基于Html的疫苗预约及跟进系统设计源码

package com.wdzl.ymyy.utils.utils; import org.apache.commons.lang3.StringUtils; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; /** * 工具类-日期处理 * * @author xx * @version 1.0 * @since 2014年1月28日 */ public class DateUtils { /** * 获得当前日期 * * @return */ public static Date getNow() { Calendar cal = Calendar.getInstance(); Date currDate = cal.getTime(); return currDate; } /** * 日期转换为字符串 格式自定义 * * @param date * @param f * @return */ public static String dateStr(Date date, String f) { if (date == null) { return ""; } SimpleDateFormat format = new SimpleDateFormat(f); String str = format.format(date); return str; } /** * 日期转换为字符串 MM月dd日 hh:mm * * @param date * @return */ public static String dateStr(Date date) { return dateStr(date, "MM月dd日 hh:mm"); } /** * 日期转换为字符串 yyyy-MM-dd * * @param date * @return */ public static String dateStr2(Date date) { return dateStr(date, "yyyy-MM-dd"); } /** * yyyy年MM月dd日HH时mm分ss秒 * * @param date * @return */ public static String dateStr5(Date date) { return dateStr(date, "yyyy年MM月dd日 HH时mm分ss秒"); } /** * yyyyMMddHHmmss * * @param date * @return */ public static String dateStr3(Date date) { return dateStr(date, "yyyyMMddHHmmss"); } /** * yyyy-MM-dd HH:mm:ss * * @param date * @return */ public static String dateStr4(Date date) { return dateStr(date, "yyyy-MM-dd HH:mm:ss"); } /** * yyyy年MM月dd日 * * @param date * @return */ public static String dateStr6(Date date) { return dateStr(date, "yyyy年MM月dd日"); } /** * yyyyMMdd * * @param date * @return */ public static String dateStr7(Date date) { return dateStr(date, "yyyyMMdd"); } /** * MM-dd * * @param date * @return */ public static String dateStr8(Date date) { return dateStr(date, "MM-dd"); } /** * HH:mm * * @param date * @return */ public static String dateStr9(Date date) { return dateStr(date, "HH:mm"); } /** * 将时间戳转换为Date * * @param times * @return */ public static Date getDate(String times) { long time = Long.parseLong(times); return new Date(time * 1000); } public static String dateStr(String times) { return dateStr(getDate(times)); } public static String dateStr2(String times) { return dateStr2(getDate(times)); } public static String dateStr3(String times) { return dateStr3(getDate(times)); } public static String dateStr4(String times) { return dateStr4(getDate(times)); } public static String dateStr5(String times) { return dateStr5(getDate(times)); } /** * 将Date转换为时间戳 * * @param date * @return */ public static long getTime(Date date) { return date.getTime() / 1000; } public static int getDay(Date d) { Calendar cal = Calendar.getInstance(); cal.setTime(d); return cal.get(Calendar.DAY_OF_MONTH); } /** * s - 表示 "yyyy-mm-dd" 形式的日期的 String 对象 * * @param * @return */ public static Date valueOf(String s) { final int YEAR_LENGTH = 4; final int MONTH_LENGTH = 2; final int DAY_LENGTH = 2; final int MAX_MONTH = 12; final int MAX_DAY = 31; int firstDash; int secondDash; int threeDash = 0; int fourDash = 0; Date d = null; if (s == null) { throw new IllegalArgumentException(); } firstDash = s.indexOf('-'); secondDash = s.indexOf('-', firstDash + 1); if (s.contains(":")) { threeDash = s.indexOf(':'); fourDash = s.indexOf(':', threeDash + 1); } if ((firstDash > 0) && (secondDash > 0) && (secondDash < s.length() - 1)) { String yyyy = s.substring(0, firstDash); String mm = s.substring(firstDash + 1, secondDash); String dd = ""; String hh = ""; String MM = ""; String ss = ""; if (s.contains(":")) { dd = s.substring(secondDash + 1, threeDash - 3); hh = s.substring(threeDash - 2, threeDash); MM = s.substring(threeDash + 1, fourDash); ss = s.substring(fourDash + 1); } else { dd = s.substring(secondDash + 1); } if (yyyy.length() == YEAR_LENGTH && mm.length() == MONTH_LENGTH && dd.length() == DAY_LENGTH) { int year = Integer.parseInt(yyyy); int month = Integer.parseInt(mm); int day = Integer.parseInt(dd); int hour = 0; int minute = 0; int second = 0; if (s.contains(":")) { hour = Integer.parseInt(hh); minute = Integer.parseInt(MM); second = Integer.parseInt(ss); } if (month >= 1 && month <= MAX_MONTH) { int maxDays = MAX_DAY; switch (month) { // February determine if a leap year or not case 2: if ((year % 4 == 0 && !(year % 100 == 0)) || (year % 400 == 0)) { maxDays = MAX_DAY - 2; // leap year so 29 days in // February } else { maxDays = MAX_DAY - 3; // not a leap year so 28 days // in February } break; // April, June, Sept, Nov 30 day months case 4: case 6: case 9: case 11: maxDays = MAX_DAY - 1; break; } if (day >= 1 && day <= maxDays) { Calendar cal = Calendar.getInstance(); cal.set(year, month - 1, day, hour, minute, second); cal.set(Calendar.MILLISECOND, 0); d = cal.getTime(); } } } } if (d == null) { throw new IllegalArgumentException(); } return d; } /** * 获取指定日期星期几 * * @param dt * @return */ public static String getWeekOfDate(Date dt) { String[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"}; Calendar cal = Calendar.getInstance(); cal.setTime(dt); int w = cal.get(Calendar.DAY_OF_WEEK) - 1; if (w < 0) { w = 0; } return weekDays[w]; } /** * 获取指定日期星期几(int) * * @param dt * @return */ public static int getWeekOfInt(Date dt) { int[] weekDays = {7, 1, 2, 3, 4, 5, 6}; Calendar cal = Calendar.getInstance(); cal.setTime(dt); int w = cal.get(Calendar.DAY_OF_WEEK) - 1; if (w < 0) { w = 0; } return we