108 lines
4.2 KiB
Java
108 lines
4.2 KiB
Java
package com.zhgd.xmgl.util;
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import cn.hutool.core.util.RandomUtil;
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import cn.hutool.http.HttpRequest;
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import cn.hutool.http.HttpUtil;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.codec.binary.Hex;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.crypto.Cipher;
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import javax.crypto.Mac;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import java.nio.charset.StandardCharsets;
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import java.util.HashMap;
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import java.util.Locale;
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import java.util.Map;
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/**
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* @author hx
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* @date 2023/9/13 11:12
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*/
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public class EncryptUtils {
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private static final Logger log = LoggerFactory.getLogger(EncryptUtils.class);
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private static final String KEY_ALGORITHM = "AES";
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/**
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* 加密算法 算法名称/加密模式/数据填充方式
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*/
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private static final String DEFAULT_CIPHER_ALGORITHM = "AES/CBC/PKCS5Padding";
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/**
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* AES解密
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*
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* @param secret 密钥
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* @param content 解密内容
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* @return Json字符串
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*/
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public static String decryptAes(String secret, String content) {
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try {
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if (StringUtils.isBlank(content)) {
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return null;
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}
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//解析BASE64字符串为byte数组
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byte[] encryptedBytes = Base64.decodeBase64(content);
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//密钥
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byte[] keyBytes = secret.getBytes(StandardCharsets.UTF_8);
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SecretKeySpec keySpec = new SecretKeySpec(keyBytes, KEY_ALGORITHM);
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//AES偏移量
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byte[] initParam = secret.substring(0, 16).getBytes(StandardCharsets.UTF_8);
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IvParameterSpec ivParameterSpec = new IvParameterSpec(initParam);
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Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);
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cipher.init(Cipher.DECRYPT_MODE, keySpec, ivParameterSpec);
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byte[] byEnd = cipher.doFinal(encryptedBytes);
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//加密后的byte数组直接转字符串
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return new String(byEnd, StandardCharsets.UTF_8);
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} catch (Exception e) {
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log.error("AES解密错误:" + e.getCause());
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log.error("error：", e);
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}
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return null;
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}
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public static void main(String[] args) {
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try {
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String projectCode = "5134000000000082";
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String appSecret = "a5c8a5e8df2b4706bea408d0939410e3";
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Map<String, String> params = new HashMap<>();
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String nonce = RandomUtil.randomString(16);
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String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
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String appKey = "b17f24ff026d40949c85a24f4f375d42";
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params.put("appKey", appKey);
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params.put("nonce", nonce);
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params.put("timestamp", timestamp);
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params.put("projectCode", projectCode);
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//签名
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String splicingStr = (nonce + "&" + timestamp + "&" + appKey + "&" + projectCode).toUpperCase(Locale.ROOT);
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SecretKey key = new SecretKeySpec(appSecret.getBytes(StandardCharsets.UTF_8), "HmacMD5");
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Mac mac = Mac.getInstance(key.getAlgorithm());
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mac.init(key);
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byte[] code = mac.doFinal(splicingStr.getBytes(StandardCharsets.UTF_8));
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String sign = Hex.encodeHexString(code);
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JSONObject jsonObject = new JSONObject();
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params.put("sign", sign);
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String toParams = HttpUtil.toParams(params);
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//发送请求
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String bodyResult = HttpRequest.post("http://lznmg.xinyegk.com/api/v1/getCompanyInfo?" + toParams)
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.header("Content-Type", "application/json")
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.body(jsonObject.toJSONString())
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.execute()
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.body();
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JSONObject result = JSON.parseObject(bodyResult);
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//成功之后进行数据解密
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if ("0".equals(result.getString("code")) && result.get("data") != null) {
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String data = decryptAes(appSecret, result.getString("data"));
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log.info("解密之后的数据:" + data);
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}
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} catch (Exception e) {
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log.error("error：", e);
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}
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}
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}
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