java 基本数据型之间的转换
java long转换成Bytes
public static byte[] longToBytes(long primitive) { ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES); buffer.putLong(primitive); return buffer.array(); }
java Byte转换成long
public static long bytesToLong(byte[] array) { ByteBuffer buffer = ByteBuffer.allocate(Long.SIZE / Byte.SIZE); buffer.put(array); buffer.flip(); long value = buffer.getLong(); return value; }
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