Re: JDBC in Red hat 9

Joseph,

Two things wrong that I can see:

1) The driver class is now org.postgresql.Driver (not postgresql.Driver)
2) You only include one of the jar files in the classpath (the one that
corresponds to the version of java/jdbc you are running: jdbc1 = jdk1.1,
jdbc2= jdk1.2 and 1.3, jdbc3= jdk1.4

thanks,
--Barry


Joseph Thomas wrote:
> Ok I am new to Linux, so please bear with me. I am running Red Hat 9
> that comes with PostgreSQL7.3.2-3.
>
> I have created a "test" database and am trying to access it using a java
> program through jdbc.
> I am recieving and error: "Exception! java.lang.ClassNotFoundException:
> postgresql.Driver"
>
> I have my CLASSPATH set to point to pg73b1jdbc1.jar, pg73b1jdbc2.jar and
> pg73b1jdbc3.jar.
>
> I am reading a HOW TO for jdbc and PostgreSQL From
> http://tldp.org/HOWTO/Enterprise-Java-for-Linux-HOWTO-6.html but this is
> for version 6.5, do I need to do anything else?
>
> here is my java code:
> import java.sql.*;
>
> class PostgreSQLTest {
>   public static void main (String[] args) {
>     try {
>       Driver driver = (Driver)
>         Class.forName("postgresql.Driver").newInstance();
>       DriverManager.registerDriver(driver);
>
>       String     url = "jdbc:postgresql:javatest";
>       Connection con = DriverManager.getConnection(url, "postgres", "");
>       Statement  stm = con.createStatement();
>
>       stm.setQueryTimeout(10);
>       ResultSet  rs  = stm.executeQuery("select col1 from test");
>
>       rs.next();
>
>       System.out.println(rs.getString(1));
>
>     } catch (SQLExcept ion e) {
>
>       System.out.println("Exception!");
>       System.out.println(e.toString());
>   }
> }
>
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