问题描述:tt.pay 签名问题
失败订单的unsigned_str:
alipay_url=app_id=2019000000000006&biz_content=xxxx&app_id=800000000001&body=测试订单¤cy=CNY&merchant_id=1900000001&out_order_no=201900000000000001&payment_type=direct&product_code=pay&sign_type=MD5&subject=测试订单×tamp=1571824188&total_amount=1&trade_time=1571824188&trade_type=H5&uid=0000000000000001&valid_time=300&version=2.0&wx_type=MWEB&wx_url=https://wx.tenpay.com/xxx
orderInfo:
{"alipay_url":"app_id=2019000000000006&biz_content=xxxx","app_id":"800000000001","body":"\u6d4b\u8bd5\u8ba2\u5355","currency":"CNY","merchant_id":"1900000001","out_order_no":"201900000000000001","payment_type":"direct","product_code":"pay","sign_type":"MD5","subject":"\u6d4b\u8bd5\u8ba2\u5355","timestamp":"1571824188","total_amount":1,"trade_time":"1571824188","trade_type":"H5","uid":"0000000000000001","valid_time":"300","version":"2.0","wx_type":"MWEB","wx_url":"https:\/\/wx.tenpay.com\/xxx","sign":"277716c09af99a3a73b0d001c20f9934"}