java递归复制文件及文件夹

package base;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.File;

import java.io.InputStream;

import java.io.OutputStream;

public class copy {

public static void main(String[] args) throws IOException {

File s = new File("../Test");

File t = new File("../yang");

copyFolder(s,t);

}

/**

* 复制一个目录及其子目录、文件到另外一个目录

* @param src

* @param dest

* @throws IOException

*/

static void copyFolder(File src, File dest) throws IOException {

if (src.isDirectory()) {

if (!dest.exists()) {

dest.mkdir();

}

String files[] = src.list();

for (String file : files) {

File srcFile = new File(src, file);

File destFile = new File(dest, file);

// 递归复制

copyFolder(srcFile, destFile);

}

} else {

InputStream in = new FileInputStream(src);

OutputStream out = new FileOutputStream(dest);

byte[] buffer = new byte[1024];

int length;

while ((length = in.read(buffer)) > 0) {

out.write(buffer, 0, length);

}

in.close();

out.close();

}

}

}

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