web 项目获取当前session所有的session 用户列表

@Configuration
public class HttpSessionConfig {

    private static final Map<String, HttpSession> sessions = new HashMap<>();

    public List<HttpSession> getActiveSessions() {
        return new ArrayList<>(sessions.values());
    }

    @Bean
    public HttpSessionListener httpSessionListener() {
        return new HttpSessionListener() {
            @Override
            public void sessionCreated(HttpSessionEvent hse) {
                sessions.put(hse.getSession().getId(), hse.getSession());
            }

            @Override
            public void sessionDestroyed(HttpSessionEvent hse) {
                sessions.remove(hse.getSession().getId());
            }
        };
    }
}

 

通过该类的  getActiveSessions()  就可以获得所有的 session 集合