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How can I have list of all users logged in (via spring security) my web application

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独厮守ぢ
独厮守ぢ 2020-11-27 12:27

I\'m using spring security in my web application, and now I want to have a list of all users who are logged in my program.

How can I have access to that list? Aren\'

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  • 清酒与你
    清酒与你 (楼主)
    2020-11-27 12:42

    Please correct me if I'm wrong.

    I think @Adam's answer is incomplete. I noticed that sessions already expired in the list were appearing again.

    public class UserController {
    @Autowired
    private SessionRegistry sessionRegistry;

    public void listLoggedInUsers() {
        final List allPrincipals = sessionRegistry.getAllPrincipals();

        for (final Object principal : allPrincipals) {
            if (principal instanceof SecurityUser) {
                final SecurityUser user = (SecurityUser) principal;

                List activeUserSessions =
                        sessionRegistry.getAllSessions(principal,
                                /* includeExpiredSessions */ false); // Should not return null;

                if (!activeUserSessions.isEmpty()) {
                    // Do something with user
                    System.out.println(user);
                }
            }
        }
    }
}



    Hope it helps.
    
    
    
             
    
                                                        
    
            
            
    
              
                
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