JSP获取客户端IP的方法


request.getRemoteAddr();



获得客户端真实IP地址的方法一：
　

　public String getIpAddr(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.getRemoteAddr();　　}　　return ip;　　}