@RequestMapping(value = {"/", ""})
public String start(Principal principal, Model model) {
String currentUser = principal.getName();
return currentUser;
}
@RequestMapping(value = {"/", ""})
public String currentUserName(Authentication authentication) {
return authentication.getName();
}
Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();
if (principal instanceof UserDetails) {
String username = ((UserDetails)principal).getUsername();
} else {
String username = principal.toString();
}
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