BlogJava-java 友人帮-文章分类-Date toolshttp://www.blogjava.net/jzone/category/41008.htmljava web, java wap ..My laboratory..zh-cnThu, 04 Nov 2010 11:13:15 GMTThu, 04 Nov 2010 11:13:15 GMT60时间工具类 DateUtilhttp://www.blogjava.net/jzone/articles/290719.htmlGavin.leeGavin.leeTue, 11 Aug 2009 13:28:00 GMThttp://www.blogjava.net/jzone/articles/290719.html阅读全文

Gavin.lee 2009-08-11 21:28 发表评论
]]>Calendar 工具类 操作http://www.blogjava.net/jzone/articles/287935.htmlGavin.leeGavin.leeWed, 22 Jul 2009 15:49:00 GMThttp://www.blogjava.net/jzone/articles/287935.html 

package com.yixun.wap;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.SimpleTimeZone;
import java.util.TimeZone;

import org.apache.log4j.Logger;

public class TestCalendar {

    private static Logger logger = Logger.getLogger(TestCalendar.class);
    public static void main(String[] args) {
        /**
         * Calendar 是抽象类，
         */
        Calendar calendar = Calendar.getInstance();
//        Calendar calendar = new GregorianCalendar();    //Calendar 的一个子类
        //        
        Date trialTime = new Date();
        calendar.setTime(trialTime);

        // print out a bunch of interesting things
        logger.debug("ERA: " + calendar.get(Calendar.ERA));
        logger.debug("YEAR: " + calendar.get(Calendar.YEAR));
        logger.debug("MONTH: " + calendar.get(Calendar.MONTH));
        logger.debug("WEEK_OF_YEAR: " + calendar.get(Calendar.WEEK_OF_YEAR));
        logger.debug("WEEK_OF_MONTH: " + calendar.get(Calendar.WEEK_OF_MONTH));
        logger.debug("DATE: " + calendar.get(Calendar.DATE));
        logger.debug("DAY_OF_MONTH: " + calendar.get(Calendar.DAY_OF_MONTH));
        logger.debug("DAY_OF_YEAR: " + calendar.get(Calendar.DAY_OF_YEAR));
        logger.debug("DAY_OF_WEEK: " + calendar.get(Calendar.DAY_OF_WEEK));
        logger.debug("DAY_OF_WEEK_IN_MONTH: " + calendar.get(Calendar.DAY_OF_WEEK_IN_MONTH));
        logger.debug("AM_PM: " + calendar.get(Calendar.AM_PM));
        logger.debug("HOUR: " + calendar.get(Calendar.HOUR));
        logger.debug("HOUR_OF_DAY: " + calendar.get(Calendar.HOUR_OF_DAY));
        logger.debug("MINUTE: " + calendar.get(Calendar.MINUTE));
        logger.debug("SECOND: " + calendar.get(Calendar.SECOND));
        logger.debug("MILLISECOND: " + calendar.get(Calendar.MILLISECOND));
        logger.debug("ZONE_OFFSET: " + (calendar.get(Calendar.ZONE_OFFSET) / (60 * 60 * 1000))); // in
                                                                            // hours
        logger.debug("DST_OFFSET: "    + (calendar.get(Calendar.DST_OFFSET) / (60 * 60 * 1000))); // in hours

        logger.debug("Date:" + calendar.getTime());
        logger.debug("getTimeInMillis:" + calendar.getTimeInMillis());
        
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        
        Date date = null;
        try {
            date = sdf.parse("1986-6-3 12:30:00");
        } catch (ParseException e) {
            e.printStackTrace();
        }
        
        calendar.setTime(date);
        
        calendar.setTimeInMillis(100000*1000);
        
        long times = calendar.getTimeInMillis();
        logger.debug(sdf.format(times));
        logger.debug(sdf.format(calendar.getTime()));
        
        calendar.set(1986, 6, 3);
        logger.debug(sdf.format(calendar.getTime()));
        
        calendar.set(1986, 6, 3, 10, 10, 10);
        logger.debug(sdf.format(calendar.getTime()));
        
        logger.debug(calendar.getTimeZone());
        logger.debug(calendar);
    }

}

//[DEBUG  0 ] ->  -content:ERA: 1
//[DEBUG 16 ] ->  -content:YEAR: 2009
//[DEBUG 16 ] ->  -content:MONTH: 6
//[DEBUG 16 ] ->  -content:WEEK_OF_YEAR: 30
//[DEBUG 16 ] ->  -content:WEEK_OF_MONTH: 4
//[DEBUG 16 ] ->  -content:DATE: 23
//[DEBUG 16 ] ->  -content:DAY_OF_MONTH: 23
//[DEBUG 16 ] ->  -content:DAY_OF_YEAR: 204
//[DEBUG 16 ] ->  -content:DAY_OF_WEEK: 5
//[DEBUG 16 ] ->  -content:DAY_OF_WEEK_IN_MONTH: 4
//[DEBUG 16 ] ->  -content:AM_PM: 1
//[DEBUG 16 ] ->  -content:HOUR: 1
//[DEBUG 16 ] ->  -content:HOUR_OF_DAY: 13
//[DEBUG 16 ] ->  -content:MINUTE: 31
//[DEBUG 16 ] ->  -content:SECOND: 14
//[DEBUG 16 ] ->  -content:MILLISECOND: 312
//[DEBUG 16 ] ->  -content:ZONE_OFFSET: 0
//[DEBUG 16 ] ->  -content:DST_OFFSET: 0
//[DEBUG 31 ] ->  -content:Date:Thu Jul 23 13:31:14 GMT 2009
//[DEBUG 31 ] ->  -content:getTimeInMillis:1248355874312
//[DEBUG 31 ] ->  -content:1970-01-02 03:46:40
//[DEBUG 31 ] ->  -content:1970-01-02 03:46:40
//[DEBUG 31 ] ->  -content:1986-07-03 03:46:40
//[DEBUG 31 ] ->  -content:1986-07-03 10:10:10
//[DEBUG 31 ] ->  -content:sun.util.calendar.ZoneInfo[id="GMT",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
//[DEBUG 31 ] ->  -content:java.util.GregorianCalendar[time=520769410000,areFieldsSet=true,areAllFieldsSet=true,lenient=true,zone=sun.util.calendar.ZoneInfo[id="GMT",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null],firstDayOfWeek=1,minimalDaysInFirstWeek=1,ERA=1,YEAR=1986,MONTH=6,WEEK_OF_YEAR=27,WEEK_OF_MONTH=1,DAY_OF_MONTH=3,DAY_OF_YEAR=184,DAY_OF_WEEK=5,DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=10,HOUR_OF_DAY=10,MINUTE=10,SECOND=10,MILLISECOND=0,ZONE_OFFSET=0,DST_OFFSET=0]




Gavin.lee 2009-07-22 23:49 发表评论
]]>java SimpleDateFormathttp://www.blogjava.net/jzone/articles/286458.htmlGavin.leeGavin.leeSun, 12 Jul 2009 08:59:00 GMThttp://www.blogjava.net/jzone/articles/286458.html1.date->String

import  java.util. * ;
 import  java.text. * ;
 public   class  DateTest  {
     public   static   void  main(String[] args)      {    
        Calendar cal  =  Calendar.getInstance();  
        
        Date time  =  cal.getTime();
         long  t  =  cal.getTimeInMillis();
        Date date  =   new  Date();
         // time == date

        String format1  =   new  SimpleDateFormat( " yyyy-MM-dd HH:mm:ss " ).format(time);
        String format2  =   new  SimpleDateFormat( " yyyy-MM-dd HH:mm:ss " ).format(t);
        String format3  =   new  SimpleDateFormat( " yyyy-MM-dd HH:mm:ss " ).format(date):
         //  format1 == format2 == format3
    }
}

2.String->date

import  java.util. * ;
 import  java.text. * ;
 public   class  DateTest  {
     public   static   void  main(String[] args)      {    
        SimpleDateFormat sdf  =   new  SimpleDateFormat ( " yyyy-MM-dd HH:mm:ss " ); 

        Date date  =   null ;
         try {
            date  =  sdf.parse( " 2007-10-03 10:10:10 " ); // date 对象
        }   catch  (ParseException e) {
            e.printStackTrace();
        }
        
        System.out.println(sdf.format(date));
    }
}

3.指定格式化日期的语言环境
import java.text.SimpleDateFormat;
import java.util.*;
public class Test {

    public static void main(String[] args) {        
        SimpleDateFormat format = new SimpleDateFormat("EEE", Locale.ENGLISH);
        
        System.out.println(format.format(Calendar.getInstance().getTime()));    //Thu
    }
}

4.英语下解释时间模式

日期和时间模式

结果

"yyyy.MM.dd G 'at' HH:mm:ss z" 2001.07.04 AD at 12:08:56 PDT
"EEE, MMM d, ''yy" Wed, Jul 4, '01
"h:mm a" 12:08 PM
"hh 'o''clock' a, zzzz" 12 o'clock PM, Pacific Daylight Time
"K:mm a, z" 0:08 PM, PDT
"yyyyy.MMMMM.dd GGG hh:mm aaa" 02001.July.04 AD 12:08 PM
"EEE, d MMM yyyy HH:mm:ss Z" Wed, 4 Jul 2001 12:08:56 -0700
"yyMMddHHmmssZ" 010704120856-0700
"yyyy-MM-dd'T'HH:mm:ss.SSSZ" 2001-07-04T12:08:56.235-0700


Gavin.lee 2009-07-12 16:59 发表评论
]]>求两个时间差http://www.blogjava.net/jzone/articles/271777.htmlGavin.leeGavin.leeWed, 20 May 2009 11:09:00 GMThttp://www.blogjava.net/jzone/articles/271777.html按照测试方法，就能够算出两个时间点的差。

package com.Gavin.tools.util;

import java.util.Date;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import com.sun.org.apache.bcel.internal.generic.NEW;

/** *//**
 * Title: 日期时间
 * Description: 工具类
 * @author Gavin.lee
 * @date 09-05-4 9-14am
 * @version 1.0
 */
public class DateUtil {

    public static String date2Dispersion(String date_front, String date_back) {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

        Date begin = null;
        Date end = null;
        try {
            begin = df.parse(date_front);
            end = df.parse(date_back);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        long between = (end.getTime() - begin.getTime()) / 1000;// 除以1000是为了转换成秒
        long day = between / (24 * 3600);//天
        long hour = between % (24 * 3600) / 3600;//小时
        long minute = between % 3600 / 60;//分钟
        long second = between % 60 / 60;//秒

        return day + "天" + hour + "小时" + minute + "分钟" + second + "秒";
    }
    
    public static void main(String args[]) {
        System.out.println(DateUtil.date2Dispersion("2004-01-02 11:30:24", "2004-03-26 13:31:40"));
    }
}


Gavin.lee 2009-05-20 19:09 发表评论
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