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- Calendar calendar = Calendar.getInstance();
- calendar.set(2000, Calendar.JANUARY, 1, 0, 0, 0);
- SimpleDateFormat sdf =
- new SimpleDateFormat("E MM/dd/yyyy HH:mm:ss.SSS");
- calendar.add(Calendar.DAY_OF_MONTH, 90);
- System.out.println(sdf.format(calendar.getTime()));
¸´ÖÆ´úÂë[size=1.0625]ʹÓà Joda£¬´úÂëÈçÇåµ¥ 2 Ëùʾ£º Çåµ¥ 2. ÒÔ Joda µÄ·½Ê½Ïòijһ¸ö˲¼ä¼ÓÉÏ 90 Ìì²¢Êä³ö½á¹û- DateTime dateTime = new DateTime(2000, 1, 1, 0, 0, 0, 0);
- System.out.println(dateTime.plusDays(90).toString("E MM/dd/yyyy HH:mm:ss.SSS");
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