Re: I can't connect

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От jlemcke@netspace.net.au
Тема Re: I can't connect
Дата
Msg-id 985215677.3ab932bd06bef@www.netspace.net.au
обсуждение исходный текст
Ответ на I can't connect  (Bart <bart@alator.kotnet.org>)
Ответы Re: I can't connect  (Bart <bart@alator.kotnet.org>)
Список pgsql-jdbc

I think your url String should be
"jdbc:postgresql:testing"
and your Class.forName should be either
"org.postgresql.Driver" or "postgresql.Driver"

John L.

Quoting Bart <bart@alator.kotnet.org>:

> Hi,
>
> I installed debian 2.2r2 with _all_ the postgres-packages,  I created a
> database and via psql I can do whatever I want with the DB. Now I'm
> trying to make a connection via a Java-program. I downloaded the
> jdbc-6.5-1.2.jar file and renamed it to jdbc.jar and moved it to
> ~/jdk1.3/lib, set the CLASSPATH to ~/jdk1.3/lib and used a program,
> found in the Deitel&Deitel Java book.
> After that, I tried to make a connection to the database I created
> (testing) and I keep getting error-messages.
>
> Can someone help me with this? I'm trying for 3 days now and still no
> luck.
>
> Thanks,
> Bart
>
>
>  --- program from Deitel & Deitel ---
>
> import java.sql.*;
> import javax.swing.*;
> import java.awt.*;
> import java.awt.event.*;
> import java.util.*;
>
> public class TableDisplay extends JFrame
> {
>     private Connection connection;
>     private JTable table;
>
>     public TableDisplay()
>     {
>         String url = "jdbc:odbc:testing";   // I also tried with <String url =
> "jdbc:postgres:testing";>
>         String username = "postgres";
>         String password = "notentered";
>
>
>         try
>         {
>             Class.forName("jdbc.Driver");
>             connection = DriverManager.getConnection(url, username, password);
>         }
>         catch (ClassNotFoundException cnfex)
>         {
>             System.err.println("Failed to load the JDBC/ODBC driver.");
>             cnfex.printStackTrace();
>             System.exit(1);
>         }
>         catch (SQLException sqlex)
>         {
>             System.err.println("Unable to connect to database.");
>             sqlex.printStackTrace();
>         }
> . . . . . . . . .
>
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