[nginx][springmvc]java獲取ip

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;

@RestController
@Api("IpController")
public class IpController {

	private final Logger logger = LoggerFactory.getLogger(getClass());

	@GetMapping(value = "/test")
	@ApiOperation("測試")
	public String test(HttpServletRequest request) {
		logger.debug("test 正在運行。");

		String host = request.getRemoteHost();
		int port = request.getRemotePort();
		String addr = request.getRemoteAddr();
		logger.info("host:{}, port:{}, addr:{}", host, port, addr);

		String xRealIp = request.getHeader("X-Real-IP");
		String xForwardedFor = request.getHeader("X-Forwarded-For");// 若是多層代理，則須要獲取第一個（逗號分隔）
		String xRealPort = request.getHeader("X-Real-Port");
		String cookie = request.getHeader("Cookie");
		logger.info("X-Real-IP:{}, X-Forwarded-For:{}, X-Real-Port:{}, Cookie:{}", xRealIp, xForwardedFor, xRealPort, cookie);

        String xRealIp2 = request.getHeader("X-Real-IP2");
        logger.info("X-Real-IP2:{}", xRealIp2);// 其餘命名也能夠
        logger.info("X-real-ip:{}", request.getHeader("X-real-ip"));// 不區分大小寫也能夠

		return "success";
	}
}

server {
        listen 8830;
        charset UTF-8;
        access_log /etc/nginx/logs/access_https.log;
        error_log /etc/nginx/logs/error_https.log;
        add_header X-Frame-Options "SAMEORIGIN";
        server_tokens off;
        error_page 400 401 402 403 404 405 408 410 412 413 414 415 500 501 502 503 506  /busy.html;
        
        location /swagger-ui  {
            proxy_pass  http://130.51.23.14:8830;
            proxy_next_upstream http_502 http_504 http_404 http_403 error timeout invalid_header;                
            proxy_set_header        Host $host:$server_port;
            proxy_set_header        X-Real-IP       $remote_addr;
            proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header        X-Real-Port     $remote_port;
            proxy_set_header        Cookie          $http_cookie;
        }
    }

注意：不能location /swagger-ui，會不少資源404，沒法顯示頁面。