获取ip工具类-IPUtils

今天药忘吃喽~ 2022-12-31 07:30 164阅读 0赞

public class IPUtils { 
    	private static Logger logger = LoggerFactory.getLogger(IPUtils.class);
    
    	/** * 获取IP地址 * * 使用Nginx等反向代理软件， 则不能通过request.getRemoteAddr()获取IP地址 * 如果使用了多级反向代理的话，X-Forwarded-For的值并不止一个，而是一串IP地址，X-Forwarded-For中第一个非unknown的有效IP字符串，则为真实IP地址 */
    	public static String getIpAddr(HttpServletRequest request) { 
        	String ip = null;
            try { 
                ip = request.getHeader("x-forwarded-for");
                if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) { 
                    ip = request.getHeader("Proxy-Client-IP");
                }
                if (StringUtils.isEmpty(ip) || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { 
                    ip = request.getHeader("WL-Proxy-Client-IP");
                }
                if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) { 
                    ip = request.getHeader("HTTP_CLIENT_IP");
                }
                if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) { 
                    ip = request.getHeader("HTTP_X_FORWARDED_FOR");
                }
                if (StringUtils.isEmpty(ip) || "unknown".equalsIgnoreCase(ip)) { 
                    ip = request.getRemoteAddr();
                }
            } catch (Exception e) { 
            	logger.error("IPUtils ERROR ", e);
            }
            
    // //使用代理，则获取第一个IP地址
    // if(StringUtils.isEmpty(ip) && ip.length() > 15) { 
    // if(ip.indexOf(",") > 0) { 
    // ip = ip.substring(0, ip.indexOf(","));
    // }
    // }
            
            return ip;
        }
    	
    }