JAVA文件拷贝（NIO实现）

java 文件拷贝通过NIO实现
http://www.exampledepot.com/egs/java.nio/File2File.html

1.     try {
2.         // Create channel on the source
3.         FileChannel srcChannel = new FileInputStream("srcFilename").getChannel();
4.     
5.         // Create channel on the destination
6.         FileChannel dstChannel = new FileOutputStream("dstFilename").getChannel();
7.     
8.         // Copy file contents from source to destination
9.         dstChannel.transferFrom(srcChannel, 0, srcChannel.size());
10.     
11.         // Close the channels
12.         srcChannel.close();
13.         dstChannel.close();
14.     } catch (IOException e) {
15.     }