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ios - Swift 5 Alamofire 字典解析错误

问题描述

我想在 Swift 5 中用 Alamofire 解析 json，但我没有得到下面的代码。

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)

                                }
                            }
                        }
                    }
                }
        }

任何想法？我在哪里犯了错误？

标签： iosarraysswiftalamofireswift5

解决方案

根是一个数组，所以它的[[String:Any]] 

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

顺便说一句，它更好用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)
                }
            }
        }
    }
}

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