https://www.codercto.com/a/51244.html
https://juejin.im/post/5c1635dde51d452a606844b4
https://juejin.im/post/5bded28451882516bd2c4b39#heading-1
https://ninghao.net/blog/7384
reflect-metadata元数据
原文：https://www.cnblogs.com/little-ab/p/13217465.html
