How does a servlet communicate with a JSP page | Eklavya Online

How does a servlet communicate with a JSP page

The following code snippet shows how a servlet instantiates a bean and initializes it with FORM data posted by a browser. The bean is then placed into the request, and the call is then forwarded to the JSP page, Bean1.jsp, by means of a request dispatcher for downstream processing.

public void doPost (HttpServletRequest request, HttpServletResponse response)

try {

govi.FormBean f = new govi.FormBean();

String id = request.getParameter(“id”);




//use the id to compute

//additional bean properties like info

//maybe perform a db query, etc.

// . . .



.getRequestDispatcher(“/jsp/Bean1.jsp”).forward(request, response);


catch (Exception ex) {}


The JSP page Bean1.jsp can then process fBean, after first extracting it from the default requestscope via the useBean action.

  • <jsp:useBean id=”fBean”class=”govi.FormBean” scope=”request”/>
  • <jsp:getPropertyname=”fBean” property=”name”/>
  • <jsp:getProperty name=”fBean” property=”addr”/>
  • <jsp:getProperty name=”fBean” property=”age”/>
  • <jsp:getProperty name=”fBean” property=”personalizationInfo”/>