Question

这里是我编写的代码我想要显示我的类路径中的图像所以我必须做的与biometric1相同的是eclipse的工作区然后项目名称“D：\ biometric1 \ TestJniPrj \ single.jpg“;

package org.test.ivb;

import java.awt.Color;
import java.awt.EventQueue;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.BevelBorder;

public class ImageWindow extends JFrame {
    private static final long serialVersionUID = 1L;
    private JFrame frame;

    /*
     * private void btnCaptureActionPerformed(java.awt.event.ActionEvent evt)
     * {//GEN-FIRST:event_jButton8ActionPerformed try { CaptureFrame capone =
     * new GetCapture(); this.initFingerprint(this.openFile()); } catch
     * (IOException e1) { e1.printStackTrace(); } catch (InterruptedException
     * e1) { e1.printStackTrace(); }
     * 
     * }
     */

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ImageWindow window = new ImageWindow();
                    window.frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public ImageWindow() {
        initialize();
    }

    private void initialize() {
        frame = new JFrame();
        frame.setBounds(100, 100, 450, 378);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().setLayout(null);

        JPanel panel = new JPanel();
        panel.setForeground(Color.PINK);
        panel.setBorder(new BevelBorder(BevelBorder.LOWERED, null, null, null,
                null));
        panel.setBounds(27, 11, 268, 303);
        frame.getContentPane().add(panel);

        JButton btnNewButton = new JButton("capture");
        btnNewButton.setToolTipText("");
        btnNewButton.setSelectedIcon(new ImageIcon(
                "D:\\biometric1\\TestJniPrj\\single.jpg"));
        btnNewButton.setBounds(318, 146, 89, 23);
        frame.getContentPane().add(btnNewButton);
    }
}

Answer 1

    package main;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.border.BevelBorder;

public class ImageWindow extends JPanel {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private JFrame frame;
    private Image img;

    /**
     * Launch the application.
     */

    /*
     * private void btnCaptureActionPerformed(java.awt.event.ActionEvent evt)
     * {//GEN-FIRST:event_jButton8ActionPerformed try { CaptureFrame capone =
     * new GetCapture(); this.initFingerprint(this.openFile()); } catch
     * (IOException e1) { e1.printStackTrace(); } catch (InterruptedException
     * e1) { e1.printStackTrace(); }
     * 
     * }
     */

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            public void run() {
                try {
                    ImageWindow window = new ImageWindow();
                    window.frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the application.
     */
    public ImageWindow() {
        initialize();
    }

    /**
     * Initialize the contents of the frame.
     */
    private void initialize() {
        frame = new JFrame();
        frame.setBounds(100, 100, 450, 378);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().setLayout(null);

        this.setForeground(Color.PINK);
        this.setBorder(new BevelBorder(BevelBorder.LOWERED, null, null, null, null));
        this.setBounds(27, 11, 268, 303);
        frame.getContentPane().add(this);

        JButton btnNewButton = new JButton("capture");
        btnNewButton.setToolTipText("");
        btnNewButton.setSelectedIcon(new ImageIcon("D:\\biometric1\\TestJniPrj\\single.jpg"));
        btnNewButton.setBounds(318, 146, 89, 23);
        frame.getContentPane().add(btnNewButton);

        btnNewButton.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                img = Toolkit.getDefaultToolkit().createImage(ImageWindow.this.getClass().getResource("test.png"));
                ImageWindow.this.repaint();
            }
        });
    }

    public void paintComponent(Graphics g) {
        if (img != null) {
            g.drawImage(img, 0, 0, this);
        }
    }
}

希望这有助于：）

我想在Swing中点击按钮显示图像

1 个答案: