frame1.java

向数据库中写图片文件并从数据库中取图片文件

package untitled22;

import java.awt.*;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.SQLException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.io.*;
import java.sql.ResultSet;

public class Frame1 extends JFrame {
    JPanel contentPane;
    ImageIcon imageIcon = new ImageIcon("c://aa.jpg");
    JLabel jLabel1 = new JLabel(imageIcon);
    JLabel jLabel2 = new JLabel();
    JButton jButton1 = new JButton();
    JButton jButton2 = new JButton();
    public Frame1() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(null);
        setSize(new Dimension(400, 300));
        setTitle("Frame Title");
        jLabel1.setText("imageIcon");
        jLabel1.setBounds(new Rectangle(47, 35, 151, 92));
        jLabel2.setText("jLabel2");
        jLabel2.setBounds(new Rectangle(44, 151, 163, 120));
        jButton1.setBounds(new Rectangle(241, 55, 109, 47));
        jButton1.setText("写图片");
        jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));
        jButton2.setBounds(new Rectangle(245, 178, 112, 57));
        jButton2.setText("读图片");
        jButton2.addActionListener(new Frame1_jButton2_actionAdapter(this));
        contentPane.add(jLabel1);
        contentPane.add(jLabel2);
        contentPane.add(jButton1);
        contentPane.add(jButton2);
    }

    public void jButton1_actionPerformed(ActionEvent e) {

        try {
            InputStream fis = new FileInputStream("c://aa.jpg");
            Test t = new Test();
            t.setIs(fis);
            t.add();
        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
        }

    }

    public void jButton2_actionPerformed(ActionEvent e) {
        try {

            Test t = new Test();
            t.select();
            InputStream fis = t.getIs();
            byte[] b = new byte[10000];
            fis.read(b);
            this.imageIcon = new ImageIcon(b);
            this.jLabel2.setIcon(imageIcon);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

    }
}


class Frame1_jButton2_actionAdapter implements ActionListener {
    private Frame1 adaptee;
    Frame1_jButton2_actionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton2_actionPerformed(e);
    }
}


class Frame1_jButton1_actionAdapter implements ActionListener {
    private Frame1 adaptee;
    Frame1_jButton1_actionAdapter(Frame1 adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.jButton1_actionPerformed(e);
    }
}