1 /*******************************************  2 *      3 *    文本编辑器及网页源代码浏览器  4 *  5 *    Author: Jintao      6 *   E-mail:zjt1118@gmail.com  7 *   Blog  :www.zhaojintao.cn  8 *  9 ********************************************/ 10 import java.awt.BorderLayout; 11 import java.awt.Container; 12 import java.awt.FileDialog; 13 import java.awt.Frame; 14 import java.awt.Panel; 15 import java.awt.event.ActionEvent; 16 import java.awt.event.ActionListener; 17 import java.awt.event.InputEvent; 18 import java.awt.event.KeyEvent; 19 import java.io.BufferedReader; 20 import java.io.DataOutputStream; 21 import java.io.FileInputStream; 22 import java.io.FileOutputStream; 23 import java.io.IOException; 24 import java.io.InputStream; 25 import java.io.InputStreamReader; 26 import java.io.Reader; 27 import java.io.UnsupportedEncodingException; 28 import java.net.MalformedURLException; 29 import java.net.URL; 30 import java.nio.CharBuffer; 31 import java.sql.Savepoint; 32  33 import javax.swing.JButton; 34 import javax.swing.JFrame; 35 import javax.swing.JMenu; 36 import javax.swing.JMenuBar; 37 import javax.swing.JMenuItem; 38 import javax.swing.JPanel; 39 import javax.swing.JScrollPane; 40 import javax.swing.JTextArea; 41 import javax.swing.JTextField; 42 import javax.swing.KeyStroke; 43  44  45 public class Note extends JFrame{ 46     JMenuBar menub=new JMenuBar(); 47     JTextArea text=new JTextArea(); 48     JTextField urlText=new JTextField(); 49     JMenu files=new JMenu("文件"); 50     JMenu net=new JMenu("网络"); 51     //JMenu help=new JMenu("帮助"); 52     JMenuItem newfile=new JMenuItem("新建"); 53     JMenuItem open=new JMenuItem("打开"); 54     JMenuItem save=new JMenuItem("保存"); 55     JMenuItem saveas=new JMenuItem("另存为"); 56     JMenuItem about=new JMenuItem("关于记事本"); 57     JMenuItem url=new JMenuItem("转到"); 58     String name; 59     JFrame th=this; 60     String openedPath=null; 61     boolean opened=false; 62     boolean reworked=false; 63      64     //初始化窗体 65     Note(String name){ 66         super(name); 67         this.name=name; 68         setSize(600, 400); 69     } 70     //初始化 71     void init() 72     { 73         newfile.setMnemonic(‘N‘); 74         open.setMnemonic(‘O‘); 75         save.setMnemonic(‘S‘); 76         saveas.setMnemonic(‘A‘); 77         url.setMnemonic(‘\r‘); 78         //添加助记符 79          80         newfile.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK)); 81         open.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK)); 82         save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK)); 83         saveas.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,InputEvent.CTRL_MASK)); 84         url.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,InputEvent.CTRL_MASK)); 85         //为控件添加快捷键 86          87          88         files.add(newfile); 89         files.add(open); 90         files.add(save); 91         files.add(saveas); 92         //help.add(about); 93         net.add(url); 94         menub.add(files); 95         menub.add(net); 96         setJMenuBar(menub); 97          98         Container p=getContentPane(); 99         p.setLayout(new BorderLayout());100         p.add(urlText,BorderLayout.NORTH);101         p.add(new JScrollPane(text),BorderLayout.CENTER);102         103         Listen listen=new Listen();104         newfile.addActionListener(listen);105         open.addActionListener(listen);106         save.addActionListener(listen);107         saveas.addActionListener(listen);108         url.addActionListener(listen);109         urlText.addActionListener(listen);110         111     }112     class Listen implements ActionListener113     {114 115         public void actionPerformed(ActionEvent e){116             // TODO Auto-generated method stub117             Object source=e.getSource();118             if (source==newfile) {119                 text.setText("");120                 th.setTitle(name);121                 openedPath=null;122                 opened=false;123             }else if (source==url||source==urlText){124                 System.out.println("url");125                 String ut= "http://"+urlText.getText();126                 try {127                         URL url=new URL(ut);128                         InputStream is= url.openStream();129                         InputStreamReader isr = new InputStreamReader(is,"utf-8");130                         BufferedReader br=new BufferedReader(isr);131                         String data=http://www.mamicode.com/br.readLine();                        132                         text.setText("");133                         while(data!=null)134                         {  135                             String t=text.getText();136                             t+="\r\n";137                             text.setText(t+data);138                             data=http://www.mamicode.com/br.readLine();139                         }                        140                         text.setCaretPosition(0);141                         //System.out.println(content);142                 } catch (MalformedURLException e1) {143                     // TODO Auto-generated catch block144                     e1.printStackTrace();145                 } catch (IOException e1) {146                     // TODO Auto-generated catch block147                     e1.printStackTrace();148                 }149             }else if (source==open) {150                 FileDialog openFile=new FileDialog(th, "打开文件..", FileDialog.LOAD);151                 openFile.setVisible(true);152                 String filePath=openFile.getDirectory()+openFile.getFile();153                 try {154                     InputStreamReader inr =new InputStreamReader(new FileInputStream(filePath),"utf-8");155                     FileInputStream fis=new FileInputStream(filePath);156                     char[] content=new char[fis.available()];157                     inr.read(content);158                     //fis.read(content);159                     text.setText(new String(content));160                     text.setCaretPosition(0);161                     if(openFile.getTitle()!=null)162                     {163                         th.setTitle(openFile.getFile()+name);164                         openedPath=filePath;165                         opened=true;166                     }167                     fis.close();168                     inr.close();169                 } catch (Exception e2) {170                     // TODO: handle exception171                     e2.printStackTrace();172                 }173                 174                 175             }else if (source==save || source==saveas) 176             {177                 String savePath=openedPath;178                 if (savePath==null||source==saveas) {179                     FileDialog saveFile=new FileDialog(th,"保存文件...",FileDialog.SAVE);180                     saveFile.setVisible(true);181                     savePath=saveFile.getDirectory()+saveFile.getFile();182                     System.out.println(saveFile.getTitle());183                 }184                 try {185                     DataOutputStream dos = new DataOutputStream(new FileOutputStream(savePath));186                     //FileOutputStream fos=new FileOutputStream(savePath);187                     //fos.write(text.getText().getBytes());188                     //fos.close();189                     dos.write(text.getText().getBytes("utf-8"));190                     dos.close();191                 } catch (Exception e2) {192                     // TODO: handle exception193                     e2.printStackTrace();194                 }195                 if(source==save)196                 {197                     openedPath=savePath;198                 }199             }200             201         }202         203     }204     /**205      * @param args206      */207     public static void main(String[] args) {208         // TODO Auto-generated method stub209         String name="--涛哥牌记事本--V0.01--";210         Note note=new Note(name);211         note.init();212         note.setVisible(true);213     }214 215 }