Spring+SpringMVC+Mybatis框架整合

package com.wechat.util; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; public class DateUtil { private final static SimpleDateFormat sdfYear = new SimpleDateFormat("yyyy"); private final static SimpleDateFormat sdfDay = new SimpleDateFormat("yyyy-MM-dd"); private final static SimpleDateFormat sdfDays = new SimpleDateFormat("yyyyMMdd"); private final static SimpleDateFormat sdfTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); /** * 获取YYYY格式 * * @return */ public static String getYear() { return sdfYear.format(new Date()); } /** * 获取YYYY-MM-DD格式 * * @return */ public static String getDay() { return sdfDay.format(new Date()); } /** * 获取YYYY-MM-DD格式 * * @return */ public static String getDay(Date date) { return sdfDay.format(date); } /** * 获取YYYYMMDD格式 * * @return */ public static String getDays() { return sdfDays.format(new Date()); } /** * 获取YYYY-MM-DD HH:mm:ss格式 * * @return */ public static String getTime() { return sdfTime.format(new Date()); } /** * @Title: compareDate * @Description: TODO(日期比较，如果s>=e 返回true 否则返回false) * @param s * @param e * @return boolean * @throws @author * luguosui */ public static boolean compareDate(String s, String e) { if (fomatDate(s) == null || fomatDate(e) == null) { return false; } return fomatDate(s).getTime() >= fomatDate(e).getTime(); } /** * 格式化日期 * * @return */ public static Date fomatDate(String date) { DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd"); try { return fmt.parse(date); } catch (ParseException e) { e.printStackTrace(); return null; } } /** * @Title: subTime @Description: TODO(时间相减) @param s @param e @return * Long @throws */ public static Long subTime(String s, String e) { if (fomatTime(s) == null || fomatTime(e) == null) { return null; } return fomatTime(s).getTime() - fomatTime(e).getTime(); } /** * 获取min分钟后的时间 * * @param min * @return */ public static String getAfterMinTime(String min) { int minInt = Integer.parseInt(min); Calendar canlendar = Calendar.getInstance(); // java.util包 canlendar.add(Calendar.MINUTE, minInt); Date date = canlendar.getTime(); String str = sdfTime.format(date); return str; } /** * @Title: compareTime @Description: TODO(日期时间比较，如果s>=e 返回true * 否则返回false) @param s @param e @return boolean @throws */ public static boolean compareTime(String s, String e) { if (fomatTime(s) == null || fomatTime(e) == null) { return false; } return fomatTime(s).getTime() >= fomatTime(e).getTime(); } /** * 格式化时间 * * @return */ public static Date fomatTime(String date) { DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); try { if (date == null) { return null; } else { return fmt.parse(date); } } catch (ParseException e) { e.printStackTrace(); return null; } } /** * 校验日期是否合法 * * @return */ public static boolean isValidDate(String s) { DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd"); try { fmt.parse(s); return true; } catch (Exception e) { // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对 return false; } } public static int getDiffYear(String startTime, String endTime) { DateFormat fmt = new SimpleDateFormat("yyyy-MM-dd"); try { int years = (int) (((fmt.parse(endTime).getTime() - fmt.parse(startTime).getTime()) / (1000 * 60 * 60 * 24)) / 365); return years; } catch (Exception e) { // 如果throw java.text.ParseException或者NullPointerException，就说明格式不对 return 0; } } /** * <li>功能描述：时间相减得到天数 * * @param beginDateStr * @param endDateStr * @return long * @author Administrator */ public static long getDaySub(String beginDateStr, String endDateStr) { long day = 0; java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("yyyy-MM-dd"); java.util.Date beginDate = null; java.util.Date endDate = null; try { beginDate = format.parse(beginDateStr); endDate = format.parse(endDateStr); } catch (ParseException e) { e.printStackTrace(); } day = (endDate.getTime() - beginDate.getTime()) / (24 * 60 * 60 * 1000); // System.out.println("相隔的天数="+day); return day; } /** * 得到n天之后的日期 * * @param days * @return */ public static String getAfterDayDate(String days) { int daysInt = Integer.parseInt(days); Calendar canlendar = Calendar.getInstance(); // java.util包 canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动 Date date = canlendar.getTime(); SimpleDateFormat sdfd = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateStr = sdfd.format(date); return dateStr; } /** * 得到n天之后是周几 * * @param days * @return */ public static String getAfterDayWeek(String days) { int daysInt = Integer.parseInt(days); Calendar canlendar = Calendar.getInstance(); // java.util包 canlendar.add(Calendar.DATE, daysInt); // 日期减 如果不够减会将月变动 Date date = canlendar.getTime(); SimpleDateFormat sdf = new SimpleDateFormat("E"); String dateStr = sdf.format(date); return dateStr; } // 根据日期（年月日）获取该月天数列表 public static List<String> getDayListByYearMonth(Date d) { List<String> dayList = new ArrayList<String>(); Date date = getMonthStart(d); Date monthEnd = getMonthEnd(d); while (!date.after(monthEnd)) { dayList.add(sdfDay.format(date)); date = getNext(date); } return dayList; } // 根据日期获取该月第一天 public static Date getMonthStart(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); int index = calendar.get(Calendar.DAY_OF_MONTH); calendar.add(Calendar.DATE, (1 - index)); return calendar.getTime(); } // 根据日期获取该月最后一天 public static Date getMonthEnd(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.MONTH, 1); int index = calendar.get(Calendar.DAY_OF_MONTH); calendar.add(Calendar.DATE, (-index)); return calendar.getTime(); } // 根据日期获取下一天 public static Date getNext(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.DATE, 1); return calendar.getTime(); } public static void main(String[] args) { System.out.println(getDays()); System.out.println(getAfterDayWeek("3")); System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(getMonthStart(new Date()))); System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(getMonthEnd(new Date()))); ; } // 根据计划开始时间和计划结束时间获取天数 public static long planDay(String day1, String day2) { long day = 0; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); try { long m = sdf.parse(day2).getTime() - sdf.parse(day1).getTime(); day = m / (1000 * 60 * 60 * 24); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return day; } // 根据实际开始时间和实际结束时间获取天数 public static long actualDay(String day1, String day2) { long