Re: Problem connecting by JDBC with a SERVLET

From: "Dave Cramer" <Dave(at)micro-automation(dot)net>
To: "'Andres Davila'" <adavila0026(at)yahoo(dot)com>, <pgsql-jdbc(at)postgresql(dot)org>
Subject: Re: Problem connecting by JDBC with a SERVLET
Date: 2002-02-28 23:54:56
Message-ID: 010401c1c0b3$53211300$8201a8c0@inspiron
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Andres,

What is the error you get back? Did you put the jdbc jar into the
webapp's lib directory?

Dave

-----Original Message-----
From: pgsql-jdbc-owner(at)postgresql(dot)org
[mailto:pgsql-jdbc-owner(at)postgresql(dot)org] On Behalf Of Andres Davila
Sent: Thursday, February 28, 2002 6:46 PM
To: pgsql-jdbc(at)postgresql(dot)org
Subject: [JDBC] Problem connecting by JDBC with a SERVLET

I try to access a database on a Linux server, with
Apache, Tomcat & Postgres.

The servlet should connect to the database, make a
select and display the results in a webpage

My code is the following:

Connection con = null;
Statement stmt = null;
ResultSet rs = null;

res.setContentType("text/html");
PrintWriter out = res.getWriter();

try {
String database = "intvuelos";
String username = "nobody";
String password = "";
Class.forName("org.postgresql.Driver");

con =
DriverManager.getConnection("jdbc:postgresql://10.65.28.12/invuelos",
username, password);
stmt = con.createStatement();
rs = stmt.executeQuery("SELECT numeroempleado,
origen, destino FROM viajes");

out.println("<html><head><title>Consulta de
Datos</title></head>");
out.println("<body>");

out.println("<ul>");

while(rs.next()){

out.println("<li>"+
rs.getString("numeroempleado") + " " +
rs.getString("nombre") + " " +
rs.getString("apellidos"));

}
out.println("</ul>");
out.println("</body></html>");
}

catch(ClassNotFoundException e){
out.println("Couldn't load database driver: " + e.getMessage());
}
catch(SQLException e){ out.println("SQLException
caught: " + e.getMessage());
}
finally{
try{
if(con !=null) con.close();
}
catch (SQLException ignored){ }
}
}
}

****

Please help me if you can

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