复制文件

/**
* 复制文件
*
* @param sourceFile
* @param descFile
*/
public static void copyFiles(File sourceFile, File descFile) {
if (sourceFile == null || !sourceFile.exists()
||descFile == null || !descFile.exists()) {
return;
}
File[] files = sourceFile.listFiles();
if (files == null) {
return;
}
for (File file : files) {
File newFile = new File(descFile + File.separator + file.getName());
if (file.isDirectory()) {
newFile.mkdir();
copyFiles(file, newFile);
} else {
try {
copyFile(file, newFile);
} catch (IOException e) {
Log.getlogger().error("复制文件失败！");
Log.exception(e);
}
}
}
}

private static void copyFile(File sourceFile, File descFile) throws IOException{
if (sourceFile == null || !sourceFile.exists() || descFile == null) {
return;
}
// 新建文件输入流并对它进行缓冲
FileInputStream input = new FileInputStream(sourceFile);
BufferedInputStream inBuff=new BufferedInputStream(input);

// 新建文件输出流并对它进行缓冲
FileOutputStream output = new FileOutputStream(descFile);
BufferedOutputStream outBuff=new BufferedOutputStream(output);

// 缓冲数组
byte[] b = new byte[1024 * 5];
int len;
while ((len = inBuff.read(b)) != -1) {
outBuff.write(b, 0, len);
}
// 刷新此缓冲的输出流
if(outBuff != null){
outBuff.flush();
}
//关闭流
if(inBuff != null){
inBuff.close();
}
if(outBuff != null){
outBuff.close();
}
if(output != null){
output.close();
}
if(input != null){
input.close();
}
}