日期工具类

 

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 * @docRoot DateProcessor
 * @author gonghaitao
 * @version 1.0
 * @serialData 2006-07-19
 *
 */

public class DateProcessor {
 
 /**
  * Name : YMD
  * Explain : YearMonthDay
  * Example : 20060719
  */
 public static final String YMD = "yyyyMMdd";
 
 /**
  * Name : YM
  * Explain : YearMonth
  * Example : 200607
  */
 public static final String YM = "yyyyMM";
 
 /**
  * Name : YsMsD
  * Explain : Year-Month-Day
  * Example : 2006-07-19
  */
 public static final String YsMsD = "yyyy-MM-dd";
 
 /**
  * Name : YsM
  * Explain : Year-Month
  * Example : 2006-07
  */
 public static final String YsM = "yyyy-MM";
 
 /**
  * Name : YMDHMS
  * Explain : YearMonthDayHourMinuteSecond
  * Example : 20060719162816
  */
 public static final String YMDHMS = "yyyyMMddHHmmss";
 
 /**
  * Name : HMS
  * Explain : HourMinuteSecond
  * Example : 162816
  */
 public static final String HMS = "HHmmss";
 
 /**
  * Name : YsMsDsHsMsS
  * Explain : 2006-07-19 16:28:16
  */
 public static final String YsMsDsHsMsS = "yyyy-MM-dd HH:mm:ss";
 
 /**
  *
  * @param date
  * @param dateFormat
  * @return
  * @throws ParseException
  */
 private static Date fromStringToDate(String date,String dateFormat) throws ParseException{
  Date dateTemp = initProcessor(dateFormat).parse(date);
  return  dateTemp;
 }
 
 /**
  *
  * @param date
  * @param dateFormat
  * @return
  */
 private static String fromDateToString(Date date,String dateFormat){
  String dateTemp = initProcessor(dateFormat).format(date);
  return dateTemp;
 }
 
 /**
  *
  * @param dateFormat
  * @return
  */
 private static SimpleDateFormat initProcessor(String dateFormat){
  return new SimpleDateFormat(dateFormat);
 }
 
 /**
  *
  * @param beginDate date for transform
  * @param beginDateFormat   e.g.:YMD
  * @param endDateFormat    e.g.:YMD
  * @return
  * @throws ParseException
  */
 public static String parseStringToString(String beginDate,String beginDateFormat,
    String endDateFormat) throws ParseException{
  Date dateTemp = fromStringToDate(beginDate,beginDateFormat);
  String dateFinal = fromDateToString(dateTemp,endDateFormat);
  return dateFinal;
 }
 
 /**
  *
  * @param date date for transform
  * @param dateFormat  e.g.:YMD
  * @return
  * @throws ParseException
  */
 public static Date parseStringToDate(String date,String dateFormat) throws ParseException{
  return fromStringToDate(date,dateFormat);
 }
 
 /**
  *
  * @param date date for transform
  * @param dateFormat e.g.:YMD
  * @return
  */
 public static String parseDateToString(Date date,String dateFormat){
  return fromDateToString(date,dateFormat);
 }
 
 /**
  * The format of the time is yyyyMMddHHmmss
  * @return
  */
 public static String getCurrentTime(){
  Calendar calendar = Calendar.getInstance();
  int _year = calendar.get(Calendar.YEAR);
  int _month = calendar.get(Calendar.MONTH)+1;
  int _day = calendar.get(Calendar.DAY_OF_MONTH);
  int _hour = calendar.get(Calendar.HOUR_OF_DAY);
  int _minute = calendar.get(Calendar.MINUTE);
  int _second = calendar.get(Calendar.SECOND);
  return (Integer.toString(_year)
    +((_month>=0&&_month<=9)?("0"+Integer.toString(_month)):(Integer.toString(_month)))
     +((_day>=0&&_day<=9)?("0"+Integer.toString(_day)):(Integer.toString(_day)))
     +((_hour>=0&&_hour<=9)?("0"+Integer.toString(_hour)):(Integer.toString(_hour)))
     +((_minute>=0&&_minute<=9)?("0"+Integer.toString(_minute)):(Integer.toString(_minute)))
     +((_second>=0&&_second<=9)?("0"+Integer.toString(_second)):(Integer.toString(_second)))
  );
 }
 
 /**
  * The format of the time is yyyyMMdd
  * @return
  */
 public static String getCurrentDate(){
  Calendar calendar = Calendar.getInstance();
  int _year = calendar.get(Calendar.YEAR);
  int _month = calendar.get(Calendar.MONTH)+1;
  int _day = calendar.get(Calendar.DAY_OF_MONTH);
  return (Integer.toString(_year)
    +((_month>=0&&_month<=9)?("0"+Integer.toString(_month)):(Integer.toString(_month)))
     +((_day>=0&&_day<=9)?("0"+Integer.toString(_day)):(Integer.toString(_day)))
  );
 }
 
 /**
  * Get current year
  * @return
  */
 public static String getCurrentYear(){
  Calendar calendar = Calendar.getInstance();
  int _year = calendar.get(Calendar.YEAR);
  return Integer.toString(_year);
 }
 
 /**
  * Get current date . The format is : yyyy-MM-dd
  * @return
  */
 public static String getCurrentDateSplit(){
  Calendar calendar = Calendar.getInstance();
  int _year = calendar.get(Calendar.YEAR);
  int _month = calendar.get(Calendar.MONTH)+1;
  int _day = calendar.get(Calendar.DAY_OF_MONTH);
  return (Integer.toString(_year)
    +"-"+((_month>=0&&_month<=9)?("0"+Integer.toString(_month)):(Integer.toString(_month)))
     +"-"+((_day>=0&&_day<=9)?("0"+Integer.toString(_day)):(Integer.toString(_day)))
  );
 }
}