Question

I am currently using this simple code to try to connect to my database on this computer (in Java)

import java.sql.Connection;
import java.sql.DriverManager;

public class Main {
public static void main(String[] argv) throws Exception {       

    String driverName = "org.gjt.mm.mysql.Driver";
    Class.forName(driverName);

    String serverName = "localhost";
    String mydatabase = "xe";
    String url = "jdbc:mysql://" + serverName + "/" + mydatabase; 

    String username = "scott";
    String password = "tiger";
    Connection connection = DriverManager.getConnection(url, username, password);
   }
 }

For some reason, I do not understand I am getting this error

Exception in thread "main" java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at Main.main(Main.java:10)

I think these classes are in the ojdbc5.jar file? Im not quite sure how to fix this error so any help would be great.

Answer 1

You might succeed better if you load the Oracle classes instead of MySQL:

String driverName = "oracle.jdbc.driver.OracleDriver";
Class.forName(driverName);


String serverName = "localhost";
String mydatabase = "xe";
String url = "jdbc:oracle:thin:@//" + serverName + ":1521/" + mydatabase;