package com.ydtech.utils;


import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.util.Base64;

public class HMAC256Uitil {
    //hmac256
    public static String hmac256(String data, String key) {
        StringBuilder sb = new StringBuilder();
        byte[] bytes = null;
        String encode = null;
        try {
            Mac hmacSHA256 = Mac.getInstance("HMACSHA256");
            try {
                SecretKeySpec hmacSHA2561 = new SecretKeySpec(key.getBytes("utf-8"), "HMACSHA256");
                try {
                    hmacSHA256.init(hmacSHA2561);
                    bytes = hmacSHA256.doFinal(data.getBytes("utf-8"));


                } catch (InvalidKeyException e) {
                    e.printStackTrace();
                }
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
//            BASE64Encoder base64Encoder = new BASE64Encoder();

//            byte[] bytes = data.getBytes("utf-8");
            encode = Base64.getEncoder().encodeToString(bytes);
//            encode = base64Encoder.encode(bytes);
            System.out.println("加密后--" + encode);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return encode;
    }

    public static void main(String[] args) {
        hmac256("<cityCode>140400</cityCode><cityName>长治市</cityName><frameNo>LVVDA11B7AD256799</frameNo><licenseNo>晋DW0716</licenseNo><engineNo>NAAG02917</engineNo><enrollDate>2010-08-23</enrollDate><modelName>奇瑞SQR7150A130轿车</modelName><modelCode/><newVehicle/><extendInfo/>", "123456test");
        String xmlString = "<RequestData><requestHead><seqNo>1d6ff938-ada5-4f39-9fc1-e</seqNo><consumerID>102120</consumerID><consumerAccessKey>123456test</consumerAccessKey><transCode>C1</transCode><transTime>2022-07-12 18:00:00</transTime></requestHead><requestBody><cityCode>140400</cityCode><cityName>长治市</cityName><frameNo>LVVDA11B7AD256799</frameNo><licenseNo>晋DW0716</licenseNo><engineNo>NAAG02917</engineNo><enrollDate>2010-08-23</enrollDate><modelName>奇瑞SQR7150A130轿车</modelName><modelCode/><newVehicle/><extendInfo/></requestBody></RequestData>";
        xmlString = xmlString.substring(xmlString.lastIndexOf("<requestBody>") + 13, xmlString.lastIndexOf("</requestBody>"));
        String consumerAccessKey = hmac256(xmlString, "123456test");
        System.out.println("consumerAccessKey--" + consumerAccessKey);
    }
}