SpringBoot下quertz集群搭建(加载多个trigger)
网上查阅了许多资料,看见有不少quertz搭建的demo,但是少有SpringBoot下quertz执行多个trigger的文章,
在使用过程中发现
如果执行的job类有异常未处理的话会导致整个定时任务停止,目前尚未找到原因,我的解决方式是try..cach处理掉所有异常….
亲测可用,如有不足..还希望各位大大指点
本人新萌菜鸟一枚…查看了部分源码后编写如下…
1、创建quertzConfig类,将quertz集群控制交由spring管理
@Configuration
public class QueryConfig{
@Autowried
private DataSource dataSource;
//相关基本信息配置
private Properties quartzProperties() throws IOException {
Properties prop = new Properties();
prop.put("quartz.scheduler.instanceName", "quartz_1");//实例名集群中每个应用实例名需不一致
prop.put("org.quartz.scheduler.instanceId", "AUTO");
prop.put("org.quartz.scheduler.skipUpdateCheck", "true");
prop.put("org.quartz.scheduler.jmx.export", "true");
//数据源配置如果不用单独的数据库配置集群 则可以不用配置数据源信息
prop.put("org.quartz.dataSource.myDS.driver", myDSDriver);
prop.put("org.quartz.dataSource.myDS.URL", myDSURL);
prop.put("org.quartz.dataSource.myDS.user", myDSUser);
prop.put("org.quartz.dataSource.myDS.password", myDSPassword);
prop.put("org.quartz.dataSource.myDS.maxConnections", 30);
prop.put("org.quartz.jobStore.class", "org.quartz.impl.jdbcjobstore.JobStoreTX");
prop.put("org.quartz.jobStore.driverDelegateClass", "org.quartz.impl.jdbcjobstore.StdJDBCDelegate");
prop.put("org.quartz.jobStore.dataSource", dataSource);//使用现有数据源(如果不用则需要填写上面配置的数据源 例如:myDS)
prop.put("org.quartz.jobStore.tablePrefix", "QRTZ_");//集群所使用表名字开头
prop.put("org.quartz.jobStore.isClustered", "true");//是否开启集群
prop.put("org.quartz.jobStore.clusterCheckinInterval", "20000");
prop.put("org.quartz.jobStore.maxMisfiresToHandleAtATime", "1");
prop.put("org.quartz.jobStore.misfireThreshold", "120000");
prop.put("org.quartz.jobStore.txIsolationLevelSerializable", "true");
prop.put("org.quartz.jobStore.selectWithLockSQL", "SELECT * FROM {0}LOCKS WHERE LOCK_NAME = ? FOR UPDATE");
prop.put("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool");
prop.put("org.quartz.threadPool.threadCount", "10");
prop.put("org.quartz.threadPool.threadPriority", "5");
prop.put("org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread", "true");
prop.put("org.quartz.plugin.triggHistory.class", "org.quartz.plugins.history.LoggingJobHistoryPlugin");
prop.put("org.quartz.plugin.shutdownhook.class", "org.quartz.plugins.management.ShutdownHookPlugin");
prop.put("org.quartz.plugin.shutdownhook.cleanShutdown", "true");
return prop;
}
@Bean
public SchedulerFactoryBean schedulerFactoryBean() throws IOException {
SchedulerFactoryBean schedulerFactoryBean = new SchedulerFactoryBean();
//用于quartz集群,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
schedulerFactoryBean.setOverwriteExistingJobs(true);
//用于quartz集群,加载quartz数据源 直接注入便可此处省略
schedulerFactoryBean.setDataSource(dataSource);
//QuartzScheduler 延时启动，应用启动完10秒后 QuartzScheduler 再启动
schedulerFactoryBean.setStartupDelay(10);
schedulerFactoryBean.setQuartzProperties(quartzProperties());//加载配置文件
schedulerFactoryBean.setAutoStartup(true);
schedulerFactoryBean.setApplicationContextSchedulerContextKey("applicationContext");
/**
*注册触发器 此处是关键 setTriggers(可传入Trigger数组)
*/
Trigger[] triggerArray = createTriggerArray();
factory.setTriggers(triggerArray);
return factory;
}
/**
* 创建Trigger[]
*
*/
private Trigger[] createTriggerArray() {
//此处可注入类通过数据库或者配置文件获取相关trigger信息
List<Entity> entityList = new ArrayList<>();//demo 模拟查出来的List
int count = entityList.size();
Trigger[] triggerArray = new Trigger[count];
for(int i = 0; i < count; i++){
Entity ent = eneityList.get(i);
String jobClassName = ent.getJobClassName(); //获取要执行的类名
String method = ent.getMethod(); //获取要执行的方法
String cronex = ent.getCronex(); //获取执行时间 即cronex表达式
String groupName = ent.getGroupname(); //获取分组名
//构造 JobDetail
JobDetail jobDetail = getJobDetail(jobClassName,method,groupName);
//构造 Trigger
Trigger trigger = getTrigger(jobDetail,jobClassName,groupName,cronex);
triggerArray[i]=trigger;
}
return triggerArray;
}
/**
* 创建Trigger
*
*/
private Trigger getTrigger(JobDetail jobDetail,String jobClassName,String groupName,String cronex) {
CronScheduleBuilder builder = new CronScheduleBuilder(cronex);//传入cronex表达式 如果语法错误则抛出异常
Map<String,Object> jobDetaMap = new HashMap<>();
jobDetaMap.put("jobDetail",jobDetail);
return TriggerBuilder.newTrigger()
.withIdentity(jobClassName, groupName)//设置分组
.forJob(jobDetail)//设置jobDetail
.usingJobData(new JobDataMap(jobDetaMap))//设置jobDetail
.withScheduler(builder)//设置cronex表达式
.build(); //生成Trigger
}
/**
* 创建JobDetail
*
*/
private JobDetail getJobDetail(String jobClassName,String method,String groupName) {
JobDetailImps jobDetail = new JobDetailImps();
Map<String, String> map = new HashMap<>();
map.put("targetObject", jobClassName);
map.put("targetMethod", method);
JobDataMap jobDataMap = new JobDataMap(map);//指定需要执行的类和方法
jobDetail.setJobClass(InvokingJobDetailDetailFactory.class);//指定一个类 获取传入的方法名与类名,通过反射调用
jobDetail.setName(jobClassName);//设置名称
jobDetail.setGroup(groupName);//设置分组名
jobDetail.setDurability(true);
jobDetail.setRequestsRecovery(true);
return factoryBean;
}
}2、配置反射实现类
@Component
@PersistJobDataAfterExecution
@DisallowConcurrentExecution //注解声明 当前类执行未结束时不允许重复调用
public class InvokingJobDetailDetailFactory extends Job{
@Override
protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
try {
String targetObject = String.valueOf(context.jobDetail().getJobDataMap.get("targetObject"));//获取需要执行的类名
String targetMethod = String.valueOf(context.jobDetail().getJobDataMap.get("targetMethod"));//获取要执行的方法名
Object obj = ApplicationContextProvider.getBean(targetObject);//springBoot 工具类通过bean名获取bean实例
Method m = null;
try {
m = obj.getClass().getMethod(targetMethod);
m.invoke(obj);
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
} catch (Exception e) {
throw new JobExecutionException(e);
}
}
}
3、springBoot 工具类
@Component
public class ApplicationContextProvider implements ApplicationContextAware {
/**
* 上下文对象实例
*/
private ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
/**
* 获取applicationContext
* @return
*/
public ApplicationContext getApplicationContext() {
return applicationContext;
}
/**
* 通过name获取 Bean.
* @param name
* @return
*/
public Object getBean(String name){
return getApplicationContext().getBean(name);
}
/**
* 通过class获取Bean.
* @param clazz
* @param <T>
* @return
*/
public <T> T getBean(Class<T> clazz){
return getApplicationContext().getBean(clazz);
}
/**
* 通过name,以及Clazz返回指定的Bean
* @param name
* @param clazz
* @param <T>
* @return
*/
public <T> T getBean(String name,Class<T> clazz){
return getApplicationContext().getBean(name, clazz);
}
}
转载于:https://my.oschina.net/u/3669812/blog/1586302