package com.template.common.utils; import java.sql.Timestamp; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.*; /** * 时间转化工具 date转为时间戳 时间戳转date 互相与String的转换 * 所有出现的String time 格式都必须为(yyyy-MM-dd HH:mm:ss),否则出错 * @author * */ public class TimeExchange2 { /** * String(yyyy-MM-dd HH:mm:ss) 转 Date * * @param time * @return * @throws ParseException */ // String date = "2010/05/04 12:34:23"; public static Date StringToDate(String time) throws ParseException { Date date = new Date(); // 注意format的格式要与日期String的格式相匹配 DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); try { date = dateFormat.parse(time); System.out.println(date.toString()); } catch (Exception e) { e.printStackTrace(); } return date; } public static Date StringToDate2(String time) throws ParseException { Date date = new Date(); // 注意format的格式要与日期String的格式相匹配 DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); try { date = dateFormat.parse(time); System.out.println(date.toString()); } catch (Exception e) { e.printStackTrace(); } return date; } /** * String(yyyy-MM-dd HH:mm:ss) 转 Date * * @param time * @return * @throws ParseException */ // String date = "2010/05/04 12:34:23"; public static Date StringToDate(String time, String formatStr) throws ParseException { Date date = new Date(); // 注意format的格式要与日期String的格式相匹配 DateFormat dateFormat = new SimpleDateFormat(formatStr); try { date = dateFormat.parse(time); } catch (Exception e) { e.printStackTrace(); } return date; } /** * Date转为String(yyyy-MM-dd HH:mm:ss) * * @param time * @return */ public static String DateToString(Date time) { String dateStr = ""; Date date = new Date(); DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH/mm/ss"); try { dateStr = dateFormat.format(time); System.out.println(dateStr); } catch (Exception e) { e.printStackTrace(); } return dateStr; } public static String ToSimpleMonth(Date time) { String dateStr = ""; DateFormat dateFormat = new SimpleDateFormat("M"); try { dateStr = dateFormat.format(time); } catch (Exception e) { e.printStackTrace(); } return dateStr; } /** * String(yyyy-MM-dd HH:mm:ss)转10位时间戳 * @param time * @return */ public static Integer StringToTimestamp(String time){ int times = 0; try { times = (int) ((Timestamp.valueOf(time).getTime())/1000); } catch (Exception e) { e.printStackTrace(); } if(times==0){ System.out.println("String转10位时间戳失败"); } return times; } /** * 10位int型的时间戳转换为String(yyyy-MM-dd HH:mm:ss) * @param time * @return */ public static String timestampToString(Integer time){ //int转long时,先进行转型再进行计算,否则会是计算结束后在转型 long temp = (long)time*1000; Timestamp ts = new Timestamp(temp); String tsStr = ""; DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); try { //方法一 tsStr = dateFormat.format(ts); System.out.println(tsStr); } catch (Exception e) { e.printStackTrace(); } return tsStr; } /** * 10位时间戳转Date * @param time * @return */ public static Date TimestampToDate(Integer time){ long temp = (long)time*1000; Timestamp ts = new Timestamp(temp); Date date = new Date(); try { date = ts; //System.out.println(date); } catch (Exception e) { e.printStackTrace(); } return date; } /** * Date类型转换为10位时间戳 * @param time * @return */ public static Integer DateToTimestamp(Date time){ Timestamp ts = new Timestamp(time.getTime()); return (int) ((ts.getTime())/1000); } // 当前时间减1小时 public static String TimeDesH(String time) throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(time)); nowTime2.add(Calendar.HOUR, -1); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return simpleDateFormat.format(nowTime2.getTime()); } // 最近两天 public static String getLastTwo() throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.DATE, -2); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return simpleDateFormat.format(nowTime2.getTime()); } // 当前时间加2分钟 public static String TimeRangeI10(String time,int m) throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(time)); nowTime2.add(Calendar.SECOND, m);//10分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return simpleDateFormat.format(nowTime2.getTime()); } // 当前时间加多少分钟 public static String TimeRangeM(String time,int m) throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate2(time)); nowTime2.add(Calendar.MINUTE, m);//10分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return simpleDateFormat.format(nowTime2.getTime()); } // 当前时间减5分钟 public static String TimeRangeD(String time) throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(time)); nowTime2.add(Calendar.MINUTE, -300);//5分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return simpleDateFormat.format(nowTime2.getTime()); } // 获取当前日期 public static String getDateStr(){ SimpleDateFormat sp = new SimpleDateFormat("yyyy-MM-dd"); return sp.format(new Date()); } // 获取当前日期 public static String getDate(){ SimpleDateFormat sp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sp.format(new Date()); } // 获取前天 public static String getQianDay() throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.DATE, -5);//5分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return simpleDateFormat.format(nowTime2.getTime()); } // 获取明天 public static String getTomorrow() throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.DATE, 1);//5分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return simpleDateFormat.format(nowTime2.getTime()); } // 获取昨天 public static String getYesturday() { try { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.DATE, -1); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return simpleDateFormat.format(nowTime2.getTime()); } catch (ParseException e) { throw new RuntimeException(e); } } // 获取最近7个月 public static List getLastSevenMonth() throws ParseException { List ls = new ArrayList<>(); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM"); for (int i = -6; i <= 0; i++) { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.MONTH, i);//5分钟前的时间 ls.add(simpleDateFormat.format(nowTime2.getTime())); } return ls; } public static String getTomorrowTime() throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.DATE, 1);//5分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return simpleDateFormat.format(nowTime2.getTime()); } public static String getWeek(String sdate) throws ParseException { // 再转换为时间 Date date = StringToDate(sdate,"yyyy-MM-dd"); 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()); } // 今天星期几 public static String getWeek() throws ParseException { String[] weeks = {"7","1","2","3","4","5","6"}; Calendar cal = Calendar.getInstance(); cal.setTime(StringToDate(getTime())); int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1; if(week_index<0){ week_index = 0; } return weeks[week_index]; } // 明天星期几 public static String getTomorrowWeek() throws ParseException { String[] weeks = {"7","1","2","3","4","5","6"}; Calendar cal = Calendar.getInstance(); cal.setTime(StringToDate(getTomorrowTime())); int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1; if(week_index<0){ week_index = 0; } return weeks[week_index]; } // 获取当前时间 public static String getTime(){ SimpleDateFormat sp = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sp.format(new Date()); } public static String getOnlyMM(){ SimpleDateFormat sp = new SimpleDateFormat("HH:mm"); return sp.format(new Date()); } public static String getOnlyDesMM() throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(getTime())); nowTime2.add(Calendar.MINUTE, -5);//5分钟前的时间 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm"); return simpleDateFormat.format(nowTime2.getTime()); } public static String getYear(){ SimpleDateFormat sp = new SimpleDateFormat("yyyy"); return sp.format(new Date()); } public static String getMonth(){ SimpleDateFormat sp = new SimpleDateFormat("yyyy-MM"); return sp.format(new Date()); } // 获取当前时间 public static String getOnlyTime(){ SimpleDateFormat sp = new SimpleDateFormat("HH:mm:ss"); return sp.format(new Date()); } /** * 计算两个日期的时间差 * @param time1 * @param time2 * @return */ public static double getTimeDifference(String time1, String time2) { SimpleDateFormat timeformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); long t1 = 0L; long t2 = 0L; try { t1 = timeformat.parse(time1).getTime(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { t2 = timeformat.parse(time2).getTime(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } //因为t1-t2得到的是毫秒级,所以要初3600000得出小时.算天数或秒同理 double hours=(double) ((t2 - t1)/3600000); double minutes=(double) (((t2 - t1)/1000-hours*3600)/60/60); return hours+minutes; } public static double getOnlyTimeDifference(String time1, String time2) { SimpleDateFormat timeformat = new SimpleDateFormat("HH:mm:ss"); long t1 = 0L; long t2 = 0L; try { t1 = timeformat.parse(time1).getTime(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } try { t2 = timeformat.parse(time2).getTime(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } //因为t1-t2得到的是毫秒级,所以要初3600000得出小时.算天数或秒同理 double hours=(double) ((t2 - t1)/3600000); double minutes=(double) (((t2 - t1)/1000-hours*3600)/60/60); return hours+minutes; } public static double getDiff(String str1, String str2){ return str2.compareTo(str1); } /** * String 转 Date * @param time 时间 * @param formatStr 自定义时间格式 * @return * @throws ParseException */ public static Date ShortStringToDate(String time, String formatStr) throws ParseException { Date date = new Date(); // 注意format的格式要与日期String的格式相匹配 DateFormat dateFormat = new SimpleDateFormat(formatStr); try { date = dateFormat.parse(time); System.out.println(date.toString()); } catch (Exception e) { e.printStackTrace(); } return date; } /** * 获取指定月份有多少天 * * @param month * @return */ public static int getMonthDays(String date, int month) { int year = Integer.valueOf(date.substring(0, 4)); int[] arr = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; int day = arr[month - 1];//天数对应=数组-1 if (month == 2 && year % 4 == 0 && year % 100 != 0 || year % 400 == 0) { day = 29; } return day; } /** * Date转为String * @param time 时间 * @param FormatStr 自定义时间格式 * @return */ public static String DateToString(Date time, String FormatStr) { String dateStr = ""; DateFormat dateFormat = new SimpleDateFormat(FormatStr); try { dateStr = dateFormat.format(time); System.out.println(dateStr); } catch (Exception e) { e.printStackTrace(); } return dateStr; } /** * 比较时间1是否小于时间2 * 如果时间1小于时间2,接口返回true * 如果时间1大于时间2,接口返回false * @param dateOne 时间1 * @param dateTwo 时间2 * @return * @throws ParseException */ public static boolean CompareDate(String dateOne, String dateTwo) throws ParseException { SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date sd1=df.parse(dateOne); Date sd2=df.parse(dateTwo); return sd1.before(sd2); } /** * 比较时间1是否小于时间2 * 如果时间1小于时间2,接口返回true * 如果时间1大于时间2,接口返回false * * @param dateOne 时间1 * @param dateTwo 时间2 * @param Forma 时间格式 * @return * @throws ParseException */ public static boolean CompareDate(String dateOne, String dateTwo, String Forma) throws ParseException { SimpleDateFormat df = new SimpleDateFormat(Forma); Date sd1 = df.parse(dateOne); Date sd2 = df.parse(dateTwo); return sd1.before(sd2); } /** * 时间加减天数 * * @param time 时间 * @param amount 天数 负的为减多少天 正的为加多少天 * @return * @throws ParseException */ public static String TimeDesD(String time, int amount) throws ParseException { Calendar nowTime2 = Calendar.getInstance(); nowTime2.setTime(StringToDate(time, "yyyy-MM-dd")); nowTime2.add(Calendar.DATE, amount); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return simpleDateFormat.format(nowTime2.getTime()); } /** * 相差的天数 */ public static int daysBetween(String smdate, String bdate) throws ParseException { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Calendar cal = Calendar.getInstance(); cal.setTime(sdf.parse(smdate)); long time1 = cal.getTimeInMillis(); cal.setTime(sdf.parse(bdate)); long time2 = cal.getTimeInMillis(); long between_days = (time2 - time1) / (1000 * 3600 * 24); return Integer.parseInt(String.valueOf(between_days)); } /** * 获取一周的开始时间和结束时间 * 获取本周星期一作为一周的第一天的起始时间和结束时间 * * @return 返回的数据中第一个是开始时间 第二个是结束时间 */ public static String[] getCurrentWeekTimeFrame() { Calendar calendar = Calendar.getInstance(); calendar.setTimeZone(TimeZone.getTimeZone("GMT+8")); //start of the week if (calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) { calendar.add(Calendar.DAY_OF_YEAR,-1); } calendar.add(Calendar.DAY_OF_WEEK, -(calendar.get(Calendar.DAY_OF_WEEK) - 2)); //给0的时候查不出数据 // calendar.set(Calendar.HOUR_OF_DAY, 0); // calendar.set(Calendar.MINUTE, 0); // calendar.set(Calendar.SECOND, 0); // calendar.set(Calendar.MILLISECOND, 0); String startTime = DateToString(calendar.getTime(), "yyyy-MM-dd"); //end of the week calendar.add(Calendar.DAY_OF_WEEK, 6); calendar.set(Calendar.HOUR_OF_DAY, 23); calendar.set(Calendar.MINUTE, 59); calendar.set(Calendar.SECOND, 59); calendar.set(Calendar.MILLISECOND, 999); String endTime = DateToString(calendar.getTime()); return new String[]{startTime, endTime}; } /** * 获取指定月份的第一天和最后一天 * @param DateStr 指定月份 * @return 返回的数据中第一个是开始时间 第二个是结束时间 */ public static String[] getCurrentMonthTimeFrame(String DateStr) { Calendar c = Calendar.getInstance();//获取Calendar实例 c.set(Calendar.YEAR, Integer.parseInt(DateStr.substring(0, 4))); c.set(Calendar.MONTH, Integer.parseInt(DateStr.substring(5, 7).replace("-", "")) - 1); c.set(Calendar.DAY_OF_MONTH, 1); String startDate = new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); int lastDay = c.getActualMaximum(Calendar.DAY_OF_MONTH); c.set(Calendar.DAY_OF_MONTH, lastDay); String endDate = new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); return new String[]{startDate, endDate}; } public static List getHighTime(){ String year = getYear(); return Arrays.asList(year+"-"+"08-30",year+"-"+"08-31",year+"-"+"09-01",year+"-"+"09-02",year+"-"+"09-03",year+"-"+"09-04"); } public static List getDays(String startTime, String endTime) { // 返回的日期集合 List days = new ArrayList(); DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); try { Date start = dateFormat.parse(startTime); Date end = dateFormat.parse(endTime); Calendar tempStart = Calendar.getInstance(); tempStart.setTime(start); Calendar tempEnd = Calendar.getInstance(); tempEnd.setTime(end); tempEnd.add(Calendar.DATE, 0);// 日期加1(包含结束) while (tempStart.before(tempEnd)) { days.add(dateFormat.format(tempStart.getTime())); tempStart.add(Calendar.DAY_OF_YEAR, 1); } } catch (ParseException e) { e.printStackTrace(); } return days; } public static void main(String[] args) throws ParseException { char a = 'A'; char b = 'B'; int result = b -a; String s = "ZY"; int ans = 0; for(int i=0;i