ios - Swift 5 Alamofire 字典解析错误

Question

我想在 Swift 5 中使用 Alamofire 解析 json，但我没有在下面的代码中获取数组。

我的json文件

[{"type":"success","data":[{"id":"1","sectionId":"1","title":"test title","detail":"detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text detail test text ","image":"test.jpg","view":"0","status":"1"}]}]

我的 swift 5 代码

if let json = response.result.value {
                    print(json)
                         if let dictionaryArray = json as? Dictionary<String, AnyObject?> {
                             print(dictionaryArray)
                             let json = dictionaryArray
                             if let type = json["type"] as? String,
                                let results = json["data"] as? Array<Dictionary<String, AnyObject?>> {
                                print(type)
                            for i in 0..<results.count{
                                    let json = results[i]
                                    if let id = json["id"] as? String, let jokeString = json["title"] as? String{
                                        self.items.append(Item(id: id, sectionId : "0", title: jokeString, detail:"", image: "", view : "0", status : "0"))
                                        print(json)

                                }
                            }
                        }
                    }
                }
        }

有什么想法吗？我哪里做错了？

Answer 1

根是一个数组，所以它的 [[String:Any]]

 if let dictionaryArray = json as? [[String:Any]] {

顺便说一句，最好使用 Codable

Alamofire.request(url, method: .get, parameters: [:], encoding: JSONEncoding.default, headers: [:]).responseData { res in
    guard let data = res.data else { return } 

      do {
         let res = try JSONDecoder().decode([Root].self, from:data)
         print(res)
      } 
      catch {
         print(error)
     }
}

---

struct Root: Codable {
    let type: String
    let data: [Datum]
}

// MARK: - Datum
struct Datum: Codable {
    let id, sectionID, title, detail: String
    let image, view, status: String

    enum CodingKeys: String, CodingKey {
        case id
        case sectionID = "sectionId"
        case title, detail, image, view, status
    }
}

编辑:

if let dictionaryArray = json as? [[String:Any?]] {
    for item in dictionaryArray {
        if let type = item["type"] as? String,let results = item["data"] as?  [[String:Any?]] {
            print(type)
            for json in results {
                 if let id = json["id"] as? String, let jokeString = json["title"] as? String {
                    self.items.append(Item(id: id, sectionId : "0", title: jokeString, detail:"", image: "", view : "0", status : "0"))
                    print(json)
                }
            }
        }
    }
}