JAVA date format tool class DateUtil. java, tool class dateutil. java

JAVA date format tool class DateUtil. java, tool class dateutil. java

DateUtil. java

1 package pers. kangxu. datautils. utils; 2 3 import java. text. simpleDateFormat; 4 import java. util. date; 5 6 import pers. kangxu. datautils. common. exception. defineException; 7 8/** 9*10 * <B> 11 * date processing tool class 12 * </B> 13 * @ author kangxu14 * 15 */16 public class DateUtil {17 18/ ** 19 * String Date to Date format Date 20 * @ param str String Date 21 * @ param dateFormat String Date format 22 * @ return23 */24 public static Date strToDate (String strDate, string dateFormat) {25 SimpleDateFormat sdf = new SimpleDateFormat (dateFormat); 26 Date date = null; 27 try {28 date = sdf. parse (strDate); 29} catch (Exception e) {30 throw new DefineException ("date Format Conversion error"); 31} 32 return date; 33} 34 35/** 36 * convert a date to a String date 37 * @ param date 38 * @ param tarDateFormat date Format 39 * @ return40 */41 public static String dateToStr (date date, string tarDateFormat) {42 43 return new SimpleDateFormat (tarDateFormat ). format (date ); 44} 45 46/** 47 * convert Date Format 48 * @ param strDate string date 49 * @ param srcFormat original format 50 * @ param tarFormat destination format 51 * @ return52 */53 public static String strToStr (String strDate, string srcFormat, String tarFormat) {54 SimpleDateFormat sdf = new SimpleDateFormat (srcFormat); 55 try {56 Date date = sdf. parse (strDate); 57 sdf = new SimpleDateFormat (tarFormat); 58 strDate = sdf. format (date); 59} catch (Exception e) {60 throw new DefineException ("date format Conversion error"); 61} 62 return strDate; 63} 64 65}

Test use
DateUtilTester. java

 1 package pers.kangxu.datautils.test; 2  3 import java.util.Date; 4  5 import pers.kangxu.datautils.utils.DateUtil; 6  7 public class DateUtilTester { 8     public static void main(String[] args) { 9         System.out.println(DateUtil.dateToStr(new Date(), "yyyy-MM-dd HH:mm:dd"));10         System.out.println(DateUtil.strToStr("2011-1-1 1:1:1","yyyy-MM-dd HH:mm:ss", "yyyyMMddHHmmss"));11         System.out.println(DateUtil.strToDate("2011-1-1 1:1:1","yyyy-MM-dd HH:mm:ss"));12     }13 14 }