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Creating and Binding to e Context wih JAVA

Posted on 2006-11-14
4
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Last Modified: 2013-12-10
Hello
I am trying to look up a Datasource  and am getting an error. Here is my code

  cnt = new InitialContext();
  sqlData = new SQLServerConnectionPoolDataSource();
  sqlData = (SQLServerConnectionPoolDataSource)cnt.lookup("vccon");

I ma getting a null exception

I created the the connection pool an dthe datasource in Weblogic so I shouldn't have to use specify the connection factory properties with a hash table.

But just to be on the safe side a tried that as well and here is my code for that

 hash = new Hashtable();
 hash.put(cnt.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
 hash.put(cnt.PROVIDER_URL,"t3://localhost:7001");
 cnt = new InitialContext(hash);

I am also getting a null exception
I have no idea what else to do

Please advise!!
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Question by:rnzimiro
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4 Comments
 

Author Comment

by:rnzimiro
ID: 17939954
I am uising WebLogic 8.1
0
 
LVL 10

Expert Comment

by:ECollin
ID: 17945223
Hi

you need to specify jndi connection properties when your code is executed outside the weblogic'jvm. For instance, a standalone java application need to get a connection to a database through a datasource hosted in a weblogic server.

the line : sqlData = new SQLServerConnectionPoolDataSource(); is not required. You will get the instance with the lookup.
Are you sur to use the good jndi name for the datasource ?

Can you give us a stack trace plz ?

Emmanuel
0
 
LVL 6

Accepted Solution

by:
Ajar earned 500 total points
ID: 17948667
Check for weather the data source object actually exists with following code

 cnt = new InitialContext();
 
Object o  = cnt.lookup("vccon");
if(o != null){
System.out.println("SUCCESS lookup");
}else{
System.out.println("FAILURE lookup");
// THis means that the datasource object is not bound to jndi tree
throw new Exception("Failed to lookup vccon");
}

javax.sql.DataSource ds = (javax.sql.DataSource ) o;
java.sql.Connection = ds.getConnection();
...
....
The rest of sql code comes here
---




0
 

Author Comment

by:rnzimiro
ID: 17952109
I got it to work.  Thanks
0

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