Log4j 2.3 发布，No.1 的 Java 日志框架

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#深圳# 6月10日 亚马逊AWSome Day云计算免费培训报名中
　　Log4j 2.3 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。
　　该版本改进内容包括：
　　New features:
　　o LOG4J2-984:? PatternLayout %highlight to support noConsoleNoAnsi like %style. Thanks to
　　Jonas H?pfner.
　　o LOG4J2-926:? Truncate from the end of text format modifier. Thanks to David Ohana.
　　
　　Fixed Bugs:
　　o LOG4J2-1009:? Incorrectly defined compressionType parameter to GelfLayout. Thanks to Mikael
　　St?ldal.
　　o LOG4J2-1008:? org.apache.logging.log4j.core.config.plugins.util.ResolverUtil.extractPath(URL)
　　incorrectly converts '+' characters to spaces. Thanks to Ralph Goers, Gary Gregory.
　　o LOG4J2-1007:? org.apache.logging.log4j.core.util#fileFromUri(URI uri) incorrectly converts
　　'+' characters to spaces. Thanks to Ralph Goers, Gary Gregory.
　　o LOG4J2-1003:? JUL Logger.throwing is mis-mapped to ERROR when it should be TRACE. Thanks
　　to Dan Armbrust.
　　o LOG4J2-965:? System.out no longer works after the Console appender and JANSI are initialized.
　　Thanks to Khotyn Huang.
　　o LOG4J2-993:? Deadlock would occur if appender thread creates a new Logger during reconfiguration.
　　
　　o LOG4J2-991:? Async root logger config should default includeLocation to false. Thanks to
　　Ryan Rupp.
　　o LOG4J2-985:? AbstractFilter should not implement equals() and hashCode(). Thanks to Sean
　　Dawson.
　　o LOG4J2-980:? Numerical overflow in BurstFilter not handled correctly. Thanks to Mikhail
　　Mazurskiy.
　　o LOG4J2-981:? Incorrect unlock in ProviderUtil. Thanks to Mikhail Mazurskiy.
　　o LOG4J2-966:? KeyStoreConfiguration.createKeyStoreConfiguration() ignores keyManagerFactoryAlgorithm.
　　Thanks to Gary Gregory.
　　o LOG4J2-976:? Using monitorInterval with YAML config file format causes JSONParseException.
　　Thanks to Matt Quinn.
　　o LOG4J2-964:? StringFormattedMessage serialization is incorrect. Thanks to Jonne Jyryl?.
　　
　　o LOG4J2-947:? A new StatusLoggerAdmin listener is added to StatusLogger every time the log
　　is reconfigured. Thanks to Stefan Wehner.
　　o LOG4J2-968:? SyslogLayout contains extra space. Thanks to Paul D Johe.
　　o LOG4J2-967:? log4j2.component.properties not read for all properties. Thanks to Stefan Wehner.
　　
　　o LOG4J2-971:? Another bad priority in Syslog messages. Thanks to Paul D Johe.
　　o LOG4J2-972:? org.apache.logging.log4j.core.net.ssl.TlsSyslogInputStreamReader does not need
　　to create temp Integer objects. Thanks to Gary Gregory.
　　o LOG4J2-974:? Typo in EventLogger documentation. Thanks to Daniel Galán y Martins.
　　
　　Changes:
　　o LOG4J2-998:? Make org.apache.logging.log4j.core.Logger#updateConfiguration protected. Thanks
　　to Mariano Gonzalez.

　　o LOG4J2-995:? Move UTF-8 constant from Charsets to Constants>　　
　　o LOG4J2-988:? Update LMAX Disruptor from 3.3.0 to 3.3.2. Thanks to Gary Gregory.
　　o LOG4J2-987:? Migrate tests from Logback 1.1.2 to 1.1.3. Thanks to Gary Gregory.
　　o LOG4J2-988:? Update tests to use ActiveMQ from 5.10 to 5.11.1. Thanks to Gary Gregory.
　　o LOG4J2-1004:? Update Jackson from 2.5.1 to 2.5.3.
　　o LOG4J2-1005:? Update Slf4j from 1.7.7 to 1.7.12.