客户端

1. public class TCPClientPic {
   
2. 
   
3. public static void main(String[] args) throws Exception{
   
4. 
   
5. Socket socket = new Socket("127.0.0.1",20001);
   
6. 
   
7. InputStream is = socket.getInputStream();
   
8. OutputStream os = socket.getOutputStream();
   
9. 
   
10. BufferedInputStream bis = new BufferedInputStream(new FileInputStream(new File("d:\\star.jpg")));
    
11. BufferedOutputStream bosout = new BufferedOutputStream(os);
    
12. BufferedInputStream bisin = new BufferedInputStream(is);
    
13. int len = 0;
    
14. while((len = bis.read())!=-1){
    
15. bosout.write(len);
    
16. }
    
17. socket.shutdownOutput();
    
18. byte[] buf = new byte[30];
    
19. len = bisin.read(buf);
    
20. System.out.println(Arrays.toString(buf));
    
21. System.out.println(new String(buf) );
    
22. 
    
23. 
    
24. bis.close();
    
25. bisin.close();
    
26. bosout.close();
    
27. socket.close();
    
28. 
    
29. }
    
30. }

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服务器端

1. public class TCPReceivePic {
   
2. 
   
3. public static void main(String[] args) throws Exception {
   
4. ServerSocket ss = new ServerSocket(20001);
   
5. 
   
6. Socket socket = ss.accept();
   
7. System.out.println(socket.getInetAddress().getHostAddress());
   
8. 
   
9. InputStream is = socket.getInputStream();
   
10. OutputStream os = socket.getOutputStream();
    
11. BufferedInputStream bisin = new BufferedInputStream(is);
    
12. BufferedOutputStream bosout = new BufferedOutputStream(os);
    
13. BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(
    
14. new File("d:\\copyPid.jpg")));
    
15. 
    
16. int len = 0;
    
17. while ((len = bisin.read()) != -1) {
    
18. bos.write(len);
    
19. }
    
20. bosout.write("nihao".getBytes());
    
21. 
    
22. bisin.close();
    
23. bos.close();
    
24. bisin.close();
    
25. socket.close();
    
26. ss.close();
    
27. 
    
28. }
    
29. }

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客户端结果  [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
也就是说我 在服务器端返回的nihao 没有返回 怎么回事 求解！！！！！！

服务器加上bosout.flush()

忘了 bisin.close();

bos.close();

bisin.close();  写了俩个 忘关bosout了 我说的么  谢了

加油哈，好好努力，为了黑马