Hi - I've been using JSF with Glassfish successfully for the last few
months, but up to now have not tried to use databases with it, which
I'm now trying for the first time.  Before I try writing any code, I
wanted to test out the code in chapter 10 of "Core JavaServer Faces"
to see if database access works with my configuration, and it does
not!

I configured the server as given in the book, and specified the JNDI
name as "jdbc/mydb", and compiled the code provided, created a war
file and deployed it. Online I found a file called
"postgresql-8.3dev-601.jdbc4.jar.zip", copied it to my "/glassfish/
domains/domain1/lib/ext/" folder, as instructed and started the server
and the application. However, after starting the application and
attempting to log in on its test page, I get the "Internal Error"
message produced by the code. In checking the log at localhost:4848 I
get various error messages saying that the connection was refused,
including that I should check TCP/IP.

Could someone kindly advise me on what is going wrong, as until I can
get an example running from the book, I can't go any further. The book
says on page 466 that I first have to create a table with a few
entries, with an example given, but nothing is said as to how I can do
that.

Some help would be most appreciated.