VB client to a Session Bean

[Arijit Ghosh]

I want to have a simple VB client connecting (logging in using Username and Password) to Jboss ( a session bean) and then returning some data back to the VB client.
Any pointers ? Urgent!!
Thanks in advance.

[sim sim]

Hi
As far as I know u can not have a VB client calling a bean. U can, however have a VB client talking to a CORBA server, the server developed in Java can communicate with bean and return results to VB client.
Any better answers, I would like to know as well

[Arijit Ghosh]

Hi
So you mean that if I have a VB interface, I cannot call a session bean ? Not even through servlets ? Why don't we have the servlet return some XML file which can be parsed by the VB client ?
What I mean is that can we have the VB client send some request to the servlet which in turn calls the bean. It then does the necessary processing and returns the result.
Isn't that possible ?

[Mikalai Zaikin]

Originally posted by Arijit Ghosh:

What I mean is that can we have the VB client send some request to the servlet which in turn calls the bean. It then does the necessary processing and returns the result.
Isn't that possible ?

Hi, Arijit.
It is definitely possible to call Java Servlet from VB client programm. Either POST or GET method and get some results from HTTP servlet.
But your question in first version was about direct access of EJB from VB. I think you got reasonable answer : use CORBA controls in VB (I don't know about their existance ...)
So, if yiu have JBoss bundled with Tomcat (not standalone JBoss) your problem could be resolved easily.
Mikalai.

[seshu kumar]

You can do it in two ways,
Method A
1) Write a servlet which calls the EJB
2) Forwards the results (in java beans)
to a JSP
3)Let your JSP create a html, Xhtml or xml
4)From VB client make a HTTP connection get the result
5)You can parse or transform the response
Method B
1) You can invoke EJB through CORBA

[Mikalai Zaikin]

Hello,
you can use following approach:

 

public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  String sdunid = "";
  sdunid = doSomeActionWithEJB();
  response.setContentType("text/html");
  ServletOutputStream out = response.getOutputStream();
  out.print(sdunid);
}

In VB client use standard Microsoft's control (AFAIR, Inet).
Obtain input stream, read string from stream - that is all.
Hope, this'll help you.
Mikalai.

[Arijit Ghosh]

Thanks a lot Mikalai.

[Arijit Ghosh]

Thanks Seshu. Everyone seems to be of similar opinion.