一 : 首先了解spring定时器所使用到的场景
比如 : 定时统计报表,或者登录账户密码验证失败冻结账户后,每晚12点将账户解锁等等...
使用jar包 : 2.0使用方法不同
<!-- 定时器 -->
<dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>1.8.6</version> </dependency>2. 代码示例
1. 定义被执行的任务类package com.jk.controller;import java.text.SimpleDateFormat;
import java.util.Date;import org.quartz.Job;
import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;// 准备定时调度的任务 工作类 public class TestDing implements Job {@Override
public void execute(JobExecutionContext arg0) throws JobExecutionException { System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(new Date())+"- =-=-=-=-="); }} 2. 通过 工厂启动任务 主函数运行package com.jk.controller;
import java.text.ParseException;
import org.quartz.CronTrigger;
import org.quartz.JobDetail;import org.quartz.Scheduler;import org.quartz.SchedulerException;import org.quartz.SchedulerFactory;import org.quartz.impl.StdSchedulerFactory;public class TestDingshiqi {
public static void main(String[] args) throws
SchedulerException, ParseException { // 实例化 定时器工厂 SchedulerFactory gSchedulerFactory = new StdSchedulerFactory(); // 通过工厂获得任务调度器 Scheduler sche = gSchedulerFactory.getScheduler(); // 设置 定时执行的 任务类 设定 任务名 JobDetail jobDetail = new JobDetail("testJob任 意起名字最好和业务相关", "JOB_GROUP_New1", TestDing.class);// 任务名,任务组,任务执行类 // 获得 触发器 将任务添加到 指定的 触发器中 CronTrigger trigger = new CronTrigger ("testtrigger任意起名字最好和业务相关", "TRIGGER_GROUP_name1");// 触发器名,触发器组 // 设置触发器的时间 trigger.setCronExpression("0/1 * * * * ?");// 触发器时间设定 //将触发器和 任务 放到 调度器中 sche.scheduleJob(jobDetail, trigger); // 启动 if (!sche.isShutdown()) { sche.start(); } }}
3. 封装的定时任务管理工具类package com.jk.controller;
import org.quartz.CronTrigger;
import org.quartz.JobDetail;import org.quartz.Scheduler;/**
* Quartz调度管理器 * * @author Administrator * */public class TestDingManger { 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); } }}spring项目中整合定时器
一 : spring-quartz.xml
注入schedulerFactoryBean工厂
<bean id="schedulerFactoryBean" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
在service层中通过属性注入或者自动注入都可以,这里使用到了自动注入
@Autowired
private SchedulerFactoryBean schedulerFactoryBean;public void test() throws Exception {
// 通过工厂获得任务调度器 Scheduler sche = schedulerFactoryBean.getScheduler(); // 设置 定时执行的 任务类 设定 任务名 JobDetail jobDetail = new JobDetail("testJob任意起名字最好和业务相关", "JOB_GROUP_New1", SpringTask.class);// 任务名,任务组,任务执行类 // 获得 触发器 将任务添加到 指定的 触发器中 CronTrigger trigger = new CronTrigger("testtrigger任意起名字最好和业务相关", "TRIGGER_GROUP_name1");// 触发器名,触发器组 // 设置触发器的时间 trigger.setCronExpression("0/3 * * * * ?");// 触发器时间设定 //将触发器和 任务 放到 调度器中 sche.scheduleJob(jobDetail, trigger); // 启动 if (!sche.isShutdown()) { sche.start(); } }每次都要使用工厂创建比较麻烦可以将创建一个工具类:
package com.jk.util;
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";/**
* @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); } }}