Re: Postgresql-JDBC connectivity

You need to put it in common/lib under jakarta's home directory.  That's
the only place the class loader can find it.

Minal wrote:
> 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
>>>
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>>>
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>>>
>>>
>>
>>
>
>
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