Java.sql.SQLException: Error accessing jdbc driver

Question

Hi,
We are using WebLogic Server 7.0 as Application Server.
We now create a connection pool named regPool and
a Tx datasource named regDS.
When we get the connection from the datasource, exception occurred.
java.sql.SQLException: Error accessing jdbc driver: driverURL =
jdbc:weblogic:pool:regPool, props = {enableTwoPhaseCommit=false,
jdbcTxDataSource=true, connectionPoolID=regPool}
at
weblogic.jdbc.jts.Driver.wrapAndThrowSQLException(Driver.java:323)
at weblogic.jdbc.jts.Driver.getNonTxConnection(Driver.java:377)
at weblogic.jdbc.jts.Driver.connect(Driver.java:129)
at
weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java
:265)
So I guess that why we can't use CMP for finding data. Here is the error when we call the finder.
javax.ejb.FinderException: Exception in findAllEmr while preparing or
executing statement: 'null'
java.sql.SQLException: Cannot obtain connection after 30 seconds. ,
Exception = Access not allowed
java.sql.SQLException: Cannot obtain connection after 30 seconds. ,
Exception = Access not allowed
at
weblogic.jdbc.jts.Connection.wrapAndThrowSQLException(Connection.java:694)
According to the exception message, it looks
like the connection fail between WLS and Oracle 9.2.
Here is a scenario I think you should need to know.
I change the table-name in the weblogic-cmp-rdbms-jar.xml
to a name that doesn't exist in the database.
Then, re-package the EJB, copy it to server and restart the server.
A exception occurred that says the table doesn't exist.
So, in this case, it looks like the datasource works and
connection is fine.
Any recommendation will be appreciated.
Jimmy Chang

Answer 1

Hi!
I am a default user to the databse server. I connect to the database with '\' as the username and blank passoword(I mean with Network authentication may be).When I am trying to create connection using
con = DriverManager.getConnection("jdbc:oracle:thin:@DRACINAL2:BSAJ", "/","" )
it gives me followint error
ava.sql.SQLException: Null user or password not supported in THIN driver
     void oracle.jdbc.dbaccess.DBError.throwSqlException(java.lang.String, java.lang.String, int)
     void oracle.jdbc.dbaccess.DBError.throwSqlException(int, java.lang.Object)
     void oracle.jdbc.dbaccess.DBError.check_error(int)
     oracle.jdbc.dbaccess.DBConversion oracle.jdbc.ttc7.TTC7Protocol.logon(java.lang.String, java.lang.String, java.lang.String, java.util.Properties)
     void oracle.jdbc.driver.OracleConnection.<init>(oracle.jdbc.dbaccess.DBAccess, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.util.Properties)
     java.sql.Connection oracle.jdbc.driver.OracleDriver.getConnectionInstance(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.util.Properties)
     java.sql.Connection oracle.jdbc.driver.OracleDriver.connect(java.lang.String, java.util.Properties)
     java.sql.Connection java.sql.DriverManager.getConnection(java.lang.String, java.util.Properties, java.lang.ClassLoader)
     java.sql.Connection java.sql.DriverManager.getConnection(java.lang.String, java.lang.String, java.lang.String)
     void textPack.GenTextFile.main(java.lang.String[])
How should I go about it?
Thanks for your help.
-Sreekanth Varidhireddy