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From Robert Einsle <>
Subject Re: Access zu an jdbc Datasource
Date Wed, 01 Sep 2004 06:33:45 GMT

It seems to work, very much Thanks.



D'Alessandro, Arthur schrieb:

>Try a resourcelink in your context for the webapp.
><Context cachingAllowed="true" docBase="yourwebappname.war" debug="99"
>path="/yourwebappname" privileged="false" reloadable="true"
>  <ResourceLink name="jdbc/globalname" global="jdbc/globalname"
>-----Original Message-----
>From: Robert Einsle [] 
>Sent: Tuesday, August 31, 2004 9:02 AM
>To: Tomcat Users List
>Subject: Access zu an jdbc Datasource
>Hello List,
>I'm trying zu connect to an JDBC Datasource connecting to an Postgres 
>Database. But it will not work.
>I tryed it link the Documentation, adding the Datasource under 
>GlobalNamingResources, and add the another in web.xml.
>In ProgrammSource:
>--- cut ---
>Context initContext = new InitialContext();
>Context envContext = (Context)initContext.lookup("java:/comp/env");
>DataSource ds = (DataSource)envContext.lookup("jdbc/postgres");
>Connection conn = ds.getConnection();
>--- cut ---
>The another is link the description in the JDBC Howto.
>While ds.getConnection() i recieved an Exception, cannot connect to 
>Datasource name ''.
>Searchin a little bit, i cannot find the Environment for the 
>Does anyone has an Idea / Howto i can lokk about my Problem??
>Thanks for Help

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