Spring的org.springframework.scheduling.quartz.JobDetailBean提供Job可序列化的实现(具体实现可查看源码)
此时.我们原来的job就可以继承QuartzJobBean,便会自动序列化到数据库,quartz的具体配置文件如下
<?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:jee="http://www.springframework.org/schema/jee"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
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/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd"
default-lazy-init="true">
<description>quartz配置</description>
<!-- quartz使用的数据源配置 -->
<bean id="quartzDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${quartz.jdbc.driver}" />
<property name="url" value="${quartz.jdbc.url}" />
<property name="username" value="${quartz.jdbc.username}" />
<property name="password" value="${quartz.jdbc.password}" />
</bean>
<!-- 另一个事务管理器, Jdbc单数据源事务 -->
<bean id="quartzTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="quartzDataSource" />
</bean>
<bean name="quartzScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="dataSource" ref="quartzDataSource"/>
<property name="applicationContextSchedulerContextKey" value="applicationContext"/>
<property name="configLocation" value="classpath:quartz.properties"/><!--
这个是必须的，QuartzScheduler 延时启动，应用启动完后 QuartzScheduler 再启动
-->
<property name="startupDelay" value="30"/><!--
这个是可选，QuartzScheduler 启动时更新己存在的Job，这样就不用每次修改targetObject后删除qrtz_job_details表对应记录了
-->
<property name="overwriteExistingJobs" value="true"/>
<property name="jobDetails" >
<list>
<ref bean="serverHealthJobDetail"/>
</list>
</property>
</bean>
<!-- 运行次数记录 -->
<bean id="serverHealthJobDetail" class="org.springframework.scheduling.quartz.JobDetailBean">
<!--requestsRecovery属性为true，则当Quartz服务被中止后，再次启动任务时会尝试恢复执行之前未完成的所有任务-->
<property name="requestsRecovery" value="true"/>
<!-- 标识job是持久的,删除触发器的时候不被删除 -->
<property name="durability" value="true"/>
<property name="jobClass" value="cn.yzzn.hvac.quartz.job.ServerHealthJob"/>
</bean>
</beans>
我们看到<property name="applicationContextSchedulerContextKey" value="applicationContext"/>此标签
Spring会帮我们自动注入applicationContext.并非上一篇文章中,通过Spring的工具手动获取applicationContext.
ServerHealthJob代码如下
public abstract class JobSupport extends QuartzJobBean {
private BuildingManager buildingManager;
private PlcManager plcManager;
private static Logger logger = LoggerFactory.getLogger(JobSupport.class);
private ApplicationContext applicationContext;
/**
* 从SchedulerFactoryBean注入的applicationContext.
*/
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
public <T> T getBean(String beanName, Class<T> clazz) {
return this.applicationContext.getBean(beanName, clazz);
}
@Override
protected void executeInternal(JobExecutionContext context)
throws JobExecutionException {
if (ObjectUtils.isNullOrEmptyString(buildingManager)) {
buildingManager = getBean("buildingManager", BuildingManager.class);
}
if (ObjectUtils.isNullOrEmptyString(plcManager)) {
plcManager = getBean("plcManager", PlcManager.class);
}
List<Building> buildingList = buildingManager.getBuildings();
int size = buildingList.size();
for (int i = 0; i < size; i++) {
Building building = buildingList.get(i);
Set<Plc> plcSet = building.getPlcs();
for (Plc plc : plcSet) {
innerIter(building, plc, i, size);
}
}
}
public abstract void innerIter(Building building, Plc plc,
int index, int size);
}
public class ServerHealthJob extends JobSupport {
@Override
public void innerIter(Building building, Plc plc, int index, int size) {
// TODO Auto-generated method stub
}
}
ServerHealthJob就可以被Spring轻松的序列化到数据库.解决了上篇博文中繁琐的操作.
JobSupport是本人系统业务需求,同学们可自定义实现只要继承QuartzJobBean即刻.
数据库中已存在次jobDetail
TriggerManager也没多大变化
/**
* Quartz Scheduler 管理类
* 不带groupName参数的方法都采用自动填充默认组的形式 Scheduler.DEFAULT_GROUP
* @author PigWing
*
*/
public class SchedulerManagerImpl implements SchedulerManager {
private QuartzDao quartzDao;
private Scheduler scheduler;
private static Logger logger = LoggerFactory.getLogger(UserController.class);
/***
* 增加一个触发器任务,采用默认组形式
*/
public void addTrigger(String triggerName, String jobName,
String cronExpression) throws SchedulerException, ParseException {
addTrigger(triggerName, Scheduler.DEFAULT_GROUP, jobName, Scheduler.DEFAULT_GROUP, cronExpression);
}
/**
*
* 增加一个触发器任务
*/
public void addTrigger(String triggerName, String triggerGroupName,
String jobName, String jobGrourpName, String cronExpression) throws SchedulerException, ParseException {
if(StringUtils.isEmpty(triggerName)) {
throw new RuntimeException("triggerName can not be null");
}
try {
JobDetail jobDetail = scheduler.getJobDetail(jobName, jobGrourpName);
if(jobDetail != null) {
scheduler.addJob(jobDetail, true);
CronTrigger cronTrigger = new CronTrigger(triggerName, triggerGroupName, jobDetail.getName(), jobGrourpName);
cronTrigger.setCronExpression(cronExpression);
scheduler.scheduleJob(cronTrigger);
scheduler.rescheduleJob(cronTrigger.getName(), cronTrigger.getGroup(), cronTrigger);
}else {
logger.error("cant not find jobDetail: " + jobGrourpName);
}
}catch(SchedulerException e) {
logger.error(e.getMessage());
throw e;
}
}
/**
* 返回所有触发器信息
*/
public List<Map<String, Object>> getAllTriggers() {
return quartzDao.getQuartzTriggers();
}
/**
* 停止触发器
*/
public void parseTrigger(String triggerName, String groupName)
throws SchedulerException {
try {
scheduler.pauseTrigger(triggerName, groupName);
}catch(SchedulerException e) {
logger.error(e.getMessage());
throw e;
}
}
/**
* 停止触发器,采用默认组形式
*/
public void parseTrigger(String triggerName) throws SchedulerException {
parseTrigger(triggerName, Scheduler.DEFAULT_GROUP);
}
/**
* 重启触发器
*/
public void resumeTrigger(String triggerName, String groupName)
throws SchedulerException {
try {
scheduler.resumeTrigger(triggerName, groupName);
}catch(SchedulerException e) {
logger.error(e.getMessage());
throw e;
}
}
/**
* 重启触发器,采用默认组形式
*/
public void resumeTrigger(String triggerName) throws SchedulerException {
resumeTrigger(triggerName, Scheduler.DEFAULT_GROUP);
}
/**
* 移除触发器
*/
public boolean removeTrigger(String triggerName, String groupName)
throws SchedulerException {
try {
parseTrigger(triggerName, groupName);
return scheduler.unscheduleJob(triggerName, groupName);
}catch(SchedulerException e) {
logger.error(e.getMessage());
throw e;
}
}
/**
* 移除触发器,采用默认组形式
*/
public boolean removeTrigger(String triggerName) throws SchedulerException {
try {
return removeTrigger(triggerName, Scheduler.DEFAULT_GROUP);
}catch(SchedulerException e) {
logger.error(e.getMessage());
throw e;
}
}
/**
* 返回所有的任务名称
*/
public String[] getJobNames(String groupName) throws SchedulerException {
return scheduler.getJobNames(groupName);
}
public String[] getJobNames() throws SchedulerException {
return scheduler.getJobNames(Scheduler.DEFAULT_GROUP);
}
@Autowired
public void setQuartzDao(QuartzDao quartzDao) {
this.quartzDao = quartzDao;
}
@Autowired
public void setScheduler(Scheduler scheduler) {
this.scheduler = scheduler;
}
}
本文转自：http://www.cnblogs.com/pigwing/archive/2011/07/12/2104002.html
时间： 2024-09-30 07:03:31