Question

Currently I am using this for JBoss, but I need something also for an external Tomcat:

Properties props = new Properties();
props.put(Context.PROVIDER_URL, "jnp://localhost:1099");
props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
props.put(Context.URL_PKG_PREFIXES, "org.jboss.naming.client");
props.put("j2ee.clientName", "abtest");

Searching with Google I find this ones, but I am not able to figure out what Tomcat’s port configuring to accept JNDI connection…

props.put(Context.INITIAL_CONTEXT_FACTORY,
"org.apache.naming.java.javaURLContextFactory");
props.put(Context.PROVIDER_URL, "http://localhost:???");

Please can You help me?

Answer 1

As far as I know, tomcat doe not support remote access to its JNDI tree, so you can access it only from the tomcat process. Because of that, The tomcat sets all the initialization params for the default InitialConext, and you can use it like this:

// Obtain our environment naming context
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");

// Look up our data source
DataSource ds = (DataSource)
  envCtx.lookup("jdbc/EmployeeDB");

// Allocate and use a connection from the pool
Connection conn = ds.getConnection();
... use this connection to access the database ...
conn.close();

You can also learn more of the JNDI in tomcat in this link