Java base64 转换 16进制字符串

最新推荐文章于 2025-03-17 14:42:58 发布

摇滚的书生

最新推荐文章于 2025-03-17 14:42:58 发布

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原文链接：https://xbuba.com/questions/41611248/java-convert-base64-to-hex-string

版权

import java.util.Base64;

/**
*
*/
public class NewClass5 {

    public static void main(String[] args) {
        String guid = "YxRfXk827kPgkmMUX15PNg==";
        byte[] decoded = Base64.getDecoder().decode(guid);
        System.out.println(toHex(decoded));
    }
    private static final char[] DIGITS
            = {'0', '1', '2', '3', '4', '5', '6', '7',
                '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};

    public static final String toHex(byte[] data) {
        final StringBuffer sb = new StringBuffer(data.length * 2);
        for (int i = 0; i < data.length; i++) {
            sb.append(DIGITS[(data[i] >>> 4) & 0x0F]);
            sb.append(DIGITS[data[i] & 0x0F]);
        }
        return sb.toString();
    }

}