sa-token是什么？

sa-token官网Sa-Token 是一个轻量级 Java 权限认证框架，主要解决：登录认证、权限认证、单点登录、OAuth2.0、分布式Session会话、微服务网关鉴权 等一系列权限相关问题。

springboot前后端分离集成sa-token

maven

<!-- Sa-Token 权限认证，在线文档：https://sa-token.cc -->
<dependency><groupId>cn.dev33</groupId><artifactId>sa-token-spring-boot-starter</artifactId><version>1.38.0</version>
</dependency>

我的其他依赖，一并展示出来了

 <properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring-boot.version>2.6.13</spring-boot.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><scope>runtime</scope><optional>true</optional></dependency><dependency><!--配合日志使用--><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--mysql--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId&