Question

I’ve been having a hard time making a JNDI data source work. Following instructions at
http://tomcat.apache.org/tomcat-5.5-doc/jndi-resources-howto.html
I’m connecting to oracle with Tomcat5.5
I can connect fine if I use straight JDBC connection in code.

Here is what I have:
in my META-INF/context.xml:

<Resource name="jdbc/mydb" auth="Container"
          type="javax.sql.DataSource" driverClassName="oracle.jdbc.OracleDriver"
          url="jdbc:oracle:thin:theserver:1521/mydb"
          username="user" password="password" maxActive="20" maxIdle="10"
/>

here is what is in web.xml:

<resource-ref>
  <description>please work</description>
  <res-ref-name>jdbc/mydb</res-ref-name>
    <res-type>
    javax.sql.DataSource
    </res-type>
    <res-auth>Container</res-auth>
  </resource-ref>

here is code:

   Connection conn = null;
    try{
    InitialContext ic = new InitialContext();
    DataSource ds = (DataSource) ic.lookup("java:comp/env/jdbc/mydb");
    conn = ds.getConnection();
    } catch ....... etc.

I’ve tried many different configurations and started a new, simple project to ensure that no extra jar files conflicted or anything like that, but .

can anyone see anything that doesn’t look right?

the error on the server indicates a NullPointerException when I attempt to use the conn object.
excuse me, it first offers: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Io exception: The Network Adapter could not establish the connection)

Answer 1

The database url seems broken to me.

try:

jdbc:oracle:thin:@theserver:1521/mydb