請求Requst中獲取訪問請求的客戶端IP
阿新 • • 發佈:2019-01-26
請求Requst中獲取訪問請求的客戶端IP
在JSP裡,獲取客戶端的IP地址的方法是:request.getRemoteAddr(),這種方法在大部分情況下都是有效的。但是在通過了Apache,Squid,nginx等反向代理軟體就不能獲取到客戶端的真實IP地址了。
如果使用了反向代理軟體,將http://192.168.1.110:2046/ 的URL反向代理為 http://wwwjbbenuploudpic / 的URL時,用request.getRemoteAddr()方法獲取的IP地址是:127.0.0.1 或 192.168.1.110,而並不是客戶端的真實IP。
經過代理以後,由於在客戶端和服務之間增加了中間層,因此伺服器無法直接拿到客戶端的
public static String getIpAddress(HttpServletRequest request) { String ip = request.getHeader("x-forwarded-for"); if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("WL-Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_CLIENT_IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_X_FORWARDED_FOR"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } return ip; }