Problem with specifying build path

[ne0lithic]

Dear all,

I'm developing a servlet to handle file upload requests. Despite importing all required classes in the build path, I still receive the 'classNotFoundException' for FileItemFactory. I have also included the file-upload library in the build path of my project. Does anyone know why this is happening? As you can see below I've done a lot of redundant importing as well hoping it would solve the problem but it hasn't. I've been trying to create new projects, etc but I still get the same error.

In the doPost() method I've written my code as follows:

public void doPost( HttpServletRequest req, HttpServletResponse res )
    {
      File disk = null;
      FileItem item = null;
      FileItemFactory factory = new DiskFileItemFactory();
      java.util.Iterator iter = null;
      List items = null;
      ServletFileUpload upload = new ServletFileUpload( factory );
 
      try
      {
        items = upload.parseRequest( req );
        iter = items.iterator();
 
 
        while( iter.hasNext() )
        {
          // Get the current item in the iteration
          item = ( FileItem )iter.next();
            disk = new File(item.getName());
            item.write( disk );
        }
 
 
      } 
       catch( IOException ioe ) {
        ioe.printStackTrace();
      } catch( Exception e ) {
        e.printStackTrace();
      }
    }
 

I've also imported all the necessary packages and classes using :

import java.io.IOException;
import java.io.File;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.*;
import org.apache.commons.fileupload.*;
import java.util.List;
import org.apache.commons.io.*;
 

Can anyone tell me why this is happening?

Thanks and regards,

Nikhil

[JosAH]

Those classes you're trying to import are all stored in a .jar file. Did you mention that/those jar(s) in your classpath?

kind regards,

Jos

[ne0lithic]

Thanks for the quick response, Jos. They are in a jar file and since I'm using Eclipse Ganymede as my IDE I merely included those jar files in my build-path. This is a practice that I've used without issues before.

Cheers,

Nikhil

[JosAH]

@ne0lithic
What happens when you refresh (F5) your entire project? In the rare event that Eclipse FU'd its entire workspace project data you could give it a try to start eclipse with the -clean flag ...

kind regards,

Jos

[ne0lithic]

I tried refreshign the project and trying eclipse with the -clean option. It still shows me the same error.I've already tried another workspace as well

Cheers,

Nikhil

[JosAH]

@ne0lithic
I assume that you have WTP (Web Tools Platform) installed for Eclipse but those classes are ordinary classes. If all else fails you might try to stick those jars in the lib/ext subdirectory of your JRE installation (beware: they don't really belong there).

kind regards,

Jos

[r035198x]

If you have created a web application, add the commons-fileupload jar to your web app's WEB-INF/lib folder.

[ne0lithic]

Thanks for the help. That's exactly what I did and it's working just fine now.

Cheers,

Nikhil