SimpleORM

public class MyPlugin extends JavaPlugin {
 
    @Override
    public void onEnable ( ) {
        /*
         * If you dont whan to use manager object, follow this
         * code. NOT RECOMMEND.
         *
         * EbeanHandler handler = new EbeanHandler();
         * handler.setDriver("com.mysql.jdbc.Driver");
         * handler.setUrl("jdbc:mysql://localhost:3306/database");
         * handler.setUserName("userName");
         * handler.setPassword("password");
         *
         * Use manager object will gen and read config field automatic.
         * and will store handler into a map, your can get it even
         * your plugin reload.
         *
         */
        // EbeanManager manager = EbeanManager.DEFAULT;
        EbeanManager manager = getServer ( ). getServicesManager ( )
                . getRegistration (EbeanManager. class )
                . getProvider ( ) ;
        EbeanHandler handler = manager. getHandler ( this ) ;

        if ( !handler. isInitialize ( ) ) {
            handler. define (MyClass. class ) ;
            handler. define (MyOther. class ) ;
            try {
                handler. initialize ( ) ;
            } catch ( Exception e ) {
                // Do what you want to do.
            }
        }
        // This function will inject into Bukkit's build-in
        // ORM support.
        handler. reflect ( ) ;
        // This function will try to create not exists tables.
        handler. install ( ) ;
        // Injected build-in method. Return initialized
        // Ebean server.
        EbeanServer server = this. getDatabase ( ) ;
        // EbeanServer server = handler.getServer();
        // ...
    }
 
    public void function ( ) {
        MyClass my = getDatabase. find (MyClass. class )
                                . where ( )
                                . eq ( "name", "zmy" )
                                . findUnique ( ) ;
        System. out. print (my. getName ( ) ) ;
        // ...
    }
}
Code your entity class like this. See More Example.

@ Entity
@Table (name = "o_table" )
public class MyClass {
 
    @Id
    private int id ;
 
    @Column
    private String name ;
 
    // Put getter and setter.
}

@ Entity
@Table (name = "o_table" )
public class MyClass {
 
    @Id
    private int id ;
 
    @Column
    private String name ;
 
    // Put getter and setter.
}

dataSource:
  driver : com.mysql.jdbc.Driver
  url : jdbc:mysql://localhost/database
  userName : username
  password : password