JSP & Crystal Reports Database Problem

Question

Hi all,
I hava problem with refreshing the crystal report web viewer if the report retrieves data from DB.
If I don't refresh the report, it shows the report with default parameters. But when I refresh the report (I mean viewer.refresh()) it gives an error which says it could not found the JNDI.
Do you have any idea about it ???
Thanks in advance.
Ismail TURK.

Answer 1

So it can't find the JNDI name.
What JNDI name is it looking for?
How are you connecting to the database in the Crystal Reports developer.
How It works on my machine. [long spiel]
For some reason I was never able to get a JNDI connection throught the CR10 developer. It kept giving me error messages. But I DID manage to connect to Oracle via the standard Oracle TNSNames interface.
When I tried loading the report in the browser, it looked for a JNDI name the same as the TNSName. Dunno why.
The issue is that Tomcat stores the JNDI datasources under java:/comp/env/.
And I couldn't configure the report to look in that initial context.
My hack of a solution: load the JNDI datasource myself, and then bind it into the place where Crystal Reports looked:
So I had
1 - a TNS Name entry called REPORT_DB which the report designer connected to
2 - a JNDI entry REPORT_DB defined in Tomcat
<%
Context initContext = new InitialContext();
System.out.println("binding");
try{
Object obj = initContext.lookup("REPORT_DB");
catch(NamingException e){
  System.out.println("Naming exception " + e);
  Context envContext  = (Context)initContext.lookup("java:/comp/env");
  DataSource ds = (DataSource)envContext.lookup("REPORT_DB");
  initContext.bind("REPORT_DB", ds);
System.out.println("bound");
%>Maybe this might help you, maybe not.
Cheers,
evnafets