getServletContext().getMimeType(file) doesn't work?

[Lily Y. Fu]

Hi,

I am reading Jason Hunter's Java Servlet Programming book.

on Page 92 (chapter 4, example 4-10)
the servlet use

String contentType = getServletContext().getMimeType(req.getPathTranslated());

seems doesn't work for me.

I am using Netscape Enterprise Server 3.5.1(on solaris)
JSDK 2.0

http://exon/servlet/Lily.ViewFile2/index.html

it translated the file to the right path, but give me the following
error message:

java.lang.ClassNotFoundException at
sun.servlet.ServletLoader.loadClass(ServletLoader.java:123) at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336) at
Lily.ViewFile2.doGet(ViewFile2.java:32) * at
javax.servlet.http.HttpServlet.service(HttpServlet.java:252) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:330) at
sun.servlet.netscape.NSRunner.run(NSRunner.java:144) at
netscape.server.applet.ServerApplet.handleRequest(ServerApplet.java:69)
at netscape.server.applet.HttpApplet.handleRequest(HttpApplet.java:680)
the file getPathTranslated is
/export/WWW/suitespot/docs/banner.gifEND
================== copied from Jason's book =============
package Lily;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

import com.oreilly.servlet.ServletUtils;

public class ViewFile2 extends HttpServlet
{
        public void doGet(HttpServletRequest req, HttpServletResponse res)
                throws ServletException, IOException
        {

                // use a ServletOutputStream because we may pass binaryinformation
                ServletOutputStream out = res.getOutputStream();

                // get the file to view
                String file = req.getPathTranslated();
                out.println("the file getPathTranslated is " + file + "END");

                //no file, noting to view
                if ( file == null )
                {
                        out.println("No file to view");
                        return;
                }

                //get and set the type of the file
                String contentType = getServletContext().getMimeType(file);
                res.setContentType(contentType);

                //return the file
                try {
                        ServletUtils.returnFile(file, out);
                    }
                catch (FileNotFoundException e)
                    {
                        out.println ("File not found");
                    }
                catch (IOException e)
                    {
                        out.println ("Problem sending file: " + e.getMessage());
                    }

        }
}

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