JAVA NIO 文件保存

tag: java nio 保存文件

/** * 读取文件 * */public  ByteBuffer readFile(String filename){  FileChannel fiChannel;MappedByteBuffer mBuf=null; try {fiChannel = new FileInputStream(filename).getChannel();mBuf = fiChannel.map(FileChannel.MapMode.READ_ONLY, 0, fiChannel.size());  fiChannel.close();  fiChannel = null;  } catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}  return mBuf;        }  /** * 保存文件 * */public void saveFile(ByteBuffer src, String filename){  FileChannel foChannel;try {foChannel = new FileOutputStream(filename).getChannel();foChannel.write(src);  foChannel.close();    foChannel = null;   } catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}  }