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 cs320.model.GuestBookEntry;
@WebServlet("/AddComment")
public class AddComment extends HttpServlet {
private static final long serialVersionUID = 1L;
int idSeed = 100;
public AddComment()
{
super();
}
protected void doGet( HttpServletRequest request,
HttpServletResponse response ) throws ServletException, IOException
{
// display form
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
out.println( "<html><head><title>Add Comment</title></head><body>" );
out.println( "<form action='AddComment' method='post'>" );
out.println( "Name: <input type='text' name='name' /> <br />" );
out.println( "<textarea name='message'></textarea> <br />" );
out.println( "<input type='submit' name='add' value='Add' /> <br />" );
out.println( "</form>" );
out.println( "</body></html>" );
}
@SuppressWarnings("unchecked")
protected void doPost( HttpServletRequest request,
HttpServletResponse response ) throws ServletException, IOException
{
// get the user input
String name = request.getParameter( "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<GuestBookEntry> entries = (List<GuestBookEntry>) getServletContext().getAttribute(
"entries" );
entries.add( entry );
// send the user back to the guest book page
response.sendRedirect( "GuestBook" );
}
}