LocalHost IP 가져오기

[클라이언트 ip 가져오기]

public static String getIp(HttpServletRequest request){
    String result = null;
    
    result = request.getHeader("X-Forwarded-For");
    
    if (result == null || result.length() == 0 || "unknown".equalsIgnoreCase(result)) {
        result = request.getHeader("Proxy-Client-IP");
    }
    if (result == null || result.length() == 0 || "unknown".equalsIgnoreCase(result)) {
        result = request.getHeader("WL-Proxy-Client-IP");
    }
    if (result == null || result.length() == 0 || "unknown".equalsIgnoreCase(result)) {
        result = request.getHeader("HTTP_CLIENT_IP");
    }
    if (result == null || result.length() == 0 || "unknown".equalsIgnoreCase(result)) {
        result = request.getHeader("HTTP_X_FORWARDED_FOR");
    }
    if (result == null || result.length() == 0 || "unknown".equalsIgnoreCase(result)) {
        result = request.getRemoteAddr();
    }
    
    return result==null?"":result; 
}
 

 

[서버 ip 가져오기]

 public static String getIp(){
    String result = null;
    try {
        result = InetAddress.getLocalHost().getHostAddress();
    } catch (UnknownHostException e) {
        result = "";
    }
   return result; 
}

 

찾다보니 아래와 같은 글도 찾게 되었다.

https://pkgonan.github.io/2018/06/InetAddress-getLocalHost