后端 【Java】获取resource目录下文件或地址 https://mp.weixin.qq.com/s?__biz=MzI4Njc5NjM1NQ==&mid=2247524071&idx=2&sn=673bd494a6395ac1e839afa909447c60&chksm=ebd5a1cbdca228ddaf384faed84fc734ca0387425cc4e33d616087a5ed20a9322a95936031c4&scene=27