Struts.netshop

package com.netshop.common.utils; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; public class DateFormatter { private static SimpleDateFormat formatter; public DateFormatter() { } public static String shortDate(Date aDate) { formatter = new SimpleDateFormat("yyyy-MM-dd"); return formatter.format(aDate); } public static String mailDate(Date aDate) { formatter = new SimpleDateFormat("yyyyMMddHHmm"); return formatter.format(aDate); } public static String longDate(Date aDate) { formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return formatter.format(aDate); } public static String longDateGB(Date aDate) { formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return formatter.format(aDate); } public static String shortDateGB(Date aDate) { formatter = new SimpleDateFormat("yyyy.MM.dd"); return formatter.format(aDate); } public static String formatDate(Date aDate, String formatStr) { formatter = new SimpleDateFormat(formatStr); return formatter.format(aDate); } public static Date getDate(String yyyymmdd) { if ((null == yyyymmdd) || (yyyymmdd.trim().length() == 0)) return null; int year = Integer.parseInt(yyyymmdd .substring(0, yyyymmdd.indexOf("-"))); int month = Integer.parseInt(yyyymmdd.substring( yyyymmdd.indexOf("-") + 1, yyyymmdd.lastIndexOf("-"))); int day = Integer.parseInt(yyyymmdd .substring(yyyymmdd.lastIndexOf("-") + 1)); Calendar cal = Calendar.getInstance(); cal.set(year, month - 1, day); return cal.getTime(); } public static Date getDateFull(String yyyymmdd) { if ((null == yyyymmdd) || (yyyymmdd.trim().length() == 0)) return null; int year = Integer.parseInt(yyyymmdd .substring(0, yyyymmdd.indexOf("-"))); int month = Integer.parseInt(yyyymmdd.substring( yyyymmdd.indexOf("-") + 1, yyyymmdd.lastIndexOf("-"))); int day = Integer.parseInt(yyyymmdd .substring(yyyymmdd.lastIndexOf("-") + 1)); Calendar cal = Calendar.getInstance(); cal.set(year, month - 1, day, 24, 60, 60); return cal.getTime(); } public static Date parser(String strDate) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); try { return sdf.parse(strDate); } catch (Exception e) { return null; } } public static Date parser(String strDate, String formatter) { SimpleDateFormat sdf = new SimpleDateFormat(formatter); try { return sdf.parse(strDate); } catch (Exception e) { return null; } } /** * get Date with only date num. baoxy add * * @param yyyymmdd * @return * @author like */ public static Date getDateOnly(String yyyymmdd) { if ((null == yyyymmdd) || (yyyymmdd.trim().length() == 0)) return null; int year = Integer.parseInt(yyyymmdd .substring(0, yyyymmdd.indexOf("-"))); int month = Integer.parseInt(yyyymmdd.substring( yyyymmdd.indexOf("-") + 1, yyyymmdd.lastIndexOf("-"))); int day = Integer.parseInt(yyyymmdd .substring(yyyymmdd.lastIndexOf("-") + 1)); Calendar cal = Calendar.getInstance(); cal.set(year, month - 1, day, 0, 0, 0); return cal.getTime(); } public static Date addMonth(Date myDate, int amount) { GregorianCalendar cal = new GregorianCalendar(); cal.setTime(myDate); boolean isEndDayOfMonth_old = cal .getActualMaximum(GregorianCalendar.DAY_OF_MONTH) == cal .get(GregorianCalendar.DAY_OF_MONTH); cal.add(GregorianCalendar.MONTH, amount); boolean isEndDayOfMonth_new = cal .getActualMaximum(GregorianCalendar.DAY_OF_MONTH) == cal .get(GregorianCalendar.DAY_OF_MONTH); if (isEndDayOfMonth_old && !isEndDayOfMonth_new) { cal.set(GregorianCalendar.DATE, cal .getActualMaximum(GregorianCalendar.DAY_OF_MONTH)); } return cal.getTime(); } public static Date addDay(Date myDate, int amount) { Calendar cal = Calendar.getInstance(); cal.setTime(myDate); cal.add(Calendar.DAY_OF_MONTH, amount); return cal.getTime(); } public static Date addYear(Date myDate, int amount) { GregorianCalendar cal = new GregorianCalendar(); cal.setTime(myDate); boolean isEndDayOfMonth_old = cal .getActualMaximum(GregorianCalendar.DAY_OF_MONTH) == cal .get(GregorianCalendar.DAY_OF_MONTH); cal.add(GregorianCalendar.YEAR, amount); boolean isEndDayOfMonth_new = cal .getActualMaximum(GregorianCalendar.DAY_OF_MONTH) == cal .get(GregorianCalendar.DAY_OF_MONTH); if (isEndDayOfMonth_old && !isEndDayOfMonth_new) { cal.set(GregorianCalendar.DATE, cal .getActualMaximum(GregorianCalendar.DAY_OF_MONTH)); } return cal.getTime(); } /* * the mapping from jdk is : 1-Sun; 2-Mon;3-Tues; 4-Weds; 5-Thur;6-Fri; * 7-Sat; @author like */ public static int getWeekDay(Date myDate) { GregorianCalendar cal = new GregorianCalendar(); cal.setTime(myDate); return cal.get(GregorianCalendar.DAY_OF_WEEK); } /* * the mapping from vas2005 is : 1-Mon;2-Tues; 3-Weds; 4-Thur;5-Fri; * 6-Sat;7-Sun; */ public static int getConvertWeekDay(Date myDate) { int day = getWeekDay(myDate); int result = day - 1; if (result == 0) result = 7; return result; } public static int getTimeFromDate(Date myDate) { SimpleDateFormat sdf = new SimpleDateFormat("hhmmss"); int result = Integer.parseInt(sdf.format(myDate)); return result; } }