location / {
        ***********之前代码*******;
        proxy_set_header host                $host;
        proxy_set_header X-forwarded-for $proxy_add_x_forwarded_for;//设置代理服务器ip头，代码获取时的参数
        proxy_set_header X-Real-IP  $remote_addr; //允许将发送到被代理服务器的请求头重新定义或者增加一些字段，显示真实的客户端的IP
}

            //Springmvc方法中添加HttpServletRequest request参数
            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.getRemoteAddr();
            }
            Utils.log.info("【ip:" + ip + "】");//自己代码里的日志打印