用户注册



邮箱：

密码：

用户登录


邮箱：

密码：
记住登录一个月忘记密码？

发表随想


还能输入：200字
云代码 - java代码库

java时间日期格式化类 时间日期转换类

2014-06-22 作者： 小蜜锋举报

[java]代码库

view sourceprint?
import java.util.*;
import java.text.*;
import java.util.Calendar;
public class VeDate {
    /**
     * 获取现在时间
     *
     * @return 返回时间类型 yyyy-MM-dd HH:mm:ss
     */
    public static Date getNowDate() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(currentTime);
        ParsePosition pos = new ParsePosition(8);
        Date currentTime_2 = formatter.parse(dateString, pos);
        return currentTime_2;
    }
    /**
     * 获取现在时间
     *
     * @return返回短时间格式 yyyy-MM-dd
     */
    public static Date getNowDateShort() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(currentTime);
        ParsePosition pos = new ParsePosition(8);
        Date currentTime_2 = formatter.parse(dateString, pos);
        return currentTime_2;
    }
    /**
     * 获取现在时间
     *
     * @return返回字符串格式 yyyy-MM-dd HH:mm:ss
     */
    public static String getStringDate() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(currentTime);
        return dateString;
    }
    /**
     * 获取现在时间
     *
     * @return 返回短时间字符串格式yyyy-MM-dd
     */
    public static String getStringDateShort() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(currentTime);
        return dateString;
    }
    /**
     * 获取时间 小时:分;秒 HH:mm:ss
     *
     * @return
     */
    public static String getTimeShort() {
        SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
        Date currentTime = new Date();
        String dateString = formatter.format(currentTime);
        return dateString;
    }
    /**
     * 将长时间格式字符串转换为时间 yyyy-MM-dd HH:mm:ss
     *
     * @param strDate
     * @return
     */
    public static Date strToDateLong(String strDate) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        ParsePosition pos = new ParsePosition(0);
        Date strtodate = formatter.parse(strDate, pos);
        return strtodate;
    }
    /**
     * 将长时间格式时间转换为字符串 yyyy-MM-dd HH:mm:ss
     *
     * @param dateDate
     * @return
     */
    public static String dateToStrLong(java.util.Date dateDate) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(dateDate);
        return dateString;
    }
    /**
     * 将短时间格式时间转换为字符串 yyyy-MM-dd
     *
     * @param dateDate
     * @param k
     * @return
     */
    public static String dateToStr(java.util.Date dateDate) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(dateDate);
        return dateString;
    }
    /**
     * 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;
    }
    /**
     * 得到现在时间
     *
     * @return
     */
    public static Date getNow() {
        Date currentTime = new Date();
        return currentTime;
    }
    /**
     * 提取一个月中的最后一天
     *
     * @param day
     * @return
     */
    public static Date getLastDate(long day) {
        Date date = new Date();
        long date_3_hm = date.getTime() - 3600000 * 34 * day;
        Date date_3_hm_date = new Date(date_3_hm);
        return date_3_hm_date;
    }
    /**
     * 得到现在时间
     *
     * @return 字符串 yyyyMMdd HHmmss
     */
    public static String getStringToday() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");
        String dateString = formatter.format(currentTime);
        return dateString;
    }
    /**
     * 得到现在小时
     */
    public static String getHour() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(currentTime);
        String hour;
        hour = dateString.substring(11, 13);
        return hour;
    }
    /**
     * 得到现在分钟
     *
     * @return
     */
    public static String getTime() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(currentTime);
        String min;
        min = dateString.substring(14, 16);
        return min;
    }
    /**
     * 根据用户传入的时间表示格式，返回当前时间的格式 如果是yyyyMMdd，注意字母y不能大写。
     *
     * @param sformat
     *            yyyyMMddhhmmss
     * @return
     */
    public static String getUserDate(String sformat) {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat(sformat);
        String dateString = formatter.format(currentTime);
        return dateString;
    }
    /**
     * 二个小时时间间的差值,必须保证二个时间都是"HH:MM"的格式，返回字符型的分钟
     */
    public static String getTwoHour(String st1, String st2) {
        String[] kk = null;
        String[] jj = null;
        kk = st1.split(":");
        jj = st2.split(":");
        if (Integer.parseInt(kk[0]) < Integer.parseInt(jj[0]))
            return "0";
        else {
            double y = Double.parseDouble(kk[0]) + Double.parseDouble(kk[1]) / 60;
            double u = Double.parseDouble(jj[0]) + Double.parseDouble(jj[1]) / 60;
            if ((y - u) > 0)
                return y - u + "";
            else
                return "0";
        }
    }
    /**
     * 得到二个日期间的间隔天数
     */
    public static String getTwoDay(String sj1, String sj2) {
        SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
        long day = 0;
        try {
            java.util.Date date = myFormatter.parse(sj1);
            java.util.Date mydate = myFormatter.parse(sj2);
            day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
        } catch (Exception e) {
            return "";
        }
        return day + "";
    }
    /**
     * 时间前推或后推分钟,其中JJ表示分钟.
     */
    public static String getPreTime(String sj1, String jj) {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String mydate1 = "";
        try {
            Date date1 = format.parse(sj1);
            long Time = (date1.getTime() / 1000) + Integer.parseInt(jj) * 60;
            date1.setTime(Time * 1000);
            mydate1 = format.format(date1);
        } catch (Exception e) {
        }
        return mydate1;
    }
    /**
     * 得到一个时间延后或前移几天的时间,nowdate为时间,delay为前移或后延的天数
     */
    public static String getNextDay(String nowdate, String delay) {
        try {
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            String mdate = "";
            Date d = strToDate(nowdate);
            long myTime = (d.getTime() / 1000) + Integer.parseInt(delay) * 24 * 60 * 60;
            d.setTime(myTime * 1000);
            mdate = format.format(d);
            return mdate;
        } catch(Exception e) {
            return "";
        }
    }
    /**
     * 判断是否润年
     *
     * @param ddate
     * @return
     */
    public static boolean isLeapYear(String ddate) {
        /**
         * 详细设计： 1.被400整除是闰年，否则： 2.不能被4整除则不是闰年 3.能被4整除同时不能被100整除则是闰年
         * 3.能被4整除同时能被100整除则不是闰年
         */
        Date d = strToDate(ddate);
        GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
        gc.setTime(d);
        int year = gc.get(Calendar.YEAR);
        if ((year % 400) == 0)
            return true;
        else if ((year % 4) == 0) {
            if ((year % 100) == 0)
                return false;
            else
                return true;
        } else
            return false;
    }
    /**
     * 返回美国时间格式 26 Apr 2006
     *
     * @param str
     * @return
     */
    public static String getEDate(String str) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        ParsePosition pos = new ParsePosition(0);
        Date strtodate = formatter.parse(str, pos);
        String j = strtodate.toString();
        String[] k = j.split(" ");
        return k[2] + k[1].toUpperCase() + k[5].substring(2, 4);
    }
    /**
     * 获取一个月的最后一天
     *
     * @param dat
     * @return
     */
    public static String getEndDateOfMonth(String dat) {// yyyy-MM-dd
        String str = dat.substring(0, 8);
        String month = dat.substring(5, 7);
        int mon = Integer.parseInt(month);
        if (mon == 1 || mon == 3 || mon == 5 || mon == 7 || mon == 8 || mon == 10 || mon == 12) {
            str += "31";
        } else if (mon == 4 || mon == 6 || mon == 9 || mon == 11) {
            str += "30";
        } else {
            if (isLeapYear(dat)) {
                str += "29";
            } else {
                str += "28";
            }
        }
        return str;
    }
    /**
     * 判断二个时间是否在同一个周
     *
     * @param date1
     * @param date2
     * @return
     */
    public static boolean isSameWeekDates(Date date1, Date date2) {
        Calendar cal1 = Calendar.getInstance();
        Calendar cal2 = Calendar.getInstance();
        cal1.setTime(date1);
        cal2.setTime(date2);
        int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);
        if (0 == subYear) {
            if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
                return true;
        } else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) {
            // 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周
            if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
                return true;
        } else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) {
            if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
                return true;
        }
        return false;
    }
    /**
     * 产生周序列,即得到当前时间所在的年度是第几周
     *
     * @return
     */
    public static String getSeqWeek() {
        Calendar c = Calendar.getInstance(Locale.CHINA);
        String week = Integer.toString(c.get(Calendar.WEEK_OF_YEAR));
        if (week.length() == 1)
            week = "0" + week;
        String year = Integer.toString(c.get(Calendar.YEAR));
        return year + week;
    }
    /**
     * 获得一个日期所在的周的星期几的日期，如要找出2002年2月3日所在周的星期一是几号
     *
     * @param sdate
     * @param num
     * @return
     */
    public static String getWeek(String sdate, String num) {
        // 再转换为时间
        Date dd = VeDate.strToDate(sdate);
        Calendar c = Calendar.getInstance();
        c.setTime(dd);
        if (num.equals("1")) // 返回星期一所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
        else if (num.equals("2")) // 返回星期二所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
        else if (num.equals("3")) // 返回星期三所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY);
        else if (num.equals("4")) // 返回星期四所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.THURSDAY);
        else if (num.equals("5")) // 返回星期五所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.FRIDAY);
        else if (num.equals("6")) // 返回星期六所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);
        else if (num.equals("0")) // 返回星期日所在的日期
            c.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
        return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());
    }
    /**
     * 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 = VeDate.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());
    }
    public static String getWeekStr(String sdate) {
        String str = "";
        str = VeDate.getWeek(sdate);
        if("1".equals(str)) {
            str = "星期日";
        } else if("2".equals(str)) {
            str = "星期一";
        } else if("3".equals(str)) {
            str = "星期二";
        } else if("4".equals(str)) {
            str = "星期三";
        } else if("5".equals(str)) {
            str = "星期四";
        } else if("6".equals(str)) {
            str = "星期五";
        } else if("7".equals(str)) {
            str = "星期六";
        }
        return str;
    }
    /**
     * 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");
        java.util.Date date = null;
        java.util.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;
    }
    /**
     * 形成如下的日历 ， 根据传入的一个时间返回一个结构 星期日 星期一 星期二 星期三 星期四 星期五 星期六 下面是当月的各个时间
     * 此函数返回该日历第一行星期日所在的日期
     *
     * @param sdate
     * @return
     */
    public static String getNowMonth(String sdate) {
        // 取该时间所在月的一号
        sdate = sdate.substring(0, 8) + "01";
        // 得到这个月的1号是星期几
        Date date = VeDate.strToDate(sdate);
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        int u = c.get(Calendar.DAY_OF_WEEK);
        String newday = VeDate.getNextDay(sdate, (1 - u) + "");
        return newday;
    }
    /**
     * 取得数据库主键 生成格式为yyyymmddhhmmss+k位随机数
     *
     * @param k
     *            表示是取几位随机数，可以自己定
     */
    public static String getNo(int k) {
        return getUserDate("yyyyMMddhhmmss") + getRandom(k);
    }
    /**
     * 返回一个随机数
     *
     * @param i
     * @return
     */
    public static String getRandom(int i) {
        Random jjj = new Random();
        // int suiJiShu = jjj.nextInt(9);
        if (i == 0)
            return "";
        String jj = "";
        for (int k = 0; k < i; k++) {
            jj = jj + jjj.nextInt(9);
        }
        return jj;
    }
    /**
     *
     * @param args
     */
    public static boolean RightDate(String date) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        ;
        if (date == null)
            return false;
        if (date.length() > 10) {
            sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        } else {
            sdf = new SimpleDateFormat("yyyy-MM-dd");
        }
        try {
            sdf.parse(date);
        } catch (ParseException pe) {
            return false;
        }
        return true;
    }
    /***************************************************************************
     * //nd=1表示返回的值中包含年度 //yf=1表示返回的值中包含月份 //rq=1表示返回的值中包含日期 //format表示返回的格式 1
     * 以年月日中文返回 2 以横线-返回 // 3 以斜线/返回 4 以缩写不带其它符号形式返回 // 5 以点号.返回
     **************************************************************************/
    public static String getStringDateMonth(String sdate, String nd, String yf, String rq, String format) {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        String dateString = formatter.format(currentTime);
        String s_nd = dateString.substring(0, 4); // 年份
        String s_yf = dateString.substring(5, 7); // 月份
        String s_rq = dateString.substring(8, 10); // 日期
        String sreturn = "";
        roc.util.MyChar mc = new roc.util.MyChar();
        if (sdate == null || sdate.equals("") || !mc.Isdate(sdate)) { // 处理空值情况
            if (nd.equals("1")) {
                sreturn = s_nd;
                // 处理间隔符
                if (format.equals("1"))
                    sreturn = sreturn + "年";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理月份
            if (yf.equals("1")) {
                sreturn = sreturn + s_yf;
                if (format.equals("1"))
                    sreturn = sreturn + "月";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理日期
            if (rq.equals("1")) {
                sreturn = sreturn + s_rq;
                if (format.equals("1"))
                    sreturn = sreturn + "日";
            }
        } else {
            // 不是空值，也是一个合法的日期值，则先将其转换为标准的时间格式
            sdate = roc.util.RocDate.getOKDate(sdate);
            s_nd = sdate.substring(0, 4); // 年份
            s_yf = sdate.substring(5, 7); // 月份
            s_rq = sdate.substring(8, 10); // 日期
            if (nd.equals("1")) {
                sreturn = s_nd;
                // 处理间隔符
                if (format.equals("1"))
                    sreturn = sreturn + "年";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理月份
            if (yf.equals("1")) {
                sreturn = sreturn + s_yf;
                if (format.equals("1"))
                    sreturn = sreturn + "月";
                else if (format.equals("2"))
                    sreturn = sreturn + "-";
                else if (format.equals("3"))
                    sreturn = sreturn + "/";
                else if (format.equals("5"))
                    sreturn = sreturn + ".";
            }
            // 处理日期
            if (rq.equals("1")) {
                sreturn = sreturn + s_rq;
                if (format.equals("1"))
                    sreturn = sreturn + "日";
            }
        }
        return sreturn;
    }
    public static String getNextMonthDay(String sdate, int m) {
        sdate = getOKDate(sdate);
        int year = Integer.parseInt(sdate.substring(0, 4));
        int month = Integer.parseInt(sdate.substring(5, 7));
        month = month + m;
        if (month < 0) {
            month = month + 12;
            year = year - 1;
        } else if (month > 12) {
            month = month - 12;
            year = year + 1;
        }
        String smonth = "";
        if (month < 10)
            smonth = "0" + month;
        else
            smonth = "" + month;
        return year + "-" + smonth + "-10";
    }
    public static String getOKDate(String sdate) {
        if (sdate == null || sdate.equals(""))
            return getStringDateShort();
        if (!VeStr.Isdate(sdate)) {
            sdate = getStringDateShort();
        }
        // 将“/”转换为“-”
        sdate = VeStr.Replace(sdate, "/", "-");
        // 如果只有8位长度，则要进行转换
        if (sdate.length() == 8)
            sdate = sdate.substring(0, 4) + "-" + sdate.substring(4, 6) + "-" + sdate.substring(6, 8);
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        ParsePosition pos = new ParsePosition(0);
        Date strtodate = formatter.parse(sdate, pos);
        String dateString = formatter.format(strtodate);
        return dateString;
    }
    public static void main(String[] args) throws Exception {
        try {
            //System.out.print(Integer.valueOf(getTwoDay("2006-11-03 12:22:10", "2006-11-02 11:22:09")));
        } catch (Exception e) {
            throw new Exception();
        }
        //System.out.println("sss");
    }
}


网友评论    (发表评论)


发表评论：

评论须知：

  • 1、评论每次加2分，每天上限为30；
  • 2、请文明用语，共同创建干净的技术交流环境；
  • 3、若被发现提交非法信息，评论将会被删除，并且给予扣分处理，严重者给予封号处理；
  • 4、请勿发布广告信息或其他无关评论，否则将会删除评论并扣分，严重者给予封号处理。


扫码下载

加载中，请稍后...

输入口令后可复制整站源码

加载中，请稍后...