java 做的浏览器 

 1 package com.yw.ie;
 2 
 3 import java.awt.*;
 4 import java.io.IOException;
 5 import java.net.URL;
 6 import javax.swing.*;
 7 import java.awt.event.*;
 8 import javax.swing.event.*;
 9 
10 public class WebBrowser extends JFrame{
11 
12  JPanel contentPane;
13  BorderLayout borderLayoutAll=new BorderLayout();
14  JLabel jLabelPrompt=new JLabel(); //状态提示框
15  BorderLayout borderLayoutMain=new BorderLayout();
16  JPanel jPanelMain=new JPanel();
17  JTextField textFieldURL=new JTextField(); //URL输入框
18  JEditorPane jEditorPane=new JEditorPane(); //显示网页容器
19  
20  /**
21   * 构造函数
22   * @param args
23   */
24  public WebBrowser(){
25   
26    try {
27     Init();
28    } catch (Exception e) {
29     // TODO 自动生成 catch 块
30     e.printStackTrace();
31    }
32   
33  }
34  private void Init() throws Exception{
35   contentPane=(JPanel) getContentPane();
36   contentPane.setLayout(borderLayoutAll);
37   jPanelMain.setLayout(borderLayoutMain);
38   jLabelPrompt.setText("请输入URL");
39   textFieldURL.setText("");
40   textFieldURL.addActionListener(new java.awt.event.ActionListener(){
41    public void actionPerformed(ActionEvent e){
42     textFieldURL_actionPerformed(e);
43    }
44   });
45   jEditorPane.setEditable(false);
46   jEditorPane.addHyperlinkListener(new javax.swing.event.HyperlinkListener(){
47    public void hyperlinkUpdate(HyperlinkEvent e){
48     jEditorPane_hyperlinkUpdate(e);
49    }
50   });
51   JScrollPane scrollPane=new JScrollPane();
52   scrollPane.getViewport().add(jEditorPane);
53   jPanelMain.add(textFieldURL,"North");
54   jPanelMain.add(scrollPane,"Center");
55   contentPane.add(jLabelPrompt,"North");
56   contentPane.add(jPanelMain,"Center");
57   enableEvents(AWTEvent.WINDOW_EVENT_MASK);
58   this.setSize(new Dimension(600,500));
59   this.setTitle("迷你IE");
60   this.setVisible(true);
61  }
62  void textFieldURL_actionPerformed(ActionEvent e){
63   try {
64    jEditorPane.setPage(textFieldURL.getText());//显示URL
65   } catch (IOException e1) {
66    JOptionPane msg=new JOptionPane();
67    JOptionPane.showMessageDialog(this, "URL地址不正确："+textFieldURL.getText(),"输入不正确",0);
68   }
69   
70  }
71  void jEditorPane_hyperlinkUpdate(HyperlinkEvent e){
72   if(e.getEventType()==javax.swing.event.HyperlinkEvent.EventType.ACTIVATED){
73    try {
74     URL url=e.getURL();
75     jEditorPane.setPage(url);
76     textFieldURL.setText(url.toString());
77    } catch (Exception io) {
78     // TODO: handle exception
79     JOptionPane msg=new JOptionPane();
80     JOptionPane.showMessageDialog(this,"打开该链接失败！","输入不正确",0);
81    }
82    
83   }
84  }
85  protected void processWindowEvent (WindowEvent e){
86   super.processWindowEvent(e);
87   if(e.getID()==WindowEvent.WINDOW_CLOSING){
88    System.exit(0);
89   }
90  }
91  public static void main(String[] args) {
92   
93   new WebBrowser();
94  }
95 
96 }

 

posted on 2013-06-30 17:56  无知的山羊  阅读(537)  评论(0)    收藏  举报

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