IP 가져오기
public class GetIP { private static final String[] IP_HEADER_CANDIDATES = { "X-Forwarded-For", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_X_FORWARDED_FOR", "HTTP_X_FORWARDED", "HTTP_X_CLUSTER_CLIENT_IP", "HTTP_CLIENT_IP", "HTTP_FORWARDED_FOR", "HTTP_FORWARDED", "HTTP_VIA", "REMOTE_ADDR" }; public static String getClientIpAddress(HttpServletRequest request) { for (String header : IP_HEADER_CA..