日期 处 理

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.bolink;

import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 *
 * @author bolink
 */
public final class TDateTime implements java.io.Serializable, Comparable {
private final static int[] full_day_month = new int[] { 1, 3, 5, 7, 8, 10,12 };

/**
* The year of the gregorianCutover, with 0 representing 1 BC, -1
* representing 2 BC, etc.
*/
private static transient int gregorianCutoverYear = 1582;

private final static int[] normal_day_month = new int[] { 4, 6, 9, 11};

public final static int QUARTER_OF_FIRST = 1;

public final static int QUARTER_OF_FOURTH = 4;

public final static int QUARTER_OF_SECOND = 2;

public final static int QUARTER_OF_THIRD = 3;

/**
*
*/
private static final long serialVersionUID = 1574586998788149344L;

/**
* 当前日期时间。
*
* @return
*/
public static TDateTime CurrentDateTime() {
  return new TDateTime();
}

/**
* 取得某年月最大日。
*
* @param y
* @param m
* @return
*/
public static int getMaxDay(int y, int m) {
if (isLeapNormalMonth(y, m))
return 29;
else if (isNormalMonth(y, m))
return 28;
else if (isSmallMonth(m))
return 30;
else
return 31;
}

/**
* 是否为大月
*
* @param m
* @return
*/
public static boolean isBigMonth(int m) {
for (int i = 0; i < full_day_month.length; i++) {
if (m == full_day_month[i])
return true;
}
return false;
}

/**
* 是否为闰平月
*
* @param year
* @param month
* @return
*/
public static boolean isLeapNormalMonth(int y, int m) {
return isleapyear(y) && m == 2;
}

/**
* 是否闰年。
*
* @param y
* @return
*/
public static boolean isleapyear(int y) {
return y >= gregorianCutoverYear ? ((y % 4 == 0) && ((y % 100 != 0) || (y % 400 == 0))): (y % 4 == 0); // Julian
}

/**
* 是否为普通平月
*
* @param year
* @param month
* @return
*/
public static boolean isNormalMonth(int y, int m) {
return !isleapyear(y) && m == 2;
}

/**
* 是否为小月
*
* @param m
* @return
*/
public static boolean isSmallMonth(int m) {
for (int i = 0; i < normal_day_month.length; i++) {
if (m == normal_day_month[i])
 return true;
}
return false;
}

public static void main(String[] args) throws Exception {
// System.out.println(CastType.dtparse("2005-3-3 00:00:00"));
TDateTime tdt1 = new TDateTime("2005-3-32 10:00:00");
TDateTime tdt2 = new TDateTime("2005-4-1 11:00:00");
// TDateTime tdt1 = new TDateTime(2000, 2, 3, 4, 5, 6, 7);
System.out.println(tdt1);
System.out.println(tdt2);
System.out.println(tdt1.getDayDistance(tdt2));
System.out.println(tdt1);
System.out.println(tdt2);
}

private Calendar cal = null;

private Date dt = null;

private Timestamp ts = null;

public TDateTime() {
cal = Calendar.getInstance();
dt = cal.getTime();
ts = new Timestamp(cal.getTimeInMillis());
}

public TDateTime(Calendar cal) {
 init(cal);
}

public TDateTime(Date dt) {
 init(dt);
}

public TDateTime(int year) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
init(cal);
}

public TDateTime(int year, int month) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month - 1);
init(cal);
}

public TDateTime(int year, int month, int day) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month - 1);
cal.set(Calendar.DATE, day);
init(cal);
}

public TDateTime(int year, int month, int day, int hour) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month - 1);
cal.set(Calendar.DATE, day);
cal.set(Calendar.HOUR_OF_DAY, hour);
init(cal);
}

public TDateTime(int year, int month, int day, int hour, int minute) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month - 1);
cal.set(Calendar.DATE, day);
cal.set(Calendar.HOUR_OF_DAY, hour);
cal.set(Calendar.MINUTE, minute);
init(cal);
}

public TDateTime(int year, int month, int day, int hour, int minute,
int second) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month - 1);
cal.set(Calendar.DATE, day);
cal.set(Calendar.HOUR_OF_DAY, hour);
cal.set(Calendar.MINUTE, minute);
cal.set(Calendar.SECOND, second);
init(cal);
}

public TDateTime(int year, int month, int day, int hour, int minute,int second, int millisecond) {
cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month - 1);
cal.set(Calendar.DATE, day);
cal.set(Calendar.HOUR_OF_DAY, hour);
cal.set(Calendar.MINUTE, minute);
cal.set(Calendar.SECOND, second);
cal.set(Calendar.MILLISECOND, millisecond);
init(cal);
}

public TDateTime(String value) throws Exception {
 //  this(CastType.dtparse(value));
}

public TDateTime(TDateTime tdt) {
cal = (Calendar) tdt.cal.clone();
init(cal);
}

public TDateTime(Timestamp ts) {
init(ts);
}

/**
* 增加日期。
*
* @param add
*/
public void addDay(int add) {
cal.add(Calendar.DATE, add);
init(cal);
}

/**
* 增加小时。
*
* @param add
*/
public void addHour(int add) {
cal.add(Calendar.HOUR_OF_DAY, add);
init(cal);
}

/**
* 增加毫秒。
*
* @param add
*/
public void addMillisecond(int add) {
cal.add(Calendar.MILLISECOND, add);
init(cal);
}

/**
* 增加分钟。
*
* @param add
*/
public void addMinute(int add) {
cal.add(Calendar.MINUTE, add);
init(cal);
}

/**
* 增加月。
*
* @param add
*/
public void addMonth(int add) {
cal.add(Calendar.MONTH, add);
init(cal);
}

/**
* 增加秒。
*
* @param add
*/
public void addSecond(int add) {
cal.add(Calendar.SECOND, add);
init(cal);
}

/**
* 增加年份。
*
* @param add
*/
public void addYear(int add) {
cal.add(Calendar.YEAR, add);
init(cal);
}

/*
* (non-Javadoc)
*
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
public int compareTo(Object o) {
 if (o == null) {
  return 1;
 }
if (o instanceof TDateTime) {
return compareTo((TDateTime) o);
}
 //日期没发比较
//throw new Exception("can't compare TDateTime with "+ o.getClass());
 return 0;
}

public int compareTo(TDateTime tdt) {
if (tdt == null) {
return 1;
}
return dt.compareTo(tdt.dt);
}

/**
* 取得Calendar数据。
*
* @return
*/
public Calendar getCalendar() {
return cal;
}

/**
* 取得Date数据。
*
* @return
*/
public Date getDate() {
return dt;
}

/**
* 取得日期。
*
* @return Returns the day.
*/
public int getDay() {
return cal.get(Calendar.DATE);
}

/**
* 取得两个日期相隔天数。 <br>
* 如果比参数日大，返回正数，否则如果小，返回负数，否则返回零。
*
* @param tdt
* @return
*/
public int getDayDistance(TDateTime tdt) {
tdt = new TDateTime(tdt);
TDateTime clone = new TDateTime(this);
clone.setHour(0);
clone.setMinute(0);
clone.setSecond(0);
clone.setMillisecond(0);
tdt.setHour(0);
tdt.setMinute(0);
tdt.setSecond(0);
tdt.setMillisecond(0);

int day = 0;
if (clone.compareTo(tdt) > 0) {
while (clone.compareTo(tdt) > 0) {
day++;
clone.addDay(-1);
}
} else {
while (clone.compareTo(tdt) < 0) {
day--;
clone.addDay(1);
}
}
return day;
}

/**
* 取得小时。
*
* @return Returns the hour.
*/
public int getHour() {
return cal.get(Calendar.HOUR_OF_DAY);
}

/**
* 取得本月最大天数。
*
* @return
*/
public int getMaxDay() {
return getMaxDay(getYear(), getMonth());
}

/**
* 取得毫秒。
*
* @return Returns the millisecond.
*/
public int getMillisecond() {
return cal.get(Calendar.MILLISECOND);
}

/**
* 取得分钟。
*
* @return Returns the minute.
*/
public int getMinute() {
return cal.get(Calendar.MINUTE);
}

/**
* 取得月份。
*
* @return Returns the month.
*/
public int getMonth() {
return cal.get(Calendar.MONTH) + 1;
}

/**
* 取得季节。
*
* @return
*/
public int getQuarter() {
int month = getMonth();
switch (month) {
case 1:
case 2:
case 3:
return TDateTime.QUARTER_OF_FIRST;
case 4:
case 5:
case 6:
return TDateTime.QUARTER_OF_SECOND;
case 7:
case 8:
case 9:
return TDateTime.QUARTER_OF_THIRD;
case 10:
case 11:
case 12:
return TDateTime.QUARTER_OF_FOURTH;
}
//抛出月份出错
//throw new UnknowRuntimeException("month is error");
 return 0;
}

/**
* 取得秒。
*
* @return Returns the second.
*/
public int getSecond() {
return cal.get(Calendar.SECOND);
}

/**
* 获得Timestamp类型数据。
*
* @return
*/
public Timestamp getTimestamp() {
  return ts;
}

/**
* 取得年。
*
* @return Returns the year.
*/
public int getYear() {
return cal.get(Calendar.YEAR);
}

/**
* @param c
*/
private void init(Calendar c) {
cal = c;
dt = cal.getTime();
ts = new Timestamp(cal.getTimeInMillis());
}

/**
* @param d
*/
private void init(Date d) {
dt = d;
ts = new Timestamp(d.getTime());
cal = Calendar.getInstance();
cal.setTimeInMillis(ts.getTime());
}

/**
* @param t
*/
private void init(Timestamp t) {
ts = t;
cal = Calendar.getInstance();
cal.setTimeInMillis(ts.getTime());
dt = cal.getTime();
}

/**
* 设置日期。
*
* @param day
*            The day to set.
*/
public void setDay(int day) {
cal.set(Calendar.DATE, day);
init(cal);
}

/**
* 设置小时。
*
* @param hour
*            The hour to set.
*/
public void setHour(int hour) {
cal.set(Calendar.HOUR_OF_DAY, hour);
init(cal);
}

/**
* 设置毫秒。
*
* @param millisecond
*            The millisecond to set.
*/
public void setMillisecond(int millisecond) {
cal.set(Calendar.MILLISECOND, millisecond);
init(cal);
}

/**
* 设置分钟。
*
* @param minute
*            The minute to set.
*/
public void setMinute(int minute) {
cal.set(Calendar.MINUTE, minute);
init(cal);
}

/**
* 设置月份。
*
* @param month
*            The month to set.
*/
public void setMonth(int month) {
cal.set(Calendar.MONTH, month - 1);
init(cal);
}

/**
* 设置秒。
*
* @param second
*            The second to set.
*/
public void setSecond(int second) {
cal.set(Calendar.SECOND, second);
init(cal);
}

/**
* 设置年。
*
* @param year
*            The year to set.
*/
public void setYear(int year) {
cal.set(Calendar.YEAR, year);
init(cal);
}

/**
* 返回日期串。
*
* @return
*/
public String toDateString() {
return toString("yyyy-MM-dd");
}

/**
* 返回日期时间串
*
* @return
*/
public String toDateTimeString() {
return toString("yyyy-MM-dd HH:mm:ss.SSS");
}

/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("TDateTime");
sb.append("[");
sb.append(getTimestamp());
sb.append("]");
sb.append("[");
sb.append("Year:");
sb.append(getYear());
sb.append(",");
sb.append("Month:");
sb.append(getMonth());
sb.append(",");
sb.append("Day:");
sb.append(getDay());
sb.append(",");
sb.append("Hour:");
sb.append(getHour());
sb.append(",");
sb.append("Minute:");
sb.append(getMinute());
sb.append(",");
sb.append("Second:");
sb.append(getSecond());
sb.append(",");
sb.append("MilliSecond:");
sb.append(getMillisecond());
sb.append("]");
return sb.toString();
}
public String toString(String parttern) {
SimpleDateFormat sdf = new SimpleDateFormat(parttern);
return sdf.format(dt);
}

/**
* 返回短时间类型。
*
* @return
*/
public String toShortTimeString() {
return toString("HH:mm");
}

/**
* 返回时间串。
*
* @return
*/
public String toTimeString() {
  return toString("HH:mm:ss.SSS");
 }
 
}