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Re: Connection Problem

From: Thomas Markus <t(dot)markus(at)proventis(dot)net>
To: Rob Stone <robstone(at)mira(dot)net>
Cc: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: Connection Problem
Date: 2010-12-10 07:27:50
Message-ID: (view raw or whole thread)
Lists: pgsql-jdbc

maybe this is your problem

try to start your java class with


Am 07.12.2010 14:29, schrieb Rob Stone:
> Good morning,
> I don't know if I've done something really stupid or if I've stumbled on
> a bug.
> Run Debian on my laptop, version 2.6.32-3-686. Downloaded the PostgreSQL
> 9.0.1 source and compiled it following all the instructions. Downloaded
> the PGAdminIII 1.12 source plus heaps of .cpp files, compiled it. I can
> access the 9.0 database via psql or PGAdmin, view the database I
> created, display data in tables. (Not much to display at present but
> some rows exists in a couple of tables.)
> Downloaded the JDBC driver postgresql-9.0-801.jdbc4.jar, put it in my
> Downloaded the latest version of ExecuteQuery, declared the new driver,
> created a connection to my 9.0 database using the new driver but unable
> to connect to the database. See stack trace attached.
> Postmaster is started with the -i option which I believe is the same as
> saying "listen_addresses='*'".
> Using jdk1.6.
> Wrote a mickey mouse java class (testdbconn) to see if I could access
> the database and read data from a table that has two rows. See attached.
> When it runs it displays the same SQL error code as ExecuteQuery --
> 08001 -- which is the "can't connect error".
> The developer of ExecuteQuery is a former colleague of mine and a
> friend. We have been sending each other e-mails about this trying to
> suss out the problem.
> Obviously, I have installed something incorrectly OR there is something
> awry with java making the connection. psql and PGAdmin talk directly to
> the database without using a JDBC driver. Seeing as they are both
> functioning normally, what have I done to cause java to pull connect
> errors???
> Any advice will be greatly appreciated.
> Cheers,
> Rob

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