HOWTO invoke a method on another Servlet from my Servlet?

Hello!

How can my Servlet invoke a public method on another Servlet?

Thanks.
jussaraAsked:
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Jim CakalicSenior Developer/ArchitectCommented:
My understanding, also. Prior to Servlet 2.1 it was possible for one servlet to call the methods of another servlet directly. A strictly-conforming 2.1 engine will not allow this. Instead, there are other mechanisms to accomplish "servlet-chaining". For details of both the pre-2.1 and post-2.1 techniques and examples, have a look at:
    http://novocode.de/doc/servlet-essentials/chapter3.html

Best regards,
Jim Cakalic
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dvijiCommented:
By using " InterServlet Communication" we will achive it.

Example:-

ServletContext sc = getServletConfig().getServletContext();
Enumeration  servletNames = sc.getServletNames(); //will return the available servlet names
MyServlet myServlet = (MyServlet)sc.getServlet("servletName "); //get the MyServlet instance from ServletContext
String name = myServlet.getNames(); //execute the public method.


...dviji





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tomboshellCommented:
Hmmm, interesting.  I was reading that the method 'getServletNames()' is deprecated.  It wont be along much longer.  So, I would guess in such a situation the use of reflection would work.  But it is an interesting problem.  

Tom
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jwentingCommented:
interservlet communication was deprecated and will be (has been?) removed in later versions because of security reasons.

The best way to achieve it is by having the servlets call one another over HTTP, and having the service method throw back the response based on the parameters passed (passing in the function to be called as a parameter, and parameters to it as other parameters for example).
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Jim CakalicSenior Developer/ArchitectCommented:
Recommendation: points to jim_cakalic
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