nginx多次转发后获取客户请求IP

菜蜂

/**
*
* @Description:获取客户端请求IP地址,解决使用nginx请求转发后不能获取问题
* @param @param request
* @param @return
* @return String
* @throws
*/
public String getIpAddr(HttpServletRequest request){
String ip=request.getHeader("X-Forwarded-For");
String localIP = "127.0.0.1";
if((ip == null)||(ip.length() == 0)||(ip.equalsIgnoreCase(localIP))||"unknown".equalsIgnoreCase(ip)){
ip = request.getHeader("Proxy-Client-IP");
}
if((ip == null)||(ip.length() == 0)||(ip.equalsIgnoreCase(localIP))||"unknown".equalsIgnoreCase(ip)){
ip = request.getHeader("WL-Proxy-Client-IP");
}
if((ip == null)||(ip.length() == 0)||(ip.equalsIgnoreCase(localIP))||"unknown".equalsIgnoreCase(ip)){
ip = request.getRemoteAddr();
}
if(ip!=null && ip.length()>15){
if(ip.indexOf(",")>0){
ip = ip.substring(0,ip.indexOf(","));
}
}
return ip;
}