Quartz动态控制定时任务的开启与关闭以及动态配置时间规则
为了能够实现对定时任务的动态控制，我将定时任务做了一个实体类，并将相关信息映射到了数据库中
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package com.acca.entity;/** * * 任务实体 * * * @author zhouhua, 2013-1-16 */public class SchedulingJob { public static final int JS_ENABLED = 0; // 任务启用状态 public static final int JS_DISABLED = 1; // 任务禁用状态 public static final int JS_DELETE = 2; // 任务已删除状态 private String jobId; // 任务的Id，一般为所定义Bean的ID private String jobName; // 任务的描述 private String jobGroup; // 任务所属组的名称 private int jobStatus; // 任务的状态，0：启用；1：禁用；2：已删除 private String cronExpression; // 定时任务运行时间表达式 private String memos; // 任务描述 /** * @return the jobId */ public String getJobId() { return jobId; } /** * @param jobId the jobId to set */ public void setJobId(String jobId) { this.jobId = jobId; } /** * @return the jobName */ public String getJobName() { return jobName; } /** * @param jobName the jobName to set */ public void setJobName(String jobName) { this.jobName = jobName; } /** * @return the jobGroup */ public String getJobGroup() { return jobGroup; } /** * @param jobGroup the jobGroup to set */ public void setJobGroup(String jobGroup) { this.jobGroup = jobGroup; } /** * @return the jobStatus */ public int getJobStatus() { return jobStatus; } /** * @param jobStatus the jobStatus to set */ public void setJobStatus(int jobStatus) { this.jobStatus = jobStatus; } /** * @return the cronExpression */ public String getCronExpression() { return cronExpression; } /** * @param cronExpression the cronExpression to set */ public void setCronExpression(String cronExpression) { this.cronExpression = cronExpression; } /** * @return the memos */ public String getMemos() { return memos; } /** * @param memos the memos to set */ public void setMemos(String memos) { this.memos = memos; } public String getTriggerName() { return this.getJobId() + "Trigger"; }}?
<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping ><class name="com.acca.entity.SchedulingJob" table="t_job"> <id name="jobId"><generator name="code"> /** * 启动定时任务 * * @param context * @param schedulingJob */ protected void enabled(SchedulingJob schedulingJob) { try { CronTrigger trigger = (CronTrigger) this.scheduler.getTrigger( schedulingJob.getTriggerName(), schedulingJob.getJobGroup()); if (null == trigger) { // Trigger不存在，那么创建一个 JobDetail jobDetail = new JobDetail(schedulingJob.getJobId(), schedulingJob.getJobGroup(), QuartzJobBean.class); jobDetail.getJobDataMap().put("targetObjectId", schedulingJob.getJobId()); trigger = new CronTrigger(schedulingJob.getTriggerName(), schedulingJob.getJobGroup(), schedulingJob.getCronExpression()); this.scheduler.scheduleJob(jobDetail, trigger); } else { // Trigger已存在，那么更新相应的定时设置 trigger.setCronExpression(schedulingJob.getCronExpression()); this.scheduler.rescheduleJob(trigger.getName(), trigger.getGroup(), trigger); } } catch (Exception e) { e.printStackTrace(); // TODO } }这个类我放到了service层?
/** * 禁用指定的定时任务 * * @param context * @param schedulingJob */ protected void disabled(SchedulingJob schedulingJob) { try { Trigger trigger = this.scheduler.getTrigger(schedulingJob.getTriggerName(), schedulingJob.getJobGroup()); if (null != trigger) { this.scheduler.deleteJob(schedulingJob.getJobId(), schedulingJob.getJobGroup()); } } catch (SchedulerException e) { e.printStackTrace(); // TODO } }?
/** * * * @version sas-web v1.0 * @author zhouhua, 2013-1-16 */public interface MyJob { public void execute();}?
public class QuartzJobBean implements Job { /** * @param arg0 * @throws JobExecutionException * @see org.quartz.Job#execute(org.quartz.JobExecutionContext) */ @Override public void execute(JobExecutionContext context) throws JobExecutionException { String targetBeanId = (String) context.getMergedJobDataMap().get("targetObjectId"); if (SpringUtils.isNullString(targetBeanId)) return; Object targetBean = SpringUtils.getBean(targetBeanId); if (null == targetBean) return; // 判断是否是实现了MyJob接口 if (!(targetBean instanceof MyJob)) return; // 执行相应的任务 ((MyJob) targetBean).execute(); }}?
package com.acca.util;import org.springframework.beans.BeansException;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;/** * * * * @author zhouhua, 2013-1-16 */public class SpringUtils implements ApplicationContextAware { private static ApplicationContext applicationContext; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { this.applicationContext = applicationContext; } public static Object getBean(String name) throws BeansException { return applicationContext.getBean(name); } /** * 判断字符串是否为空 * @param str * @return */ public static boolean isNullString(String str){ if("".equals(str)&&str==null){ return true; }else{ return false; } }}?
public class QuartzJob implements MyJob { public void work() { System.out.println("Quartz的任务调度！！！"+new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date())); } /** * * @see com.acca.task.MyJob#execute() */ @Override public void execute() { work(); }}?
public class QuartzJob01 implements MyJob { public void work() { System.out.println("Quartz01的任务调度！！！"+new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date())); } /** * * @see com.acca.task.MyJob#execute() */ @Override public void execute() { work(); }}?
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"><bean id="scheduler"/><bean id="springUtils" name="code">public class SystemIni implements ServletContextListener { private JobTaskService jobTaskService; /** * @param arg0 * @see javax.servlet.ServletContextListener#contextDestroyed(javax.servlet.ServletContextEvent) */ @Override public void contextDestroyed(ServletContextEvent arg0) { // TODO Auto-generated method stub } /** * 项目启动时加载所有已启动的定时任务 * * @param arg0 * @see javax.servlet.ServletContextListener#contextInitialized(javax.servlet.ServletContextEvent) */ @Override public void contextInitialized(ServletContextEvent servletContextEvent) { System.out.println("load...."); ServletContext context=servletContextEvent.getServletContext(); ApplicationContext applicationContext=WebApplicationContextUtils.getWebApplicationContext(context); jobTaskService=(JobTaskService) applicationContext.getBean("jobTaskService"); jobTaskService.IniLoadClass(); } }?
我自己写了一个demo，如果有需要的朋友可以给我邮箱，我会及时给你发过去，高手勿喷，这个demo还有一些需要改进的地方，如果高手有例子的话，还望赐教啊！！！互相交流，互相进步！！，谢谢
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1 楼 chenxw138 前天 呵呵，正需要，谢谢了!