CS651

Servlet: Calling other Servlets or JSPs, etc.

Idea from a Servlet call another Servlet or JSP IN THE SAME CONTAINER (otherwise you will have to get another ServletContext associated with the appropriate Servlet Container).

Step 1: Get the Servlet Context

ServletContext cx = getServletContext();

This is the object we use to communicate with the Servlet container.

Note: If you are doing this inside of a JSP you will already have the servlet Context in a predefined variable named "application".

Version Servlet 2.3 and on

//this is if you are invoking another servlet

//if same web application
String otherServletPath = "otherServlet";

RequestDispatcher mydisp = cx.getRequestDispatcher( otherServletPath);

//Now you can add any elements you want to
//the current request (req) object and invoke the
//servlet

mydisp.forward(req,res);

//now controll returned to this servlet

Example Showing JSP calling a Servlet

JSP importing utility class and using it