dateutility.java

jsp网站开发四“酷”全书原码

package com.publish.shop.util.javabeans;

import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.Timestamp;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.StringTokenizer;
import java.util.Vector;
import java.util.HashSet;

public class DateUtility {

  public static java.sql.Date GetDate(String asDate,String asMask)
  {
    // validate
    if (asDate == null || asDate.equals("")) {
      return null;
    }
    int liYearIndex;
    int liYearPos		=	asMask.indexOf("yyyy",0);
    if(liYearPos == -1)
    {
     liYearPos		=	asMask.indexOf("yy",0);
     if(liYearPos==0)
       asMask="yy"+asMask;
     else if(liYearPos==6)
       asMask=asMask+"yy";
     else
       asMask=asMask.substring(0,3)+"yyyy"+asMask.substring(5);
    }
    int liDayPos		=	asMask.indexOf("dd",0);
    int liMonthPos	=	asMask.indexOf("MM",0);

    int liMaxVal=MaxVal(liDayPos,liMonthPos,liYearPos);
    int liMedVal=MedVal(liDayPos,liMonthPos,liYearPos);
    String lsSep = asMask.substring(liMaxVal-1,liMaxVal);

    if(liYearPos ==liMaxVal) liYearIndex=2;
    else if(liYearPos==liMedVal)liYearIndex = 1;
    else liYearIndex=0;

    if(asDate.length() < 10)
    {
      asDate 					= PadDateStr(asDate,lsSep,liYearIndex);
    }
    String lsDay		= asDate.substring(liDayPos,liDayPos+2);
    String lsMonth	= asDate.substring(liMonthPos,liMonthPos+2);
    String lsYear		= asDate.substring(liYearPos,liYearPos+4);

    Debug.println("DT="+lsDay+"-"+lsMonth+"-"+lsYear);
    return GetSqlDate(Integer.parseInt(lsDay), Integer.parseInt(lsMonth), Integer.parseInt(lsYear));
  }//end GetDate

  public static java.sql.Date GetCurrentSqlDate()
  {
    Calendar lvCal = Calendar.getInstance();
    java.sql.Date lvSqlDate = null;
    lvSqlDate = new java.sql.Date((lvCal.getTime().getTime()/1000)*1000);
    lvCal.clear();
    return lvSqlDate;
  }//end GetSqlDate

  public static java.sql.Date GetSqlDate(int aiDay, int aiMon, int aiYear)
    {
      Calendar lvCal = Calendar.getInstance();
      java.sql.Date lvSqlDate = null;
      lvCal.set(aiYear, aiMon-1, aiDay,0,0,0);
      lvSqlDate = new java.sql.Date((lvCal.getTime().getTime()/1000)*1000);
      lvCal.clear();
      return lvSqlDate;
  }//end GetSqlDate

  private static String PadDateStr(String asDate, String asSep, int aiYearIndex)
  {
    String lsVal[] = new String[3];
    int liPos = asDate.indexOf(asSep,0);
    lsVal[0]	= asDate.substring(0,liPos);
    lsVal[1]	= asDate.substring(liPos+1,asDate.indexOf(asSep,liPos+1));
    liPos			= asDate.indexOf(asSep,liPos+1);
    lsVal[2]	= asDate.substring(liPos+1,asDate.length());

    for(int i=0;i<3;i++)
    {
      if(i==aiYearIndex)
      {

        if (lsVal[i].length() ==2)
        {
           int liVal=(Integer.valueOf(lsVal[i])).intValue();
           if (liVal > 69  && liVal < 100) lsVal[i]="19"+lsVal[i];
           else  lsVal[i]="20"+lsVal[i];
        }
        else
        {
          lsVal[i]=lsVal[i];
        }
      }
      else
      {
        if (lsVal[i].length()==1) lsVal[i]="0"+lsVal[i];
        else lsVal[i]=lsVal[i];
      }
    }
    return (lsVal[0]+asSep+lsVal[1]+asSep+lsVal[2]);
  }



  /**
  * Returns the maximum value out of three parameters.
  * @Method Name:       MaxVal
  * @version            1.0
  * @author 	          TCS
  * @param              aix value 1
  * @param              aiy value 2
  * @param              aiz value 3
  * @return             returns the maximum value
  * @Version      Author	 		Date			Change Description
  */
  private static int MaxVal(int aix, int aiy,int aiz)
  {
    int liVal1;
    int liMaxVal;
    if(aix > aiy)
    {
      liVal1=aix;
    }
    else
    {
      liVal1=aiy;
    }

    if(liVal1 > aiz)
    {
      liMaxVal=liVal1;
    }
    else
    {
      liMaxVal=aiz;
    }
    return liMaxVal;
  }

  /**
  * Returns the medium value out of three parameters.
  * @Method Name:       MedVal
  * @version            1.0
  * @author 	          TCS
  * @param              aix value 1
  * @param              aiy value 2
  * @param              aiz value 3
  * @return             returns the medium value
  * @Version      Author	 		Date			Change Description
  */
  private static int MedVal(int aix,int aiy,int aiz)
  {
    int liMedVal=0;
    if(aix  > aiy && aix > aiz)
    {
      if(aiy > aiz)
        liMedVal = aiy;
      else
        liMedVal = aiz;
    }

    else if(aix  > aiy && aix < aiz)
    {
        liMedVal = aix;
    }
    else if(aix  < aiy && aix < aiz)
    {
      if(aiy > aiz)
        liMedVal = aiz;
      else
        liMedVal = aiy;
    }
    else if(aix  < aiy && aix > aiz)
    {
        liMedVal = aix;
    }
    return liMedVal;
  }

}