1.

How Is A Principal Defined?

Answer»

Inside the SecurityContextHolder we store DETAILS of the principal currently interacting with the application. Spring SECURITY uses an Authentication OBJECT to represent this information.

Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();

if (principal INSTANCEOF UserDetails) {

STRING username = ((UserDetails)principal).getUsername();

} else {

String username = principal.toString();

}

Inside the SecurityContextHolder we store details of the principal currently interacting with the application. Spring Security uses an Authentication object to represent this information.

Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();

if (principal instanceof UserDetails) {

String username = ((UserDetails)principal).getUsername();

} else {

String username = principal.toString();

}


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