", "test", "test", "test", MyJob.class, "0/1 * * * * ?");
Thread.sleep(5000);
System.out.println("【修改job1时间】开始(每2秒输出一次)...");
quartzManager.modifyJobTime("test", "test", "test", "test", "0/2 * * * * ?");
Thread.sleep(10000);
System.out.println("【移除job1定时】开始...");
quartzManager.removeJob("test", "test", "test", "test");
// 关掉任务调度容器
// quartzManager.shutdownJobs();
} catch (Exception e) {
e.printStackTrace();
}
}
2配置文件实现：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
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-3.0.xsd"
default-lazy-init="true">
<!-- 这个类用来做需要完成的业务-->
<bean id="QuartzJob2" class="com.haiziyouke.service.utils.QuartzJob2"></bean>
<!-- 定时任务 -->
<!-- 定义调用对象和调用对象的方法，这个配置和普通的一样的,id是JobDetail的名字 -->
<bean id="jobtask" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<!-- 调用的类 -->
<property name="targetObject" ref="QuartzJob2" />
<!-- 调用类中的方法 -->
<property name="targetMethod" value="doSomething" />
<!-- 是否并发 -->
<property name ="concurrent" value ="false" />
</bean>
<!-- 定义触发时间 ，这边就不同了，这里必须将时间设置成无限长，因为我们要去读取数据库的时间来做为定时器的触发时间-->
<bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean ">
<property name="jobDetail" ref="jobtask" />
<!-- cron表达式 -->
<property name="cronExpression" value="0/5 * * * * ?" />
<!--<property name="cronExpression" value="0 0 6 * * ?" />-->
</bean>
<!-- 总管理类 如果将lazy-init='false'那么容器启动就会执行调度程序 -->
<bean id="startQuertz" lazy-init="true" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>
<ref bean="cronTrigger" />
</list>
</property>
</bean>
<!--这个类是用来设置触发时间的， startJobs方法启动调度容器，然后按照上面触发器每隔1s执行所配置的myJob2.doSomething()方法 -->
<bean id="quartzManager" class="com.haiziyouke.service.utils.QuartzManager" lazy-init="false" init-method="startJobs" >
<!--这个对象一定要注入，这样类才能进行管理，还有在类型要用get set方法，不然会报错。-->
<property name="scheduler" ref="startQuertz" />
</bean>
</beans>
业务类：QuartzJob2 (这个类可以是你项目中的任何一个类，只要在XML配置下就好)
public class QuartzJob2 {
public void doSomething(){
System.out.println(new Date() + ": job 2 doing something...");
}
}
测试类：Test2.java
public class QuartzTest {
public static void main(String[] args) throws BeansException {
ApplicationContext ctx = new ClassPathXmlApplicationContext("quartz-config.xml");
//QuartzManager quartzManager = (QuartzManager) ctx.getBean("quartzManager");
try {
System.out.println(new Date() + ": job 1 doing something...");
} catch (Exception e) {
e.printStackTrace();
}
}
}
