I am working on Spring MVC controller project in which I am making a GET URL call from the browser -
Below is the url by which I am making a GET call from the browser -
http://127.0.0.1:8080/testweb/processing?workflow=test&conf=20140324&dc=all
And below is the code in which the call comes after hitting at the browser -
@RequestMapping(value = "processing", method = RequestMethod.GET)
public @ResponseBody ProcessResponse processData(@RequestParam("workflow") final String workflow,
@RequestParam("conf") final String value, @RequestParam("dc") final String dc) {
System.out.println(workflow);
System.out.println(value);
System.out.println(dc);
// some other code
}
Problem Statement:-
Now is there any way, I can extract IP Address from some header? Meaning I would like to know from which IP Address, call is coming, meaning whoever is calling above URL, I need to know their IP Address. Is this possible to do?
This question is related to
java
spring-mvc
ip-address
Below is the Spring way, with autowired
request bean in @Controller
class:
@Autowired
private HttpServletRequest request;
System.out.println(request.getRemoteHost());
In my case, I was using Nginx in front of my application with the following configuration:
location / {
proxy_pass http://localhost:8080/;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
add_header Content-Security-Policy 'upgrade-insecure-requests';
}
so in my application I get the real user ip like so:
String clientIP = request.getHeader("X-Real-IP");
You can get the IP address statically from the RequestContextHolder
as below :
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes())
.getRequest();
String ip = request.getRemoteAddr();
I am late here, but this might help someone looking for the answer. Typically servletRequest.getRemoteAddr()
works.
In many cases your application users might be accessing your web server via a proxy server or maybe your application is behind a load balancer.
So you should access the X-Forwarded-For http header in such a case to get the user's IP address.
e.g. String ipAddress = request.getHeader("X-FORWARDED-FOR");
Hope this helps.
Put this method in your BaseController:
@SuppressWarnings("ConstantConditions")
protected String fetchClientIpAddr() {
HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.getRequestAttributes())).getRequest();
String ip = Optional.ofNullable(request.getHeader("X-FORWARDED-FOR")).orElse(request.getRemoteAddr());
if (ip.equals("0:0:0:0:0:0:0:1")) ip = "127.0.0.1";
Assert.isTrue(ip.chars().filter($ -> $ == '.').count() == 3, "Illegal IP: " + ip);
return ip;
}
private static final String[] IP_HEADER_CANDIDATES = {
"X-Forwarded-For",
"Proxy-Client-IP",
"WL-Proxy-Client-IP",
"HTTP_X_FORWARDED_FOR",
"HTTP_X_FORWARDED",
"HTTP_X_CLUSTER_CLIENT_IP",
"HTTP_CLIENT_IP",
"HTTP_FORWARDED_FOR",
"HTTP_FORWARDED",
"HTTP_VIA",
"REMOTE_ADDR"
};
public static String getIPFromRequest(HttpServletRequest request) {
String ip = null;
if (request == null) {
if (RequestContextHolder.getRequestAttributes() == null) {
return null;
}
request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
}
try {
ip = InetAddress.getLocalHost().getHostAddress();
} catch (Exception e) {
e.printStackTrace();
}
if (!StringUtils.isEmpty(ip))
return ip;
for (String header : IP_HEADER_CANDIDATES) {
String ipList = request.getHeader(header);
if (ipList != null && ipList.length() != 0 && !"unknown".equalsIgnoreCase(ipList)) {
return ipList.split(",")[0];
}
}
return request.getRemoteAddr();
}
I combie the code above to this code work for most case. Pass the HttpServletRequest request
you get from the api to the method
I use such method to do this
public class HttpReqRespUtils {
private static final String[] IP_HEADER_CANDIDATES = {
"X-Forwarded-For",
"Proxy-Client-IP",
"WL-Proxy-Client-IP",
"HTTP_X_FORWARDED_FOR",
"HTTP_X_FORWARDED",
"HTTP_X_CLUSTER_CLIENT_IP",
"HTTP_CLIENT_IP",
"HTTP_FORWARDED_FOR",
"HTTP_FORWARDED",
"HTTP_VIA",
"REMOTE_ADDR"
};
public static String getClientIpAddressIfServletRequestExist() {
if (RequestContextHolder.getRequestAttributes() == null) {
return "0.0.0.0";
}
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
for (String header: IP_HEADER_CANDIDATES) {
String ipList = request.getHeader(header);
if (ipList != null && ipList.length() != 0 && !"unknown".equalsIgnoreCase(ipList)) {
String ip = ipList.split(",")[0];
return ip;
}
}
return request.getRemoteAddr();
}
}
See below. This code works with spring-boot and spring-boot + apache CXF/SOAP.
// in your class RequestUtil
private static final String[] IP_HEADER_NAMES = {
"X-Forwarded-For",
"Proxy-Client-IP",
"WL-Proxy-Client-IP",
"HTTP_X_FORWARDED_FOR",
"HTTP_X_FORWARDED",
"HTTP_X_CLUSTER_CLIENT_IP",
"HTTP_CLIENT_IP",
"HTTP_FORWARDED_FOR",
"HTTP_FORWARDED",
"HTTP_VIA",
"REMOTE_ADDR"
};
public static String getRemoteIP(RequestAttributes requestAttributes)
{
if (requestAttributes == null)
{
return "0.0.0.0";
}
HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest();
String ip = Arrays.asList(IP_HEADER_NAMES)
.stream()
.map(request::getHeader)
.filter(h -> h != null && h.length() != 0 && !"unknown".equalsIgnoreCase(h))
.map(h -> h.split(",")[0])
.reduce("", (h1, h2) -> h1 + ":" + h2);
return ip + request.getRemoteAddr();
}
//... in service class:
String remoteAddress = RequestUtil.getRemoteIP(RequestContextHolder.currentRequestAttributes());
:)
Source: Stackoverflow.com