Hi all,
I have been makeing an application under tomcat4. The application tuns
correctly with the version 4.1.24 downloaded directly from apache. But it
does not with the version of tomcat from debian (unstable). The following
exception appears:
javax.naming.NamingException: Cannot create resource instance
These are the lines causing the exception:
InitialContext init = new InitialContext();
Context ctx = (Context) init.lookup("java:comp/env");
-> DataSource source = (DataSource)ctx.lookup("jdbc/contenedores");
In the /etc/tomcat4/server.xml I have defined the following under the
application context:
<Resource name="jdbc/contenedores" auth="Container"
type="javax.sql.DataSource" />
<ResourceParams name="jdbc/contenedores" >
<parameter>
<name>driverClassName</name>
<value>com.mysql.jdbc.Driver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:mysql://localhost:3306/
contenedores?user=luis</value>
</parameter>
<parameter>
<name>password</name>
<value>1s8b3l1t8</value>
</parameter>
<parameter>
<name>username</name>
<value>luis</value>
</parameter>
</ResourceParams>
In the web.xml file of the application I have the following
<resource-ref>
<description>Base de datos de contenedores</description>
<res-ref-name>jdbc/contenedores</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
And I have installed the file 05VazMaCon under the directory /etc/tomcat4/
policy.d containing:
grant codeBase "file:/home/luis/RamonVazquez/VazMaCon/WEB-INF/classes/-" {
permission java.security.AllPermission;
};
If I connect directly to de database:
Class.forName("com.mysql.jdbc.Driver").newInstance();
conexion = DriverManager.getConnection("jdbc:mysql://localhost
/contenedores?user=luis&password=1s8b3l1t8");
The application runs correctly. I suppose that there is a mistake in the jndi
configuration, but I do not what I have to do.
Thank you all,
Luis Llana
--
Luis Fernando Llana Díaz
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