# 用户详细信息
[UserDetails
](https://DOCS. Spring.io/ Spring-security/site/DOCS/5.6.2/api/org/springframework/security/core/userdetails/userdetails.html)是由[UserDetailsService
](user-details-service.html# Servlet-attentification-userdetailssservice)返回的。[DaoAuthenticationProvider
](DAO-Authentication-Provider.html# Servlet-Authentication-DaoAuthenticationProvider)验证UserDetails
,然后返回一个[Authentication
](../architecture.html# Servlet-Authentication-Authentication),其主体是由配置的UserDetailsService
返回的UserDetails
。