// Fig. 9.18: RedirectServlet.java
// Redirecting a user to a different Web page.
package com.deitel.advjhtp1.servlets;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class RedirectServlet extends HttpServlet {
// process "get" request from client
protected void doGet( HttpServletRequest request,
HttpServletResponse response )
throws ServletException, IOException
{
String location = request.getParameter( "page" );
if ( location != null )
if ( location.equals( "deitel" ) )
response.sendRedirect( "http://www.deitel.com" );
else
if ( location.equals( "welcome1" ) )
response.sendRedirect( "welcome1" );
// code that executes only if this servlet
// does not redirect the user to another page
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
// start XHTML document
out.println( "" );
out.println( "" );
out.println(
"" );
// head section of document
out.println( "" );
out.println( "Invalid page" );
out.println( "" );
// body section of document
out.println( "" );
out.println( "Invalid page requested
" );
out.println( "" );
out.println( "Click here to choose again
" );
out.println( "" );
// end XHTML document
out.println( "" );
out.close(); // close stream to complete the page
}
}
/***************************************************************
* (C) Copyright 2002 by Deitel & Associates, Inc. and *
* Prentice Hall. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have *
* used their 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. *
***************************************************************/