java时间段查询将00:00:00更换成23:59:59

Long endtime = reportEndTime.getTime();
//加一天减一秒
Long endTime+(1000*60*60*24-1000)
//时间戳转dateTime
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
没有中间new Long（timeStamp）,因为他们都是精确到毫秒的时间戳，不用再乘以1000进行转换 long longTimeStamp = new Long(new Long(timeStamp) * 1000); Date date = new Date(longTimeStamp); String dareString = simpleDateFormat.format(date); return dareString;

import java.text.ParseException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
 
public class DateTest {
    public static void main(String[] args) throws ParseException {
        //具有转换功能的对象
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        //设置参数
        String startTime = "2023-01-01 00:00:00";
        String endTime = "2023-01-13 00:00:00";
 
//        //String转DateTime
//        Date starDate=new  SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(startTime);
//        Date endDate=new  SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(endTime);
 
//        LocalDateTime startDate = LocalDateTime.parse(startTime,df);
        LocalDateTime endDate = LocalDateTime.parse(endTime,df);
        //将 endTime 加一天再减一秒
        LocalDateTime localDateTime = endDate.plusDays(1);
        //减一秒
        LocalDateTime endDateTime = localDateTime.minusSeconds(1);
        System.out.println(startTime);
        System.out.println(endDateTime);
 
 
    }
}