// Fig. 24.17: RedirectServlet.java
// Redirecting a user to a different Web page.
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 1992-2003 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. *
*************************************************************************/