1.基本命令
2.多模塊
2.1 如何創建多模塊
https://blog.csdn.net/sinat_34344123/article/details/79080601
2.2 模塊之間互相調用
https://blog.csdn.net/qq_21383435/article/details/82708772
3.maven引用問題
3.1 無法引入問題
3.1.1 mvn無法引入包
https://blog.csdn.net/qq_21383435/article/details/82715252
3.2 衝突
3.2.1 log4j循環引用衝突
Detected both log4j-over-slf4j.jar AND bound slf4j-log4j12.jar on the class
https://blog.csdn.net/qq_21383435/article/details/82720995