转至 http://www.iteye.com/topic/1124070
只能获取到最外端口的ip,不能够具体到局域网的ip。
- public static String getIpAddr(HttpServletRequest request) {
- String ipAddress = null;
- //ipAddress = request.getRemoteAddr();
- ipAddress = request.getHeader("x-forwarded-for");
- if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
- ipAddress = request.getHeader("Proxy-Client-IP");
- }
- if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
- ipAddress = request.getHeader("WL-Proxy-Client-IP");
- }
- if(ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
- ipAddress = request.getRemoteAddr();
- if(ipAddress.equals("127.0.0.1")){
- //根据网卡取本机配置的IP
- InetAddress inet=null;
- try {
- inet = InetAddress.getLocalHost();
- } catch (UnknownHostException e) {
- e.printStackTrace();
- }
- ipAddress= inet.getHostAddress();
- }
- }
- //对于通过多个代理的情况,第一个IP为客户端真实IP,多个IP按照','分割
- if(ipAddress!=null && ipAddress.length()>15){ //"***.***.***.***".length() = 15
- if(ipAddress.indexOf(",")>0){
- ipAddress = ipAddress.substring(0,ipAddress.indexOf(","));
- }
- }
- return ipAddress;
- }