[FIXED] Get IP from specific URL in Spring Boot App

Issue

I want to get IP address from domain name in Spring Boot App (not from request)

https://google.com ==> 142.251.40.142

Solution

At least you need to extract domain name or base url from the request. Then, use that domain name to get the IP Address via Java's InetAddress class.

Code :

@RequestMapping("/extract")
public void extract(HttpServletRequest request) throws MalformedURLException {
    String domainName = ServletUriComponentsBuilder.fromRequestUri(request)
        .replacePath(null)
        .build()
        .toUriString();
    InetAddress ip = InetAddress.getByName(new URL(domainName).getHost());
    System.out.println(ip);
}

Answered By - Anish B.
Answer Checked By - Terry (JavaFixing Volunteer)