Jetty mysql connection-pool configuration error: javax.naming.NameNotFoundException; remaining name 'env/jdbc/---(mysql 5.0+jetty 7.0.1)

Question

My configuration files

project/WEB-INF/web.xml:

<resource-ref>
    <description>ConnectionPool DataSource Reference</description>
    <res-ref-name>jdbc/mysql</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
</resource-ref>

project/WEB-INF/jetty-env.xml:

<New id="mysql" class="org.eclipse.jetty.plus.jndi.Resource">
    <Arg></Arg>
<Arg>jdbc/mysql</Arg>
    <Arg>
        <New class="org.apache.commons.dbcp.BasicDataSource">
            <Set name="driverClassName">com.mysql.jdbc.Driver</Set>
            <Set name="url">jdbc:mysql://localhost:3306/db</Set>
            <Set name="username">user</Set>
            <Set name="password">pwd</Set>
            <Set name="maxActive">50</Set>
        </New>
    </Arg>
</New>

---

code to invoke:

ctx = new InitialContext();
ds = (DataSource) ctx.lookup("java:comp/env/jdbc/mysql");
con=ds.getConnection();

---

scripts to start jetty:

java -DOPTIONS=plus -jar start.jar

java -jar start.jar

Either way to start jetty, I got following error:

---

javax.naming.NameNotFoundException; remaining name 'env/jdbc/mysql'
        at org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:632)
        at org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:663)
        at org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:678)
        at org.eclipse.jetty.jndi.java.javaRootURLContext.lookup(javaRootURLContext.java:110)
        at javax.naming.InitialContext.lookup(Unknown Source)

---

The questions are:

• what is the problem here?
• Any other configurations needed?
• where to put following jar files:
  • commons-dbcp-1.2.2.jar
  • mysql-connector-java-5.1.10-bin.jar

Thank you!

Answer 1

Note: The following assumes you're using Jetty 7.2.2+ (probably works with any Jetty 7.0+).

The problem is you're missing ONE extra layer of indirection. Even though you've configured Jetty in your webapp, you still need to tell the Jetty container that it needs to look for jetty-env.xml in your webapp. To do that, add the following to your jetty.xml (under ${JETTY_INSTALL_DIR}/etc:

<Call name="setAttribute">
  <Arg>org.eclipse.jetty.webapp.configuration</Arg>
  <Arg>
      <Array type="java.lang.String">
          <Item>org.eclipse.jetty.webapp.WebInfConfiguration</Item>
          <Item>org.eclipse.jetty.webapp.WebXmlConfiguration</Item>
          <Item>org.eclipse.jetty.webapp.MetaInfConfiguration</Item>
          <Item>org.eclipse.jetty.webapp.FragmentConfiguration</Item>
          <Item>org.eclipse.jetty.plus.webapp.EnvConfiguration</Item>
          <Item>org.eclipse.jetty.plus.webapp.PlusConfiguration</Item>
          <Item>org.eclipse.jetty.webapp.JettyWebXmlConfiguration</Item>
          <Item>org.eclipse.jetty.webapp.TagLibConfiguration</Item>
      </Array>
  </Arg>
</Call>

NOW Jetty will know to parse the jetty-env.xml you've created.