How to connect to an oracle database in android?

Question

I have an oracle database, i need to access to the info but i can't. I have imported the OJDBC6 driver, I created the class:

public class JDBC_ORA    {
     static String userName="XXX";
     static String password="X";
     static String server="192.168.X.X";

     public Connection con;

     public void conexion() {        
         try {          
             Class.forName("oracle.jdbc.driver.OracleDriver");
             con = DriverManager.getConnection("jdbc:oracle:thin:" + userName + "/" + password+ "@"+server);            

         } catch (ClassNotFoundException e) {
             e.printStackTrace();
         } catch (SQLException e) {
             e.printStackTrace();
         } 
     }


     public void cerrar (Connection con) {
         try {
             con.close();
         } catch (SQLException e) {
             e.printStackTrace();

         }
     }
}

And i call it in the mainactivity:

 JDBC_ORA ora_con = new JDBC_ORA();   
    ora_con.conexion();
    try {
        Statement stmt = ora_con.con.createStatement();
        rset = stmt.executeQuery("select * from asdf where cid='"+ var + "'" );
        while (rset.next())
        {
            System.out.println(blablablabla);
            ora_con.con.commit();
        }
        stmt.close();
        ora_con.cerrar(ora_con.con);
    } catch (SQLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

And always get this errors

Could not find class 'oracle.security.pki.OraclePKIProvider', referenced from method oracle.jdbc.driver.OracleDriver.<clinit>

Could not find class 'javax.management.MBeanServer', referenced from method oracle.jdbc.driver.OracleDriver.registerMBeans

Can someone help me please?

Answer 1

Don't. If you do this, you have to put your password in the app. That means your database is totally insecure, and can be accessed by anyone with a copy of the app and 5 minutes to decompile it. Instead, use a webservice that sits between your app and the database. That way you never need the password to leave your machines.

Answer 2

The best practice will be using a web-service written in Java,.Net, PHP, etc.. Then you need to connect your application with that web-service you created. The other way is to use Oracle Database Mobile Server .

You could find how to create web-service easily on google.