定时任务Quartz

quartz是一个功能丰富的开源作业调度库

1. 添加pom依赖

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-quartz</artifactId>
   </dependency>

2. 创建定时Job

   • 通过普通JavaBean创建，添加@Component注解将之注册到容器

   /**
    * @author wsyjlly
    * @create 2019.07.17 - 14:40
    **/
   @Component
   public class ScheduleDemo2 {
       public void schedule(){
           System.out.println("ScheduleDemo2.schedule...");
       }
   }

   • 通过继承抽象类QuartzJobBean创建，该方式需要实现该类中的executeInternal方法，该方法在任务被调用时使用。

   /**
    * @author wsyjlly
    * @create 2019.07.17 - 14:40
    **/
   public class ScheduleDemo3 extends QuartzJobBean {
       private String name;
       public void setName(String name){
           this.name = name;
       }
   
       @Override
       protected void executeInternal(JobExecutionContext jobExecutionContext){
           System.out.println("ScheduleDemo3.executeInternal..."+name);
       }
   }
   

3. 创建Quartz配置类QuartzConfig对Job进行配置

   /**
    * @author wsyjlly
    * @create 2019.07.17 - 14:47
    **/
   @Configuration
   public class QuartzConfig {
       
       @Bean
       MethodInvokingJobDetailFactoryBean jobDetail1(){
           MethodInvokingJobDetailFactoryBean bean = new MethodInvokingJobDetailFactoryBean();
           bean.setTargetBeanName("scheduleDemo2");
           bean.setTargetMethod("schedule");
           return bean;
       }
       
       @Bean
       JobDetailFactoryBean jobDetail2(){
           JobDetailFactoryBean bean = new JobDetailFactoryBean();
           bean.setJobClass(ScheduleDemo3.class);
           JobDataMap jobDataMap = new JobDataMap();
           jobDataMap.put("name","ysw");
           bean.setJobDataMap(jobDataMap);
           bean.setDurability(true);
           return bean;
       }
       
       @Bean
       SimpleTriggerFactoryBean simpleTrigger(){
           SimpleTriggerFactoryBean bean = new SimpleTriggerFactoryBean();
           bean.setJobDetail(jobDetail1().getObject());
           bean.setRepeatCount(3);
           bean.setStartDelay(1000);
           bean.setRepeatInterval(2000);
           return bean;
       }
       
       @Bean
       CronTriggerFactoryBean cronTrigger(){
           CronTriggerFactoryBean bean = new CronTriggerFactoryBean();
           bean.setJobDetail(jobDetail2().getObject());
           bean.setCronExpression("* * * * * ?");
           return bean;
       }
   
       @Bean
       SchedulerFactoryBean schedulerFactory(){
           SchedulerFactoryBean bean = new SchedulerFactoryBean();
           SimpleTrigger simpleTrigger = simpleTrigger().getObject();
           CronTrigger cronTrigger = cronTrigger().getObject();
           bean.setTriggers(simpleTrigger,cronTrigger);
           return bean;
       }
   }