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This article mainly introduces how to solve the problem of how to use nginx to obtain IP address is 127.0.0.1, it has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand it.

Get the ip tool

Import lombok.extern.slf4j.Slf4j;import org.apache.commons.lang3.StringUtils;import javax.servlet.http.HttpServletRequest / * * IP address * * @ date 12:57:02 * / @ Slf4jpublic class IPUtils {/ * obtain the IP address * * using reverse proxy software such as Nginx, the IP address cannot be obtained through request.getRemoteAddr () * if multiple reverse proxies are used, the value of X-Forwarded-For is not one, but a string of IP addresses The first valid IP string in X-Forwarded-For that is not unknown, the real IP address * / public static String getIpAddr (HttpServletRequest request) {String ip = null Try {ip = request.getHeader ("x-forwarded-for"); if (StringUtils.isEmpty (ip) | | "unknown" .equals IgnoreCase (ip)) {ip = request.getHeader ("Proxy-Client-IP") } if (StringUtils.isEmpty (ip) | | ip.length () = = 0 | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("WL-Proxy-Client-IP");} if (StringUtils.isEmpty (ip) | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("HTTP_CLIENT_IP") } if (StringUtils.isEmpty (ip) | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("HTTP_X_FORWARDED_FOR");} if (StringUtils.isEmpty (ip) | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getRemoteAddr () }} catch (Exception e) {log.error ("IPUtils ERROR", e) } / / using a proxy, get the first IP address if (StringUtils.isEmpty (ip) & & ip.length () > 15) {if (ip.indexOf (",") > 0) {ip = ip.substring (0, ip.indexOf (","));}} return ip;}}

If you use nginx, the ip you get will be 127.0.0.1

Add the following configuration to the agent: proxy_set_header x-forwarded-for $remote_addr

Server {listen 80; server_name api.qimen.pro; # server file upload size limit client_max_body_size 10m; location / {proxy_pass http://gymserver; proxy_set_header x-forwarded-for $remote_addr }} Thank you for reading this article carefully. I hope the article "how to solve the problem of how to use nginx to obtain IP addresses is 127.0.0.1" will be helpful to everyone. At the same time, I also hope you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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