在JavaWeb中很多时候需要获取客户端IP地址,但是有写人直接就用
request.getRemoteAddr();
获取,但是这种方式获取IP有缺陷,当前端使用的是Nginx等代理的话,获取的IP地址就是127.0.0.1,所以在获取IP时候需要对Nginx等做处理,下面是完整的程序:
package com.utils;
import javax.servlet.http.HttpServletRequest;
public class GetIP {
/**
*Auther:呐喊
*Function:获取客户端IP地址,针对Nginx等反代作处理
*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;
}
}