quartz与spring整合实现动态任务增删改查

本文最初是为了实现定时推送功能，为推送设置一个时间，到时间后推送到云巴服务器。

所以这里会用到quartz定时任务调度，而且我新增一个定时推送，同时就要新增一个定时任务。所以这里也涉及到了任务的增删改查。

以下是代码实现：

1、定时任务管理类，实现对任务的CURD

package com.qbyy.util.yunba.task;import java.util.Date;import org.quartz.JobDetail;import org.quartz.Scheduler;import org.quartz.SimpleTrigger;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.scheduling.quartz.SchedulerFactoryBean;import org.springframework.stereotype.Component;/** * 定时任务管理类 *  * @author FJB * 2015年6月1日 下午3:04:10 */@SuppressWarnings("rawtypes")@Component("pushQuartzManager")public class PushQuartzManager {@Autowired<span style="white-space:pre"></span>private SchedulerFactoryBean gSchedulerFactory;      private String JOB_GROUP_NAME = "EXTJWEB_JOBGROUP_NAME";  //任务组名    private String TRIGGER_GROUP_NAME = "EXTJWEB_TRIGGERGROUP_NAME"; //触发器名        @Autowired    public void setgSchedulerFactory(SchedulerFactoryBean gSchedulerFactory) {this.gSchedulerFactory = gSchedulerFactory;}/**      * @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 jobName  任务名      * @param cls  任务     * @param time  时间设置【我这里用的是java.util.Date，这样可以直接查询出数据库的日期，并设置为定时任务的开始时间】     */  public void addJob(String jobName, Class cls, Date startTime) {          try {          System.out.println("新增定时任务"+jobName);        //Scheduler sched = schedulerFactoryBean.getScheduler();            Scheduler sched = gSchedulerFactory.getScheduler();              JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, cls);// 任务名，任务组，任务执行类              //jobDetail.getJobDataMap().put("targetObjectId", jobName);            // 触发器              SimpleTrigger simpleTrigger =  new SimpleTrigger(jobName, TRIGGER_GROUP_NAME);            simpleTrigger.setStartTime(startTime);            simpleTrigger.setRepeatCount(0);<span style="white-space:pre"></span>//重复次数为0，不重复            sched.scheduleJob(jobDetail, simpleTrigger);            // 启动              if (!sched.isShutdown()) {                  sched.start();              }          } catch (Exception e) {              throw new RuntimeException(e);          }      }         /**     * 修改定时任务     * @param jobName 任务名     * @param time 时间     */    public void modifyJobTime(String jobName,  Date time) {          try {          //Scheduler sched = schedulerFactoryBean.getScheduler();            Scheduler sched = gSchedulerFactory.getScheduler();              SimpleTrigger trigger = (SimpleTrigger) sched.getTrigger(jobName,TRIGGER_GROUP_NAME);              if (trigger == null) {                  return;              }              Date oldTime = trigger.getStartTime();            if (!oldTime.equals(time)) {              System.out.println("时间不相等，修改时间");                JobDetail jobDetail = sched.getJobDetail(jobName,JOB_GROUP_NAME);                  Class objJobClass = jobDetail.getJobClass();                  removeJob(jobName);                  addJob(jobName, objJobClass, time);              }          } catch (Exception e) {              throw new RuntimeException(e);          }      }        /**     * 移除一个定时任务     * @param jobName     */    public void removeJob(String jobName) {          try {              Scheduler sched = gSchedulerFactory.getScheduler();              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);          }      } }

2、任务处理类，定时任务所处理的业务

package com.qbyy.util.yunba.task;import org.apache.log4j.Logger;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;import org.quartz.SchedulerContext;import org.springframework.scheduling.quartz.QuartzJobBean;import com.wunding.service.system.PushSendServiceI;/** * 定时任务执行类 *  * @author FJB * 2015年6月1日 上午11:29:31 */public class PushQuartzJob extends QuartzJobBean  {Logger logger = Logger.getLogger(PushQuartzJob.class);//【关键】推送的业务类，不能直接通过spring注解注入，必须在xml文件中配置private PushSendServiceI pushSendService;@Overrideprotected void executeInternal(JobExecutionContext context) throws JobExecutionException {String id=""; try {                 //获取JobExecutionContext中的service对象                SchedulerContext skedCtx = context.getScheduler().getContext();                 //获取SchedulerContext中的service                //这里的service就是通过配置文件 配置的                pushSendService = (PushSendServiceI)skedCtx.get("pushSendService");                 id = context.getJobDetail().getName();pushSendService.sendPush(id);System.out.println("ID= ["+id+"] 的推送，定时发送成功");logger.info("ID= ["+id+"] 的推送，定时发送成功");} catch (Exception e) {logger.info("ID= ["+id+"] 的推送，定时发送失败");e.printStackTrace();}    }}

3、配置quartz，这个配置文件要包含到spring的总配置文件中

<?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-3.2.xsd"><!-- quartz的调度工厂 --><bean id="schedulerFactory" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"><property name="schedulerContextAsMap">                  <map>                      <!-- 【关键】spring 管理的service需要放到这里，才能够注入成功<span style="font-family: Arial, Helvetica, sans-serif;">PushQuartzJob 要使用到的业务类要在这里注入才能使用</span> -->                      <description>schedulerContextAsMap</description>                      <entry key="pushSendService" value-ref="pushSendServiceImpl" />                  </map>              </property>   </bean></beans>

4、业务逻辑类

@Service@Transactionalpublic class PushManageServiceImpl extends BaseService implements PushManageServiceI {@Autowiredprivate PushManageMapper pushManageMapper;@Autowiredprivate PushQuartzManager pushQuartzManager;@Overridepublic void savePush(PushManage pushManage) throws Exception {String pushId = newId();pushManage.setId(pushId);//新增定时任务，这里直接将推送消息对象的ID作为jobName，这样做的好处是，在任务执行时可以直接根据jobName到数据库中查询推送信息pushQuartzManager.addJob(pushId, PushQuartzJob.class, pushManage.getTaskpushtime());pushManageMapper.save(pushManage);}}

5、每2步中，任务执行所调用的方法所在类，任务推送类

package com.wunding.service.system.impl;import java.util.Date;import org.json.JSONException;import org.json.JSONObject;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;import com.wunding.domain.system.PushManage;import com.wunding.persistence.system.PushManageMapper;import com.wunding.service.system.PushSendServiceI;import com.wunding.util.yunba.YunBaPushUtil;/** * 推送定时发送管理类 *  * @author FJB * 2015年6月2日 下午3:10:12 */@Service@Transactionalpublic class PushSendServiceImpl implements PushSendServiceI {@Autowiredprivate PushManageMapper pushManageMapper;@Autowiredprivate YunBaPushUtil yunBaPushUtil;@Overridepublic void sendPush(String id) throws Exception {PushManage pushManage = new PushManage();pushManage.setId(id);Date nowDate = new Date();pushManage.setPushtime(nowDate);pushManage.setIsavailable(1);pushManageMapper.update(pushManage);PushManage push = pushManageMapper.get(id);yunBaPublish(push);}/** * 发推送到服务器 * @param push */private void yunBaPublish(PushManage push){//调研发送推送的方法/** * ----要推送的内容---- * 1.推送内容[msg] * 2.内容id [contentId] * 3.内容类型，资讯、考试等 [contentType] * 4.推送目标人员或部门 [topic or alias] * 5.按别名或频道推送 [pushType] */try {String pushStr = "{'topic': 'topic1', 'msg': '"+push.getMessages()+"', 'qos': 1}";JSONObject json = new JSONObject(pushStr);yunBaPushUtil.getSocket().emit("publish", json);} catch (JSONException e) {e.printStackTrace();}}}

要注意的地方：第2步中注入的service类与第4步中的业务逻辑类不能是同一个类，这也是我单独提取出第5步中的类的原因，因为如果是同一个类，会存在相互注入，也就是循环注入，会报类似如下的错误：

This means that said other beans do not use the final version of the bean. This is often the 
result of S type matching - consider using 'getBeanNamesOfType' with the 'allowEagerInit' flag turned off, 
for example.

6、特别声明：在编码过程中参考网上多个地方的代码，在这里我也提供参考的链接地址：

（1）http://blog.csdn.net/whaosy/article/details/6298686 这里参考了在Job中注入service的方法

（2）http://blog.csdn.net/pengpegv5yaya/article/details/37595889 这里参考了对定时任务的CURD

（3）http://www.ibm.com/developerworks/cn/java/j-quartz/#ibm-pcon 这里参考了SimpleTrigger