单文件到本地机文件夹的拷贝

来源：作者：出处：巧巧读书 2006-10-20 进入讨论组

关键词：
director
swing
java

package test2;

import java.awt.event.*;
import java.awt.event.ActionListener;
import java.io.*;
import javax.swing.JFrame;
import javax.swing.filechooser.FileFilter;
import javax.swing.JFileChooser;

/**
* @author hx0105

*/
public class CopyFile extends JFrame {

private javax.swing.JPanel jContentPane = null;

private javax.swing.JButton jButton = null;
private javax.swing.JTextField jTextField = null;
private javax.swing.JTextField jTextField1 = null;
private javax.swing.JButton jButton1 = null;
private javax.swing.JButton jButton2 = null;
/**
* This is the default constructor
*/
public CopyFile() {
  super();
  initialize();
}
/**
* This method initializes this
*
* @return void
*/
private void initialize() {
  this.setSize(300, 200);
  this.setContentPane(getJContentPane());
}
/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private javax.swing.JPanel getJContentPane() {
  if (jContentPane == null) {
   jContentPane = new javax.swing.JPanel();
   jContentPane.setLayout(null);
   jContentPane.add(getJButton(), null);
   jContentPane.add(getJTextField(), null);
   jContentPane.add(getJTextField1(), null);
   jContentPane.add(getJButton1(), null);
   jContentPane.add(getJButton2(), null);
  }
  return jContentPane;
}
/**
* This method initializes jButton
*
* @return javax.swing.JButton
*/
private javax.swing.JButton getJButton() {
  if(jButton == null) {
   jButton = new javax.swing.JButton();
   jButton.setBounds(206, 76, 80, 27);
   jButton.setText("copy");
   jButton.addActionListener(new java.awt.event.ActionListener()
   {
    public void actionPerformed(ActionEvent e)
    {
     String from = jTextField.getText();
     String to = jTextField1.getText();
     Copy copy1 = new Copy();
     boolean copy_ok = copy1.copy(from,to);
     if(copy_ok)
     {
      System.out.println("copy is successful!");
     }
     else
     {
      System.out.println("copy is failture!");
     }
    }
   }
   );
  }
  return jButton;
}
/**
* This method initializes jTextField
*
* @return javax.swing.JTextField
*/
private javax.swing.JTextField getJTextField() {
  if(jTextField == null) {
   jTextField = new javax.swing.JTextField();
   jTextField.setBounds(5, 50, 118, 31);
  }
  return jTextField;
}
/**
* This method initializes jTextField1
*
* @return javax.swing.JTextField
*/
private javax.swing.JTextField getJTextField1() {
  if(jTextField1 == null) {
   jTextField1 = new javax.swing.JTextField();
   jTextField1.setBounds(5, 96, 117, 28);
  }
  return jTextField1;
}
/**
* This method initializes jButton1
*
* @return javax.swing.JButton
*/
private javax.swing.JButton getJButton1() {
  if(jButton1 == null) {
   jButton1 = new javax.swing.JButton();
   jButton1.setBounds(125, 53, 76, 27);
   jButton1.setText("file");

   jButton1.addActionListener (new java.awt.event.ActionListener()
   {
    public void actionPerformed (ActionEvent e)
    {
     JFileChooser fc = new JFileChooser();
     fc.setCurrentDirectory (new File("f:"));
    int returnVal = fc.showDialog(CopyFile.this, "OK");

    if (returnVal == JFileChooser.APPROVE_OPTION)
    {
     File file = fc.getSelectedFile();
     jTextField.setText(file.getPath());
    }
    else
    {
     jTextField.setText("f:");

    }
       }
   }
   );
  }
  return jButton1;
}
/**
* This method initializes jButton2
*
* @return javax.swing.JButton
*/
private javax.swing.JButton getJButton2() {
  if(jButton2 == null) {
   jButton2 = new javax.swing.JButton();
   jButton2.setBounds(126, 95, 78, 26);
   jButton2.setText("folder");
   jButton2.addActionListener(new java.awt.event.ActionListener()
        {
          public void actionPerformed (ActionEvent e)
          {
     JFileChooser fc = new JFileChooser();
              fc.setCurrentDirectory (new File ("f:"));
             int returnVal = fc.showDialog(CopyFile.this, "OK");
             if (returnVal == JFileChooser.APPROVE_OPTION)
             {
              File file = fc.getSelectedFile();
              jTextField1.setText(file.getPath());
             }
             else
             {
              jTextField1.setText("f:");
             }
       }
        });
  }
  return jButton2;
}
} // @jve:visual-info decl-index=0 visual-constraint="27,18"

//下面是拷贝文件用到的类

package test2;
import java.io.*;
import java.lang.Exception;
import java.util.*;

public class Copy
{
public boolean copy(String file1,String file2)
{
try //must try and catch,otherwide will compile error
{
//instance the File as file_in and file_out
java.io.File file_in=new java.io.File(file1);
java.io.File file_out=new java.io.File(file2);
FileInputStream in1=new FileInputStream(file_in);
FileOutputStream out1=new FileOutputStream(file_out);
byte[] bytes=new byte[1024];
int c;
while((c=in1.read(bytes))!=-1)
out1.write(bytes,0,c);
in1.close();
out1.close();
return(true); //if success then return true
}