UserDetails
UserDetails is a Spring Security interface representing a user’s identity, credentials, granted authorities, and account status.
Spring Security in Action, Second Edition
UserDetails is a Spring Security representation of a user's identity, password, and granted authorities.
- How it is used
- Represents application users so Spring Security can authenticate them and evaluate their authorities during authorization.
- How deep it goes
- Explains every interface method and demonstrates minimal and parameterized implementations, but defers password encoding details.
- Examples
- Uses DummyUser, SimpleUser, an in-memory user service, a john user, and authenticated cURL requests to test endpoint access.
- What you can do after
- Build it from scratch: implement UserDetails, provide authorities and status rules, register users, and test authenticated endpoint access.
Read how Spring Security in Action, Second Edition explains UserDetails →
Spring in Action, Sixth Edition
UserDetails is a Spring Security interface that exposes a user's credentials, authorities, and account-status information to the security framework.
- How it is used
- Connects application user records to Spring Security authentication and authorization.
- How deep it goes
- Defines authorities, credentials, and account-status methods through a concrete entity implementation.
- Examples
- Uses a Taco Cloud User entity, ROLE_USER authority, active-account booleans, and username-based repository lookup.
- What you can do after
- Apply via a UserDetails implementation and custom UserDetailsService that return database-backed users to Spring Security.
Read how Spring in Action, Sixth Edition explains UserDetails →
Related concepts
- Spring Security Userproduced by · Spring Security User is a framework-provided representation of an authenticated user containing a username, password, and granted authorities.
- getAuthorities()has part · getAuthorities() is a UserDetails method that returns the authorities granted to the user.
- UserDetailsServiceproduced by · UserDetailsService is a Spring Security interface for retrieving user-specific data required during authentication.
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