Home/ Questions/Q 7569951
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-30T15:17:43+00:00

I have a GWT project A and another project B on another computer. Now

  • 0

I have a GWT project A and another project B on another computer. Now I want to call the business logic in project B whenever a user presses a button in project A. Project B cannot be a GWT project because of other restrictions.

How can I do that?

I tried to use sockets, but that is not possible with GWT: java.net.Socket is not supported by Google App Engine’s Java runtime environment. If a uncheck the usage of GWT App Engine in the project properties, my application does not start anymore (java.lang.NoSuchMethodError’s).

So what I need is a behaviour like the following:

  1. Fire an event in project A
  2. Notice that the event was fired and call method x
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    After getting notification from the client, about the event, you can use HttpURLConnection to contact the project B. Project B must have HTTP interface to handle the request from the A.

    You can read more details about HttpURLConnection here: http://code.google.com/appengine/docs/java/urlfetch/

    Calling certain method on the B project is matter of good contract between the request parameters and the mechanism for calling methods(I guess some kind of mapping).

    • 0