Select data from DataBase

Question

Hi;
I try to select data from DataBase, But I get the following error, Could anyone help? thanks.
Exception in thread "main" java.lang.ClassNotFoundException: oracle.jdbc.driver.
OracleDriver
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.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at Lookup.main(Lookup.java:12)
import java.sql.*;
import java.io.*;
import java.util.*;
public class Lookup {
    public static void main(String[] args)
        throws SQLException, ClassNotFoundException {
        String dbUrl = "jdbc:oracle:thin:@augur.scms.waikato.ac.nz:1521:comp319";
        String user = "group029";
        String password = "group029";
        // Load the driver (registers itself)
        Class.forName("oracle.jdbc.driver.OracleDriver");
        Connection c = DriverManager.getConnection(dbUrl, user, password);
        Statement s = c.createStatement();
        //SQL code:
        ResultSet r =
            s.executeQuery("SELECT * " +"FROM movie");
     StringBuffer results= new StringBuffer();
        ResultSetMetaData metaData = r.getMetaData();
     int numberOfColumns = metaData.getColumnCount();
     for(int i=1; i<=numberOfColumns; i++)
         results.append(metaData.getColumnName(i)+"\t");
     results.append("\n");
     while (r.next()){
         for( int i=1; i <=numberOfColumns; i++)
          results.append(r.getObject(i)+"\t");
         results.append("\n");
     s.close();
}

Answer 1

It's a classpath problem. Either you mistyped the class name, or you don't have the class in your classpath. I think Oracle's drivers come in db12.zip or db12.jar or some such. Whatever that jar or zip file is, it has to be in your classpath, but it's not.
Or it is in your classpath, but you're in an appserver context where the classloader that the container provides for your app uses something other than the classpath variable. For instance, in tomcat, the jar file would be uder webapps/yourApplication/WEB-INF/lib I think.