_key_=salt,然后计算MD5作为参数传递,服务接收到请求后,用相同的逻辑计算MD5,然后匹配是否相等,_key_=xxx{
"attachments": [
{}
],
"exemptAmount": 0,
"otherOrgId": 0,
"otherOrgType": "BRANCH",
"paymentMethodCode": "string",
"realTradeAmount": 0.01,
"remark": "string",
"tradeMoney": 0.01,
"tradeTime": "2019-08-24T14:15:22Z"
}{}