在JavaWeb中很多時候需要獲取客戶端IP地址,但是有寫人直接就用
request.getRemoteAddr();
獲取,但是這種方式獲取IP有缺陷,當前端使用的是Nginx等代理的話,獲取的IP地址就是127.0.0.1,所以在獲取IP時候需要對Nginx等做處理,下面是完整的程序:
package com.utils;
import javax.servlet.http.HttpServletRequest;
public class GetIP {
/**
*Auther:吶喊
*Function:獲取客戶端IP地址,針對Nginx等反代作處理
*Date:2016-11-01
*URL:http://www.htcdc.com
*/
public String getIP(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.getHeader("X-Real-IP");
}
if(ip==null || ip.length()==0 || "unknown".equalsIgnoreCase(ip)){
ip=request.getRemoteAddr();
}
return ip;
}
}