public static void fileChannelCopy(File s, File t) { FileInputStream fi = null; FileOutputStream fo = null; FileChannel in = null; FileChannel out = null; try { fi = new FileInputStream(s); fo = new FileOutputStream(t); in = fi.getChannel();// 得到对应的文件通道 out = fo.getChannel();// 得到对应的文件通道 in.transferTo(0, in.size(), out);// 连接两个通道,并且从in通道读取,然后写入out通道 } catch (IOException e) { e.printStackTrace(); } finally { try { fi.close(); in.close(); fo.close(); out.close(); } catch (IOException e) { e.printStackTrace(); } } }