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ByteArrayOutputStream ba = new ByteArrayOutputStream();
try {
PdfWriter writer = PdfWriter.getInstance(doc, ba);
doc.open();
doc.add(new Paragraph("Hello World"));
} catch (DocumentException e) {
e.printStackTrace();
}
doc.close();
respoWhatsApp网页版聊天软件下载官网nse.setContentType("application/pdf");
response.setContentLength(ba.size());
ServletOutputStream out = response.getOutputStream();
ba.writeTo(out);
out.flush();
Java 里response 就可以实现的。 
WhatsApp网页版语音太快怎么设置laoyouyou625
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.LinkedList;
public class Main {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new FileReader("d:/1.txt"));
String line = null;
LinkedList<String> list = new LinkedList<String>();
while ((line = reader.readLine()) != null) {
list.add(line);
}
for (int i = list.size() - 1; i >= 0; i--) {
System.out.println(list.get(i));
}
reader.close();
}
} 
ZGLGJ120
package zhidao;import java.awt.*;import java.awt.event.*;import java.io.File;import java.text.*;import java.util.*;import java.util.concurrent.ConcurrentHashMap;import javax.swing.*pinterest官网登录;import javax.swing.table.*;public class TokenCategorizer extends JFrame{ private static final long serialVersionUID = 1L; private static final String FILE_NAME = "test.txt"; private static final String[] NAMES = { "Integer numbers", "Real numbers", "Other tokens" }; private static String[][] data = null; private static JList jList = null; private static JTable tableView = null; private static LinkedList<String[]> list = new LinkedList<String[]> (); private static String[] strs = new String[NAMES.length]; private static Vector<SupportedLaF>WhatsApp网页版官网网址; lafVector = new Vector<SupportedLaF> (); private static Map<Integer, Vector<String>> tabelDataMap = new ConcurrentHashMap<Integer, Vector<String>> (); private static final String PLASTIC3D = "com.jgoodies.looks.plastic.Plastic3DLookAndFeel"; private static final String PLASTIC = "com.jgoodies.looks.plastic.PlasticLookAndFeel"; private static final String PLASTXP = "com.jgoodies.looks.plastic.PlasticXPLookAndFeel"; public TokenCategorizer ( String title ) { UIManager.installLookAndFeel ("Plastic3D", PLASTIC3D); UIManager.installLookAndFeel ("Plastic", PLASTIC); UIManaWhatsApp网页版官网下载ger.installLookAndFeel ("PlasticXP", PLASTXP); UIManager.LookAndFeelInfo[] installedLafs = UIManager.getInstalledLookAndFeels (); for ( UIManager.LookAndFeelInfo lafInfo : installedLafs ) { try { Class<?> lnfClass = Class.forName (lafInfo.getClassName ()); LookAndFeel laf = (LookAndFeel) ( lnfClass.newInstance () ); if (laf.isSupportedLookAndFeel ()) { String name = lafInfo.getName (); lafVector.add (new SupportedLaF (name, laf)); } } catch (Exception e) { continue; } } this.setTitle (title); } private static class SupportedLaF { String name; LookAndFeel laf; SupportedLaF ( String name, LookAndFeel laf ) { this.name = name; this.laf = laf; } public String toString () { return name; } } private static void createTable ( TokenCategorizer tc ) { TableModel dataModel = new AbstractTableModel () { private static final long serialVersionUID = 1L; public int getColumnCount () { return NAMES.length; } public int getRowCount () { return data[0].length; } public Object getValueAt ( int row, int col ) { return data[col][row]; } public String getColumnName ( int column ) { return NAMES[column]; } }; tableView = new JTable (dataModel); tableView.setSelectionMode (ListSelectionModel.SINGLE_SELECTION); tableView.setRowSelectionInterval (0, 0); initTableData (tableView, list, strs); tableView.addMouseListener (new MouseAdapter () { @Override public void mouseClicked ( MouseEvent e ) { initTableData (tableView, list, strs); } }); JScrollPane scrollpane = new JScrollPane (tableView); scrollpane.setPreferredSize (new Dimension (500, 400)); tc.add (scrollpawhatsapp网页版养号账号防封攻略ne); } private static void initTableData ( final JTable tableView, final LinkedList<如何加whatsapp网页版好友String[]> list, final String[] strs ) { try { list.clear (); int row = tableView.getSelectedRow (); Vector<String> v = null; if (null != ( v = tabelDataMap.get (row) )) { jList.setListData (v); } else { for ( int j = 0; j < NAMES.length; j++ ) { strs[j] = data[j][row]; } permutations (list, NAMES.length, strs, 0, -1); v = new Vector<String> (); for ( String[] strings : list ) { v.add (Arrays.toString (strings).replaceAll ("[\\[\\]]", "")); } jList.setListData (v); tabelDataMap.put (row, v); } } catch (Exception e) {} } private static void createList ( TokenCategorizer tc ) { ListModel dataModel = new AbstractListModel () { private static final long seriwhatsapp网页版 api群发alVersionUID = 1L; @Override public int getSize () { return NAMES.length; } @Override public Object getElementAt ( int index ) whatsapp网页版 安卓版怎么登录{ return NAMES[index]; } }; jList = new JList (dataModel); } private static void initFrame ( TokenCategorizer tc ) { tc.setLayout (new FlowLayout (FlowLayout.LEFT)); tc.setSize (800, 400); tc.setLocationRelativeTo (null); tc.pack (); tc.whatsapp网页版的用户分布setResizable (false); tc.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); tc.setVisible (true); } private static LinkedList<String[]> permutations ( LinkedList<String[]> list, int count, String[] array, int ind, int startWhatsApp网页版软件怎么加好友, int... indexs ) { start++; if (start > count - 1) { return null; } if (start == 0) { indexs = new int[array.length]; } for ( indexs[start] = 0; indexs[start] < array.length; indexs[start]++ ) { permutations (list, count, array, 0, start, indexs); if (start == count - 1) { String[] temp = new String[count]; for ( int i = count - 1; i >= 0; i-- ) { temp[start - i] = array[indexs[start - i]]; } boolean flag = true; L: for ( int i = 0; i < temp.length; i++ ) { for ( int j = i + 1; j < temp.length; j++ ) { if (temp[i].equals (temp[j])) { flag = false; break L; } } } if (flag) { list.add (temp); } } } return list; } private static void initOthers ( final TokenCategorizer tc ) { JPanel jPanel = new JPanel (); BoxLayout boxLayout = new BoxLayout (jPanel, BoxLayout.Y_AXIS); jPanel.setLayout (boxLayout); jPanel.setPreferredSize (new Dimension (300, 400)); JScrollPane scrollpane = new JScrollPane (jList); scrollpane.setPreferredSize (new Dimension (300, 400)); jPanel.add (scrollpane); final JFileChooser chooser = new JFileChooser (); JPanel bottomPanel = new JPanel (); JButton jButton = new JButton ("Import File Data"); jButton.addActionListener (new Actiwhatsapp网页版有什么用onListener () { @Override public void actionPerformed ( ActionEvent e ) { int returnVal = chooser.showOpenDialog (tc); if (returnVal == JFileChooser.APPROVE_OPTION) { whatsapp网页版聊天记录迁移ios File file = chooser.getSelectedFile (); loadFileData (file.getPath ()); SwingUtilities.updateComponentTreeUI (tc); tabelDataMap.clear (); tableView.setRowSelectionInterval (0, 0); initTableData (tableView, list, strs); } } }); bottomPanel.setLayout (new FlowLayout (FlowLayout.LEFT)); final JComboBox jcb = new JComboBox (lafVector); jcb.addActionListener (new ActionListener () { @Override public void actionPerformed ( ActionEvent e ) { SupportedLaF supportedLaF = ( (SupportedLaF) jcb.getSelectedItem () ); LookAndFeel laf = supportedLaF.laf; try { UIManager.setLookAndFeel (laf); SwingUtilities.updateComponentTreeUI (tc); if (null != chooser) { Swwhatsapp网页版在哪里改用户名ingUtilities.updateComponentTreeUI (chooser); } } catch (UnsupportedLookAndFeelException exc) { ( (DefaultComboBwhatsapp网页版如何录音通话oxModel) jcb.getModel () ).removeElement (supportedLaF); } } }); bottomPanel.add (jcb); bottomPanel.add (jButton); jPanel.add (bottomPanel); tc.add (jPanel); } private static void loadFileData ( String fileName ) { Locale lowhatsapp网页版去哪下载cale = new Locale ("en", "US"); Scanner scanner = null; String result = ""; String line = null; LinkedList<String> listInt = new LinkedList<String> (); LinkedList<String> listDouble = new LinkedList<String> (); LinkedList<String> listOthers = new LinkedList<String> (); try { scanner = new Scanner (new File (fileName)).useDelimiter ("[\\s\r\n\t\f]+"); while (scanner.hasNext ()) { line = scanner.next (); result += line + " "; if (line.matches ("^(\\+|\\-)?[\\d,]+$")) { NumberFormat nf = NumberFormat.getInstance (locale); listInt.add (nf.parse (line).toString ()); } else if (line.matches ("^[\\dE\\.\\+\\-]+$")) { NumberFormat f = NumberFormat.getInstance (locale); if (f instanceof DecimalFormat) { whatsapp网页版台湾有多少用户 ( (DecimalFormat) f ).setDecimalSeparatorAlwaysShown (true); } listDouble.add (f.parse (line).toString ()); } else { listOthers.addwhatsapp网页版刚登录就掉号 (line); } } } catch (Exception e) {} scanner.close (); int max = listInt.size () > listDouble.size () ? listInt.size () > listOthers.size () ? listInt.size () : listOthers.size () : listDouble.size () > listOthers.size () ? listDouble.size () : listOthers.size (); int size1 = listInt.size (); for ( int i = size1; i < max; i++ ) { liwhatsapp网页版账号被禁用stInt.add (" "); } int size2 = listDouble.size (); for ( int i = size2; i < max; i++ ) { listDouble.add (" "); } int size3 = listOthers.size (); for ( int i = size3; i < max; i++ ) { listOthers.add (""); } String reg = "[\\[\\]]";whatsapp网页版不能视频 String intdata = listInt.toString ().replaceAll (reg, ""); String realdata = listDouble.toString ().replaceAll (reg, ""); String otherdata = listOthers.toString ().replaceAll (reg, ""); System.out.println ("Text file: "); System.out.println (result); System.out.println ("sumDouble: "); System.out.println (realdata.replaceAll ("[,\\s]+$", "")); System.out.println ("sumInt: "); System.out.println (intdata.replaceAll ("[,\\s]+$", "")); System.out.println ("sumOther: "); System.out.println (otherdata.replaceAll ("[,\\s]+$", "")); String[] ints = intdata.split (",\\s"); String[] reals = realdata.split (",\\s"); String[] others = otherdata.split (",\\s"); data = new String[][] { ints, reals, others }; } public static void main ( String[] args ) { loadFileData (FILE_NAME); TokenCategorizer tc = new TokenCategorizer ("Categories/columns containing tokens"); createList (tc); createTable (tc); initOthers (tc); initFrame (tc); } } 
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CTRL+F
WhatsApp中文网页版 - WhatsApp官网请注明：WhatsApp中文网页版 - WhatsApp官网 » whatsapp网页版官方网站下载 JAVA 生成了一个pdf文件 可我想让它在JAVA里就能开
