spring web ,spring boot 定时任务

用到 ： quartz-2.2.3.jar

spring web ：

1.定义一个注解类：
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface TaskScheduled {

    /**
     * 触发时间
     * 
     * @return
     */
    public String cron() default "0 0 23 * * ?";

}


2.继承Job
import org.quartz.Job;

public interface Task extends Job{
    
}


3.实现Task，做业务处理
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.stereotype.Component;
import com.Task;
import com.TaskScheduled;

@Component
@TaskScheduled(cron="0 0/30 * * * ?")//30分钟轮循一次
public class textTask implements Task {

    @Override
    public void execute(JobExecutionContext arg0) throws JobExecutionException {
        System.out.println("推送数据===================---------------------==========定时任务轮询");

}

spring boot :

import org.quartz.JobExecutionException;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;


/**
 * 
 *
 * @Author 
 * @Date 
 * @Class 
 * Description
 **/
@Component
@EnableScheduling//可以在启动类上注解也可以在当前文件
public class textTask {
//    @Scheduled(cron = "0 0 12 * * ?")//每天中午12点触发 
//    @Scheduled(cron = "0 0 */2 * * ?")//两小时
    @Scheduled(cron = "0 0/2 * * * ?")//两分钟
    public void execute() throws JobExecutionException {
        System.out.println("
"+"推送数据===================---------------------==========定时任务轮询");
}