从 Principal 中提取数据 Java Spring Boot

Question

I try extract data from Principal.

principal

How to do it? I need the login value from 'attributes' Collection. principal doesn't have such methods.

Answer 1

Something like this can work. It's always a bit nasty to get those properties.

    @RequestMapping("/user")
    public void user(Authentication authentication) {
        LinkedHashMap<String, Object> properties = (LinkedHashMap<String, Object>) authentication.getDetails();
        String loginProperty = properties.get("login");
        //Do what you want to do with your property
    }