文件与文件夹的拷贝

//文件拷贝----------------------------------------------------------------------------
public void copyFile(File src_, File dest_) {
File src = src_;//源文件
File destination = dest_;//目的地
if(!src.isFile()) {
new Exception("ssssssss");
}
InputStream is = null;
OutputStream os = null;
try {
is = new FileInputStream(src);
os = new FileOutputStream(destination,true);//true是可以继续写，flase则覆盖
byte[] flush = new byte[1024];
int len;
while(-1!=(len=is.read(flush))) {
os.write(flush, 0, flush.length);
}
os.flush();//记得手动flush一下
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(null!=os) {
try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(null!=is) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

//文件夹拷贝-------------------------------------------------------------
public class DirCopy {
public static void main(String[] args) {
String srcPath = "d:/javac/bb";
String destPath = "d:/javac/aa";
File src = new File(srcPath);
File dest = new File(destPath);
if(src.isDirectory()) {
dest = new File(destPath, src.getName());
}
copyDirDetil(src,dest);
}

private static void copyDirDetil(File src, File dest) {
if(src.isFile()) {
FileCopy fc = new FileCopy();
fc.copyFile(src, dest);
} else if(src.isDirectory()) {
dest.mkdirs();
for(File temp : src.listFiles()) {
copyDirDetil(temp, new File(dest, temp.getName()));
}
}
}
}