1 /*******************************************
2 *
3 * 文本编辑器及网页源代码浏览器
4 *
5 * Author: Jintao
6 * E-mail:[email protected]
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 ActionListener
113 {
114
115 public void actionPerformed(ActionEvent e){
116 // TODO Auto-generated method stub
117 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=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=br.readLine();
139 }
140 text.setCaretPosition(0);
141 //System.out.println(content);
142 } catch (MalformedURLException e1) {
143 // TODO Auto-generated catch block
144 e1.printStackTrace();
145 } catch (IOException e1) {
146 // TODO Auto-generated catch block
147 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 exception
171 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 exception
193 e2.printStackTrace();
194 }
195 if(source==save)
196 {
197 openedPath=savePath;
198 }
199 }
200
201 }
202
203 }
204 /**
205 * @param args
206 */
207 public static void main(String[] args) {
208 // TODO Auto-generated method stub
209 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 }
时间： 2024-08-21 09:23:24