getInitParameterで情報を取得できない

package dbHandler;



import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;



public class dbHandler extends HttpServlet{



	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{

		PrintWriter out = response.getWriter();

		ServletConfig config = getServletConfig();

		dbb d = new dbb(config);



		String str = d.connect();

		out.println (str);

	}

}



class dbb{



	String result;



	public dbb (ServletConfig c){

		result = c.getInitParameter ("Test1");

	}



	public String connect(){

		return (result);

	}



}