这里是官方文档：https://pay.weixin.qq.com/doc/v3/merchant/4012587984 前端调用使用的也是businessType，调试了很多次，拉起支付分订单详情一直提示"商户签名校验失败"，请求各位大佬帮分析下 代码片段，service_id 和 v2 密钥保密 /** * 获取 openBusinessView 所需参数 */ @GetMapping("/business-view") public ApiResult getBusinessViewParams(@RequestParam String outOrderNo) { try { Map params = new HashMap<>(); params.put("mch_id", "1611641336"); params.put("service_id", "我的service_id"); params.put("out_order_no", outOrderNo); params.put("timestamp", String.valueOf(System.currentTimeMillis() / 1000)); params.put("nonce_str", generateNonceStr()); params.put("sign_type", "HMAC-SHA256"); // 生成签名 String sign = generateSignature(params); params.put("sign", sign); return ApiResult.success("success", params); } catch (Exception e) { return ApiResult.fail("生成参数失败: " + e.getMessage()); } } /** * 生成 HMAC-SHA256 签名 */ private String generateSignature(Map params) throws Exception { // 1. 过滤空值并排序 List keys = params.keySet().stream() .filter(k -> !k.equals("sign") && StringUtils.hasText(params.get(k))) .sorted() .collect(Collectors.toList()); // 2. 拼接签名字符串 StringJoiner query = new StringJoiner("&"); for (String key : keys) { query.add(key + "=" + params.get(key)); } String stringSign = query.toString(); // 3. 使用密钥加密 Mac sha256 = Mac.getInstance("HmacSHA256"); SecretKeySpec secretKey = new SecretKeySpec("我的 v2 密钥".getBytes(), "HmacSHA256"); sha256.init(secretKey); byte[] bytes = sha256.doFinal(stringSign.getBytes(StandardCharsets.UTF_8)); // 4. 转成十六进制 return bytesToHex(bytes).toUpperCase(); } /** * 生成随机字符串 */ private String generateNonceStr() { return UUID.randomUUID().toString().replace("-", "").substring(0, 32); } public static String bytesToHex(byte[] bytes) { StringBuilder sb = new StringBuilder(); for (byte b : bytes) { sb.append(String.format("%02x", b)); } return sb.toString(); } 渠道的结果片段： mch_id: "1611641336" nonce_str: "45566a3137424247956962a29b44ef8b" out_order_no: "AIV20250523104335682fe0d74759e" service_id: "00004000000000168722808608323064" sign: "CDDD0719DB3ABDA897D447B9675A9BA63120273A07985535DD837F0A8E8DD480" sign_type: "HMAC-SHA256" timestamp: "1747971706"

原始id:gh_b2f64da3aa12，隐私设置的允许被搜索打开了，还是没效果