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From Francois Orsini <francois.ors...@gmail.com>
Subject Re: Reg:Accessing database.jar file using derby10.2.2.0
Date Mon, 21 Sep 2009 22:05:36 GMT
Hi Gana,

Have you checked file permissions on derby.jar to make sure it is readable
by whomever user that is launching tomcat?

Also, you could test with putting the jars under tomcat/lib

--francois

On Mon, Sep 21, 2009 at 6:48 AM, gana prasad <gana.mnvs@gmail.com> wrote:

> Hi,
>
> I am facing the problems while accessing the database jar file using derby
> 10.2.2.0.
>
> I am getting the Exception as below:
> *
>
> " org.apache.tomcat.dbcp.dbcp.SQLNestedException
> *: Cannot load JDBC driver class 'org.apache.derby.jdbc.EmbeddedDriver'
>
> at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(
> *BasicDataSource.java:1136*)
>
> at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(
> *BasicDataSource.java:880*)  "
>
>
>
> My configuration as shown below:
>
> Context.xml:
>
>         <
> Context crossContext=*"true"*>
>
>        <Resource name=*"jdbc/derby"* auth=*"Container"*
>
>         type=*"javax.sql.DataSource"* driverClassName=*
> "org.apache.derby.jdbc.EmbeddedDriver"*
>
>         url=*"jdbc:derby:jar:(c:\CalypsoDemo\database.jar)samples"*
>
>         username=*"xxx"* password=*"xxx"* maxActive=*"20"* maxIdle=*"10"*
>
>        maxWait=*"-1"*/>
>
> </
> Context>
>
>
>
> And in my code i am accessing the database like this:
>
>                   Context initContext = *new* InitialContext();
>
>                   Context envContext = (Context)initContext.lookup(
> "java:/comp/env");
>
>                   DataSource ds = (DataSource)envContext.lookup(
> "jdbc/derby");
>
>                   conn = ds.getConnection();
>
> And i have placed the derby jar file in tomcat/common/lib  directory. And
> database.jar file in my local directory.
>
>
>
> What could be the reason for this ? Is there any problem with my
> configuration.?
>
>
>
> Please help me in this regard,
>
>
>
> Thanks in Advance,
>
> Gana.
>
>
>
>
>
>
>
>
>

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