按照支付宝文档生成的支付串alipay_url加上支付宝的网关（https://openapi.alipay.com/gateway.do）拼接的链接可以直接在手机浏览器打开并支付
但使用字节开放工具真机测试提示“系统繁忙,请稍后再试”。
报错截图或相关BUG

服务端返回的orderInfo信息:
orderInfo:

{
	"trade_time": "1605769183",
	"wx_type": "",
	"subject": "xxxx",
	"sign": "3610d9af6204660ce6b255f1b37804d2",
	"out_order_no": "JZ-ALIPAY160576918300015a",
	"wx_url": "",
	"merchant_id": "1900059201",
	"product_code": "pay",
	"notify_url": "https://www.toutiao.com",
	"body": "xxxx",
	"version": "2.0",
	"uid": "84367",
	"payment_type": "direct",
	"total_amount": "30000",
	"trade_type": "H5",
	"currency": "CNY",
	"risk_info": "{"ip":"59.49.201.78"}",
	"valid_time": "36000000",
	"app_id": "800592019759",
	"sign_type": "MD5",
	"alipay_url": "alipay_sdk=alipay-sdk-java-4.8.73.ALL&app_id=2021001191649534&biz_content={"out_trade_no":"JZ-ALIPAY160576918300015a","total_amount":"300","subject":"xxxxx","product_code":"QUICK_WAP_PAY"}&charset=utf-8&format=json&method=alipay.trade.wap.pay&notify_url=http://xxxxx/alipayReturnNotify&return_url=http://xxxxx.com&sign=Mr5ywRGMRnjwf6P9ElFagU0okKIHRN8zFz/41bz1jElLazUuM9ZJNeIHB8Vi8C0mFesD9gOxjrU9vWVReQQbpDDML/IRBoXsxcvnNKoITjoEz0vYETW6ijMGbiwUtogaoHYXAihfFaVPTvJ+4+8YLGBOPhssdh0rT2rbdeQPFSSifm1PxAROnofsof+SFpJMtNE9KL8ZPlsgoRwBqac3ZKp8inT8qUmW6WQFk4Ay6ddjvg/bxrOLfCSSoF1bEqj30UdPiNiSr5lCOyLeI7t1GXigUoG8yYeKOH0jsXUvwzfEAEKibjaW3PywDBLFkCHMlanRAW23ohzCdnPCOrtHMg==&sign_type=RSA2&timestamp=2020-11-19+14:59:43&version=1.0",
	"timestamp": "1605769183"
}

补充：点击”系统繁忙，请稍后再试“确定按钮后，会进入success回调，返回的res内容为：{code:4}

补充二：
用orderInfo里面的alipay_url加上支付宝的网关（https://openapi.alipay.com/gateway.do）拼接的链接可以直接在手机浏览器打开并支付

https://openapi.alipay.com/gateway.do?alipay_sdk=alipay-sdk-java-dynamicVersionNo&app_id=2021001191649534&biz_content=%7B%22body%22%3A%22321%22%2C%22out_trade_no%22%3A%22JS-ALIPAY1606098952000s17%22%2C%22product_code%22%3A%22QUICK_WAP_WAY%22%2C%22subject%22%3A%22123%22%2C%22total_amount%22%3A%22100%22%7D&charset=UTF-8&format=json&method=alipay.trade.wap.pay&notify_url=https%3A%2F%2Fuser.jizhisports.com%2Fapi%2FclientAccount%2FalipayReturnNotify%2F&return_url=https%3A%2F%2Fyc.ijuesheng.com%2F&sign=e42Ukvgn4nkcx2dL0%2Fn8zq4YLZ2LNmVexhk37v2a%2BAIAu%2BqYRvp8Ai1o16vmD%2BNeLzsBozFkbKDRal0aqSWm7VlVeJrAfUoJ8ASq8cHboopwtebRg155OKcNUAg61LlRsJitfpYB%2Bo7RSl%2B9zGrE2Nb0%2FyZB5hCNL1KfWxkKcI55%2FwX1JEb8MfZn0QuidJezbMq8DgF75So3z7yjdcWRFNoujya4lH2SChGFrt%2F7hyN8Xb8Ysc5W%2FUW8v6qK6aiM2zBAUMLELzLkNCFj3elGXniaDqiNxuAzdBVXIPPMEFdA9A00H2iSRK6oPpjlNHUcJi8RPdne5hJ6cRZDYIlmcA%3D%3D&sign_type=RSA2&timestamp=2020-11-23+10%3A35%3A52&version=1.0

复现步骤

• 第1步...
• 第2步...
• ...