import java.sql.Time;
import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
public class DateUtil {
/**
* getDateStr get a string with format YYYY-MM-DD from a Date object
*
* @param date
* date
* @return String
*/
static public String getDateStr(Date date) {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
return format.format(date);
}
static public String getYear(Date date) {
SimpleDateFormat format = new SimpleDateFormat("yyyy");
return format.format(date);
}
static public String getDateStrC(Date date) {
SimpleDateFormat format = new SimpleDateFormat("yyyy年MM月dd日");
return format.format(date);
}
static public String getDateStrCompact(Date date) {
if (date == null)
return "";
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
String str = format.format(date);
return str;
}
/**
* getDateStr get a string with format YYYY-MM-DD HH:mm:ss from a Date
* object
*
* @param date
* date
* @return String
*/
static public String getDateTimeStr(Date date) {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return format.format(date);
}
static public String getDateTimeStrC(Date date) {
SimpleDateFormat format = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
return format.format(date);
}
public static String getCurDateStr(String pattern) {
SimpleDateFormat format = new SimpleDateFormat(pattern);
return format.format(new Date());
}
/**
* Parses text in 'YYYY-MM-DD' format to produce a date.
*
* @param s
* the text
* @return Date
* @throws ParseException
*/
static public Date parseDate(String s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
return format.parse(s);
}
static public Date parseDateC(String s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy年MM月dd日");
return format.parse(s);
}
/**
* Parses text in 'YYYY-MM-DD' format to produce a date.
*
* @param s
* the text
* @return Date
* @throws ParseException
*/
static public Date parseDateTime(String s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return format.parse(s);
}
static public Date parseDateTimeC(String s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
return format.parse(s);
}
/**
* Parses text in 'HH:mm:ss' format to produce a time.
*
* @param s
* the text
* @return Date
* @throws ParseException
*/
static public Date parseTime(String s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
return format.parse(s);
}
static public Date parseTimeC(String s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("HH时mm分ss秒");
return format.parse(s);
}
static public int yearOfDate(Date s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String d = format.format(s);
return Integer.parseInt(d.substring(0, 4));
}
static public int monthOfDate(Date s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String d = format.format(s);
return Integer.parseInt(d.substring(5, 7));
}
static public int dayOfDate(Date s) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String d = format.format(s);
return Integer.parseInt(d.substring(8, 10));
}
static public String getDateTimeStr(java.sql.Date date, double time) {
int year = date.getYear() + 1900;
int month = date.getMonth() + 1;
int day = date.getDate();
String dateStr = year + "-" + month + "-" + day;
Double d = new Double(time);
String timeStr = String.valueOf(d.intValue()) + ":00:00";
return dateStr + " " + timeStr;
}
/**
* Get the total month from two date.
*
* @param sd
* the start date
* @param ed
* the end date
* @return int month form the start to end date
* @throws ParseException
*/
static public int diffDateM(Date sd, Date ed) throws ParseException {
return (ed.getYear() - sd.getYear()) * 12 + ed.getMonth()
- sd.getMonth() + 1;
}
static public int diffDateD(Date sd, Date ed) throws ParseException {
return Math.round((ed.getTime() - sd.getTime()) / 86400000) + 1;
}
static public int diffDateM(int sym, int eym) throws ParseException {
return (Math.round(eym / 100) - Math.round(sym / 100)) * 12
+ (eym % 100 - sym % 100) + 1;
}
static public java.sql.Date getNextMonthFirstDate(java.sql.Date date)
throws ParseException {
Calendar scalendar = new GregorianCalendar();
scalendar.setTime(date);
scalendar.add(Calendar.MONTH, 1);
scalendar.set(Calendar.DATE, 1);
return new java.sql.Date(scalendar.getTime().getTime());
}
static public java.sql.Date getFrontDateByDayCount(java.sql.Date date,
int dayCount) throws ParseException {
Calendar scalendar = new GregorianCalendar();
scalendar.setTime(date);
scalendar.add(Calendar.DATE, -dayCount);
return new java.sql.Date(scalendar.getTime().getTime());
}
/**
* Get first day of the month.
*
* @param year
* the year
* @param month
* the month
* @return Date first day of the month.
* @throws ParseException
*/
static public Date getFirstDay(String year, String month)
throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
return format.parse(year + "-" + month + "-1");
}
static public Date getFirstDay(int year, int month) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
return format.parse(year + "-" + month + "-1");
}
static public Date getLastDay(String year, String month)
throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
Date date = format.parse(year + "-" + month + "-1");
Calendar scalendar = new GregorianCalendar();
scalendar.setTime(date);
scalendar.add(Calendar.MONTH, 1);
scalendar.add(Calendar.DATE, -1);
date = scalendar.getTime();
return date;
}
static public Date getLastDay(int year, int month) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
Date date = format.parse(year + "-" + month + "-1");
Calendar scalendar = new GregorianCalendar();
scalendar.setTime(date);
scalendar.add(Calendar.MONTH, 1);
scalendar.add(Calendar.DATE, -1);
date = scalendar.getTime();
return date;
}
/**
* getToday get todat string with format YYYY-MM-DD from a Date object
*
* @param date
* date
* @return String
*/
static public String getTodayStr() throws ParseException {
Calendar calendar = Calendar.getInstance();
return getDateStr(calendar.getTime());
}
static public Date getToday() throws ParseException {
return new Date(System.currentTimeMillis());
}
static public String getTodayAndTime() {
return new Timestamp(System.currentTimeMillis()).toString();
}
static public String getTodayC() throws ParseException {
Calendar calendar = Calendar.getInstance();
return getDateStrC(calendar.getTime());
}
static public int getThisYearMonth() throws ParseException {
Date today = Calendar.getInstance().getTime();
return (today.getYear() + 1900) * 100 + today.getMonth() + 1;
}
static public int getYearMonth(Date date) throws ParseException {
return (date.getYear() + 1900) * 100 + date.getMonth() + 1;
}
// 获取相隔月数
static public long getDistinceMonth(String beforedate, String afterdate)
throws ParseException {
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd");
long monthCount = 0;
try {
java.util.Date d1 = d.parse(beforedate);
java.util.Date d2 = d.parse(afterdate);
monthCount = (d2.getYear() - d1.getYear()) * 12 + d2.getMonth()
- d1.getMonth();
// dayCount = (d2.getTime()-d1.getTime())/(30*24*60*60*1000);
} catch (ParseException e) {
System.out.println("Date parse error!");
// throw e;
}
return monthCount;
}
// 获取相隔天数
static public long getDistinceDay(String beforedate, String afterdate)
throws ParseException {
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd");
long dayCount = 0;
try {
java.util.Date d1 = d.parse(beforedate);
java.util.Date d2 = d.parse(afterdate);
dayCount = (d2.getTime() - d1.getTime()) / (24 * 60 * 60 * 1000);
} catch (ParseException e) {
System.out.println("Date parse error!");
// throw e;
}
return dayCount;
}
// 获取相隔天数
static public long getDistinceDay(Date beforedate, Date afterdate)
throws ParseException {
long dayCount = 0;
try {
dayCount = (afterdate.getTime() - beforedate.getTime())
/ (24 * 60 * 60 * 1000);
} catch (Exception e) {
// System.out.println("Date parse error!");
// // throw e;
}
return dayCount;
}
static public long getDistinceDay(java.sql.Date beforedate,
java.sql.Date afterdate) throws ParseException {
long dayCount = 0;
try {
dayCount = (afterdate.getTime() - beforedate.getTime())
/ (24 * 60 * 60 * 1000);
} catch (Exception e) {
// System.out.println("Date parse error!");
// // throw e;
}
return dayCount;
}
// 获取相隔天数
static public long getDistinceDay(String beforedate) throws ParseException {
return getDistinceDay(beforedate, getTodayStr());
}
// 获取相隔时间数
static public long getDistinceTime(String beforeDateTime,
String afterDateTime) throws ParseException {
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
long timeCount = 0;
try {
java.util.Date d1 = d.parse(beforeDateTime);
java.util.Date d2 = d.parse(afterDateTime);
timeCount = (d2.getTime() - d1.getTime()) / (60 * 60 * 1000);
} catch (ParseException e) {
System.out.println("Date parse error!");
throw e;
}
return timeCount;
}
// 获取相隔时间数
static public long getDistinceTime(String beforeDateTime)
throws ParseException {
return getDistinceTime(beforeDateTime, new Timestamp(System
.currentTimeMillis()).toLocaleString());
}
// 获取相隔分钟数
static public long getDistinceMinute(String beforeDateTime,
String afterDateTime) throws ParseException {
SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long timeCount = 0;
try {
java.util.Date d1 = d.parse(beforeDateTime);
java.util.Date d2 = d.parse(afterDateTime);