package com.cast;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class Demo05_复制多级文件夹 {
public static void main(String[] args) {
copyDir(new File("D:\\abc\\cour"), new File("D:\\abc\\dest"));
}
private static void copyDir(File source, File desk) {
if (source.isDirectory()) {
String sourcedir=source.getName();
File deskdir = new File(desk, sourcedir);
deskdir.mkdirs();
File[] files = source.listFiles();
for (File file : files) {
copyDir(file, deskdir);
}
rename(deskdir);
} else {
String sourcedir=source.getName();
File file = new File(desk, sourcedir);
copyFile(source, file);
}
}
private static void rename(File file) {
File[] files=file.listFiles(new FileFilter() {
@Override
public boolean accept(File pathname) {
return pathname.getName().toLowerCase().endsWith(".txt");
}
});
for (File f : files) {
String filename=f.getName();
int index=filename.lastIndexOf('.');
filename=filename.substring(0,index)+".java";
System.out.println(filename);
f.renameTo(new File(file,filename));
}
}
private static void copyFile(File source, File file) {
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(source);
os = new FileOutputStream(file);
byte[] bys = new byte[1024];
int len = 0;
while ((len = is.read(bys)) != -1) {
os.write(bys, 0, len);
}
System.out.println("复制成功");
} catch(IOException e){
throw new RuntimeException("复制失败");
}finally {
try{
if (os != null) {
os.close();
}
}catch(IOException e){
}
try{
if (is != null) {
is.close();
}
}catch(IOException e){
}
}
}
}