Finding user ip address

Question

I have created web application using JSF 2.0. I have hosted it on hosting site and the server of the hosting site is based in US.

My client want the details of the u

Answer 1

I went ahead with

HttpServletRequest request = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();
String ipAddress = request.getHeader("X-FORWARDED-FOR");
if (ipAddress == null) {
    ipAddress = request.getRemoteAddr();
}
System.out.println("ipAddress:" + ipAddress);