项目实战
或许实现的方式跟之前的代码有点不一样的
1.定时任务的配置信息
@Configuration
public class ScheduleConfigration {
@Autowired
private ScheduleInfoAction scheduleInfoAction;
@Autowired
private ChannelSyncTask ChannelSyncTask;
/**
* 用于5分钟轮训检查cron修改（基本不需要修改）
* @return
*/
@Bean(name = "jobDetail")
public MethodInvokingJobDetailFactoryBean jobDetail(){
MethodInvokingJobDetailFactoryBean methodInvokingJobDetailFactoryBean = new MethodInvokingJobDetailFactoryBean();
methodInvokingJobDetailFactoryBean.setConcurrent(false);
methodInvokingJobDetailFactoryBean.setTargetObject(scheduleInfoAction);
methodInvokingJobDetailFactoryBean.setTargetMethod("reScheduleJob");
return methodInvokingJobDetailFactoryBean;
}
/**
* 用于5分钟轮训检查cron修改（基本不需要修改）
* @return
*/
@Bean(name = "cronTrigger")
public CronTriggerFactoryBean cronTrigger(){
CronTriggerFactoryBean cronTriggerFactoryBean = new CronTriggerFactoryBean();
cronTriggerFactoryBean.setJobDetail(jobDetail().getObject());
// 设置默认刷新cron
cronTriggerFactoryBean.setCronExpression(Properties.getString("refresh.default.cron"));
return cronTriggerFactoryBean;
}
/**
* dycChannel 任务，需要添加新的定时任务，需要重复配置JobDetail,CronTrigger
* @return
*/
@Bean(name = "channelSyncJobCronJobDetail")
public MethodInvokingJobDetailFactoryBean channelSyncJobCronJobDetail(){
MethodInvokingJobDetailFactoryBean methodInvokingJobDetailFactoryBean = new MethodInvokingJobDetailFactoryBean();
methodInvokingJobDetailFactoryBean.setConcurrent(false);
methodInvokingJobDetailFactoryBean.setTargetObject(channelSyncTask);
methodInvokingJobDetailFactoryBean.setTargetMethod("doTask");
return methodInvokingJobDetailFactoryBean;
}
@Bean(name = "channelSyncJobCronTrigger")
public CronTriggerFactoryBean channelSyncJobCronTrigger(){
CronTriggerFactoryBean cronTriggerFactoryBean = new CronTriggerFactoryBean();
cronTriggerFactoryBean.setJobDetail(channelSyncJobCronJobDetail().getObject());
cronTriggerFactoryBean.setCronExpression("0 0 1 * * ?");
return cronTriggerFactoryBean;
}
/**
* repeat code JobDetail and CronTrigger ...
**/
/**
* 调度工厂
* @return
*/
@Bean(name = "schedulerFactory")
public SchedulerFactoryBean schedulerFactoryBean(){
SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
//在添加新的触发器时，增加相应的触发器
schedulerFactoryBean.setTriggers(cronTrigger().getObject(),
channelSyncJobCronTrigger().getObject()
);
return schedulerFactoryBean;
}
}
2.刷新的定时任务
@Component
public class ScheduleInfoAction{
private Logger logger = LoggerFactory.getLogger(ScheduleInfoAction.class);
private Scheduler scheduler;
public void reScheduleJob() throws SchedulerException {
scheduler = (Scheduler) SpringContextUtils.getBean("schedulerFactory");
// 数据库取任务列表
List<String> jobs = yunyingDao.getJobCodesFromDB(null);
if (jobs != null && !jobs.isEmpty()) {
for (String job : jobs) {
TriggerKey triggerKey = new TriggerKey(job + "CronTrigger", Scheduler.DEFAULT_GROUP);
CronTriggerImpl trigger = (CronTriggerImpl) scheduler.getTrigger(triggerKey);
String dbCronExpression = getCronExpressionFromDB(job);
String originConExpression;
if (StringUtils.isNotBlank(dbCronExpression)){
if (trigger != null){
originConExpression = trigger.getCronExpression();
if(!dbCronExpression.equalsIgnoreCase(originConExpression)){
try{
trigger.setCronExpression(dbCronExpression);
scheduler.rescheduleJob(triggerKey, trigger);
logger.info("jobCode:{}, dbCron:{}, originCron:{}",
job,dbCronExpression,originConExpression);
} catch (Exception e) {
logger.error("jobCode:{}, dbCron:{}, originCron:{}, refresh Cron Error:{}" ,
job,dbCronExpression, originConExpression, e);
}
}
}else {
trigger = (CronTriggerImpl)SpringContextUtils.getBean(job + "CronTrigger");
if (trigger != null){
scheduler.scheduleJob(trigger);
logger.info("scheduleJob:{}", job);
}
}
}else {
if (trigger != null){
scheduler.unscheduleJob(triggerKey);
logger.info("unscheduleJob:{}", job);
}
}
}
}
}
// 数据库取最新的Cron值
private String getCronExpressionFromDB(String jobName){
return yunyingDao.getCronByCode(jobName);
}
}3.设置定时任务
1）基础抽象类的实现，（由于可能处于分布式环境中，需要使用zookeeper的分布式锁）
public abstract class BaseTask {
private Logger logger = LoggerFactory.getLogger(BaseTask.class);
public abstract void execute();
public void doTask(){
String clazzName = this.getClass().getSimpleName();
String className = clazzName.substring(0,1).toLowerCase() + clazzName.substring(1);
String lockPath = "/oper/schedule/" + className + "/lock";
ZooKeeperClient zkClient = (ZooKeeperClient)SpringContextUtils.getBean("zkClient");
CronTriggerImpl cronTrigger = (CronTriggerImpl)SpringContextUtils
.getBean(className.replace("Task","Job") + "CronTrigger");
logger.info("lock path:{},zkClient:{},trigger cron:{}", lockPath, zkClient,
cronTrigger.getCronExpression());
Boolean isGetLocker = false;
InterProcessMutex lock = new InterProcessMutex(zkClient.getClient(), lockPath);
try {
if (lock.acquire(2000, TimeUnit.MILLISECONDS)){
isGetLocker = true;
execute();
}
} catch (Exception e) {
logger.error("BaseTask 执行锁任务时抛错：", e);
}finally {
try {
if(isGetLocker){
lock.release();
}
} catch (Exception e) {
logger.error("释放锁出错",e);
}
}
}
}需要执行的定时任务的代码实现继承BaseTask，并实现业务代码。
不过，这里我们中间又使用了Groovy代码，由于Groovy代码在这里可以直接对数据库进行操作，所以这里继承BaseTask 的定时任务，我们是调用Groovy Class 的方法。
2）定时任务的实现
@Component
public class DycChannelSyncTask extends BaseTask{
private Logger logger = LoggerFactory.getLogger(DycChannelSyncTask.class);
public void execute() {
logger.info("渠道信息开始执行任务:"
+ TimeUtils.formatTime(new Date(), TimeUtils.FORMAT_YYYYMMDDHHMMSS));
//进行数据抽取存储，这里调的是groovy的方法
channelSyncJob.doJob();
logger.info("渠道信息任务执行完成:"
+ TimeUtils.formatTime(new Date(), TimeUtils.FORMAT_YYYYMMDDHHMMSS));
}
}4.需要引入的Maven
<!-- 定时任务 -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>
<!-- groovy要用到的，数据库连接，zookeeper要用到的（我这的是封装好的） -->
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.4.6</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.31</version>
</dependency>
<!-- zookeeper -->
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
</dependency>
5.数据库中定时任务的表结构
CREATE TABLE `tb_job_config` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '自增ID',
`jobCode` varchar(32) DEFAULT NULL COMMENT '商户',
`jobName` varchar(32) DEFAULT NULL COMMENT '渠道编号',
`cron` varchar(128) DEFAULT NULL,
`jobDetail` longtext COMMENT '渠道名称',
`status` smallint(1) DEFAULT NULL COMMENT '1、有效 2 无效',
PRIMARY KEY (`id`),
UNIQUE KEY `merchantNo_channelCode_unique` (`jobCode`,`jobName`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=164 DEFAULT CHARSET=utf8 COMMENT='任务调度配置表';
INSERT INTO `tb_job_config` (`id`, `jobCode`, `jobName`, `cron`, `jobDetail`, `status`)
VALUES ('139', 'channelUserSyncJob', '鼎有财渠道用户同步', '0 0 0/1 * * ? ', '{"intervalHours":"2"}', '1');
// 定时任务执行完，记录一下任务执行情况，有助于排查问题等等
CREATE TABLE `tb_job_execute_log` (
`id` bigint(64) NOT NULL AUTO_INCREMENT,
`jobCode` varchar(255) DEFAULT NULL COMMENT '任务编号',
`totalNum` bigint(64) DEFAULT NULL COMMENT '记录总数',
`successNum` bigint(64) DEFAULT NULL COMMENT '记录成功数',
`errorNum` bigint(64) DEFAULT NULL COMMENT '记录错误数',
`recordTime` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '记录时间',
PRIMARY KEY (`id`),
KEY `Index_jobCode` (`jobCode`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=52810 DEFAULT CHARSET=utf8 COMMENT='任务执行情况记录表';
另外注意的是数据库中命名的Job，要与实际代码中的命名规则保持一致。
我觉得使用之前的Job，获取我们这边的代码可以简化很多。