jdbc javax.naming.NameNotFoundException

Question

I have been having a problem with this exception for a long time. I am trying to connect to an external mysql database but I keep getting this exception. I have looked at many examples and I still have not found the answer. Here is my code, please bare in mind that this is all the code I use for this so please say if I've missed something out:

    <?xml version="1.0" encoding="UTF-8"?>
<context>
    <!-- Registers Database with JNDI Naming Service as a pooled DataSource -->
<Resource 
        name="jdbc/DBNAME" 
        auth="Container" 
        type="javax.sql.DataSource" 
        factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
        testWhileIdle="true"
        testOnBorrow="true"
        testOnReturn="false"
        validationQuery="SELECT 1"
        validationInterval="30000"
        timeBetweenEvictionRunsMillis="30000"
        maxActive="100" 
        minIdle="10" 
        maxWait="10000" 
        initialSize="10"
        removeAbandonedTimeout="60"
        removeAbandoned="true"
        logAbandoned="true"
        minEvictableIdleTimeMillis="30000" 
        jmxEnabled="true"
        jdbcInterceptors="org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer"
        username="****" 
        password="********"
        driverClassName="com.mysql.jdbc.Driver"
        url="jdbc:mysql://****:3306/****"/>

</context>

And here is my code for calling it:

try
{
    InitialContext ic = new InitialContext();
    DataSource ds = (DataSource) ic.lookup("java:comp/env/jdbc/DBNAME");
    Connection c = ds.getConnection();
    return c;
}
catch(NamingException ne)
{
    System.out.println(ne.toString());
    return null;
}
catch (SQLException se) 
{
    System.out.println(se.toString());
    return null;
}

Usernames, passwords, db urls and connection names have been redacted but the rest is correct.

Answer 1

From Tomcat doc at:

http://tomcat.apache.org/tomcat-7.0-doc/jndi-resources-howto.html

Try using this code:

Context ic= new InitialContext();
Context envCtx = (Context) ic.lookup("java:comp/env");

DataSource ds = (DataSource)envCtx.lookup("jdbc/DBNAME");

Regards.