viewsourceframe.java

简易WEB浏览器,用JAVA语言编写的一个浏览器,你可以根据自己的需要对他进行修改.

/*
**源代码框架
*/
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
import javax.swing.border.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileView;
import java.io.*;
import java.util.*;

class ViewSourceFrame extends JFrame implements ActionListener{
	JPanel contentPane;
	JPanel panel1=new JPanel();
	JPanel panel2=new JPanel();
	Border border1;
	
	JButton closebutton=new JButton();
	JButton savebutton=new JButton();
	JScrollPane jScrollPanel=new JScrollPane();
	JTextArea jTextArea1=new JTextArea();
	
	String htmlSource;
	
	/**
	**构造函数,初始化图形用户界面
	*/
	public ViewSourceFrame(String htmlSource){
		
		this.htmlSource=htmlSource;
		enableEvents(AWTEvent.WINDOW_EVENT_MASK);
		setSize(new Dimension(600,500));
		setTitle("源代码");
		setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
		
		contentPane=(JPanel)getContentPane();
		contentPane.setLayout(new BorderLayout());
		
		panel2.setLayout(new FlowLayout());
		
		savebutton.setText("保存");
		closebutton.setText("退出");
		
		closebutton.addActionListener(this);
		savebutton.addActionListener(this);
		
		jScrollPanel.getViewport().add(jTextArea1,null);
		border1=BorderFactory.createEmptyBorder(4,4,4,4);
		panel1.setLayout(new BorderLayout());
		panel1.setBorder(border1);
		panel1.add(jScrollPanel,BorderLayout.CENTER);
		contentPane.add(panel1,BorderLayout.CENTER);
		
		panel2.add(savebutton);
		panel2.add(closebutton);
		
		contentPane.add(panel2,BorderLayout.SOUTH);
		this.jTextArea1.setEditable(true);
		this.jTextArea1.setText(this.htmlSource);
		//设置光标的位置,将其移动到文本区第0个字符
		this.jTextArea1.setCaretPosition(0);
		}
		/*
		**实现监听器接口的actionPerformed函数
		*/
		public void actionPerformed(ActionEvent e){
			String URL="";
			if(e.getSource()==closebutton){
				dispose();
				}
				else if(e.getSource()==savebutton){
					JFileChooser fc=new JFileChooser();
					int returnVal=fc.showSaveDialog(ViewSourceFrame.this);
          File saveFile=fc.getSelectedFile();
         try{
             FileWriter writeOut=new FileWriter(saveFile);
             writeOut.write(jTextArea1.getText());
             writeOut.close();
             }
             catch(IOException ex){
             	System.out.println("保存失败");
             	}
					}
			}
	}