Java gets the IP address of the Web login

/*** Get access to the user's client IP (for public and local area networks). */     Public Static FinalString Getipaddr (Finalhttpservletrequest request)throwsException {if(Request = =NULL) {            Throw(NewException ("Getipaddr method httpservletrequest Object is null")); } String ipstring= Request.getheader ("X-forwarded-for"); if(Stringutils.isblank (ipstring) | | "Unknown". Equalsignorecase (ipstring)) {ipstring= Request.getheader ("Proxy-client-ip"); }        if(Stringutils.isblank (ipstring) | | "Unknown". Equalsignorecase (ipstring)) {ipstring= Request.getheader ("Wl-proxy-client-ip"); }        if(Stringutils.isblank (ipstring) | | "Unknown". Equalsignorecase (ipstring)) {ipstring=request.getremoteaddr (); }             //multiple routes, take the first non-unknown IP        Finalstring[] arr = Ipstring.split (",");  for(FinalString Str:arr) {            if(!" Unknown. Equalsignorecase (str)) {ipstring=str;  Break; }        }             returnipstring; }

Java gets the IP address of the Web login