package com.xiaopeng.trafficControl.util;
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import com.xiaopeng.trafficControl.DecodingException;
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import org.apache.commons.codec.DecoderException;
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import org.apache.commons.codec.binary.Hex;
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/**
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* 与字节16进制相关的工具类<br/>
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*/
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public class HexUtil {
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/** 将十六进制字符串转成字节数组 */
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public static byte[] toHexBytes(String hexText) {
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try {
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return Hex.decodeHex(hexText.toCharArray());
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} catch (DecoderException e) {
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throw new DecodingException(e);
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}
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}
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/** 将字节数组转成十六进制字符串(字母小写) */
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public static String toLowerCase(byte[] hex) {
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return new String(Hex.encodeHex(hex, true));
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}
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/** 将字节数组转成十六进制字符串(字母大写) */
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public static String toUpperCase(byte[] hex) {
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return new String(Hex.encodeHex(hex, false));
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}
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/** 将字节数组转成整数 */
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public static int hashToInt(byte[] hash) {
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return (int) (hash[3] << 24 | hash[2] << 16 | hash[1] << 8 | hash[0]);
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}
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}
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