com.github.xingshuangs.iot.utils.LongUtil Maven / Gradle / Ivy
package com.github.xingshuangs.iot.utils;
/**
* @author xingshuang
*/
public class LongUtil {
private LongUtil() {
}
/**
* 将short转换为字节数组
*
* @param data short数据
* @return 字节数组
*/
public static byte[] toByteArray(long data) {
return toByteArray(data, false);
}
/**
* 将short转换为字节数组
*
* @param data short数据
* @param littleEndian true:小端，false：大端
* @return 字节数组
*/
public static byte[] toByteArray(long data, boolean littleEndian) {
byte[] bytes = new byte[8];
if (littleEndian) {
bytes[0] = (byte) ((data) & 0xFF);
bytes[1] = (byte) ((data >> 8) & 0xFF);
bytes[2] = (byte) ((data >> 16) & 0xFF);
bytes[3] = (byte) ((data >> 24) & 0xFF);
bytes[4] = (byte) ((data >> 32) & 0xFF);
bytes[5] = (byte) ((data >> 40) & 0xFF);
bytes[6] = (byte) ((data >> 48) & 0xFF);
bytes[7] = (byte) ((data >> 56) & 0xFF);
} else {
bytes[0] = (byte) ((data >> 56) & 0xFF);
bytes[1] = (byte) ((data >> 48) & 0xFF);
bytes[2] = (byte) ((data >> 40) & 0xFF);
bytes[3] = (byte) ((data >> 32) & 0xFF);
bytes[4] = (byte) ((data >> 24) & 0xFF);
bytes[5] = (byte) ((data >> 16) & 0xFF);
bytes[6] = (byte) ((data >> 8) & 0xFF);
bytes[7] = (byte) ((data) & 0xFF);
}
return bytes;
}
}