重命名400多个文件没java哪行 - 黑马程序员技术交流社区

package com.xxxxxx;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
class changeName{
public static int count = 0;
public static void main(String [] args){
File rootDir=null;
JFrame frame = new JFrame("重命名mp4文件");
frame.setSize(300,400);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
JButton button = new JButton("打开要重命名的目录");
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
JFileChooser chooser = new JFileChooser();
chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
chooser.showOpenDialog(frame);
File rootDir = chooser.getSelectedFile();
System.out.println(rootDir.getName());
if(rootDir!=null){
iteratorFile(rootDir);
String echo = "共有"+count+"个文件重命名";
JOptionPane.showMessageDialog(frame,echo,"Finished",JOptionPane.INFORMATION_MESSAGE);
}
}
});
frame.add(button);
frame.setVisible(true);
}
public static void iteratorFile(File file){
File [] files = file.listFiles();
for(File f:files){
if (f.isDirectory()){
iteratorFile(f);
}
else {
String fileName = f.getName();
String path = f.getParent();
if(fileName.endsWith(".mp4")){
renameFile(f,path,fileName);
//System.out.println(fileName);
}
}
}
}
public static void renameFile(File f,String path,String oldName){
String newName = oldName.replace('-','_');
File newFile = new File(path,newName);
f.renameTo(newFile);
count ++;
System.out.println(newFile.getParent()+"\\"+newFile.getName()+" has changed OK");
}
}

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