Joda-Time v2.9.1 发布，更新如下： 2.9.1 Bug 修复 ------------------ - Fix bug introduced by Long.MIN_VALUE and Long.MAX_VALUE changes [#328] 对 2.9 的改进 ------------------- - Faster parsing of time-zone identifiers [#282] - Added Interval.parseWithOffset(String) [#299, #296] Provides a way to parse the fixed offset in an interval string - Add DateTimeFormatter methods for StringBuilder [#298] - Add Russian period translations [#320] - Add Italian period translations [#312] - Add Czech period translations [#313] - Clarify that PeriodFormatterBuilder is in an invalid state once built [#309] - Allow DateTime and Interval to refer to values at Long.MIN_VALUE and Long.MAX_VALUE [#297, #190] A DateTime may be created with any millisecond value, however at the very edges there may be some undesirable effects, for example always using UTC instead of the time-zone - Better error message for malformed tzdb files [#319] - Better error message for interval constructor [#321] 2.8 和 2.9 的兼容 --------------------------------- Build system - Yes Binary compatible - Yes Source compatible - Yes Serialization compatible - Yes Data compatible - Yes - DateTimeZone data updated to version 2015g Semantic compatible - Yes 修复 2.9 的bug ---------------- - Fixed to handle JDK 8u60 [#288, #291] Without this fix, formatting a time-zone will print "+00:00" instead of "GMT" for the GMT time-zone - Fix parsing of basic form ISO style where year has unnecessary plus sign [#86] For example, +20151030 will now be correctly parsed as year 2015. - Fix overflow bug in intervals [#315]详细更新请看： JodaTime 提供了一组Java类包用于处理包括ISO8601标准在内的date和time。可以利用它把JDK Date和Calendar类完全替换掉，而且仍然能够提供很好的集成。 Joda-Time主要的特点包括： 1. 易于使用:Calendar让获取"正常的"的日期变得很困难，使它没办法提供简单的方法，而Joda-Time能够 直接进行访问域并且索引值1就是代表January。 2. 易于扩展：JDK支持多日历系统是通过Calendar的子类来实现，这样就显示的非常笨重而且事实 上要实现其它日历系统是很困难的。Joda-Time支持多日历系统是通过基于Chronology类的插件体系来实现。 3. 提供一组完整的功能：它打算提供 所有关系到date-time计算的功能．Joda-Time当前支持6种日历系统，而且在将来还会继续添加。有着比JDK Calendar更好的整体性能等等。 Joda-Time v2.9.1 发布，Java 日期时间处理库下载地址
