viewcartservlet.java

Prentice Hall published, H.M.Deitel writen.

// Fig. 16.30: ViewCartServlet.java
// displays items in shopping cart
package cartXML;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.sql.*;
import org.w3c.dom.*;

public class ViewCartServlet extends HttpServlet {

   public void init( ServletConfig config )
      throws ServletException
   { super.init( config ); }

   public void service( HttpServletRequest request,
      HttpServletResponse response )
      throws ServletException, IOException
   {
      HttpSession session = request.getSession( true );
      ShoppingCart cart = ( ShoppingCart ) session.getAttribute(
         "cart" );
      ServletContext sc = getServletConfig()
         .getServletContext();

      if ( cart.getUsername() == null ) {
         sc.getRequestDispatcher( "/index.wml" )
            .forward( request, response );
         return;
      }
      Document doc = cart.viewCartXML();
      		response.setContentType( "text/vnd.wap.wml" );
      		PrintWriter output = response.getWriter();
      		Processor processor = new Processor();
      		processor.process( doc,
         "C:/jakarta-tomcat/webapps/chapter16/viewcart.xsl",
         output );
   }
}
/*
 **************************************************************************
 * (C) Copyright 2001 by Deitel & Associates, Inc. and Prentice Hall.     *
 * All Rights Reserved.                                                   *
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 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
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