code: int recoverNetworkBytesOrder(byte[] orderBytes) {
  		int sourceNumber = 0;
  		for (int i = 0; i < 4; i++) {
  			sourceNumber <<= 8;
  			sourceNumber |= orderBytes[i] & 0xff;
  		}
  		return sourceNumber;
  	}
docs: 还原4个字节的网络字节序