byte int 转换
/** * 将byte类型数据转为int型 */public static int bytesToInt(byte[] bytes) { int mask = 0xff, temp = 0, result = 0; for (int i = 0; i < 4; i++) { result <<= 8; temp = bytes[i] & mask; result |= temp; } return result;}/** * 将int类型数据转为byte型 */public static byte[] intToBytes(int num){ byte[] result = new byte[4]; for(int i=0;i<4;i++){ result[i] = (byte)(num>>>(24-i*8)); } return result;}