日期处理类

<pre name="code" class="html">import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import org.apache.commons.lang3.time.DateUtils;
import com.google.common.primitives.UnsignedBytes;
import com.lz.cts.common.errorcode.CtsErrorCode;
import com.lz.ctsframework.core.support.ServiceException;
/**
*
* <b>类说明：</b>日期工具类
*
* <p>
* <b>详细描述：</b>
*
* @author liuhuanchao
* @since  2016-04-18
*/
public class CtsDateUtil {

public final static String DATE_FROMAT = "yyyyMMdd";

public final static String TIME_FORMAT = "HHmmss";

/**
* 两个日期是否在跨度之内
*
* @param startDate
* @param endDate
* @param gapType
*            跨度类型，如Calendar.YEAR,Calendar.MONTH,Calendar.DAY_OF_YEAR
* @param maxGap
*            最大跨度值
* @return
*/
public static boolean isWithInDateGap(Date startDate, Date endDate,
int gapType, int maxGap) {
if (startDate == null) {
throw new IllegalArgumentException("The startDate must not be null");
}
if (endDate == null) {
throw new IllegalArgumentException("The endDate must not be null");
}
if (gapType != Calendar.YEAR && gapType != Calendar.MONTH
&& gapType != Calendar.DAY_OF_YEAR) {
throw new IllegalArgumentException(
"The value of gapType is invalid");
}

Calendar start = Calendar.getInstance();
start.setTime(startDate);
start.add(gapType, maxGap);
int compare = start.getTime().compareTo(endDate);

return compare >= 0;
}

/**
* 两个日期是否在跨度之内
*
* @param startDate
* @param endDate
* @param gapType
*            跨度类型，如Calendar.YEAR,Calendar.MONTH,Calendar.DAY_OF_YEAR
* @param maxGap
*            最大跨度值
* @return
* @throws ParseException
*/
public static boolean isWithInDateGap(String startDate, String endDate,
int gapType, int maxGap){
Date startDateTime = null;
Date endDateTime = null;
try{
startDateTime = DateUtils.parseDate(startDate, DATE_FROMAT);
endDateTime = DateUtils.parseDate(endDate, DATE_FROMAT);
}catch(ParseException e){
throw new ServiceException（*****,new String[]{"交易日期"}, "开始日期：" + startDate + ",结束日期：" + endDate);
}

return isWithInDateGap(startDateTime,endDateTime, gapType, maxGap);
}

/**
* 两个日期是否在跨度之内
*
* @param startDate
* @param endDate
* @param gapType
*            跨度类型，如Calendar.YEAR,Calendar.MONTH,Calendar.DAY_OF_YEAR
* @param maxGap
*            最大跨度值
* @return
* @throws ParseException
*/
public static boolean isWithInDateGap(int startDate, int endDate,
int gapType, int maxGap) throws ParseException {
return isWithInDateGap(
DateUtils.parseDate(String.valueOf(startDate), DATE_FROMAT),
DateUtils.parseDate(String.valueOf(endDate), DATE_FROMAT),
gapType, maxGap);
}

/**
* <b>说明:</b> 获取系统当前日期
*
* @param
* @return
* @
* @author ****
* @since 2014年5月22日
*/
public static int getCurIntPcDate()  {
return Integer.parseInt(getCurPcDate());
}

/**
* <b>说明:</b> 获取系统当前日期
*
* @param
* @return
* @
* @author ****
* @since ****
*/
public static String getCurPcDate() {
java.util.Date currentDate = new java.util.Date();
SimpleDateFormat formatdate = new SimpleDateFormat(DATE_FROMAT);
return formatdate.format(currentDate);
}

/***
* <b>说明:</b> 获取指定格式的系统当前日期
* @param
* @return
* @
* @author ****
* @since ****
*/
public static String getCurPcDate(String strFormat)
{
java.util.Date currentDate = new java.util.Date();
SimpleDateFormat formatdate = new SimpleDateFormat(strFormat);
return formatdate.format(currentDate);
}

/***
* <b>说明:</b>  获取当时系统日期时间【YYYYMMDDHHmmss】
* @param
* @return
* @throws ServiceException
* @author yanfy
* @since 2014年6月5日
*/
public static String getCurPcDateTime()
{
java.util.Date currentDate = new java.util.Date();
SimpleDateFormat formatdate = new SimpleDateFormat(DATE_FROMAT+TIME_FORMAT);
return formatdate.format(currentDate);
}

/**
* <b>说明:</b> 获取当时系统日期时间【YYYYMMDDHHmmss】
* @param
* @return
* @author ****
* @since 2014年6月5日
*/
public static Long getIntCurPcDateTime()
{
return Long.valueOf(getCurPcDateTime());
}

/**
* <b>说明:</b> 获取系统当前时间
*
* @param
* @return 当前时间并格式化成“HHmmss”,如“123124”
* @
* @author ****
* @since ****
*/
public static String getCurPcTime()  {
java.util.Date currentDate = new java.util.Date();
SimpleDateFormat formatdate = new SimpleDateFormat(TIME_FORMAT);
return formatdate.format(currentDate);
}

/**
* <b>说明: </b>验证传入数值型日期[YYYYMMDD]是否合法
*
* @param
* @return
* @
* @author ****
* @return
* @since *****
*/
public static boolean checkDateFormat(int intDate) {
return checkDateFormat(String.valueOf(intDate));
}

/**
* <b>说明: </b>验证传入字符型日期[YYYYMMDD]是否合法
*
* @param
* @return
* @
* @author ****
* @since ****
*/
public static boolean checkDateFormat(String strDate) {
return checkDateFormat(strDate, DATE_FROMAT);
}

/**
* <b>说明: </b>验证传入字符型日期是否合法
*
* @param
* @return
* @
* @author ***
* @since ****
*/
public static boolean checkDateFormat(int intDate, String strFormat) {
return checkDateFormat(String.valueOf(intDate), DATE_FROMAT);
}

/**
* <b>说明: </b>验证传入字符型日期是否合法
*
* @param
* @return
* @
* @author ****
* @since ***
*/
public static boolean checkDateFormat(String strDate, String strFormat)
{
try {
DateUtils.parseDateStrictly(strDate, strFormat);
return true;
} catch (ParseException e) {
return false;
}
}

/**
* <b>说明: </b>验证传入数值型时间[HH24MMSS]是否合法
*
* @param
* @return
* @
* @author ****
* @return
* @since ****
*/
public static boolean checkTimeFormat(int intDate) {
String strDate = String.valueOf(intDate);
if(strDate.length() <6)
strDate = CommUtil.LeftFill(strDate, '0', 6);
System.out.println("curTime:"+strDate);
return checkTimeFormat(strDate);
}

/**
* <b>说明: </b>验证传入字符型时间[HH24MMSS]是否合法
*
* @param
* @return
* @
* @author ****
* @since ****
*/
public static boolean checkTimeFormat(String strDate) {
return checkTimeFormat(strDate, TIME_FORMAT);
}

/**
* <b>说明: </b>验证传入字符型时间是否合法
*
* @param
* @return
* @
* @author ****
* @since ****
*/
public static boolean checkTimeFormat(int intDate, String strFormat) {
return checkTimeFormat(String.valueOf(intDate), DATE_FROMAT);
}

/**
* <b>说明: </b>验证传入字符型时间是否合法
*
* @param
* @return
* @
* @author ****
* @since ***
*/
public static boolean checkTimeFormat(String strDate, String strFormat){
try {
DateUtils.parseDateStrictly(strDate, strFormat);
return true;
} catch (ParseException e) {
return false;
}
}

/**
* <b>说明: </b>日期转换
* @param strDate
* @return
*/
public static Date parseDate(String strDate){
return parseDate(strDate, DATE_FROMAT);
}
/**
* <b>说明: </b>日期转换
* @param strDate
* @param strFormat
* @return
*/
public static Date parseDate(String strDate,String strFormat){
try {
return DateUtils.parseDateStrictly(strDate, strFormat);
} catch (ParseException e) {
throw new ServiceException(CtsErrorCode.ERROR_FORMAT,new String[]{"交易日期"}, "日期：" + strDate);
}
}
/**
* <b>说明: </b>日期转换
* @param intDate
* @param strFormat
* @return
*/
public static Date parseDate(int intDate,String strFormat){
return parseDate(String.valueOf(intDate), strFormat);
}
/**
* <b>说明: </b>日期转换
* @param intDate
* @return
*/
public static Date parseDate(int intDate){
return parseDate(String.valueOf(intDate));
}

/**
* 日期转换成字符串
* @param date
* @param dateFormat
* @return
*/
public static String date2String(Date date,String dateFormat) {
SimpleDateFormat formatdate = new SimpleDateFormat(dateFormat);
return formatdate.format(date);
}
/**
* 日期转换成字符串
* @param date
* @param dateFormat
* @return 格式为YYYYMMDD
*/
public static String date2String(Date date) {
return date2String(date,DATE_FROMAT);
}

/**
* 日期转换成整数
* @param date
* @param dateFormat
* @return 格式为YYYYMMDD
*/
public static int date2Int(Date date) {
String str = date2String(date,DATE_FROMAT);
return Integer.parseInt(str);
}

/***
* <b>说明:</b>
* @param
* @return
* @throws ServiceException
* @author ****
* @since ***
*/
public static String getCurrLastDay()
{
return getCurrAfterDay(1);
}
/***
* <b>说明:</b>
* @param
* @return
* @throws ServiceException
* @author ****
* @since ****
*/
public static String getCurrAfterDay(int days)
{
Calendar theCa = Calendar.getInstance();
theCa.setTime(new Date());
theCa.add(theCa.DATE, -1*days);
Date date = theCa.getTime();
SimpleDateFormat formatdate = new SimpleDateFormat(DATE_FROMAT);
return formatdate.format(date);
}
/**
* 获取交易日期之前的相隔天数的日期
* @param transDate 交易日期
* @param days 天数
* @return
* @author ****
* @since ***
*/
public static Integer getTransDateBeforeDay(Integer transDate,int days){

Calendar theCa = Calendar.getInstance();
theCa.setTime(parseDate(transDate));
theCa.add(Calendar.DATE, -1*days);
Date date = theCa.getTime();
SimpleDateFormat formatdate = new SimpleDateFormat(DATE_FROMAT);
return Integer.valueOf(formatdate.format(date));
}

/**
* 获取指定日期之后的相隔n年的日期
* @param transDate
* @param years
* @return
* @return Integer
*/
public static Integer getDateAfterYear(Integer transDate, int years) {
Calendar theCa = Calendar.getInstance();
theCa.setTime(parseDate(transDate));
theCa.add(Calendar.YEAR, years);
Date date = theCa.getTime();
SimpleDateFormat formatdate = new SimpleDateFormat(DATE_FROMAT);
return Integer.valueOf(formatdate.format(date));
}

/**
* 获取交易日期之后的相隔天数的日期
* @param transDate 交易日期
* @param days 天数
* @return
* @author ****
* @since ****
*/
public static Integer getTransDateAfterDay(Integer transDate,int days){

Calendar theCa = Calendar.getInstance();
theCa.setTime(parseDate(transDate));
theCa.add(Calendar.DATE, 1*days);
Date date = theCa.getTime();
SimpleDateFormat formatdate = new SimpleDateFormat(DATE_FROMAT);
return Integer.valueOf(formatdate.format(date));
}

/**
* 计算两个日期相差的天数
* @param beginDate 【YYYYMMDD】
* @param endDate  【YYYYMMDD】
* @return Integer
* @author ****
* @since ****
*/
public static Integer diffDate(Integer beginDate,Integer endDate){
Calendar theCa1= Calendar.getInstance();
Calendar theCa2= Calendar.getInstance();
theCa1.setTime(parseDate(beginDate));
theCa2.setTime(parseDate(endDate));
long between_days=(theCa2.getTimeInMillis()-theCa1.getTimeInMillis())/(1000*3600*24);
return Integer.parseInt(String.valueOf(between_days));
}

}