springsecurity+oauth2实现demo

https://www.cnblogs.com/hellxz/p/oauth2_oauthcode_pattern.html     四种模式最简单样例

https://www.cnblogs.com/tqlin/p/11358470.html    

https://www.jianshu.com/p/90c8c75e3aad      oauth2模式图解

https://blog.csdn.net/m0_46945278/article/details/106143375       权限管理数据库表结构设计