byte[]数组socket中传送图片的问题

Question

为什么我先把图片转换为byte[]数组然后经过传送再恢复的时候图片大小缩小并少了一块？谢谢大家帮忙
server:
             OutputStream outputToSocket = incomingConnection.getOutputStream();
             InputStream inputFromSocket = incomingConnection.getInputStream();

          File f=new File("d:\\3.bmp"); 
     BufferedInputStream   bufferIn   =   new   BufferedInputStream(inputFromSocket); 
          byte[] buffer=new byte[1024];
     BufferedOutputStream  bw=new BufferedOutputStream(new FileOutputStream(f));
     while(bufferIn.read(buffer)!=-1){
     bw.write(buffer);
     }
          } catch (Exception e) {
             System.out.println("Error handling a client: " + e);
client:
     File f=new File(path);
     byte[] buffer=new byte[1024];
FileInputStream   in   =   new   FileInputStream(f);   
BufferedInputStream  br=new BufferedInputStream(new FileInputStream(f));
while(br.read(buffer)!=-1){
bufferOut.write(buffer);
}

Answer 1

既然你有byte[] 了，就直接用byte操作算了
    OutputStream outputToSocket = incomingConnection.getOutputStream();
    InputStream inputFromSocket = incomingConnection.getInputStream();
    File f = new File("d:\\3.bmp");
    byte[] buffer = new byte[1024];
    int len;
    while ((len = inputFromSocket.read(buffer)) != -1) {
      outputToSocket.write(buffer, 0, len);
    }
    outputToSocket.flush();客户端一样，直接操作byte就可以了。