Calling a servlet from another servlet

@sravs 

You can call the servlet programmatically from another servlet in one of two ways, as per [1].

• To include another servlet's output, use the include() method from the RequestDispatcher interface. This method calls a servlet by its URI and waits for it to return before continuing to process the interaction. The include() method can be called multiple times within a given servlet.

  For example:

   RequestDispatcher dispatcher =
       getServletContext().getRequestDispatcher("/servlet/ShowSupplies");
    dispatcher.include(request, response);

• To handle interaction control to another servlet, use the RequestDispatcher interfaces forward() method with the servlet's URI as a parameter.

  This example shows a servlet using forward():

   RequestDispatcher dispatcher =
       getServletContext().getRequestDispatcher("/servlet/ShowSupplies");
    dispatcher.forward(request, response);

         

Here is the reference

[1] https://docs.oracle.com/cd/E19146-01/819-2634/abxbn/index.html

[2] https://www.geeksforgeeks.org/servlet-collaboration-java-using-requestdispatcher-httpservletresponse/

Hope this help!