springboot项目，启动项目后启动的定时器，定时执行任务

Posted 2021-01-27 茂财

package com.wiscom.ism.webapi.ismController;

import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.io.File;
import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

@Component
public class DeleteImgController implements ApplicationRunner {

    /*
     * 定时删除以图搜图上传到static upload images search 文件夹下的照片
     * d定时每天的23点59分删除
     * */

//项目启动后执行的方法
    @Override
    public void run(ApplicationArguments args) throws Exception {
        startDeleteImgService();//
    }

    //定时器
    public void startDeleteImgService() {
        System.out.println("启动删除＝＝＝＝");
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, 23);
        calendar.set(Calendar.MINUTE, 59);
        calendar.set(Calendar.SECOND, 0);
        Date time = calendar.getTime();
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {
            public void run() {
                File file = new File("static/upload/images/search");
                if (file.exists()) {
                    String[] list = file.list();
                    for (String name : list) {
                        File f = new File("static/upload/images/search", name);
                        if (f.isFile()) {
                            f.delete();
                        }
                    }
                }
            }
        }, time, 1000 * 60 * 60 * 24);
    }     //执行时间     间隔时间


}