IP解析工具类

package com.kitsmart.mm.util;


import javax.servlet.http.HttpServletRequest;




public class IPUtil {
public static String getIp2(HttpServletRequest request) {
String ip = request.getHeader("X-Forwarded-For");
if (StringUtil.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {
// 多次反向代理后会有多个ip值，第一个ip才是真实ip
int index = ip.indexOf(",");
if (index != -1) {
return ip.substring(0, index);
} else {
return ip;
}
}
ip = request.getHeader("X-Real-IP");
if (StringUtil.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {
return ip;
}
return request.getRemoteAddr();
}


public static String getIpAddr(HttpServletRequest request) {

if (null == request) {
return null;
}


String ip = null;
ip = request.getHeader("X-Forwarded-For");
if (StringUtil.isNotEmpty(ip) && !"unKnown".equalsIgnoreCase(ip)) {
// 多次反向代理后会有多个ip值，第一个ip才是真实ip
int index = ip.indexOf(",");
if (index != -1) {
return ip.substring(0, index);
} else {
return ip;
}
}


String proxs[] = { "X-Forwarded-For", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_CLIENT_IP", "HTTP_X_FORWARDED_FOR" };


for (String prox : proxs) {
ip = request.getHeader(prox);
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
continue;
} else {
break;
}
}


if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
return request.getRemoteAddr();
}


return ip;


}


}