1 package test;
2 import java.io.*;
3 import java.nio.channels.FileChannel;
4 public class Test31
5 {
6 public static void main(String[] args) throws Exception
7 {
8 String dir = "E:/";
9 // 调用方法
10 copyFile(dir + "DV-1676.mp4", dir + "DV-1676_copy.mp4");
11 }
12 public static boolean copyFile(String readfile, String writefile) throws Exception
13 {
14 FileInputStream fis = null;
15 FileOutputStream fos = null;
16 // 定义两个直连的文件管道
17 FileChannel in = null, out = null;
18 fis = new FileInputStream(readfile);
19 fos = new FileOutputStream(writefile);
20 in = fis.getChannel();
21 out = fos.getChannel();
22 // 直接让流流向要拷贝的文件
23 out.transferFrom(in, 0, in.size());
24 in.close();
25 out.close();
26 fis.close();
27 fos.close();
28 return true;
29 }
30 }
