package com.gxy.atm.util;
import java.text.DateFormat;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
/**
* 常用日历操作辅助类
*
* @author steven 2010-08-10
* @email:qing.tan@iwode.com
*/
public class CalendarUtil {
private int weeks = 0;// 用来全局控制 上一周,本周,下一周的周数变化
private int MaxDate; // 一月最大天数
private int MaxYear; // 一年最大天数
/**
* 测试
*
* @param args
*/
public static void main(String[] args) {
CalendarUtil tt = new CalendarUtil();
System.out.println("获取当天日期:" + tt.getNowTime("yyyy-MM-dd"));
System.out.println("获取本周一日期:" + tt.getMondayOFWeek());
System.out.println("获取本周日的日期~:" + tt.getCurrentWeekday());
System.out.println("获取上周一日期:" + tt.getPreviousWeekday());
System.out.println("获取上周日日期:" + tt.getPreviousWeekSunday());
System.out.println("获取下周一日期:" + tt.getNextMonday());
System.out.println("获取下周日日期:" + tt.getNextSunday());
System.out.println("获得相应周的周六的日期:" + tt.getNowTime("yyyy-MM-dd"));
System.out.println("获取本月第一天日期:" + tt.getFirstDayOfMonth());
System.out.println("获取本月最后一天日期:" + tt.getDefaultDay());
System.out.println("获取上月第一天日期:" + tt.getPreviousMonthFirst());
System.out.println("获取上月最后一天的日期:" + tt.getPreviousMonthEnd());
System.out.println("获取下月第一天日期:" + tt.getNextMonthFirst());
System.out.println("获取下月最后一天日期:" + tt.getNextMonthEnd());
System.out.println("获取本年的第一天日期:" + tt.getCurrentYearFirst());
System.out.println("获取本年最后一天日期:" + tt.getCurrentYearEnd());
System.out.println("获取去年的第一天日期:" + tt.getPreviousYearFirst());
System.out.println("获取去年的最后一天日期:" + tt.getPreviousYearEnd());
System.out.println("获取明年第一天日期:" + tt.getNextYearFirst());
System.out.println("获取明年最后一天日期:" + tt.getNextYearEnd());
System.out.println("获取本季度第一天:" + tt.getThisSeasonFirstTime(11));
System.out.println("获取本季度最后一天:" + tt.getThisSeasonFinallyTime(11));
System.out.println("获取两个日期之间间隔天数2008-12-1~2008-29:"
+ CalendarUtil.getTwoDay("2008-12-1", "2008-9-29"));
System.out.println("获取当前月的第几周:" + tt.getWeekOfMonth());
System.out.println("获取当前年份:" + tt.getYear());
System.out.println("获取当前月份:" + tt.getMonth());
System.out.println("获取今天在本年的第几天:" + tt.getDayOfYear());
System.out.println("获得今天在本月的第几天(获得当前日):" + tt.getDayOfMonth());
System.out.println("获得今天在本周的第几天:" + tt.getDayOfWeek());
System.out.println("获得半年后的日期:"
+ tt.convertDateToString(tt.getTimeYearNext()));
}
/**
* 获得当前年份
*
* @return
*/
public static int getYear() {
return Calendar.getInstance().get(Calendar.YEAR);
}
/**
* 获得当前月份
*
* @return
*/
public static int getMonth() {
return Calendar.getInstance().get(Calendar.MONTH) + 1;
}
/**
* 获得今天在本年的第几天
*
* @return
*/
public static int getDayOfYear() {
return Calendar.getInstance().get(Calendar.DAY_OF_YEAR);
}
/**
* 获得今天在本月的第几天(获得当前日)
*
* @return
*/
public static int getDayOfMonth() {
return Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
}
/**
* 获得今天在本周的第几天
*
* @return
*/
public static int getDayOfWeek() {
return Calendar.getInstance().get(Calendar.DAY_OF_WEEK);
}
/**
* 获得今天是这个月的第几周
*
* @return
*/
public static int getWeekOfMonth() {
return Calendar.getInstance().get(Calendar.DAY_OF_WEEK_IN_MONTH);
}
/**
* 获得半年后的日期
*
* @return
*/
public static Date getTimeYearNext() {
Calendar.getInstance().add(Calendar.DAY_OF_YEAR, 183);
return Calendar.getInstance().getTime();
}
/**
* 将日期转换成字符串
*
* @param dateTime
* @return
*/
public static String convertDateToString(Date dateTime) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
return df.format(dateTime);
}
/**
* 得到二个日期间的间隔天数
*
* @param sj1
* @param sj2
* @return
*/
public static String getTwoDay(String sj1, String sj2) {
SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
long day = 0;
try {
Date date = myFormatter.parse(sj1);
Date mydate = myFormatter.parse(sj2);
day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
} catch (Exception e) {
return "";
}
return day + "";
}
/**
* 根据一个日期,返回是星期几的字符串
*
* @param sdate
* @return
*/
public static String getWeek(String sdate) {
// 再转换为时间
Date date = CalendarUtil.strToDate(sdate);
Calendar c = Calendar.getInstance();
c.setTime(date);
// int hour=c.get(Calendar.DAY_OF_WEEK);
// hour中存的就是星期几了,其范围 1~7
// 1=星期日 7=星期六,其他类推
return new SimpleDateFormat("EEEE").format(c.getTime());
}
/**
* 将短时间格式字符串转换为时间 yyyy-MM-dd
*
* @param strDate
* @return
*/
public static Date strToDate(String strDate) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
/**
* 两个时间之间的天数
*
* @param date1
* @param date2
* @return
*/
public static long getDays(String date1, String date2) {
if (date1 == null || date1.equals(""))
return 0;
if (date2 == null || date2.equals(""))
return 0;
// 转换为标准时间
SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
Date date = null;
Date mydate = null;
try {
date = myFormatter.parse(date1);
mydate = myFormatter.parse(date2);
} catch (Exception e) {
}
long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
return day;
}
/**
* 计算当月最后一天,返回字符串
*
* @return
*/
public String getDefaultDay() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getInstance();
lastDate.set(Calendar.DATE, 1);// 设为当前月的1号
lastDate.add(Calendar.MONTH, 1);// 加一个月,变为下月的1号
lastDate.add(Calendar.DATE, -1);// 减去一天,变为当月最后一天
str = sdf.format(lastDate.getTime());
return str;
}
/**
* 上月第一天
*
* @return
*/
public String getPreviousMonthFirst() {
String str = "";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar lastDate = Calendar.getIn
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