图片像素调整jar包，可实现自定义像素，自定义转换类型

package biz; import java.awt.BorderLayout; import java.awt.Component; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.Insets; import java.awt.Toolkit; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List; import javax.imageio.ImageIO; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JProgressBar; import javax.swing.JTextField; import util.FileUtil; import util.TransImage; public class MyImageScaler { static TransThread transThread; static JTextField txtSrc; static JTextField txtDes; static JTextField txtWidth; static JTextField txtHeight; static JComboBox<String> jcb; static JButton start; static JButton stop; static JProgressBar jpb; static JLabel txtStatus; public static void main(String[] args) { final JFrame mainFrm = new JFrame("我的图片缩放器"); mainFrm.setLayout(new BorderLayout(5, 5)); initFrame(mainFrm, 570, 155); Font msyh = new Font("微软雅黑", Font.BOLD, 15); // 设置窗体关闭事件 mainFrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); GridBagLayout gbl = new GridBagLayout(); GridBagConstraints gbc = new GridBagConstraints(); gbc.fill = GridBagConstraints.BOTH; gbc.insets = new Insets(2, 0, 2, 0); gbc.gridwidth = 1; gbc.gridheight = 1; JPanel jpPath = new JPanel(gbl); JLabel dirPath = new JLabel("图片文件夹路径："); dirPath.setFont(msyh); gbc.gridx = 0; gbc.gridy = 0; gbl.setConstraints(dirPath, gbc); jpPath.add(dirPath); txtSrc = new JTextField(33); gbc.gridx = 1; gbc.gridy = 0; gbl.setConstraints(txtSrc, gbc); jpPath.add(txtSrc); JButton btnSrc = new JButton("浏览"); btnSrc.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 1) { String path = getFolderPath(mainFrm); if (path != null) { txtSrc.setText(path); } } } }); gbc.gridx = 2; gbc.gridy = 0; gbl.setConstraints(btnSrc, gbc); jpPath.add(btnSrc); JLabel desPath = new JLabel("输出文件夹路径："); desPath.setFont(msyh); gbc.gridx = 0; gbc.gridy = 1; gbl.setConstraints(desPath, gbc); jpPath.add(desPath); txtDes = new JTextField(33); gbc.gridx = 1; gbc.gridy = 1; gbl.setConstraints(txtDes, gbc); jpPath.add(txtDes); JButton btnDes = new JButton("浏览"); btnDes.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 1) { String path = getFolderPath(mainFrm); if (path != null) { txtDes.setText(path); } } } }); gbc.gridx = 2; gbc.gridy = 1; gbl.setConstraints(btnDes, gbc); jpPath.add(btnDes); JPanel jpBtn = new JPanel(new FlowLayout(FlowLayout.CENTER, 5, 2)); JLabel lblWidth = new JLabel("缩放宽度："); lblWidth.setFont(msyh); jpBtn.add(lblWidth); txtWidth = new JTextField(5); jpBtn.add(txtWidth); JLabel lblHeight = new JLabel("缩放高度："); lblHeight.setFont(msyh); jpBtn.add(lblHeight); txtHeight = new JTextField(5); jpBtn.add(txtHeight); final JLabel lblFileType = new JLabel("文件类型："); lblFileType.setFont(msyh); jpBtn.add(lblFileType); jcb = new JComboBox<String>(new String[] { "jpg", "png" }); jpBtn.add(jcb); start = new JButton("转换"); start.addMouseListener(StartListener.getInstance()); jpBtn.add(start); stop = new JButton("停止"); stop.setEnabled(false); jpBtn.add(stop); JPanel jpStatus = new JPanel(new FlowLayout(FlowLayout.CENTER, 5, 2)); jpb = new JProgressBar(0, 100); jpb.setVisible(false); jpStatus.add(jpb); txtStatus = new JLabel(); txtStatus.setFont(new Font("微软雅黑", Font.BOLD, 12)); jpStatus.add(txtStatus); mainFrm.add(jpPath, BorderLayout.NORTH); mainFrm.add(jpBtn, BorderLayout.CENTER); mainFrm.add(jpStatus, BorderLayout.SOUTH); mainFrm.setVisible(true); // setVisible 设置窗体的可见性。 } // 获取屏幕的分辨率 设置窗体在屏幕的居中位置。 public static void initFrame(JFrame frame, int width, int height) { Toolkit toolkit = Toolkit.getDefaultToolkit(); // 获取一个与系统相关工具类对象 // 获取屏幕的分辨率 Dimension d = toolkit.getScreenSize(); int x = (int) d.getWidth(); int y = (int) d.getHeight(); frame.setBounds((x - width) / 2, (y - height) / 2, width, height); } public static String getFolderPath(Component parent) { JFileChooser fc = new JFileChooser(); fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); fc.setDialogTitle("选择路径"); fc.showDialog(parent, "确定"); File sf = fc.getSelectedFile(); if (sf != null) { return sf.getPath(); } else { return null; } } } class StartListener extends MouseAdapter { private static final StartListener me = new StartListener(); public static StartListener getInstance() { return me; } public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 1) { MyImageScaler.start.removeMouseListener(me); MyImageScaler.start.setEnabled(false); MyImageScaler.transThread = new TransThread(); MyImageScaler.transThread.start(); } } } class StopListener extends MouseAdapter { private static final StopListener me = new StopListener(); public static StopListener getInstance() { return me; } public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 1) { MyImageScaler.transThread.stopFlag=true; } } } class TransThread extends Thread { public boolean stopFlag=false; public void run() { try { MyImageScaler.stop.setEnabled(true); MyImageScaler.stop.addMouseListener(StopListener.getInstance()); MyImageScaler.start.setEnabled(false); MyImageScaler.start.removeMouseListener(StartListener.getInstance()); List<String> fileList = new ArrayList<String>(); FileUtil.getAllSubFiles(MyImageScaler.txtSrc.getText(), MyImageScaler.jcb.getSelectedItem().toString(), fileList); int width = Integer.parseInt(MyImageScaler.txtWidth.getText()); int height = Integer.parseInt(MyImageScaler.txtHeight.getText()); String outputPath = MyImageScaler.txtDes.getText(); MyImageScaler.jpb.setMaximum(fileList.size() - 1); MyImageScaler.jpb.setVisible(true); MyImageScaler.txtStatus.setVisible(true); for (int i = 0; i < fileList.size(); i++) { if (stopFlag) { break; } String filePath=fileList.get(i); File file = new File(filePath); MyImageScaler.txtStatus.setText("正在处理"+file.getName()+"……"+(i+1)+"/"+fileList.size()); MyImageScaler.jpb.setValue(i); BufferedImage image = ImageIO.read(new File(filePath)); if (image.getWidth() > image.getHeight()) { TransImage.resizeImage(filePath, outputPath, width, 0); } else { TransImage.resizeImage(filePath, outputPath, 0, height); } } MyImageScaler.jpb.setVisible(false); MyImageScaler.txtStatus.setText("处理完成！"); MyImageScaler.stop.setEnabled(false); MyImageScaler.stop.removeMouseListener(StopListener.getInstance()); MyImageScaler.start.setEnabled(true); MyImageScaler.start.addMouseListener(StartListener.getInstance()); } catch (Exception e) { e.printStackTrace(); } } }