Re: Postgresql-JDBC connectivity

Поиск
Список
Период
Сортировка
От Minal
Тема Re: Postgresql-JDBC connectivity
Дата
Msg-id 42B15261.7050503@yes2etl.com
обсуждение исходный текст
Ответ на Re: Postgresql-JDBC connectivity  (Dave Cramer <pg@fastcrypt.com>)
Ответы Re: Postgresql-JDBC connectivity  (Tom Arthurs <tarthurs@jobflash.com>)
Re: Postgresql-JDBC connectivity  (Dave Cramer <pg@fastcrypt.com>)
Список pgsql-jdbc
I set the classpath, copied in the lib folder of web-inf. If I try to
run a simple java program shown below:
import java.sql.*;

public class Example1
{
public static void main(String[] argv)
{
   System.out.println("Checking if Driver is registerd");
   try
   {
   Class.forName("org.postgresql.Driver");
   }
   catch(ClassNotFoundException cnfe)
   {
   System.out.println("Couldn't find the Driver");
   cnfe.printStackTrace();
   System.exit(1);
   }
   System.out.println("registered the Driver OK, so lets make a
connection");
   Connection c = null;
     try
   {
   c=
DriverManager.getConnection("jdbc:postgresql://localhost/trainneedcorp","postgres","admin");

   }
   catch(SQLException se)
   {
   System.out.println("Couldnt connect");
   se.printStackTrace();
   System.exit(1);
   }
   if(c != null)
   System.out.println("WE CONNECTED");
   else
   System.out.println("Reaching here is not done");
   }
   }
   I get the following error:

java.lang.ClassNotFoundException: org.postgresql.Driver
       at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
       at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
       at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
       at java.lang.Class.forName0(Native Method)
       at java.lang.Class.forName(Class.java:141)
       at Example1.main(Example1.java:10)


Dave Cramer wrote:

> Hi,
>
> How are you trying to connect, what is the error message,
> specifically which lib directory of jakarta did you copy it into?
>
> Dave
> On 16-Jun-05, at 2:46 AM, Minal wrote:
>
>> Hi...
>> I am novice user of Postgresql8.0.3. I managed to export the
>> database from sql server. We have all our application in JSP. I  want
>> to install the org.postgresql.driver..
>> I completed the following steps...
>> 1.Downloaded the jar file from http://jdbc.postgres.org
>> 2. Copied it in the lib folder of Jakarta..
>> 3. Edited the pages to use the Driver..am still not able to connect...
>>
>> Where am I going wrong??
>> Minalac
>>
>> ---------------------------(end of
>> broadcast)---------------------------
>> TIP 5: Have you checked our extensive FAQ?
>>
>>               http://www.postgresql.org/docs/faq
>>
>>
>
>


В списке pgsql-jdbc по дате отправления:

Предыдущее
От: Dave Cramer
Дата:
Сообщение: Re: Postgresql-JDBC connectivity
Следующее
От: Tom Arthurs
Дата:
Сообщение: Re: Postgresql-JDBC connectivity