Java — How to read an unknown number of bytes from an inputStream (socket/socketServer)?

Question

Looking to read in some bytes over a socket using an inputStream. The bytes sent by the server may be of variable quantity, and the client doesn\'t know in advance the lengt

Answer 1

Assuming the sender closes the stream at the end of the data:

ByteArrayOutputStream baos = new ByteArrayOutputStream();

byte[] buf = new byte[4096];
while(true) {
  int n = is.read(buf);
  if( n < 0 ) break;
  baos.write(buf,0,n);
}

byte data[] = baos.toByteArray();