JAVA 遍历文件夹下文件并更改文件名称

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周末因为一些原因，需要批量更改一些文件的名称，使其随机，就随手写了点代码。

增加一个随机字母：

public static void changeName(String path){
File file = new File(path);
File[] files = file.listFiles();
for (int i = 0; i < files.length; i++) {
if(files[i].isDirectory()){
changeName(files[i].toString());
}else{
String name = files[i].getAbsolutePath();
files[i].renameTo(new File("G:\\newSong\\"+getChar()+files[i].getName()));
}}}public static String getChar(){
String[] datas = {"a","b","c","d","e","f","g","h","k","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
Random r = new Random();
return datas[r.nextInt(datas.length-1)];
}
public static void main(String[] args) {
changeName("G:\\song");
}

删除掉随机字母

public static void changeName(String path){
File file = new File(path);
File[] files = file.listFiles();
for (int i = 0; i < files.length; i++) {
if(files[i].isDirectory()){
changeName(files[i].toString());
}else{
String name = files[i].getAbsolutePath();//newSong\\
String nameStr = files[i].getName().substring(1,files[i].getName().length());
files[i].renameTo(new File("G:\\song\\"+nameStr));
}}}public static String getChar(){
String[] datas = {"a","b","c","d","e","f","g","h","k","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
Random r = new Random();
return datas[r.nextInt(datas.length-1)];
}
public static void main(String[] args) {
changeName("G:\\newSong");
}