maven 技能收集
1. maven依赖相关知识 2.Resolving conflicts using the dependency tree（查看依赖冲突） mvn dependency:tree -Dverbose -Dincludes=commons-collections
1. maven依赖相关知识 2.Resolving conflicts using the dependency tree（查看依赖冲突） mvn dependency:tree -Dverbose -Dincludes=commons-collections