JSP 접속 ip 확인

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
 
<%!
public String getClientIP(HttpServletRequest request) {
    String ip = request.getHeader("X-FORWARDED-FOR"); 
    
    if (ip == null || ip.length() == 0) {
        ip = request.getHeader("Proxy-Client-IP");
    }
 
    if (ip == null || ip.length() == 0) {
        ip = request.getHeader("WL-Proxy-Client-IP");  // 웹로직
    }
 
    if (ip == null || ip.length() == 0) {
        ip = request.getRemoteAddr() ;
    }
    
    return ip;
 
}
%>
 
<%=getClientIP(request) %>