贵阳-积分商城
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无关风月
2025-07-22 74f666605450658b86e1b5ca076500aa341b6f49 
 ruoyi-service/ruoyi-other/src/main/java/com/ruoyi/other/util/payment/wx/WechatPayService.java


@@ -4,7 +4,14 @@


import com.alibaba.fastjson2.JSON;


import com.ruoyi.common.core.domain.R;


import com.ruoyi.other.util.payment.MD5AndKL;


import com.ruoyi.other.util.payment.wx.WechatPayConfig;


import com.ruoyi.other.util.payment.wx.XMLUtil;


import org.apache.commons.codec.digest.DigestUtils;


import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;


import org.bouncycastle.crypto.engines.AESEngine;


import org.bouncycastle.crypto.paddings.PKCS7Padding;


import org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher;


import org.bouncycastle.crypto.params.KeyParameter;


import org.bouncycastle.jce.provider.BouncyCastleProvider;


import org.bouncycastle.openssl.PEMParser;


import org.bouncycastle.openssl.jcajce.JcaPEMKeyConverter;


@@ -12,6 +19,7 @@


import org.springframework.beans.factory.annotation.Autowired;


import org.springframework.stereotype.Service;


import org.springframework.util.StringUtils;


import sun.misc.BASE64Decoder;


import sun.security.util.DerInputStream;


import sun.security.util.DerValue;




@@ -19,16 +27,19 @@


import javax.crypto.Cipher;


import javax.crypto.IllegalBlockSizeException;


import javax.crypto.NoSuchPaddingException;


import javax.crypto.spec.IvParameterSpec;


import javax.crypto.spec.SecretKeySpec;


import javax.net.ssl.HttpsURLConnection;


import javax.net.ssl.KeyManagerFactory;


import javax.net.ssl.SSLContext;


import javax.servlet.http.HttpServletRequest;


import javax.servlet.http.HttpServletResponse;


import java.io.*;


import java.math.BigDecimal;


import java.math.BigInteger;


import java.net.InetAddress;


import java.net.URL;


import java.net.URLEncoder;


import java.net.UnknownHostException;


import java.nio.charset.StandardCharsets;


import java.nio.file.Files;


@@ -38,6 +49,7 @@


import java.security.spec.RSAPublicKeySpec;


import java.security.spec.X509EncodedKeySpec;


import java.util.*;


import java.util.stream.Collectors;




/**


 * 微信支付服务类


@@ -48,16 +60,17 @@


    @Autowired


    private WechatPayConfig wechatPayConfig;


    private static final String RSA_PUBLIC_KEY_FILENAME = "wechat_rsa_public_key.pem";


    private static final String CERT_FOLDER = "C:\\cert\\";


    private static final String CERT_FOLDER = "cert/";


    /**


     * 统一下单


     * native统一下单


     * @param orderNumber 订单号


     * @param totalFee 总金额(分)


     * @param body 商品描述


     * @param openid 用户openid


     * @return 预支付订单信息


     */


    public R unifiedOrder(String orderNumber, String totalFee, String body, String openid, String callbackPath) throws Exception {


    public Map<String, String> unifiedOrder(String orderNumber, String totalFee,


                          String body,


                           String callbackPath) throws Exception {


        int i = new BigDecimal(totalFee).multiply(new BigDecimal("100")).intValue();


        String hostAddress = null;


        try {


@@ -74,45 +87,28 @@


        params.put("out_trade_no", orderNumber);


        params.put("total_fee", String.valueOf(i) );


        params.put("spbill_create_ip", "221.182.45.100"); // 实际应用中应获取客户端IP


        params.put("notify_url", wechatPayConfig.getCallbackPath()+callbackPath);


        params.put("trade_type", "JSAPI");


        params.put("openid", openid);




        params.put("notify_url", "http://221.182.45.100:8084"+callbackPath);


        params.put("trade_type", "NATIVE");


        // 生成签名


        String sign = weixinSignature(params);


        params.put("sign", sign);




        // 将参数转换为XML


        String xmlParams = XMLUtil.mapToXml(params).replaceFirst("^<\\?xml.+?\\?>\\s*", "");




        // 发送请求到微信支付统一下单接口


        String url = "https://api.mch.weixin.qq.com/pay/unifiedorder";


        String result = HttpUtil.post(url, xmlParams);




        // 解析返回结果


        Map<String, String> resultMap = XMLUtil.xmlToMap(result);




        // 验证签名


        if (!verifySign(resultMap, wechatPayConfig.getKey())) {


            return R.fail("微信支付签名验证失败");


//            throw new Exception("微信支付签名验证失败");


            throw new Exception("微信支付签名验证失败");


        }


        if (!resultMap.get("return_code").equals("SUCCESS")) {


            throw new Exception("拉取支付失败");




        // 构建小程序支付所需参数


        Map<String, String> payParams = new HashMap<>();


        payParams.put("appId", wechatPayConfig.getAppId());


        payParams.put("timeStamp", String.valueOf(System.currentTimeMillis() / 1000));


        payParams.put("nonceStr", generateNonceStr());


        payParams.put("package", "prepay_id=" + resultMap.get("prepay_id"));


        payParams.put("signType", "MD5");




        // 生成支付签名


        String paySign = weixinSignature(payParams);


        payParams.put("paySign", paySign);




        //给前端标识


        payParams.put("payMethod","1");


        return R.ok(JSON.toJSONString(payParams));


        }


        resultMap.put("code",orderNumber);


        return resultMap;


    }


    /**


     * 微信下单的签名算法


@@ -436,12 +432,11 @@


        try {


            // 1. 解析回调XML数据


            if (StringUtils.isEmpty(xmlData)) {


//                logger.error("退款回调数据为空");


                return RefundCallbackResult.fail("回调数据为空");


            }




            //2.解析参数


            System.err.println(xmlData);


            System.out.println(xmlData);


            System.out.println("----------------------------------------");


            Map<String, String> resultMap = XMLUtil.xmlToMap(xmlData);


            System.out.println(resultMap.get("req_info"));


@@ -454,7 +449,7 @@


            }




            //4 使用商户API密钥解密req_info（AES-256-CBC算法）


            String decryptData = wxDecrypt(resultMap.get("req_info"), wechatPayConfig.getKey());


            String decryptData = decrypt(resultMap.get("req_info"), wechatPayConfig.getKey());


            Map<String, String> refundDetail = XMLUtil.xmlToMap(decryptData);






@@ -581,7 +576,7 @@


    }




    /**


     * 加载公钥 返回PublicKey


     * 加载公钥 返回PublicKey对象


     */


    public static PublicKey loadPublicKey(String pemContent) throws Exception {


        // 读取PEM文件内容


@@ -683,21 +678,9 @@


    }




    public static void main(String[] args) throws IOException {


/*


        try {


            // 1. 加载公钥


            PublicKey publicKey = loadPublicKey();




            // 2. 加密数据


            String sensitiveData = "用户名";


            String encryptedData = encrypt(sensitiveData, publicKey);


        String info="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";




            System.out.println("加密结果（Base64）:\n" + encryptedData);


        } catch (Exception e) {


            e.printStackTrace();


        }*/




        String info="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";


        String key="fD0JzscfMf295SYtRK3MnPRjSCA4Gahr";


        try {


            String decrypted = decrypt(info, key);


@@ -709,26 +692,31 @@






    public static String decrypt(String encryptedStringA, String merchantKey) throws Exception {


        try {


        // 1. 对加密串A做base64解码，得到加密串B


            byte[] decode = Base64.getDecoder().decode(encryptedStringA);


            String sign = MD5AndKL.MD5Encode(merchantKey, "UTF-8").toLowerCase();


            System.out.println("MD5 Key: " + sign); // 调试输出




        // 2. 对商户key做md5，得到32位小写key*


        String sign = MD5AndKL.MD5Encode(merchantKey, "UTF-8").toLowerCase();




        // 3. 确保BouncyCastle提供者已添加


            if (Security.getProvider("BC") == null) {


                Security.addProvider(new BouncyCastleProvider());


            }




        // 4. 使用AES-256-ECB解密（PKCS7Padding）


            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding", "BC");


            byte[] aesKey = Arrays.copyOf(sign.getBytes("UTF-8"), 16); // 明确指定 UTF-8




        // 注意：微信要求使用AES-256，所以密钥应为32字节（256位）


        // 如果MD5结果是32字节（256位），直接使用


        byte[] aesKey = sign.getBytes(StandardCharsets.UTF_8);




            SecretKeySpec secretKeySpec = new SecretKeySpec(aesKey, "AES");


            cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);




        // 执行解密并指定UTF-8编码


            byte[] decryptedBytes = cipher.doFinal(decode);


            return new String(decryptedBytes, "UTF-8"); // 明确指定 UTF-8


        } catch (Exception e) {


            System.err.println("解密失败: " + e.getMessage());


            throw e;


        return new String(decryptedBytes, StandardCharsets.UTF_8);


        }


    }






}