timeutil.java

文件的上传和下载的实现,用JAva编写,非常简单

/**
 * <p>
 * Title: (#)TimeUtil.java
 * </p>
 * <p>
 * Time: 2005-9-22, 12:46:00
 * </p>
 * <p>
 * Description:
 * </p>
 * <p>
 * Company: 武汉理工大学计算机学院
 * </p>
 * 
 * @version 1.0
 * @author: 彭法銮 Email: [e-mail]
 */
package edu.whut.cwts.pg.db;
import java.text.SimpleDateFormat;

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.StringTokenizer;

public class TimeUtil
{

    /**
     * return Year. like 2005
     * 
     * @param no
     *          param
     * @return string
     */

    public static String getYear(Calendar cld)
    {
        return cld.get(Calendar.YEAR) + "";
    }

    public static String getYear()
    {
        return Calendar.getInstance().get(Calendar.YEAR) + "";
    }

    /**
     * return Month.
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getMonth(Calendar cld, boolean flag)
    {
        int d = cld.get(Calendar.MONTH);
        d += 1;
        if (flag)
        {
            return Str.coverLength(d + "", 2);
        } else
        {
            return d + "";
        }
    }

    public static String getMonth(boolean flag)
    {
        int d = Calendar.getInstance().get(Calendar.MONTH);
        d += 1;
        if (flag)
        {
            return Str.coverLength(d + "", 2);
        } else
        {
            return d + "";
        }
    }

    public static String getMonth()
    {
        return getMonth(false);
    }

    /**
     * return Days.
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getDate(Calendar cld, boolean flag)
    {
        int d = cld.get(Calendar.DATE);
        if (flag)
        {
            return Str.coverLength(d + "", 2);
        } else
        {
            return d + "";
        }
    }

    public static String getDate(boolean flag)
    {
        return getDate(Calendar.getInstance(), flag);
    }

    public static String getDate()
    {
        return getDate(false);
    }

    /**
     * return Hours.
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getHour(Calendar cld, boolean flag)
    {
        int d = cld.get(Calendar.HOUR_OF_DAY);
        if (flag)
        {
            return Str.coverLength(d + "", 2);
        } else
        {
            return d + "";
        }
    }

    public static String getHour(boolean flag)
    {
        return getHour(Calendar.getInstance(), flag);
    }

    public static String getHour()
    {
        return getHour(false);
    }

    /**
     * return Minutes.
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getMinute(Calendar cld, boolean flag)
    {
        int d = cld.get(Calendar.MINUTE);
        if (flag)
        {
            return Str.coverLength(d + "", 2);
        } else
        {
            return d + "";
        }
    }

    public static String getMinute(boolean flag)
    {
        return getMinute(Calendar.getInstance(), flag);
    }

    public static String getMinute()
    {
        return getMinute(false);
    }

    /**
     * return Seconds.
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getSecond(Calendar cld, boolean flag)
    {
        int d = cld.get(Calendar.SECOND);
        if (flag)
        {
            return Str.coverLength(d + "", 2);
        } else
        {
            return d + "";
        }
    }

    public static String getSecond(boolean flag)
    {
        return getSecond(Calendar.getInstance(), flag);
    }

    public static String getSecond()
    {
        return getSecond(false);
    }

    /**
     * return Seconds.
     * 
     * @param no
     *          param
     * 
     * @return string
     */

    public static String getMillSecond(Calendar cld, boolean flag)
    {
        int d = cld.get(Calendar.MILLISECOND);
        return d + "";
    }

    public static String getMillSecond(boolean flag)
    {
        return getMillSecond(Calendar.getInstance(), flag);
    }

    /**
     * return Year and Month.like 200507
     * 
     * @param flag,
     *          Defalut is false. if flag is true, then return the two digit String
     *          if flag is false, then return the original lengths of string
     * @param c
     *          Default is '-'. if c is 'c' then it may return 2005年07月 if c is '-'
     *          then it may return 2005-07
     * @return string
     */

    public static String getYearMonth(Calendar cld, boolean flag, char c)
    {
        if (c == 'c')
        {
            return getYear(cld) + "年" + getMonth(cld, flag) + "月";
        } else
        {
            return getYear(cld) + c + getMonth(cld, flag);
        }
    }

    public static String getYearMonth(boolean flag, char c)
    {
        return getYearMonth(Calendar.getInstance(), flag, c);
    }

    public static String getYearMonth(char c)
    {
        return getYear() + c + getMonth(false);
    }

    public static String getYearMonth()
    {
        return getYear() + "-" + getMonth(false);
    }

    /**
     * return Year and Month and Date. like 20050708
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @param c
     *          Default is '-'. if c is 'c' then it may return 2005年07月08日 if c is '-'
     *          then it may return 2005-07-05
     * @return string
     */
    public static String getYMD(Calendar cld, boolean flag, char c)
    {
        if (c == 'c')
        {
            return getYear(cld) + "年" + getMonth(cld, flag) + "月"
                    + getDate(cld, flag) + "日";
        } else
        {
            return getYear(cld) + c + getMonth(cld, flag) + c
                    + getDate(cld, flag);
        }
    }

    public static String getYMD(boolean flag, char c)
    {
        return getYMD(Calendar.getInstance(), flag, c);
    }

    public static String getYMD(boolean flag)
    {
        return getYear() + getMonth(flag) + getDate(flag);
    }

    public static String getYMD(char c)
    {
        return getYear() + c + getMonth(false) + c + getDate(false);
    }

    public static String getYMD()
    {
        return getYear() + "-" + getMonth(false) + "-" + getDate(false);
    }

    /**
     * return Hour and Minute and Second. like 191815.mean:7pm and 18minute 15 second
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @param c
     *          Default is ':'. if c is 'c' then it may return 下午7点18分15秒. if c is ':'
     *          then it may return 19:18:15
     * @return string
     */

    public static String getHMS(Calendar cld, boolean flag, char c)
    {
        if (c == 'c')
        {
            return getHour(cld, flag) + "点" + getMinute(cld, flag) + "分"
                    + getSecond(cld, flag) + "秒";
        } else
        {
            return getHour(cld, flag) + c + getMinute(cld, flag) + c
                    + getSecond(cld, flag);
        }
    }

    public static String getHMS(boolean flag, char c)
    {
        return getHMS(Calendar.getInstance(), flag, c);
    }

    public static String getHMS(boolean flag)
    {
        return getHour(flag) + getMinute(flag) + getSecond(flag);
    }

    public static String getHMS(char c)
    {
        return getHour(false) + c + getMinute(false) + c + getSecond(false);
    }

    public static String getHMS()
    {
        return getHour(false) + ":" + getMinute(false) + ":" + getSecond(false);
    }

    /**
     * return Hour and Minute . like 1918.mean:7pm and 18minute
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getHourMinute(Calendar cld, boolean flag)
    {
        return getHour(cld, flag) + getMinute(cld, flag);
    }

    public static String getHourMinute(boolean flag)
    {
        return getHourMinute(Calendar.getInstance(), flag);
    }

    public static String getHourMinute()
    {
        return getHour(false) + getMinute(false);
    }

    /**
     * return Minute and Second. like 1815.mean:18minute and 15 second
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getMinuteSecond(Calendar cld, boolean flag)
    {
        return getMinute(cld, flag) + getSecond(cld, flag);
    }

    public static String getMinuteSecond(boolean flag)
    {
        return getMinuteSecond(Calendar.getInstance(), flag);
    }

    public static String getMinuteSecond()
    {
        return getMinute(false) + getSecond(false);
    }

    /**
     * return all ,include Year Month Day Hour Minute and Second.
     * 
     * @param flag,
     *          if flag is true, then return the two digit String if flag is
     *          false, then return the original lengths of string
     * @return string
     */

    public static String getYMDHMS(Calendar cld, boolean flag)
    {
        return getYMD(cld, flag, 'c') + getHMS(cld, flag, 'c');
    }

    public static String getYMDHMS(boolean flag)
    {
        return getYMDHMS(Calendar.getInstance(), flag);
    }