package cs320.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import cs320.model.GuestBookEntry;
@WebServlet("/AddCommentWithSession")
public class AddCommentWithSession extends HttpServlet {
private static final long serialVersionUID = 1L;
int idSeed = 100;
public AddCommentWithSession()
{
super();
}
protected void doGet( HttpServletRequest request,
HttpServletResponse response ) throws ServletException, IOException
{
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
out.println( "Add Comment (with Session)" );
out.println( "" );
out.println( "" );
}
@SuppressWarnings("unchecked")
protected void doPost( HttpServletRequest request,
HttpServletResponse response ) throws ServletException, IOException
{
// the user's name should either be in session or a request parameter
HttpSession session = request.getSession();
String name = (String) session.getAttribute( "name" );
if( name == null )
{
name = request.getParameter( "name" );
// save the name in session
session.setAttribute( "name", name );
}
String message = request.getParameter( "message" );
// create a new guest book entry
GuestBookEntry entry = new GuestBookEntry( idSeed++, name, message );
// add the new entry to the guest book
List entries = (List) getServletContext().getAttribute(
"entries" );
entries.add( entry );
// send the user back to the guest book page
response.sendRedirect( "GuestBook" );
}
}