1 package Io;
2
3 import java.io.BufferedInputStream;
4 import java.io.BufferedOutputStream;
5 import java.io.FileInputStream;
6 import java.io.FileNotFoundException;
7 import java.io.FileOutputStream;
8 import java.io.IOException;
9 import java.util.Date;
10
11 public class BufferedStream_IoTest {
12 public static void main(String[] args) {
13 long startTime = new Date().getTime();
14 FileInputStream fis = null;
15 FileOutputStream fos = null;
16 BufferedInputStream bis = null;
17 BufferedOutputStream bos = null;
18 try {
19 fis = new FileInputStream("C:\\Users\\Samuel\\Pictures\\Allah Will Listen.png");
20 bis = new BufferedInputStream(fis);
21 fos = new FileOutputStream("G:\\IoTest\\Allah Will Listen.png");
22 bos = new BufferedOutputStream(fos);
23 byte[] buf = new byte[1024];
24 int len = 0;
25 while ((len = fis.read(buf)) > 0) {
26 bos.write(buf, 0, len);
27 }
28
29 } catch (FileNotFoundException e) {
30 e.printStackTrace();
31 } catch (IOException e) {
32 e.printStackTrace();
33 } finally {
34 //当关闭流时会自动flush
35 if (fis != null)
36 try {
37 fis.close();
38 } catch (IOException e) {
39 // TODO Auto-generated catch block
40 e.printStackTrace();
41 }
42 }
43 long endTime = new Date().getTime();
44 System.out.println("需要"+(endTime-startTime)/1000);
45 }
46 }
