Re: Can't get JDBC to compile. Please help.

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От Dave Cramer
Тема Re: Can't get JDBC to compile. Please help.
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Msg-id 491f66a50904130834q10179085x7d712f0b8319dc5a@mail.gmail.com
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Ответ на Can't get JDBC to compile. Please help.  (IronSheikh <kazisiddiqui@gmail.com>)
Список pgsql-jdbc
You have to add the actual postgresql jar file to the classpath.

Dave

On Sun, Apr 12, 2009 at 2:48 PM, IronSheikh <kazisiddiqui@gmail.com> wrote:

I'm a beginner. I installed PostGRESQL 8.3 with edb_pgjdbc.exe on Windows XP
SP2.

The following test code won't compile:
package javaapplication1;
import java.sql.*;

public class Main {

   public static void main(String[] args) {
    try
    {
      helloPostgresql();
    }
    catch (Exception ex)
    {
      System.out.println("***Exception:\n"+ex);
      ex.printStackTrace();
    }
   }

   public static void helloPostgresql()
           throws ClassNotFoundException, SQLException
   {
    Class.forName("org.postgresql.Driver");
    Connection db = DriverManager.getConnection("jdbc:postgresql:pathos",
"postgres", "cuy4867z");

    PreparedStatement st = db.prepareStatement("INSERT INTO test VALUES
(?,?,?)");
    st.setInt(1, 5);
    st.setString(2, "'$10.00'");
    st.setString(3, "'full checkup'");
    st.executeUpdate();
    st.close();

    db.close();
   }

}

NetBeans says:
***Exception:
java.lang.ClassNotFoundException: org.postgresql.Driver
java.lang.ClassNotFoundException: org.postgresql.Driver
       at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
       at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
       at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
       at java.lang.Class.forName0(Native Method)
       at java.lang.Class.forName(Class.java:169)
       at javaapplication1.Main.helloPostgresql(Main.java:36)
       at javaapplication1.Main.main(Main.java:24)
BUILD SUCCESSFUL (total time: 0 seconds)

I've tried adding "E:\Program Files\PostgreSQL\pgJDBC" to the CLASSPATH. Any
suggestions?
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