Store the userId with Spring Security Authentication

Question

I need to get the userId when the authentication is loading the login, so that I can store it and use it later to gather more information about the by its ID.

Here is my

Answer 1

You can have your own AuthenticationProvider to handler your login:

@Component
public class AuthenticationProviderBean implements AuthenticationProvider {

@Autowired
private UserloginDAO userloginDAO;

@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
    String username = authentication.getName();
    String password = null;
    User user = userloginDAO.getUsername(username);
    if(user == null || !userLoginDAO.auth(user.getPassword(), password)){
        throw new BadCredentialsException("Login Unauthenticated");
    }
    UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username,
                            password, Arrays.asList(new MyGrantedAuthority(user)));
    token.setDetails(user);
    return token;
}

@Override
public boolean supports(Class authentication) {
    return authentication.equals(UsernamePasswordAuthenticationToken.class);
}

public class MyGrantedAuthority implements GrantedAuthority{

    private static final long serialVersionUID = 5202669007419658413L;

    private UserData user;

    public MyGrantedAuthority() {
        super();
    }

    public MyGrantedAuthority(UserData user){
        this.user = user;
    }

    @Override
    public String getAuthority() {
        return user.getRole();
    }

}
}

Then you can get current user like this:

User user = (User)SecurityContextHolder.getContext().getAuthentication.getDetails();