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nginx代理后如何获取request的真实ip

2017-11-13 22:03 621 查看

今天写接口时需要获取用户真实ip,但是线上服务器是通过nginx代理的,通过request.getRemoteAddr();获取到一直是127.0.0.1.很头疼.,解决办法如下

1.首先要在nginx中增加一个header,即把用户ip保存下来

在nginx.conf中增加

proxy_set_header X-real-ip           $remote_addr;

示例

location / {
#try_files $uri $uri/ /index.html;
proxy_set_header X-real-ip           $remote_addr;
proxy_pass http://127.0.0.1:8080/; }

2.修改程序中获取ip的方法,获取 X-real-ip的值

private String getUserIp(HttpServletRequest request) {
String ip = request.getHeader("X-real-ip");//先从nginx自定义配置获取
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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();
}
return ip;
}

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标签： java

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