LOG4J 2.7 发布了。
Log4j是Apache的一个开放源代码项目，通过使用Log4j，我们可以控制日志信息输送的目的地是控制台、文件、GUI组件、甚至是套接口服务 器、NT的事件记录器、UNIX Syslog守护进程等;我们也可以控制每一条日志的输出格式;通过定义每一条日志信息的级别，我们能够更加细致地控制日志的生成过程。最令人感兴趣的就 是，这些可以通过一个配置文件来灵活地进行配置，而不需要修改应用的代码。
新特性：
o LOG4J2-1597: Add a ScriptAppenderSelector to create an Appender specified by a Script.
o LOG4J2-1349: (GC) Added support for garbage-free ThreadContext map. Disabled by default,
users need to enable this explicitly.
o LOG4J2-1447: (GC) Changed LogEvent's internal data structure for context data to be garbage-free.
Added method LogEvent#getContextData(), deprecated method #getContextMap().
o LOG4J2-1010: Users can now inject context data from other sources than ThreadContext. Values
can be any Object, not just Strings. Thanks to Mikael Ståldal.
o LOG4J2-1568: Added support for java.util.concurrent.LinkedTransferQueue to AsyncAppender.
Bug 修复：
o LOG4J2-1618: Fixed ClassCastException when using JUL logging during shutdown. Thanks to
Raman Gupta.
o LOG4J2-1620: 2.7-rc1: RollingFileAppender immediateFlush default value should be true,
not false. Thanks to Sascha Scholz.
o LOG4J2-1611: Improved performance of context data injector for web applications to be on
par with standalone applications.
o LOG4J2-1591: Introduced new interface LifeCycle2 with stop(long,TimeUnit) method to avoid
breaking backwards compatibility with new Configurator.shutdown(LoggerContext, long, TimeUnit)
API.
o LOG4J2-1590: Fixed issue with filters extending AbstractFilter that did not override methods
with unrolled varargs.
o LOG4J2-1583: Fixed scrambled log messages triggered by nested logging from toString() method
of a logging parameter object. Thanks to Larry West.
软件详情：http://logging.apache.org/log4j/2.x/
下载地址：http://logging.apache.org/log4j/2.x/download.html
来自:开源中国社区
