Log4j

建一个Maven简单项目  pom.xml引入log4j 1 2 3 4 5 < dependency >      < groupId >log4j</ groupId >      < artifactId >log4j</ artifactId >      < version >1.2.17</ version > </ dependency > log4j.properties（把Deb

>>阅读原文<<