nginx反向代理获取客户端真实ip

nginx设置

location / {

root html;

index index.html index.htm;

proxy_pass http://localhost:8080;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $remote_addr;

}

Java获取被nginx反向代理后客户端的真实IP

package com.songlong.love.utils;
import javax.servlet.http.HttpServletRequest;
public class IpUtil {
    //获取客户端真实IP地址
    public static String getRemoteAddress(HttpServletRequest request) {
        String unknown = "unknown";
        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("HTTP_CLIENT_IP");
        }
        if (ip == null || ip.length() == 0 || unknown.equalsIgnoreCase(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        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();
        }
        //对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
        if (ip != null && ip.length() > 0) {
            String[] ips = ip.split(",");
            if (ips.length > 0) {
                ip = ips[0];
            }
        }
        return ip;
    }
}

spring boot获取当前请求的请求

 HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();