Exception: Name [jdbc:/comp/env] is not bound in this Context

[chaitanya karthikk]

Hi all, I am using tomcat 7.x and trying to do JNDI lookup and get DataSource instance. When i try to use Context's lookup(String name) method it is not working. I am getting

javax.naming.NameNotFoundException: Name [jdbc:/comp/env] is not bound in this Context. Unable to find [jdbc:].
	at org.apache.naming.NamingContext.lookup(NamingContext.java:820)
	at org.apache.naming.NamingContext.lookup(NamingContext.java:168)
	at org.apache.naming.SelectorContext.lookup(SelectorContext.java:158)
	at javax.naming.InitialContext.lookup(InitialContext.java:392)
	at web.jndi.test.controller.Login.init(Login.java:27)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5015)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5302)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3908)
	at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:426)
	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1350)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1537)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1547)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1547)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1526)
	at java.lang.Thread.run(Thread.java:619)
Jul 14, 2012 6:48:49 PM org.apache.catalina.core.StandardContext reload

When I try to do the same with @Resource(name = "jdbc/mytest") I am able to get the DataSource instance and my application is working fine. Why is this problem occurring?

I declared the resource in server.xml file as<Context docBase="JNDI" path="/JNDI" reloadable="true" source="org.eclipse.jst.jee.server:JNDI"> <Resource name="jdbc/mytest" auth="Container" type="javax.sql.DataSource" maxActive="100" maxIdle="10" maxWait="10000" username="root" password="root" driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/test" /> </Context> and a resource-ref in my web.xml like this<resource-ref> <res-auth>Container</res-auth> <res-ref-name>jdbc/mytest</res-ref-name> <res-type>javax.sql.DataSource</res-type> </resource-ref> Before using @Resource I tried putting the Resource in context.xml file under META-INF folder also. But everything failed. I read here http://www.coderanch.com/t/496324/Tomcat/jdbc-JNDI-name-causes-Tomcat that we have to check "Publish module contexts to separate xml files". I did this, even it dint work. Then after using @Resource I unchecked this and it worked.

Why am I not able to use Context's lookup(String name) method?

Thank you all in advance. Good day.

[Tim Holloway]

You have a basic problem in the JNDI lookup name. It's not "jdbc:/comp/env", it's "java:comp/env". Or, more fully:

java:comp/env/jdbc/mytest

[chaitanya karthikk]

Thanks a lot Mr. Tim.