Spring Cloud Gateway 整合 Spring Security 统一鉴权

Spring-Cloud-Gatewway

Spring Cloud Gateway是基于[Spring Boot 2.x](https://spring.io/projects/spring-boot#learn)，[Spring WebFlux](https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html)和[Project Reactor](https://projectreactor.io/docs)[构建的](https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html)。结果，当您使用Spring Cloud Gateway时，许多您熟悉的同步库（例如，Spring Data和Spring Security）和模式可能不适用。若是您不熟悉这些项目，建议您在使用Spring Cloud Gateway以前先阅读它们的文档以熟悉一些新概念。