从文件上传 Java FX 图像

Question

i was trying create a image icon on label text field using file chooser but the current code works for java and not java fx if anyone know to fix my code it will be very helpful

package EmploymentPayroll;

import java.awt.Image;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.event.ActionEvent;
import javafx.scene.control.Label;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import javax.swing.JOptionPane;


/**
 * FXML Controller class
 *
 * @author Shafeen
 */
public class AddEmployeeController implements Initializable {

    @FXML
    private Label img;
    private ImageIcon format = null;
    String filename = null;
    byte[] person_image = null;

    @Override
    public void initialize(URL url, ResourceBundle rb) {

    }

  @FXML
    private void UploadImageActionPerformed(ActionEvent event) {
        JFileChooser chooser = new JFileChooser();
        chooser.showOpenDialog(null);
        File f = chooser.getSelectedFile();

        filename = f.getAbsolutePath();
        *error*  ImageIcon imageIcon = new ImageIcon(new ImageIcon(filename).getImage().getScaledInstance(img.getWidth(), img.getHeight(), Image.SCALE_DEFAULT));

        *error* img.setIcon(imageIcon);       


         try {
            File image = new File(filename);
            FileInputStream fis = new FileInputStream (image);
            ByteArrayOutputStream bos= new ByteArrayOutputStream();
            byte[] buf = new byte[1024];
            for(int readNum; (readNum=fis.read(buf))!=-1; ){
                bos.write(buf,0,readNum);
            }
            person_image=bos.toByteArray();
        }

        catch(Exception e){
            JOptionPane.showMessageDialog(null,e);
        }

    }   

this is the java fx form where when i click on picture it should load the file and save as BLOB type

error one

error two

thanks for help

Answer 1

if anyone is looking to upload images using java fx and save in database in blob format then you can refer this code thank you

@FXML
    private void UploadImageActionPerformed(ActionEvent event) {

        FileChooser fileChooser = new FileChooser();

        //Set extension filter
        FileChooser.ExtensionFilter extFilterJPG
                = new FileChooser.ExtensionFilter("JPG files (*.JPG)", "*.JPG");
        FileChooser.ExtensionFilter extFilterjpg
                = new FileChooser.ExtensionFilter("jpg files (*.jpg)", "*.jpg");
        FileChooser.ExtensionFilter extFilterPNG
                = new FileChooser.ExtensionFilter("PNG files (*.PNG)", "*.PNG");
        FileChooser.ExtensionFilter extFilterpng
                = new FileChooser.ExtensionFilter("png files (*.png)", "*.png");
        fileChooser.getExtensionFilters()
                .addAll(extFilterJPG, extFilterjpg, extFilterPNG, extFilterpng);
        //Show open file dialog
        File file = fileChooser.showOpenDialog(null);

        try {
            BufferedImage bufferedImage = ImageIO.read(file);
            WritableImage image = SwingFXUtils.toFXImage(bufferedImage, null);
            img.setImage(image);
            img.setFitWidth(200);
            img.setFitHeight(200);
            img.scaleXProperty();
            img.scaleYProperty();
            img.setSmooth(true);
            img.setCache(true);
            FileInputStream fin = new FileInputStream(file);
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            byte[] buf = new byte[1024];

            for (int readNum; (readNum = fin.read(buf)) != -1;) {
                bos.write(buf, 0, readNum);
            }
            person_image = bos.toByteArray();

        } catch (IOException ex) {
            Logger.getLogger("ss");
        }
    }

byte[] person_image = null;

 @FXML
    private void handleaddemployee(ActionEvent event) throws IOException {

        try {
                String empID = "nill";
                if (!txtempID.getText().equals("")) {
                    empID = txtempID.getText();
                }

                Employee e = new Employee(
                        empID,
                        person_image 
                );
                dbemployee.addEmployee(e);

            } else {
                 System.out.println("not working");
            }

        } catch (SQLException ex) {
           System.out.println("error");

        } catch (NumberFormatException e) {
         System.out.println("number error");

        }

    }