关于文件的批量重命名的JAVA实现

可以批量的更改文件的扩展名，并同时对文件进行编号。环境为JBuilder9+WindowsXP HOME

+java version 1.4.1_02-b06

主要涉及到file类的一些操作：

原代码如下：

import java.io.*;
import java.lang.String;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.HeadlessException;

/**
* <p>Title: BAT-rename</p>
* <p>Description: 文件批量重命名工具</p>
* <p>Copyrigh: Copyright (c) 2006</p>
* <p>Company: Lucky =Open Source=</p>
* @author Fan Xinlei
* @version 1.0 beta
*/

public class mainFrm
extends JFrame
implements MouseListener, WindowListener {
Button CheckBtn;
TextField TextPath, TextFname, TextFilte;
Label Path, Fname, Filte_Choice;
Choice VarName;
int iFileCount;
Container con;
JPanel Area1, Area2, Area3;
Image icon;

public mainFrm() throws HeadlessException {

super("文件批量重命名工具v1.0");

try {
jbInit();
}
catch (Exception e) {
e.printStackTrace();
}

}

public static void main(String[] args) throws HeadlessException {
mainFrm mainFrm1 = new mainFrm();
}

public void windowOpened(WindowEvent e) {}

public void windowClosing(WindowEvent e) {
System.exit(0);
}

public void windowClosed(WindowEvent e) {}

public void windowIconified(WindowEvent e) {}

public void windowDeiconified(WindowEvent e) {}

public void windowActivated(WindowEvent e) {}

public void windowDeactivated(WindowEvent e) {}

public void mouseClicked(MouseEvent e) {}

public void mousePressed(MouseEvent e) { //核心代码
if (e.getSource() == CheckBtn) {
if (TextPath.getText().length() != 0) {
String fileName = new String(TextPath.getText());
String szPath = new String(TextPath.getText());
File DirObject = new File(szPath);
String file[] = DirObject.list();
if (VarName.getSelectedItem() == "不作更改") { //只更改文件的扩展名
for (int i = 0; i < file.length; i++) {

String tempName, temp;
int iLocation = 0;
File fileObject = new File(fileName + "//" + file[i]);

iLocation = file[i].lastIndexOf('.');
char name[] = new char[20];
for (int j = 0; j < file[i].length(); j++) {

name[j] = file[i].charAt(j);
}
tempName = new String(name, 0, 1 + iLocation);
System.out.println(file[i].lastIndexOf('.'));

temp = fileName + "//" + tempName +
TextFilte.getText();
System.out.println(temp);
File tempFile = new File(temp);
if (fileObject.isFile()) {
try {
fileObject.renameTo(tempFile);

}
catch (SecurityException e_Security) {
System.out.println(e_Security.getMessage());
}

}
}
System.exit(0);

}
else {
for (int i = 0; i < file.length; i++) {
File fileObject = new File(fileName + "//" + file[i]);
System.out.println(file[i]);
System.out.println(fileName + "//" + file[i]);
System.out.println(fileObject.getName());
System.out.println(fileObject.isFile());
if (fileObject.isFile()) {
String tempName = new String();
tempName = fileName + "//" + TextFname.getText() + i + "." +
TextFilte.getText();
System.out.println(tempName);
System.out.println(fileObject.canWrite());
File tempFile = new File(tempName);
/* System.out.println(tempFile.getName()); //返回值成功
System.out.println(fileObject.canWrite()); **/
//返回false

try {
fileObject.renameTo(tempFile);
}
catch (SecurityException e_Security) {
System.out.println(e_Security.getMessage());
}

}
}
System.exit(0);

}
}
else {

int type = JOptionPane.INFORMATION_MESSAGE;
JOptionPane.showMessageDialog(null, "路径不能为空", "提示信息", type);
}
}
}

public void mouseReleased(MouseEvent e) {}

public void mouseEntered(MouseEvent e) {}

public void mouseExited(MouseEvent e) {}

private void jbInit() throws Exception {

Area1 = new JPanel(); //变量初始化，添加事件监听
Area2 = new JPanel();
Area3 = new JPanel();
Area1.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
Area2.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
Area3.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
Path = new Label("请输入文件夹路径");
Fname = new Label("文件名常量部分");
Filte_Choice = new Label("扩展名");
CheckBtn = new Button("^_^ =确认= ^_^");
iFileCount = 0;
TextPath = new TextField(32);
TextFname = new TextField(32);
TextFilte = new TextField("txt", 10);
VarName = new Choice();
VarName.add("不作更改");
VarName.add("数字");
Area1.add(Path);
Area1.add(TextPath);
Area2.add(Fname);
Area2.add(TextFname);
Area3.add(Filte_Choice);
Area3.add(TextFilte);
Area3.add(VarName);
TextPath.setEditable(true);

CheckBtn.addMouseListener(this);
this.addWindowListener(this);

//布局初始化

this.setBounds(100, 100, 300, 300);
this.setResizable(false);
this.setCursor(null);
con = getContentPane();
con.setLayout(new GridLayout(4, 1));
con.add(Area1);
con.add(Area2);
con.add(Area3);
con.add(CheckBtn);
setVisible(true);

}
}