https://api.weixin.qq.com/wxa/getwxacodeunlimit 这个生成二维码的接口，path 我传pages/home/shoppingMall/goodsDetails就可以生成二维码，我传pages/home/shoppingMall/goodsDetails?id=118 就不行，不能带参数的话，跳转不到对应页面

第一步生成签名： [图片] 已使用签验证工具，验证 明文与生成的签名，结果是 验证通过。 [图片] 第二步，提交到统计一支付接口 [图片] 返回的结果是： code":"SIGN_ERROR","detail":{"detail":{"issue":"sign not match"},"field":"signature","location":"authorization","sign_information":{"method":"POST","sign_message_length":304,"truncated_sign_message":"POST\n/v3/pay/transactions/jsapi\n1618904990\nshghnn003\n{\"mchid\"\n","url":"/v3/pay/transactions/jsapi"}},"message":"错误的签名，验签失败" 提交到统一支付接口的方法： [图片] 不知那里出错了。文档里也没有找到答案。

技术文档中：签名生成 openssl_sign($message, $raw_sign, $mch_private_key,…… 请问$raw_sign, $mch_private_key这两个参数的值 是怎么生成出来的？

{ "code": "SIGN_ERROR", "detail": { "detail": { "issue": "sign not match" }, "field": "signature", "location": "authorization", "sign_information": { "method": "POST", "sign_message_length": 953, "truncated_sign_message": "POST\n/v3/vehicle/etc/preopen\n1569052402\n1569052402\n{\"sp_app\n", "url": "/v3/vehicle/etc/preopen" } }, "message": "错误的签名，验签失败" }