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Difficulty in compiling a servlet.

Difficulty in compiling a servlet.

2003-10-11       - By anunay ashish

 Back
Reply:     1     2     3     4  

Hi,

The code for my bean is:

package com.scheduler;
import java.sql.*;
public class DBUpdate
{
   private Connection conn;
   private Statement stmt;
   private ResultSet rs;
public DBUpdate()
   {
       conn = null;
       stmt = null;
       rs = null;
   }
public void process(String query)
   {
       try
       {
           Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
           Connection conn =
DriverManager.getConnection("jdbc:oracle:thin:@(protected):1521:myData",
"mangesh", "mangesh");
           stmt = conn.createStatement();
           rs = stmt.executeQuery(query);
  System.out.println("Query: " + query + " executed");
       }
       catch(Exception exception1)
       {
           System.out.println("Error occured in DBUpdate.process()
SQLException :" + exception1);
       }
   }
public ResultSet getResultSet() throws SQLException
   {
    return rs;
   }
public void destroy()
{
       conn = null;
       stmt = null;
       rs = null;
}
}

And for my servlet is:

package com.scheduler;
import java.io.*;
import java.sql.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class addDataServlet extends HttpServlet
{
private String pageFormat;
public void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException
{
 ResultSet testRS;
 DBUpdate dbupdate = new DBUpdate();
 pageFormat = request.getParameter("newPageFormat");
 PrintWriter out = response.getWriter();
 out.print(pageFormat);
 String query = "Select * from lookup_page_format";
 dbupdate.process(query);
 try
 {
  testRS = dbupdate.getResultSet();
     while(testRS.next())
  {
   out.print(testRS.getString(2));
   out.print("hi");
  }
 }
 catch (SQLException e)
 {
  out.println("SQLException :" + e);
 }
 try
 {
  //set the attribute and forward to pageFormat.jsp
  request.setAttribute("servletName", "addDataServlet");

getServletConfig().getServletContext().getRequestDispatcher("/Tracking_syste
m/pageFormat.jsp").forward(request, response);
 }
 catch (Exception ex)
 {
  ex.printStackTrace ();
 }
}
}

On compiling the addDataServlet.java, an error is coming - Unresolved
symbol:Class DBUpadate is not resolved
Where I am doing wrong?

Thanks in advance.
Regards,
Anunay.


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