Get client's browser name and ip address using Spring

Question

I'm trying to get a list of all online users. I'm planning to do so, using SpringRegistry. But i also have to get user's browser info and ip address. I know that i could do it in javascript, but i need to retrieve all user's details, not only current one's.

EDIT

Here's my code:

 @GetMapping("/")
 public String index(HttpServletRequest request){
 String ip=request.getRemoteAddr(); // "0:0:0:0:0:0:0:1"
 return "index";
}

Answer 1

Just add HttpServletRequest object in your method and get the ip using getRemoteAddr() method.No Spring required.Something like this :

public void doSomething(HttpServletRequest request){
System.out.print(request.getRemoteAddr()); // Prints ip address 
}