problem with jdbc connect database in bean

[ken123 lai]

i have download mssqlserver2000 jdbc driver , and
include them into classpath, while i connect database in java application, it works perfect,
but when i connect it from bean, it output error:
"unable to connect database:access denied", i had added the default.properties with jdbc drivers, and the bean also works ok while using cloudscape.
can anybody help me, thanks!!
the code framework as follow:
public void setEntityContext(EntityContext context) {
this.context = context;
try {
Context ic = new InitialContext();
DataSource ds = (DataSource) ic.lookup(dbName);
con = ds.getConnection("sa","");
} catch (NamingException e){
throw new EJBException("namingexception:"+e.getMessage());
}
catch (SQLException e){
throw new EJBException("sql error: " + e.getMessage());
}
catch (Exception e) {
throw new EJBException("Unable to connect to database. " +
e.getMessage());
}
}

[Dave Vick]

ken123 lai
Welcome to the Java Ranch, we hope you’ll enjoy visiting as a regular however,
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