Re: org.postgresql.util.PSQLException: Protocol error. Session setup failed

From: Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>
To: Major Services <services(dot)major(at)gmail(dot)com>
Cc: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: org.postgresql.util.PSQLException: Protocol error. Session setup failed
Date: 2010-03-09 22:32:18
Message-ID: 4B96CC72.2070306@catalyst.net.nz
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Major Services wrote:
> I am trying to connect to PostgreSQL database on my local system.
>
> The code is:
>
> Class.forName("org.postgresql.Driver");
> String url =
> "jdbc:postgresql://localhost:5432/postgres?user=postgres&password=major";
> Connection conn = DriverManager.getConnection(url);
>
> Running the code I get:
>
> org.postgresql.util.PSQLException: Protocol error. Session setup failed.
>
> Using postgresql-8.4-701.jdbc3 on PostgreSql 8.4
>
>
>
>
>

Try adding some debug info (will help us see what is going on) - e.g:

Class.forName("org.postgresql.Driver");
String url =
"jdbc:postgresql://localhost:5432/postgres?user=postgres&password=major";

Properties props = new Properties();
props.setProperty("loglevel","2");

Connection conn = DriverManager.getConnection(url, props);

regards

Mark

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