【高级篇】进阶提升SpringBoot+Quartz实战---监听器配置

前言

本篇博客主要是分享，高级篇Quartz的配置，嗨皮的开发与工作

---

1.监听器TriggerListener详解

• 监听与触发器（trigger）相关事件
  1.触发器触发：triggerFired(监听触发器的开始)
  2.触发器完成：triggerComplete
  3.触发器否决：vetoJobExecution

1.编写监听器实例

/**
*通过实现这个接口，我们发现需要实现的方法很多，
* 我每当实现这个接口，重写他的方法，感觉有点别扭，
* 怎么才能，我实现你这个借口，但是，我不想实现所有的方法，
* 来一波骚操作。。。。
*/

• 修改：

package com.zcw.springbootquartz.listener;

import org.quartz.JobExecutionContext;
import org.quartz.Trigger;
import org.quartz.listeners.TriggerListenerSupport;
import org.springframework.stereotype.Component;

import java.time.LocalTime;

/**
 * @ClassName : MyTriggerListener
 * @Description : 监听器编写
 * @Author : Zhaocunwei
 * @Date: 2020-06-13 09:15
 */
@Component
public class MyTriggerListener extends TriggerListenerSupport {

    @Override
    public String getName() {
        return "myTriggerListener";
    }
    /**
     * 打印触发器开始完成时间与结束时间
     */
    @Override
    public void triggerFired(Trigger trigger, JobExecutionContext context) {
        super.triggerFired(trigger, context);
        LocalTime now = LocalTime.now();
        System.out.println(now.toString()+"Trigger is fired!");
    }

    @Override
    public void triggerComplete(Trigger trigger, JobExecutionContext context,
                                Trigger.CompletedExecutionInstruction triggerInstructionCode) {
        super.triggerComplete(trigger, context, triggerInstructionCode);
        String triggerToString = triggerInstructionCode.toString();
        LocalTime now = LocalTime.now();
        System.out.println(now.toString()+"Trigger is completed!"+ triggerToString);
    }
}

• 把上面的Trigger监听器，注册到我们的调度中心中去：

解决quqrtz监听器无法注入SpringBoot项目中问题

暂定，说实现工厂，没有实现这个功能，ε=(´ο｀*)))唉— 后期使用xxx-job替代

2.TriggerListener实战：节假日期间不执行任务

package com.zcw.springbootquartz.listener;

import org.quartz.JobExecutionContext;
import org.quartz.Trigger;
import org.quartz.listeners.TriggerListenerSupport;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.quartz.SchedulerFactoryBean;
import org.springframework.stereotype.Component;

import java.time.LocalTime;
import java.util.Calendar;

/**
 * @ClassName : MyTriggerListener
 * @Description : 监听器编写
 * @Author : Zhaocunwei
 * @Date: 2020-06-13 09:15
 */
@Component
public class MyTriggerListener extends TriggerListenerSupport {


    @Override
    public String getName() {
        return "myTriggerListener";
    }
    /**
     * 打印触发器开始完成时间与结束时间
     */
    @Override
    public void triggerFired(Trigger trigger, JobExecutionContext context) {
        super.triggerFired(trigger, context);
        LocalTime now = LocalTime.now();
        System.out.println(now.toString()+"Trigger is fired!");
    }

    @Override
    public void triggerComplete(Trigger trigger, JobExecutionContext context,
                                Trigger.CompletedExecutionInstruction triggerInstructionCode) {
        super.triggerComplete(trigger, context, triggerInstructionCode);
        String triggerToString = triggerInstructionCode.toString();
        LocalTime now = LocalTime.now();
        System.out.println(now.toString()+"Trigger is completed!"+ triggerToString);
    }

    @Override
    public boolean vetoJobExecution(Trigger trigger, JobExecutionContext context) {
        System.out.println("vetoJobExecution 正在执行");
        //如果时间是 5.15. 25. 尾数是5的时间点，就不执行
        Calendar now = Calendar.getInstance();
        int second = now.get(Calendar.SECOND);
        if(second %10 ==5){
            System.out.println("本次Trigger不触发！！");
            return true;
        }
        return false;
    }
}

3.作业监听器JobListener详解

• 监听job相关事件
  主要包括： job即将执行，job完成执行

4.JobListener实战：记录Job任务执行时间

package com.zcw.springbootquartz.listener;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.listeners.JobListenerSupport;

import java.time.LocalTime;

/**
 * @ClassName : MyJobListener
 * @Description :
 * @Author : Zhaocunwei
 * @Date: 2020-06-13 11:32
 */
public class MyJobListener extends JobListenerSupport {
    @Override
    public String getName() {
        return "myJobListener";
    }

    @Override
    public void jobToBeExecuted(JobExecutionContext context) {
        super.jobToBeExecuted(context);
        LocalTime now = LocalTime.now();
        System.out.println(now.toString()+"jobToBeExecuted");
    }

    @Override
    public void jobWasExecuted(JobExecutionContext context, JobExecutionException jobException) {
        super.jobWasExecuted(context, jobException);
        LocalTime now =LocalTime.now();
        System.out.println(now.toString()+"jobWasExecuted");
    }

    @Override
    public void jobExecutionVetoed(JobExecutionContext context) {
        super.jobExecutionVetoed(context);
        LocalTime now =LocalTime.now();
        System.out.println(now.toString()+"jobExecutionVetoed");
    }
}