SpringBoot項目銷燬DisposableBean接口和 @PreDestroy退出方法

SpringBoot項目銷燬DisposableBean接口和 @PreDestroy退出方法

•  這裏用作定時框架偏移量處理 , 由於持久話已經被處理,但是偏移量還在,導致下次啓動的時候,還會讀取偏移量,持久化中不存在的任務還會被加載到定時隊列中(意思就是這個定時任務,明明已經深刪除了,但是項目中還有)
• 調用銷燬方法,清除偏移量(程序即將關閉之前做的最後一件事)

  ①   接口實現

•    實現 DisposableBean, ExitCodeGenerator 接口

package com.base;
 
import org.springframework.beans.factory.DisposableBean;
import org.springframework.boot.ExitCodeGenerator;
import org.springframework.stereotype.Component;
 
/**
 * 銷燬 by CHENYB date 2019/8/13.
 */
@RestController//被spring管理的標籤都可以 如:@Component @Controller
public class BaseController implements DisposableBean, ExitCodeGenerator {
 
    @Override
    public void destroy() throws Exception {
 
        //System.out.println("<<<<<<<<<<<要銷燬的事 begin>>>>>>>>>>>>>>>");
        try {
            this.jobService.destory();
            logger.info("DESTORY JOB SUCCESS");
        } catch (Exception e) {
            logger.info("DESTORY JOB EXCEPTION : " + e.getMessage());
            e.printStackTrace();
        }
        //System.out.println("<<<<<<<<<<<要銷燬的事 end>>>>>>>>>>>>>>>");
    }
 
    @Override
    public int getExitCode() {
 
        return 5;
    }
}

 ②   註解方法實現

•  使用 @PreDestroy 註解實現

@PreDestroy
    public void destory() {
        //System.out.println("<<<<<<<<<<<要銷燬的事 begin>>>>>>>>>>>>>>>");
        try {
            this.jobService.destory();
            logger.info("DESTORY JOB SUCCESS");
        } catch (Exception e) {
            logger.info("DESTORY JOB EXCEPTION : " + e.getMessage());
            e.printStackTrace();
        }
        //System.out.println("<<<<<<<<<<<要銷燬的事 end>>>>>>>>>>>>>>>");
    }

•  service 方法調用

@Override
    public void destory() {
        this.jobMapper.qrtz_blob_triggersDestory();
        this.jobMapper.qrtz_calendarsDestory();
        this.jobMapper.qrtz_cron_triggersDestory();
        this.jobMapper.qrtz_fired_triggersDestory();
        this.jobMapper.qrtz_locksDestory();
        this.jobMapper.qrtz_paused_trigger_grpsDestory();
        this.jobMapper.qrtz_scheduler_stateDestory();
        this.jobMapper.qrtz_simple_triggersDestory();
        this.jobMapper.qrtz_simprop_triggersDestory();
        this.jobMapper.qrtz_triggersDestory();
        this.jobMapper.qrtz_job_detailsDestory();
    }

 

 

 

chenyb 隨筆記錄, 方便自己學習

2019-08-13 

• 效果實現