classpath目录

https://blog.csdn.net/u013158317/article/details/103766640
https://blog.csdn.net/wounler/article/details/123901149?spm=1001.2101.3001.6650.8&utm_medium=distribute.pc_relevant.none-task-blog-2~default~BlogCommendFromBaidu~Rate-8-123901149-blog-110118195.pc_relevant_paycolumn_v3&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2~default~BlogCommendFromBaidu~Rate-8-123901149-blog-110118195.pc_relevant_paycolumn_v3&utm_relevant_index=13