bigmodel/src/main/java/com/bfd/qanda/utils/DateUtil.java

package com.bfd.qanda.utils;


import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;

import lombok.extern.slf4j.Slf4j;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

/**
 * 日期工具类
 *
 * @author jian.mao
 * @date 2022年11月15日
 * @description
 */
@Slf4j
public class DateUtil {

    /**
     * @return
     */
    public static String getTimeStrForNow() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHH");
        return sdf.format(new Date());
    }


    public static String getTimeStrForDay(long time) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

        return sdf.format(new Date(time * 1000));
    }

    public static String getTimeStrForDay() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

        return sdf.format(new Date());
    }


    public static String getDateTime() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String time = sdf.format(new Date());
        return time;
    }

    public static String getDateTime(Long timestap) {

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String time = sdf.format(new Date(timestap));
        return time;
    }

    public static String getDate(Long timestap) {

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String time = sdf.format(new Date(timestap));
        return time;
    }

    public static String getDateTimeForMonth() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMM");
        String time = sdf.format(new Date());
        return time;
    }

    /**
     * 休眠
     *
     * @param millis 毫秒
     */
    public static void sleep(long millis) {
        try {
            Thread.sleep(millis);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    /**
     * 1. @Description:时间戳转时间
     * 2. @Author: ying.zhao
     * 3. @Date: 2023/3/28
     */

    public static String timestampToDate(String time) {
        int thirteen = 13;
        int ten = 10;
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//        if (time.length() == thirteen) {
        if (time.length() > ten) {
            return sdf.format(new Date(Long.parseLong(time)));
        } else {
            return sdf.format(new Date(Integer.parseInt(time) * 1000L));
        }
    }
    
    public static String parseCreated(String jsonTime){
    	String formattedDateTime = getDateTime();
    	 try {
             // 使用fastjson解析JSON数据
             JSONObject jsonObject = JSON.parseObject(jsonTime);
             // 获取日期和时间的值
             JSONObject dateObject = jsonObject.getJSONObject("date");
             int day = dateObject.getIntValue("day");
             int month = dateObject.getIntValue("month");
             int year = dateObject.getIntValue("year");

             JSONObject timeObject = jsonObject.getJSONObject("time");
             int hour = timeObject.getIntValue("hour");
             int minute = timeObject.getIntValue("minute");
             int second = timeObject.getIntValue("second");

             // 创建LocalDateTime对象
             LocalDateTime dateTime = LocalDateTime.of(year, month, day, hour, minute, second);

             // 定义日期时间格式化器
             DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");

             // 格式化日期时间
             formattedDateTime = dateTime.format(formatter);
         } catch (Exception e) {
        	 log.info("日期转换失败：{}",e);
         }
    	 return formattedDateTime;
    }

    /**
     * 字符串转换日期
     * @param format
     * @param date
     * @return
     */
    public static Date strToDate(String format,String date){
		SimpleDateFormat sdf = new SimpleDateFormat(format);
		if (date == null || date.equals("")){
			return new Date();
		}else{
			Date ru = null;
			try {
				ru = sdf.parse(date);
			} catch (ParseException e) {
				e.printStackTrace();
			}
			return ru;
		}
	}
    /**
	 * 日期格式话
	 * @param format 日期格式
	 * @param dater 要转换的日期,默认当前时间
	 * @return
	 */
	public static String FormatDate(String format,Date date){
		String fromatDate = null;
		SimpleDateFormat sdf = new SimpleDateFormat(format);
		if (date == null){
			fromatDate = sdf.format(new Date());
		}else{
			fromatDate = sdf.format(date);
		}
		return fromatDate;
	}
    public static void main(String[] args) {
        String time = timestampToDate("955814400000");
        System.out.println(time);
    }
}