Java 读取PDF文件

package com.wsy; import java.awt.Color; import java.awt.Cursor; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.Image; import java.awt.Point; import java.awt.Rectangle; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.print.Book; import java.awt.print.PageFormat; import java.awt.print.PrinterException; import java.awt.print.PrinterJob; import java.io.File; import java.io.IOException; import java.io.RandomAccessFile; import java.nio.ByteBuffer; import java.nio.channels.FileChannel; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTabbedPane; import javax.swing.JTextField; import javax.swing.JToolBar; import javax.swing.JTree; import javax.swing.JWindow; import javax.swing.Timer; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.WindowConstants; import javax.swing.border.BevelBorder; import javax.swing.event.TreeSelectionEvent; import javax.swing.event.TreeSelectionListener; import javax.swing.filechooser.FileFilter; import com.sun.pdfview.FullScreenWindow; import com.sun.pdfview.OutlineNode; import com.sun.pdfview.PDFDestination; import com.sun.pdfview.PDFFile; import com.sun.pdfview.PDFObject; import com.sun.pdfview.PDFPage; import com.sun.pdfview.PDFPrintPage; import com.sun.pdfview.PageChangeListener; import com.sun.pdfview.PagePanel; import com.sun.pdfview.ThumbPanel; import com.sun.pdfview.action.GoToAction; import com.sun.pdfview.action.PDFAction; import com.util.CreatecdIcon; public class MainFrame extends JFrame implements PageChangeListener, TreeSelectionListener,KeyListener{ /** * @param args */ //放置主内容的面板 JPanel jpmain = new JPanel(); //放置读取PDF文档内容的面板 PagePanel jp; //全屏显示面板 FullScreenWindow fullScreen; //缩位图面板 ThumbPanel thumbs; JScrollPane documentScroller = new JScrollPane(); //PDFRender包中获取PDF文档的PDFFile类 PDFFile pdffile; //用户填写页码的文本框 JTextField pageField; int curpage = -1; JTabbedPane tabbedPane; //用于获取大纲的OutlineNode对象 OutlineNode outline = null; JButton smallButton; JButton fullScreenButton; PageFormat pformat = PrinterJob.getPrinterJob().defaultPage(); String docName; private Timer activityMonitor; private SimulateActivity activity; PagePanel fspp; PageBuilder pb = new PageBuilder(); private Point loc = null; private Point tmp = null; private boolean isDragged = false; public MainFrame() { // TODO 自动生成构造函数存根 try { // com.sun.java.swing.plaf.windows.WindowsLookAndFeel // javax.swing.plaf.metal.MetalLookAndFeel // com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel String lookAndFeel ="com.sun.java.swing.plaf.windows.WindowsLookAndFeel"; UIManager.setLookAndFeel(lookAndFeel); } catch (UnsupportedLookAndFeelException e) { // TODO 自动生成 catch 块 e.printStackTrace(); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InstantiationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } setTitle("电子阅读器"); setSize(new Dimension(900, 700)); getContentPane().setLayout(null); getContentPane().add(CreateMenuBar()); /* * 创建左边的缩位图面板 */ thumbs = new ThumbPanel(null); thumbscroll = new JScrollPane(thumbs, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); thumbscroll.getViewport().setView(thumbs); thumbscroll.getViewport().setBackground(Color.gray); tabbedPane=new JTabbedPane(); tabbedPane.addTab(null, CreatecdIcon.add("02.gif"), thumbscroll); tabbedPane.addTab(null, CreatecdIcon.add("05.gif"), null); tabbedPane.setTabPlacement(JTabbedPane.LEFT); getContentPane().add(tabbedPane); tabbedPane.setBounds(0, 63, 270, 600); //getContentPane().add(thumbscroll); /* *创建中间的内容面板 */ contentPanel = new JScrollPane(); jp=new PagePanel(); jp.addMouseListener(new JPMouseAction()); jp.addMouseMotionListener(new JPMouseMotionAction()); jpmain.setLayout(new GridLayout(0, 1)); contentPanel.setViewportView(jpmain); contentPanel.setBounds(270, 63, 600, 600); getContentPane().add(contentPanel); /* * 创建工具栏 */ getContentPane().add(CreateToolBar()); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); int x = (screen.width - getWidth()) / 2; int y = (screen.height - getHeight()) / 2; setLocation(x, y); } public static void main(String[] args) { // TODO 自动生成方法存根 new MainFrame().setVisible(true); } public JMenuBar CreateMenuBar() { final JMenuBar menuBar = new JMenuBar(); menuBar.setBounds(0, 0, 1000, 25); final JMenu newItemMenuItem1 = new JMenu(); newItemMenuItem1.setText("文件(F)"); menuBar.add(newItemMenuItem1); final JMenuItem newItemMenuItem_1 = new JMenuItem(); newItemMenuItem_1.setText("打开"); newItemMenuItem1.add(newItemMenuItem_1); newItemMenuItem_1.setToolTipText("Open PDF file"); newItemMenuItem_1 .addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent evt) { // TODO 自动生成方法存根 doOpen(); } }); final JMenuItem newItemMenuItem = new JMenuItem(); newItemMenuItem.setText("页面设置"); newItemMenuItem1.add(newItemMenuItem); newItemMenuItem.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent arg0) { // TODO 自动生成方法存根 doPageSetup(); } }); final JMenuItem newItemMenuItem_3 = new JMenuItem(); newItemMenuItem_3.setText("打印"); newItemMenuItem_3.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent arg0) { // TODO 自动生成方法存根 doPrint(); } }); newItemMenuItem1.add(newItemMenuItem_3); final JMenuItem newItemMenuItem_2 = new JMenuItem(); newItemMenuItem_2.setText("退出"); newItemMenuItem_2.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent arg0) { // TODO 自动生成方法存根 doClose(); System.exit(0); } }); newItemMenuItem1.add(newItemMenuItem_2); return menuBar; } Action nextAction = new AbstractAction() { public void actionPerformed(ActionEvent evt) { doNext(); } }; Action prevAction = new AbstractAction() { public void actionPerformed(ActionEvent evt) { doPrev(); } }; Action BigAction=new AbstractAction(){ public void actionPerformed(ActionEvent arg0) { PDFPage page = pdffile.getPage(curpage); Rectangle rect = new Rectangle(0,0, (int)page.getBBox().getWidth(), (int)page.getBBox().getHeight()); //generate the image Image img = page.getImage( rect.width*2, rect.height*2, //width & height rect, // clip rect null, // null for the ImageObserver true, // fill background with white true // block until drawing is done ); if(jpmain!=null){