58 lines
1.8 KiB
Java
58 lines
1.8 KiB
Java
package com.example.demo.Service;
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import java.nio.ByteBuffer;
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public class HexToCharArray {
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public static void main(String[] args) {
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// // 示例16进制字符串的ByteBuffer
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// ByteBuffer buffer = ByteBuffer.wrap(new byte[]{0x4A, 0x6B, 0x4C, 0x6D});
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//
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// // 将 ByteBuffer 转换为字符数组
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// char[] charArray = byteBufferToCharArray(buffer);
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//
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// // 打印字符数组
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// System.out.println(charArray);
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String hexString = "4A6B4C6D";
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// 将16进制字符串转换为字符数组
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char[] charArray = hexStringToCharArray(hexString);
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// 打印字符数组
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System.out.println(charArray);
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}
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public static char[] byteBufferToCharArray(ByteBuffer buffer) {
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// 确保读取时从开头开始
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buffer.rewind();
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// 创建字符数组，每个字节转换为一个字符
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char[] charArray = new char[buffer.remaining()];
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for (int i = 0; i < charArray.length; i++) {
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// 逐字节读取并转换为字符
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charArray[i] = (char) buffer.get();
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}
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return charArray;
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}
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public static char[] hexStringToCharArray(String hexString) {
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// 每两个十六进制字符表示一个字节，所以字符数组的长度为十六进制字符串长度的一半
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int length = hexString.length() / 2;
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char[] charArray = new char[length];
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for (int i = 0; i < length; i++) {
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// 取出两个十六进制字符并解析为一个字节
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String hexPair = hexString.substring(2 * i, 2 * i + 2);
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int byteValue = Integer.parseInt(hexPair, 16);
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// 转换为字符并存入数组
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charArray[i] = (char) byteValue;
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}
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return charArray;
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}
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}
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