权限控制框架-springsecurity

package cn.itcast.utils; import java.text.SimpleDateFormat; import java.util.*; /** * 日期操作工具类 */ public class DateUtils { /** * 日期转换- String -> Date * * @param dateString 字符串时间 * @return Date类型信息 * @throws Exception 抛出异常 */ public static Date parseString2Date(String dateString) throws Exception { if (dateString == null) { return null; } return parseString2Date(dateString, "yyyy-MM-dd"); } /** * 日期转换- String -> Date * * @param dateString 字符串时间 * @param pattern 格式模板 * @return Date类型信息 * @throws Exception 抛出异常 */ public static Date parseString2Date(String dateString, String pattern) throws Exception { if (dateString == null) { return null; } SimpleDateFormat sdf = new SimpleDateFormat(pattern); Date date = sdf.parse(dateString); return date; } /** * 日期转换 Date -> String * * @param date Date类型信息 * @return 字符串时间 * @throws Exception 抛出异常 */ public static String parseDate2String(Date date) throws Exception { if (date == null) { return null; } return parseDate2String(date, "yyyy-MM-dd"); } /** * 日期转换 Date -> String * * @param date Date类型信息 * @param pattern 格式模板 * @return 字符串时间 * @throws Exception 抛出异常 */ public static String parseDate2String(Date date, String pattern) throws Exception { if (date == null) { return null; } SimpleDateFormat sdf = new SimpleDateFormat(pattern); String strDate = sdf.format(date); return strDate; } /** * 获取当前日期的本周一是几号 * * @return 本周一的日期 */ public static Date getThisWeekMonday() { Calendar cal = Calendar.getInstance(); cal.setTime(new Date()); // 获得当前日期是一个星期的第几天 int dayWeek = cal.get(Calendar.DAY_OF_WEEK); if (1 == dayWeek) { cal.add(Calendar.DAY_OF_MONTH, -1); } // 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一 cal.setFirstDayOfWeek(Calendar.MONDAY); // 获得当前日期是一个星期的第几天 int day = cal.get(Calendar.DAY_OF_WEEK); // 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值 cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day); return cal.getTime(); } /** * 获取当前日期周的最后一天 * * @return 当前日期周的最后一天 */ public static Date getSundayOfThisWeek() { Calendar c = Calendar.getInstance(); int dayOfWeek = c.get(Calendar.DAY_OF_WEEK) - 1; if (dayOfWeek == 0) { dayOfWeek = 7; } c.add(Calendar.DATE, -dayOfWeek + 7); return c.getTime(); } /** * 根据日期区间获取月份列表 * * @param minDate 开始时间 * @param maxDate 结束时间 * @return 月份列表 * @throws Exception */ public static List<String> getMonthBetween(String minDate, String maxDate, String format) throws Exception { ArrayList<String> result = new ArrayList<>(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM"); Calendar min = Calendar.getInstance(); Calendar max = Calendar.getInstance(); min.setTime(sdf.parse(minDate)); min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1); max.setTime(sdf.parse(maxDate)); max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2); SimpleDateFormat sdf2 = new SimpleDateFormat(format); Calendar curr = min; while (curr.before(max)) { result.add(sdf2.format(curr.getTime())); curr.add(Calendar.MONTH, 1); } return result; } /** * 根据日期获取年度中的周索引 * * @param date 日期 * @return 周索引 * @throws Exception */ public static Integer getWeekOfYear(String date) throws Exception { Date useDate = parseString2Date(date); Calendar cal = Calendar.getInstance(); cal.setTime(useDate); return cal.get(Calendar.WEEK_OF_YEAR); } /** * 根据年份获取年中周列表 * * @param year 年分 * @return 周列表 * @throws Exception */ public static Map<Integer, String> getWeeksOfYear(String year) throws Exception { Date useDate = parseString2Date(year, "yyyy"); Calendar cal = Calendar.getInstance(); cal.setTime(useDate); //获取年中周数量 int weeksCount = cal.getWeeksInWeekYear(); Map<Integer, String> mapWeeks = new HashMap<>(55); for (int i = 0; i < weeksCount; i++) { cal.get(Calendar.DAY_OF_YEAR); mapWeeks.put(i + 1, parseDate2String(getFirstDayOfWeek(cal.get(Calendar.YEAR), i))); } return mapWeeks; } /** * 获取某年的第几周的开始日期 * * @param year 年分 * @param week 周索引 * @return 开始日期 * @throws Exception */ public static Date getFirstDayOfWeek(int year, int week) throws Exception { Calendar c = new GregorianCalendar(); c.set(Calendar.YEAR, year); c.set(Calendar.MONTH, Calendar.JANUARY); c.set(Calendar.DATE, 1); Calendar cal = (GregorianCalendar) c.clone(); cal.add(Calendar.DATE, week * 7); return getFirstDayOfWeek(cal.getTime()); } /** * 获取某年的第几周的结束日期 * * @param year 年份 * @param week 周索引 * @return 结束日期 * @throws Exception */ public static Date getLastDayOfWeek(int year, int week) throws Exception { Calendar c = new GregorianCalendar(); c.set(Calendar.YEAR, year); c.set(Calendar.MONTH, Calendar.JANUARY); c.set(Calendar.DATE, 1); Calendar cal = (GregorianCalendar) c.clone(); cal.add(Calendar.DATE, week * 7); return getLastDayOfWeek(cal.getTime()); } /** * 获取当前时间所在周的开始日期 * * @param date 当前时间 * @return 开始时间 */ public static Date getFirstDayOfWeek(Date date) { Calendar c = new GregorianCalendar(); c.setFirstDayOfWeek(Calendar.SUNDAY); c.setTime(date); c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek()); return c.getTime(); } /** * 获取当前时间所在周的结束日期 * * @param date 当前时间 * @return 结束日期 */ public static Date getLastDayOfWeek(Date date) { Calendar c = new GregorianCalendar(); c.setFirstDayOfWeek(Calendar.SUNDAY); c.setTime(date); c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek() + 6); return c.getTime(); } //获得上周一的日期 public static Date geLastWeekMonday(Date date) { Calendar cal = Calendar.getInstance(); cal.setTime(getThisWeekMonday(date)); cal.add(Calendar.DATE, -7); return cal.getTime(); } //获得本周一的日期 public static Date getThisWeekMonday(Date date) { Calendar cal = Calendar.getInstance(); cal.setTime(date); // 获得当前日期是一个星期的第几天 int dayWeek = cal.get(Calendar.DAY_O