Springboot启动异步定时器

1.启动类上加@EnableAsync注解支持异步定时器，@EnableScheduling注解启动定时器

@SpringBootApplication(exclude= {DataSourceAutoConfiguration.class}) //去掉springboot 默认的数据源配置 
@MapperScan("com.example.demo3.mapper") 
@EnableAsync 
@EnableScheduling 
public class Demo3Application { 
	  
	    public static void main(String[] args) { 
	        SpringApplication.run(Demo3Application.class, args); 
	    } 
} 

2.方法上加@Async注解 异步定时任务

@Component 
public class AsyncTask { 
 
	 @Async 
	@Scheduled(cron = "0/2 * * * * *") 
	public void task() throws InterruptedException { 
		Thread.sleep(1000L); 
		System.out.println("哈哈我是异步定时器1:" + new Date()); 
	} 
 
	@Async 
	@Scheduled(cron = "0/2 * * * * *") 
	public void task2() throws InterruptedException { 
		Thread.sleep(1000L); 
		System.out.println("哈哈我是异步定时器2:" + new Date()); 
	} 
}