复制一个目录下所有的文件夹到另一个目录下代码,Java代码库,德仔网

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【Java】复制一个目录下所有的文件夹到另一个目录下

作者:DDT / 发布于2012/5/14/ 499

Java复制一个目录下所有的文件夹到另一个目录下

import java.io.*;
import java.util.*;
private static File[] copyfoldersList = new File("C:\\Windows\\System32").listFiles();
for (int k = 0; k < copyfoldersList.length; k++) {
if (copyfoldersList[k].isDirectory()) {
LinkedList<String> copysourcepath = new LinkedList<String>(
Arrays.asList(copyfoldersList[k].getAbsolutePath()));
LinkedList<String> copytargetpath = new LinkedList<String>(
Arrays.asList("D:"+ File.separator+ copyfoldersList[k].getAbsolutePath().substring(copyfoldersList[k].getAbsolutePath().lastIndexOf(File.separator))));
while (copysourcepath.size() > 0) {
(new File(copytargetpath.peek())).mkdirs();
File folders = new File(copysourcepath.peek());
String[] file = folders.list();
File temp = null;
for (int i = 0; i < file.length; i++) {
if (copysourcepath.peek().endsWith(File.separator))
temp = new File(copysourcepath.peek(), file[i]);
else
temp = new File(copysourcepath.peek(), file[i]);
FileInputStream input = null;
FileOutputStream output = null;
if (temp.isFile()) {
try {
input = new FileInputStream(temp);
output = new FileOutputStream(new File(copytargetpath.peek(), temp.getName().toString()));
long filelength=input.length();
long buffsize=filelength<10485760L?filelength:10485760L;
byte[] b = new byte[buffsize];
int len;
while ((len = input.read(b)) != -1)
output.write(b, 0, len);
output.flush();
} catch (IOException e) {
System.err.println("复制单个文件操作出错");
} finally {
try {
output.close();
input.close();
} catch (IOException e) {
}
}
} else if (temp.isDirectory()) {
for (File f : temp.listFiles()) {
if (f.isDirectory()) {
copysourcepath.add(f.getPath());
copytargetpath.add(copytargetpath.peek()
+ File.separator + f.getName());
} else if (f.isFile()) {
new File(copytargetpath.peek()+ File.separator+ temp.getName()).mkdirs();
FileInputStream input2 = null;
FileOutputStream output2 = null;
try {
input2 = new FileInputStream(f);
output2 = new FileOutputStream(copytargetpath.peek()+ File.separator+ temp.getName()+ File.separator+ f.getName());
long filelength=input2.length();
long buffsize=filelength<10485760L?filelength:10485760L;
byte[] b = new byte[buffsize];
int len;
while ((len = input2.read(b)) != -1)
output2.write(b, 0, len);
output2.flush();
} catch (IOException e) {
System.err.println("复制单个文件操作出错");
} finally {
try {
output2.close();
input2.close();
} catch (IOException e) {
}
}
}
}
}
}
copysourcepath.removeFirst();
copytargetpath.removeFirst();
}
}
}

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