如何简化获取结果表单 json

Question

我想获取redirectUrl值。所以我写这样的代码。我认为太复杂了。可能还有其他方法可以得到？

var v interface{}
req.ToJSON(&v)
a := v.(map[string]interface{})
b := a["browserPayment"].(map[string]interface{})
logs.Info(b["redirectUrl"])

这是响应：

{"browserPayment":{"interaction":{"status":"INITIATED","timeInitiated":"xxxxxx"},"operation":"PAY","redirectUrl":"xxxxx","returnUrl":"http://localhost"},"gatewayEntryPoint":"xxxxx","merchant":"xxxxx","order":{"amount":1,"chargeback":{"amount":0,"currency":"USD"},"creationTime":"xxxxxx","currency":"USD","id":"xxxxxx","merchantAmount":1,"merchantCurrency":"USD","status":"INITIATED","totalAuthorizedAmount":0,"totalCapturedAmount":0,"totalRefundedAmount":0},"response":{"gatewayCode":"SUBMITTED"},"result":"SUCCESS","sourceOfFunds":{"type":"UNION_PAY"},"timeOfRecord":"xxxxxxx","transaction":{"acquirer":{"id":"xxxxxxx","merchantId":"xxxxx"},"amount":1,"currency":"USD","id":"xxxxx","source":"INTERNET","type":"PAYMENT"},"version":"56"}

Answer 1

声明一个类型与数据结构匹配的变量。取消封送该值：

var v struct { BrowserPayment struct { RedirectUrl string }}
req.ToJSON(&v)
logs.Info(v.BrowserPayment.RedirectUrl)

建议：检查并处理ToJSON返回的错误。