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Joda-Time

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·¢±íÓÚ 2017-8-3 19:26:44 | ÏÔʾȫ²¿Â¥²ã |ÔĶÁģʽ
https://www.ibm.com/developerworks/cn/java/j-jodatime.html
[size=1.0625]ΪʲôҪʹÓà Joda£¿¿¼ÂÇ´´½¨Ò»¸öÓÃʱ¼ä±íʾµÄij¸öËæÒâµÄʱ¿Ì ¡ª ±ÈÈ磬2000 Äê 1 Ô 1 ÈÕ 0 ʱ 0 ·Ö¡£ÎÒÈçºÎ´´½¨Ò»¸öÓÃʱ¼ä±íʾÕâ¸ö˲¼äµÄ JDK ¶ÔÏó£¿Ê¹Óà java.util.Date£¿ÊÂʵÉÏÕâÊÇÐв»Í¨µÄ£¬ÒòΪ×Ô JDK 1.1 Ö®ºóµÄÿ¸ö Java °æ±¾µÄ Javadoc ¶¼ÉùÃ÷Ó¦µ±Ê¹Óà java.util.Calendar¡£Date Öв»ÔÞ³ÉʹÓõĹ¹Ô캯ÊýµÄÊýÁ¿ÑÏÖØÏÞÖÆÁËÄú´´½¨´ËÀà¶ÔÏóµÄ;¾¶¡£
[size=1.0625]È»¶ø£¬Date ȷʵÓÐÒ»¸ö¹¹Ô캯Êý£¬Äú¿ÉÒÔÓÃÀ´´´½¨ÓÃʱ¼ä±íʾij¸ö˲¼äµÄ¶ÔÏ󣨳ý ¡°ÏÖÔÚ¡± ÒÔÍ⣩¡£¸Ã·½·¨Ê¹ÓþàÀë 1970 Äê 1 Ô 1 ÈÕ×Óʱ¸ñÁÖÍþÖαê׼ʱ¼ä£¨Ò²³ÆΪ epoch£©ÒÔÀ´µÄºÁÃëÊý×÷Ϊһ¸ö²ÎÊý£¬¶ÔʱÇø½øÐÐУÕý¡£¿¼Âǵ½ Y2K ¶ÔÈí¼þ¿ª·¢ÆóÒµµÄÖØÒªÐÔ£¬Äú¿ÉÄÜ»áÈÏΪÎÒÒѾ­¼ÇסÁËÕâ¸öÖµ ¡ª µ«ÊÇÎÒûÓС£Date Ò²²»¹ýÈç´Ë¡£
[size=1.0625]ÄÇô Calendar ÓÖÈçºÎÄØ£¿ÎÒ½«Ê¹ÓÃÏÂÃæµÄ·½Ê½´´½¨±ØÐèµÄʵÀý£º
Calendar calendar = Calendar.getInstance();
calendar.set(2000, Calendar.JANUARY, 1, 0, 0, 0);



[size=1.0625]ʹÓà Joda£¬´úÂëÓ¦¸ÃÀàËÆÈçÏÂËùʾ£º
DateTime dateTime = new DateTime(2000, 1, 1, 0, 0, 0, 0);

[size=1.0625]ÕâÒ»Ðмòµ¥´úÂëûÓÐÌ«´óµÄÇø±ð¡£µ«ÊÇÏÖÔÚÎÒ½«Ê¹ÎÊÌâÉÔ΢¸´ÔÓ»¯¡£¼ÙÉèÎÒÏ£ÍûÔÚÕâ¸öÈÕÆÚÉϼÓÉÏ 90 Ìì²¢Êä³ö½á¹û¡£Ê¹Óà JDK£¬ÎÒÐèҪʹÓÃÇåµ¥ 1 ÖеĴúÂ룺
Çåµ¥ 1. ÒÔ JDK µÄ·½Ê½Ïòijһ¸ö˲¼ä¼ÓÉÏ 90 Ìì²¢Êä³ö½á¹û
  1. Calendar calendar = Calendar.getInstance();
  2. calendar.set(2000, Calendar.JANUARY, 1, 0, 0, 0);
  3. SimpleDateFormat sdf =
  4.   new SimpleDateFormat("E MM/dd/yyyy HH:mm:ss.SSS");
  5. calendar.add(Calendar.DAY_OF_MONTH, 90);
  6. System.out.println(sdf.format(calendar.getTime()));
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[size=1.0625]ʹÓà Joda£¬´úÂëÈçÇåµ¥ 2 Ëùʾ£º
Çåµ¥ 2. ÒÔ Joda µÄ·½Ê½Ïòijһ¸ö˲¼ä¼ÓÉÏ 90 Ìì²¢Êä³ö½á¹û
  1. DateTime dateTime = new DateTime(2000, 1, 1, 0, 0, 0, 0);
  2. System.out.println(dateTime.plusDays(90).toString("E MM/dd/yyyy HH:mm:ss.SSS");
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