Untitled Document

package grewe.servlets.myDBServlet

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

/**Servlet that opens up server's servlet parameter file to look up the name of
     the Database host machine and the SID used for connection.
     Currently, simply prints out the information to the client web-browser but,
     could be made later to actually open up a connection and process DB requests.

@author Lynne Grewe
@since 2001
*/

public class myDBServlet extends HttpServlet {

private String DBHost;
private String DBSID;

    //method called first time Servlet is invoked
    //read in the parameters about the DB.
    public void init(ServletConfig c) throws ServletException {

//must always call parent's method!!!
super.init(c);

//retrieve parameters
DBHost = c.getInitParameter("DataBaseMachine");

DBSID = c.getInitParameter("DataBaseSID");

}

    //method called when user requests URL of this servlet
    //Currently, simply prints out DB parameters read in.
    public void doGet)(HttpServletRequest req, HttpServletResponse res)
            throws ServletException, IOException {

            res.setContentType("text/html"); //tell what we are returning
            PrintWriter out = res.getWriter();
            String title = "The DataBase Servlet";
            out.println(ServletUtilities.headWithTitle(title) +
                               "<BODY bgcolor=\"yellow\" > \n" +
                               "<Center><H2>Database Parameters</H2></Center> \n" +
                               "<b>Database Host: </b>" + DBHost + "\n" +
                               "<b>Database SID: </b>" + DBSID + "\n" +
                               "</BODY></HTML>");
     }

}