ios - 使用 JSONDecoder Swift 解码

Question

下面的json对应的数据模型是什么？

{ 
   dog:
   {
      type: "dog",
      logoLocation: "url1"
   },
   pitbull: 
   {
       type: "pitbull",
       logoLocation: "url2"
    }
}

这是字典的字典所以我尝试了，

class PhotosCollectionModel: Codable {
    var photoDictionary: Dictionary<String, PhotoModel>?
}

class PhotoModel: Codable {
    var type: String?
    var logoLocation: String?
}

但它不起作用。有什么帮助吗？

Answer 1

你需要

struct Root: Codable {
    let dog, pitbull: Dog
}

struct Dog: Codable {
    let type, logoLocation: String  // or let logoLocation:URL
}

---

正确的json

{
    "dog":
    {
        "type": "dog",
        "logoLocation": "url1"
    },
    "pitbull":
    {
        "type": "pitbull",
        "logoLocation": "url2"
    }
}

---

动态

只需在解码器中使用[String:Dog]

    do {

        let res  = try JSONDecoder().decode([String:Dog].self,from:data)
    }
    catch {

        print(error)
    }