https://connect.qq.com/manage.html#/

Spring Boot Oauth2 with H2 database
https://github.com/rajithd/spring-boot-oauth2

使用oauth2.0写的简单的client和认证Server,使用了@EnableOAuth2Sso注解来模拟单点登陆
https://github.com/jiangchao123/oauthserver

Spring-Boot projects using: Zuul, Cloud OAuth2 and OAuth2Sso
https://github.com/flindby/spring-oauth2-zuul


springsecurity oauth2 认证方式实现 数据库存储
https://github.com/shotcat/oauth2

Spring Boot Framework - Maven - OAuth2 - JWT - MySql - Email Sender
https://github.com/cpapidas/Spring-Boot-OAuth2-JWT-MySQL

1、使用Redis 存储AccessToken 2、使用MySQL 存储ClientDetails和UserDetails信息
https://github.com/zth390872451/oauth2-redis-mysql

使用spring-cloud-security-oauth2来实现oauth server和resource server，oauth Server和resource Server分开，resource Server实现了两种方式，一种是当用token调用受保护资源时，使用RemoteTokenServices来去oauth server去校验。另一种是共享数据库，然后资源服务器自己通过数据库进行校验。
https://github.com/jiangchao123/spring-cloud-security-oauth2-jdbc


A REST back-end framework, integrated by Spring Boot, MyBatis and Spring Security OAuth
https://github.com/ShawnyXiao/SpringBoot-MyBatis