[分享]用Swing写的一个复制文件的程序

没怎么做过Swing方面的,对纯纯新手可能这程序能起到一点点启示作用吧...

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CopyMp3类

import java.io.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class CopyMp3
{
public static void main(String[] args)
{
MainFrame frm = new MainFrame();
frm.setVisible(true);
}
}

class MainFrame extends JFrame
{
public MainFrame()
{
super("COPY");
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(300,160);
MainPanel pan = new MainPanel();
setContentPane(pan);
setLayout(null);
}
}

class MainPanel extends JPanel
{
JTextArea txtInFile;
JTextArea txtOutFile;
JFileChooser open;
String strFilePath;
String strFilePathCopyTo;
public MainPanel()
{
JLabel lblIn = new JLabel("源文件:");
lblIn.setBounds(30, 30, 50, 20);
txtInFile = new JTextArea();
txtInFile.setBounds(80,30,100,20);

JButton btnSelect = new JButton("选择文件");
btnSelect.setBounds(190, 30, 80, 20);

open = new JFileChooser();

btnSelect.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
open.showOpenDialog(null);
strFilePath = open.getSelectedFile().getPath();
((JButton)e.getSource()).setLabel("已选");
txtInFile.setText(strFilePath);

System.out.println(txtInFile.getText());

System.out.println("打开文件");
}
}
);

JLabel lblOut = new JLabel("复制到:");
lblOut.setBounds(30, 60, 50, 20);
txtOutFile = new JTextArea();
txtOutFile.setBounds(80,60,100,20);

JButton btnSelectCopyTo = new JButton("选择文件");
btnSelectCopyTo.setBounds(190, 60, 80, 20);

btnSelectCopyTo.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
open.showSaveDialog(null);
strFilePathCopyTo = open.getSelectedFile().getPath();
((JButton)e.getSource()).setLabel("已选");
txtOutFile.setText(strFilePathCopyTo);

System.out.println(txtOutFile.getText());

System.out.println("打开文件");
}
}
);

JButton btnCopy = new JButton("开始复制");
btnCopy.setBounds(60, 90, 90, 20);

btnCopy.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
strFilePath = txtInFile.getText();
strFilePathCopyTo = txtOutFile.getText();

System.out.println(strFilePath);
System.out.println(strFilePathCopyTo);

IOTest.copyFile(strFilePath, strFilePathCopyTo);
}
});



add(lblIn);
add(txtInFile);
add(btnSelect);
add(lblOut);
add(txtOutFile);
add(btnSelectCopyTo);
add(btnCopy);
}
}


IOTest类

import java.io.*;
import javax.swing.*;
public class IOTest
{
public static void copyFile(String in,String out)
{
FileInputStream fin = null;
FileOutputStream fout = null;
try
{
fin = new FileInputStream(new File(in));
fout = new FileOutputStream(new File(out));
byte[] b = new byte[512];

while(true)
{
if(fin.read(b)!=-1)
{
fout.write(b);
}
else
{
break;
}
}
System.out.println("成功将文件:" + in + "复制到:" + out);
JOptionPane.showMessageDialog(null, "文件已成功复制!");
}
catch(IOException ioe)
{
ioe.printStackTrace();
}
catch(Exception e)
{
e.printStackTrace();
}
finally
{
try
{
fin.close();
fout.close();
}catch(IOException ioe)
{
ioe.printStackTrace();
}
}

}

}

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不错！支持一下！
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我现在正在学swing，希望多多交流！

[此贴子已经被作者于2007-1-25 17:13:34编辑过]

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多谢了。
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好像老千的口吻
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