@WebServlet(urlPatterns = {"/imageAPI"})
@MultipartConfig(maxFileSize = 16177215)
public class imageAPI extends HttpServlet {
private String dbURL = "jdbc:mysql://localhost/OBS";
private String dbUSER = "root";
private String dbPASS = "1234";

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    Connection con = null;
    InputStream is = null;
    Image image = null;
    BufferedImage thumb = null;
    Part filePart = req.getPart("pic");
    int thumbWidth = 600;
    int thumbHeight = 600;
    if(filePart != null){

        is = filePart.getInputStream();
        image = ImageIO.read(is);
        thumb = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics2D = thumb.createGraphics();
graphics2D.setBackground(Color.WHITE);
graphics2D.setPaint(Color.WHITE);
graphics2D.fillRect(0, 0, thumbWidth, thumbHeight);
graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null);

    ImageIO.write(thumb, "JPG", resp.getOutputStream());

try{
        DriverManager.registerDriver(new com.mysql.jdbc.Driver());
        con = DriverManager.getConnection(dbURL, dbUSER, dbPASS);

        String sql = "insert into imageapi (image) values(?)";
        PreparedStatement ps = con.prepareStatement(sql);
        if(is!= null){
            ps.setBlob(1,(Blob) ImageIO.read((ImageInputStream) thumb));

        }

        con.close();
        ps.close();
    }catch(SQLException ex){
        ex.printStackTrace();
    }

}