JSP (Java Server Page) - insertar imagen en tabla jsp

private static void insertarCoche(Object coche){

        try {

            PreparedStatement ps=conn1.prepareStatement("USE vehiculos");

            ps.execute();

            //PreparedStatement ps=conn1.prepareStatement("INSERT INTO  Coche (infoCoche) VALUES (?);");

            ByteArrayOutputStream byteArray = new ByteArrayOutputStream();

            ObjectOutputStream oos;

            oos = new ObjectOutputStream(byteArray);

            oos.writeObject(coche);

            ps = conn1.prepareStatement("INSERT INTO  Coche (infoCoche) VALUES (?)");

            ps.setBytes(1, byteArray.toByteArray());

            ps.execute();

        } catch (SQLException | IOException ex) {

            Logger.getLogger(Entregable4.class.getName()).log(Level.SEVERE, null, ex);

        }

    }

    private static void leer(){

        Object dato=null;

        try{

            PreparedStatement ps = conn1.prepareStatement("select * from coche");

            ResultSet rs = ps.executeQuery();

            while (rs.next()) {

                   Blob blob = rs.getBlob("infoCoche");

                   // Se reconstruye el objeto con un ObjectInputStream

                  ObjectInputStream ois = new ObjectInputStream(blob.getBinaryStream());

                  dato =  ois.readObject();

                  if(dato instanceof  Coche ){

                        Coche temp=(Coche) dato;

                        System.out.println(temp.toString());

                  }

            }

        } catch (SQLException | IOException | ClassNotFoundException ex) {

            Logger.getLogger(Entregable4.class.getName()).log(Level.SEVERE, null, ex);

        }

    }