diy:
关键字： springboot sso；public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)；
01. https://github.com/ITDragonBlog/daydayup/blob/7785d40665190124c98049984b8033fe920e95cd/SpringBoot-SSO/itdragon-service-test-sso/src/main/java/com/itdragon/interceptors/UserLoginHandlerInterceptor.java ; ★★★★★
(详解：https://www.cnblogs.com/zzp0320/p/8109327.html)
02.https://github.com/yzgod/tw-sso ;
转载：
https://hellokoding.com/hello-single-sign-on-sso-with-json-web-token-jwt-spring-boot/
https://github.com/mefernandez/spring-multi-module-oauth-sso
https://github.com/prasenjit-net/sso-demo
https://github.com/making/oauth2-sso-demo
https://github.com/Prussia/playSSO
https://github.com/ryan-shi/spring-boot-sso ★★★★★
https://github.com/hellokoding/single-sign-on-out-auth-jwt-cookie-redis-springboot-freemarker
https://github.com/hellokoding/hello-sso-jwt
https://github.com/hellokoding/hello-sso-jwt-auth