package com.stylefeng.guns.modular.system.util.zhenglian;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.stylefeng.guns.modular.system.util.SpringContextsUtil;
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import com.stylefeng.guns.modular.system.util.UUIDUtil;
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import com.stylefeng.guns.modular.system.util.zhenglian.model.MessageBody;
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import com.stylefeng.guns.modular.system.util.zhenglian.model.TokenRequest;
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import com.zlpay.assist.encrypt.sm4.SM4Util;
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import com.zlpay.assist.sign.sm2.SM2Util;
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import lombok.extern.slf4j.Slf4j;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* @author zhibing.pu
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* @Date 2025/7/24 14:06
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*/
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@Slf4j
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public class TokenUtil {
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private static ZhengLianConfig zhengLianConfig = SpringContextsUtil.getBean(ZhengLianConfig.class).getZhengLianConfig();
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public static String getToken(TokenRequest tokenRequest) throws Exception {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
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Map<String,String> headerMap = new HashMap<String,String>();
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MessageBody body = new MessageBody();
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headerMap.put("msgId", UUIDUtil.getRandomCode());
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headerMap.put("merchNo", "B00000871");
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headerMap.put("txCode", "ZLPAY.ACC.T0001");
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headerMap.put("version", "1.0.1");
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headerMap.put("signa", "1");
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headerMap.put("signNo", zhengLianConfig.getSignNo());
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headerMap.put("encrp", "1");
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headerMap.put("encrpNo", zhengLianConfig.getEncrpNo());
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headerMap.put("timestamp", sdf.format(new Date()));
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tokenRequest.setAppId(zhengLianConfig.getAppid());
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tokenRequest.setType("04");
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String reqBO = JSON.toJSONString(tokenRequest);
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// 生成对称加密秘钥
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String key = ZhengLianUtil.generateKey(16);
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// 加密数据
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String jsonData = SM4Util.sm4EcbEncrypt(key, reqBO, "NoPadding");
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//加密对称加密的秘钥
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// 获取公钥
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String publicKey = ZhengLianUtil.getPublicKey();
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String secrtKey = SM2Util.encrypt(publicKey, key);
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// 将密文放入body
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body.setData(jsonData);
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body.setSign(ZhengLianUtil.sign(jsonData));
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body.setSecret(secrtKey);
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String result = ZLHttpClientUtil.doPost(zhengLianConfig.getUrl(), headerMap, JSON.toJSONString(body));
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System.out.println("应答内容："+ result);
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MessageBody respBody = JSON.parseObject(result,MessageBody.class);
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// 验签
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boolean checkResult = SM2Util.verify(publicKey, zhengLianConfig.getEncrpNo(), respBody.getSign(), respBody.getData());
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System.out.println("验签结果：" + checkResult);
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// 获取私钥
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String privateKey = ZhengLianUtil.getPrivateKey();
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// 解密对称秘钥
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String k = SM2Util.decrypt(privateKey, respBody.getSecret());
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System.out.println("对称秘钥：" + k);
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// 解密业务报文
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String backData = SM4Util.sm4EcbDecrypt(k, respBody.getData());
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System.out.println("返回业务报文：" + backData);
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JSONObject jsonObject = JSON.parseObject(backData);
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String sysRtnCode = jsonObject.getString("sysRtnCode");
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if(!"000000".equals(sysRtnCode)){
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log.error("获取token失败！{}", jsonObject.getString("sysRtnMsg"));
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throw new Exception(jsonObject.getString("sysRtnMsg"));
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}
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JSONObject bizData = jsonObject.getJSONObject("bizData");
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String resCode = bizData.getString("resCode");
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if(!"S010000".equals(resCode)){
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log.error("获取token失败！{}", bizData.getString("resMsg"));
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throw new Exception(jsonObject.getString("resMsg"));
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}
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return bizData.getString("token");
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}
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}
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