Which Database connectivity is used professionally in JSP/Servlet?

Hi friends,
Can you tell me which type of database connectivity is generally used in professional web-related projects.
I mean to say,
1) Class.forName method or
2) context lookup using JNDI Data Source method.
Also,
I wonder how in shared hosting anybody writes their <Resource> tag inside TomcatRoot\conf\server.xml file.
In my local Tomcat6 i can do that. But, in Live Shared hosting how to handle JNDI Datasource?
---Sujoy

me_sujoy wrote:
Hi friends,
Can you tell me which type of database connectivity is generally used in professional web-related projects.
I mean to say,
1) Class.forName method or
2) context lookup using JNDI Data Source method.By using a connection pool (usually the one provided by the server).
>
Also,
I wonder how in shared hosting anybody writes their <Resource> tag inside TomcatRoot\conf\server.xml file.
In my local Tomcat6 i can do that. But, in Live Shared hosting how to handle JNDI Datasource?Uhm, by using the context.xml. See the documentation for your Tomcat.

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