Retrieve remote web service client host and IP

If you've created a web service, and you want to find out what the host or IP-address of the remote client is? The following code will be useful.

@WebService
public class WebService {
    @Resource
    WebServiceContext wsc;

    @WebMethod
    public String webMethod() {
        MessageContext mc = wsc.getMessageContext();
        HttpServletRequest req = (HttpServletRequest)
            mc.get(MessageContext.SERVLET_REQUEST);
        return "Client: " +
               req.getRemoteHost() + " (" +
               req.getRemoteAddr() + ").";
    }
}

The code above will return the host and IP-address of the remote web service client back to the client.