novelly的专栏

The log4j can be configured both programmatically and externally using special configuration files. External configuration is most preferred, because to take effect it doesn’t require change in appl

毕业又赶上本科的同学会，还去骑车环了趟崇明岛，六月貌似就没消停过，不过终于这些事情基本上都结束了，我也可以好好的看些书、读些源码、写点博客了。 Log4J将写日志功能抽象成七个核心类/接口：Logger、LoggerRepository、Level、LoggingEvent、Appender、Layout、ObjectRender。其类图如下： 更详细的，实现Log4J