Connecting to an oracle db from a servlet. need help.

Question

Hello!
I'm a noob in webprogramming but I am studing it for a month. So I have a trouble with jdbc.
I write a web application in Sun Studio Creator 2 IDE. There is an Oracle 11g database on my computer. The application has ajax jsp, which
sends asynchronous requests to a servlet. The servlet must open jdbc connection, process the request and send back the data. I got a
driver from oracle.com(ojdbc.jar) and import it to my project. But at first I thought to write a simple console program to connect jdbc. It
works good.
Here it is:
import java.net.*;
import java.io.*;
import java.util.*;
import oracle.jdbc.*;
import oracle.sql.* ;
import java.sql.* ;
public class getdata {
private static Connection conn;
private static Statement stmt;
private static ResultSet rset;
public static void initConnection()
try {   
System.out.println(" ");
System.out.print("Registering Oracle driver..........................");
DriverManager.registerDriver ( new oracle.jdbc.driver.OracleDriver());
System.out.println("Success");
System.out.print("Establishing database connection...................");
conn = DriverManager.getConnection("jdbc:oracle:thin:@Nobody:1521:glob", "sysman", "mypass" );
System.out.println("Success");
System.out.print("Creating statement object..........................");
stmt = conn.createStatement();
System.out.println("Success");
catch (SQLException e)
System.out.println("Failed!");
System.out.println("Failure reason: " + e);
public static void executeSQLQuery(String inSQL)
try
System.out.println("Trying to execute: \n" + inSQL);
System.out.print("Executing SQL select query.........................");
rset = stmt.executeQuery (inSQL);
System.out.println("Success");
System.out.println(" ");
while (rset.next())
System.out.println ("<cid>"+rset.getString(1)+"</cid>");
System.out.println ("<oemnumber>"+rset.getString(2)+"</oemnumber>");
System.out.println ("<rusdesc>"+rset.getString(3)+"</rusdesc>");
System.out.println ("<engdesc>"+rset.getString(4)+"</engdesc>");
System.out.println ("<unorignumber>"+rset.getString(5)+"</unorignumber>");
System.out.println ("<system>"+rset.getString(6)+"</system>");
rset.close();
stmt.close();
conn.close();
catch (SQLException e)
{ System.out.println("Failed!");
System.out.println("Failure reason: " + e);
public static void main(String[] args) throws IOException
initConnection();
executeSQLQuery("SELECT * FROM parts go");
Then I need to use this code in my servlet. But it stops on the string:
conn = DriverManager.getConnection("jdbc:oracle:thin:@Nobody:1521:glob", "sysman", "mypass" );
I don't know why. Can you help me? Thanks for any help. We have no forums qualified enough in our language. And this is my first
message to an english speaking site, so excuse me for mistakes. I hope I can write this program before our university session will start :-)

Answer 1

Sorry, yes.
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
try {   
System.out.println(" ");
System.out.print("Registering Oracle driver..........................");
//DriverManager.registerDriver ( new oracle.jdbc.driver.OracleDriver());
Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("Success");
System.out.print("Establishing database connection...................");
conn = DriverManager.getConnection("jdbc:oracle:thin:@Nobody:1521:glob", "sysman", "mypass" );
System.out.println("Success");
System.out.print("Creating statement object..........................");
stmt = conn.createStatement();
System.out.println("Success");
catch (ClassNotFoundException a)
catch (SQLException e)
System.out.println("Failed!");
System.out.println("Failure reason: " + e);
}