JAVA时间日期处理类实例

 /** * * 文 件 名: AccountDate.java * * 创建时间: 2008-11-18 * * Email : **@163.com */ import java.text.DecimalFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; public class AccountDate { private static transient int gregorianCutoverYear = 1582; /** 闰年中每月天数 */ private static final int[] DAYS_P_MONTH_LY= {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; /** 非闰年中每月天数 */ private static final int[] DAYS_P_MONTH_CY= {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; /** 代表数组里的年、月、日 */ private static final int Y = 0, M = 1, D = 2; /** * 将代表日期的字符串分割为代表年月日的整形数组 * @param date * @return */ public static int[] splitYMD(String date){ date = date.replace("-", ""); int[] ymd = {0, 0, 0}; ymd[Y] = Integer.parseInt(date.substring(0, 4)); ymd[M] = Integer.parseInt(date.substring(4, 6)); ymd[D] = Integer.parseInt(date.substring(6, 8)); return ymd; } /** * 检查传入的参数代表的年份是否为闰年 * @param year * @return */ public static boolean isLeapYear(int year) { return year >= gregorianCutoverYear ? ((year%4 == 0) && ((year%100 != 0) || (year%400 == 0))) : (year%4 == 0); } /** * 日期加1天 * @param year * @param month * @param day * @return */ private static int[] addOneDay(int year, int month, int day){ if(isLeapYear( year )){ day++; if( day > DAYS_P_MONTH_LY[month -1 ] ){ month++; if(month > 12){ year++; month = 1; } day = 1; } }else{ day++; if( day > DAYS_P_MONTH_CY[month -1 ] ){ month++; if(month > 12){ year++; month = 1; } day = 1; } } int[] ymd = {year, month, day}; return ymd; } /** * 将不足两位的月份或日期补足为两位 * @param decimal * @return */ public static String formatMonthDay(int decimal){ DecimalFormat df = new DecimalFormat("00"); return df.format( decimal ); } /** * 将不足四位的年份补足为四位 * @param decimal * @return */ public static String formatYear(int decimal){ DecimalFormat df = new DecimalFormat("0000"); return df.format( decimal ); } /** * 计算两个日期之间相隔的天数 * @param begin * @param end * @return * @throws ParseException */ public static long countDay(String begin,String end){ SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date beginDate , endDate; long day = 0; try { beginDate= format.parse(begin); endDate= format.parse(end); day=(endDate.getTime()-beginDate.getTime())/(24*60*60*1000); } catch (ParseException e) { e.printStackTrace(); } return day; } /** * 以循环的方式计算日期 * @param beginDate endDate * @param days * @return */ public static List getEveryday(String beginDate , String endDate){ long days = countDay(beginDate, endDate); int[] ymd = splitYMD( beginDate ); List everyDays = new ArrayList(); everyDays.add(beginDate); for(int i = 0; i  list = AccountDate.getEveryday("2008-08-29", "2008-09-02"); for (String result : list) { System.out.println(result); } } }