Servlet Communication

[Chinni Bujji]

Hello All,

I have one servlet in which i have code to return to forward the response to the corresponding JSP's

I had to create another servlet and get some logic there and in its service method i have made some out.println statement to be printed on the jsp

so from the first servlet i have to call the second one and display the output from the second onto a jsp, please help me with this

i am not able to do it because i am trying to use the getservlet method to get the servlet but that method is deprecated so i am getting a null here

thanks in advance

[Bear Bibeault]

It actually sounds like you need some refactoring, but...

Why are you trying to use getServlet()? Why not just forward to the servlet?

[sujith Acharya]

use RequestDisptcher object to servlet/servlet or servlet/jsp communication. Use include/forward method based on your requirement

[Chinni Bujji]

yes i do need some refactoring but i am not able to do it
i am getting confused

basically in second servlet i have init method and service methods and the service method gives me the jsp code
so i am not able to understand how to place that code in the first serlvet

please help me on this

[Praveen Rajendran]

Hi Chinni,

If its regarding what code to use in your first servlet to communicate to the second that your are having question, you can use either of the below:

// req is HttpServletRequest object

RequestDispatcher rd;
	rd = req.getRequestDispatcher("<pathToServlet>");
	rd.forward(req, res);

Or you can use ServletContext's getRequestDispatcher(String resource) to do the same.

RequestDispatcher rd;
	rd = getServletContext().getRequestDispatcher("<pathToServlet>");
	rd.forward(req, res);

I was able to see a good link which explains this pretty simpler and clearer way. Click here to access it.
Let me know if it helps