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package cn.chnmuseum.party.common.util;
import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.servlet.http.HttpServletRequest;
public class NetWorkUtil {
public static String getLoggableAddress(HttpServletRequest request) {
if (request == null) {
return null;
}
// X-Forwarded-For：Squid 服务代理
String ipAddress = request.getHeader("X-Forwarded-For");
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
// Proxy-Client-IP：apache 服务代理
ipAddress = request.getHeader("Proxy-Client-IP");
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
// WL-Proxy-Client-IP：weblogic 服务代理
ipAddress = request.getHeader("WL-Proxy-Client-IP");
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
// HTTP_CLIENT_IP：有些代理服务器
ipAddress = request.getHeader("HTTP_CLIENT_IP");
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
// X-Real-IP：nginx服务代理
ipAddress = request.getHeader("X-Real-IP");
}
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getHeader("HTTP_X_FORWARDED_FOR");
}
// 有些网络通过多层代理(路由)，那么获取到的ip就会有多个，一般都是通过逗号（,）分割开来，并且第一个ip为客户端的真实IP
if (ipAddress != null && ipAddress.length() != 0) {
// 多个时，取第一个非unknown的ip
final String[] arr = ipAddress.split(",");
for (final String str : arr) {
if (!"unknown".equalsIgnoreCase(str)) {
ipAddress = str;
break;
}
}
}
if (("127.0.0.1").equals(ipAddress) || ("0:0:0:0:0:0:0:1".equals(ipAddress))) {
// 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();
}
// 还是不能获取到，最后再通过request.getRemoteAddr();获取
if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
ipAddress = request.getRemoteAddr();
}
return ipAddress;
}
}