Mega Code Archive
Format data to string with specified style
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//package org.nestframework.commons.utils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class DateUtil {
public static long dateToLong(Date date) {
return date.getTime();
}
public static Date longToDate(long longdata) {
return new Date(longdata);
}
/**
* Format data to string with specified style.
*
* @param dtmDate
* Date
* @param num
* style. 1:YYYY.MM.DD 2:hh:mm:ss 3:YYYY.MM.DD HH:MM:ss
* 4:YYYY-MM-DD 5:YYYY 6:MM 7:DD
* @return dateString String
*/
public static String dateToStr(java.util.Date dtmDate, int num) {
if (dtmDate == null)
return "";
String f;
switch (num) {
case 1:
f = "yyyy.MM.dd";
break;
case 2:
f = "kk:mm:ss";
break;
case 3:
f = "yyyy.MM.dd kk:mm:ss";
break;
case 4:
f = "yyyy-MM-dd";
break;
case 5:
f = "yyyy";
break;
case 6:
f = "MM";
break;
case 7:
f = "dd";
break;
default:
f = "yyyy.MM.dd kk:mm:ss";
}
SimpleDateFormat sdf = new SimpleDateFormat(f);
String dateString = sdf.format(dtmDate);
return dateString;
}
/**
* Format data to string.
*
* @param dtmDate
* Date
* @param formatstr
* format
* @return dateString String
*/
public static String dateToStr(java.util.Date dtmDate, String formatstr) {
SimpleDateFormat sdf = new SimpleDateFormat(formatstr);
String dateString = sdf.format(dtmDate);
return dateString;
}
/**
* Normal data format.
*
* @return String[]
*/
private static String[] getdateformat() {
String[] formatstring = { "yyyy-MM-dd", "yyyy/MM/dd", "yyyy.MM.dd" };
return formatstring;
}
/**
* Parse String to Date.
*
* @param dateString
* String of Date, the format is yyyy-MM-dd or yyyy/MM/dd or
* yyyy.MM.dd
* @return Date
* @throws ParseException
*/
public static Date stringToDate(String dateString) throws ParseException {
String[] formatstring = getdateformat();
int index = 0;
Date parseDate = null;
ParseException throwe = null;
SimpleDateFormat sdf = new SimpleDateFormat();
while (formatstring != null && index < formatstring.length) {
try {
sdf.applyPattern(formatstring[index]);
index++;
parseDate = sdf.parse(dateString);
break;
} catch (ParseException gete) {
throwe = gete;
continue;
}
}
if (parseDate == null)
throw throwe;
return parseDate;
}
}
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