1. byte[]
   
2. buffer=new byte[1024];
   
3. private DataInputStream myDataInputStream = new DataInputStream(new BufferedInputStream(mySocket.getInputStream()));
   
4. private FileOutputStream myFileOutputStream =  new FileOutputStream(new File("C\\:test.png"));
   
5. public void getFile(){
   
6. int count=0;int all=0;do{count=myDataInputStream.read(buffer,0,buffer.length);
   
7. myFileOutputStream.write(buffer,0,count);
   
8. all+=count;//记录一共接收了多少文件
   
9. }
   
10. while(count>-1);
    
11. }

复制代码

最后all的值为9999，并且getFile()报出了数组越界异常。
为什么呢~！！？？？


努力进黑马~！！！

1. byte[]
   
2. buffer=new byte[1024];
   
3. private DataInputStream myDataInputStream = new DataInputStream(new BufferedInputStream(mySocket.getInputStream()));
   
4. private FileOutputStream myFileOutputStream =  new FileOutputStream(new File("C\\:test.png"));
   
5. public void getFile(){
   
6. int count=0;int all=0;
   
7. /*do{count=myDataInputStream.read(buffer,0,buffer.length);
   
8. myFileOutputStream.write(buffer,0,count);
   
9. all+=count;//记录一共接收了多少文件
   
10. }
    
11. while(count>-1);
    
12. */
    
13. while((count=myDataInputStream.read(buffer,0,buffer.length))!=-1){
    
14. myFileOutputStream.write(buffer,0,count);
    
15. all+=count;//记录一共接收了多少文件
    
16. }
    
17. }

复制代码

你用do while循环中 do肯定会执行一次。