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2024-01-15
2024-01-03
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2023-10-11
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package itn.com.cmm.util;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.Month;
import java.time.format.DateTimeFormatter;
import java.util.Date;
/**
*
* @author : 이호영
* @fileName : DateUtil.java
* @date : 2023.04.06
* @description : Date 다루는 Util
* ===========================================================
* DATE AUTHOR NOTE
* ----------------------------------------------------------- *
* 2023.04.06 이호영 최초 생성
*
*
*
*/
public final class DateUtil {
/**
* @methodName : getTodayYearAndMonthAndFirstDay
* @author : 이호영
* @date : 2023.04.06
* @description : 해당 년월일 구하기 : 일은 1일
* @return ex) 2023/04/01
*/
public static String getTodayYearAndMonthAndFirstDay() {
LocalDate currentDate = LocalDate.now();
return LocalDate.of(currentDate.getYear(), currentDate.getMonthValue(), 1)
.format( DateTimeFormatter.ofPattern("yyyy/MM/dd"));
}
/**
* @methodName : getTodayYearAndMonthAndLastDay
* @author : 이호영
* @date : 2023.04.06
* @description : 해당 년월일 구하기 : 일은 마지막일
* @return ex) 2023/04/30
*/
public static String getTodayYearAndMonthAndLastDay() {
LocalDate currentDate = LocalDate.now();
return LocalDate.of(currentDate.getYear(), currentDate.getMonthValue(), currentDate.lengthOfMonth())
.format( DateTimeFormatter.ofPattern("yyyy/MM/dd"));
}
/**
* @methodName : getNowYearToString
* @author : 이호영
* @date : 2023.04.07
* @description : 현재 연도
* @return : String
*/
public static String getNowYearToString() {
return Integer.toString(LocalDate.now().getYear());
}
/**
* @methodName : getNowMonthToString
* @author : 이호영
* @date : 2023.04.07
* @description : 현재 월
* @return : String
*/
public static String getNowMonthToString() {
LocalDate currentDate = LocalDate.now();
return Integer.toString(currentDate.getMonthValue());
}
/**
* @methodName : getNowDayToString
* @author : 이호영
* @date : 2023.04.07
* @description : 현재 일
* @return : String
*/
public static String getNowDayToString() {
LocalDate currentDate = LocalDate.now();
return Integer.toString(currentDate.getDayOfMonth());
}
/**
* @methodName : getNowDayToString
* @author : 이호영
* @date : 2023.08.08
* @description : yyyy-MM-dd HH:mm:ss.S 형식을 yyyy-MM-dd HH:mm 로 변환
* @return
* @throws ParseException
*/
public static String getChangFormatS(String str) throws ParseException {
SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S"); // 원본 형식
Date date = inputFormat.parse(str); // 문자열을 날짜 객체로 변환
SimpleDateFormat outputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm"); // 원하는 출력 형식
String formattedDate = outputFormat.format(date); // 날짜 객체를 원하는 형식의 문자열로 변환
return formattedDate; // 출력: 2023-08-07 09:36
}
}