Question

If I had an instance of HttpServletRequest, I could do request.getServerName() to get the server name. However, during the post initialization of the controller beans, I have no instance of HttpServletRequest.

@Controller
@RequestMapping(value = {"/data"})
public class DataController {
    @PostConstruct
    public void init() {
        // how to get server name?
    }
}

How do I get the server name in this case?

Answer 1

There are no good ways to do it.

Generally speaking, server doesn’t know the name that can be used to access it from the outside. Actually, HttpServletRequest.getServerName() isn’t a solution either, because it returns a name used to send that particular request, not the canonical name you want your server to be known under.

The typical solution is to configure the canonical server name for a particular deployment in a property file, etc.