Alamofire 打印请求给出 nil

Posted 2023-02-24

【中文标题】Alamofire 打印请求给出 nil

【英文标题】：Alamofire print request gives nil

【发布时间】：2018-04-26 21:57:35

【问题描述】：

您好，我尝试从请求中打印，但结果为零

Alamofire.request("http://.../api/v1.8/set/order/", method: .get, parameters: params)
        .responseString  response in
            switch response.result 
            case .success(let value):
                print("value\(value)")
                var json = JSON(value)
                let nass = json["description"].string
                print("nass\(nass)")
   

in cinsole 打印我

value  "result":"code":"15","description":"Invalid account email"
nass nil

【参考方案1】：

Alamofire.request("http://xincal.ru/api/v1.8/set/order/", method: .get, parameters: params).responseJSON  response in
     if let r = response.result.value as? NSDictionary
         if let result = r?.value(forKey: "result") as? NSDictionary 
             if let nass = result.value(forKey: "description") as? String 
                print(nass)
             
         
      else 
         print("Connection error")
     

但我们有更好的方法来使用 Codable 解析响应数据。

为响应准备模型

struct Result: Codable 
    let code: String
    let description: String


struct Response: Codable 
    let result: Result


Alamofire.request("http://xincal.ru/api/v1.8/set/order/", method: .get, parameters: params).responseJSON  response in
 if let data = response.data
     let object = try! JSONDecoder().decode(Response.self, from: jsonData)
      print(object.result.description)
  else 
     print("Connection error")