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2024年2月19日发(作者：html手机模拟器)
if (null == bytes || beginIndex < 0 || < beginIndex + 8) {return -1;}try {bytes[beginIndex++] = (byte) (data & 0xff);bytes[beginIndex++] = (byte) (data >> 8 & 0xff);bytes[beginIndex++] = (byte) (data >> 16 & 0xff);bytes[beginIndex++] = (byte) (data >> 24 & 0xff);bytes[beginIndex++] = (byte) (data >> 32 & 0xff);bytes[beginIndex++] = (byte) (data >> 40 & 0xff);bytes[beginIndex++] = (byte) (data >> 48 & 0xff);bytes[beginIndex++] = (byte) (data >> 56 & 0xff);} catch (RuntimeException e) {throw e;}return beginIndex;}/*** 字节数组转整型** @param bytes 待转换数组* @param beginIndex 数组起始下标* @return*/public static int bytes2Int(byte[] bytes, int beginIndex) {if (null == bytes || beginIndex < 0 || < beginIndex + 4) {return -1;}int result = 0;try {int tmpVal = 0;for (int i = 0; i < 4; i++) {tmpVal = (bytes[i + beginIndex] << (i * 8));switch (i) {
case 0:tmpVal = tmpVal & 0x000000FF;break;case 1:tmpVal = tmpVal & 0x0000FF00;break;case 2:tmpVal = tmpVal & 0x00FF0000;break;case 3:tmpVal = tmpVal & 0xFF000000;break;}result |= tmpVal;}} catch (RuntimeException e) {throw e;}return result;}/*** 字节数组转长整型** @param bytes 待转换数组* @param beginIndex 数组起始下标* @return*/public static long bytes2Long(byte[] bytes, int beginIndex) {if (null == bytes || beginIndex < 0 || < beginIndex + 8) {return -1L;}long result = 0L;try {int shift = 0;
for (int i = 0; i < 8; i++) {shift = i << 3;result |= ((long) 0xff << shift) & ((long) bytes[i + beginIndex] << shift);}} catch (RuntimeException e) {throw e;}return result;}
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