类型“PersonInfo”不符合协议“可解码”[重复]答案

【问题标题】：Type 'PersonInfo' does not conform to protocol 'Decodable' [duplicate]类型“PersonInfo”不符合协议“可解码”[重复]
【发布时间】：2021-03-03 18:48:51
【问题描述】：

您好，我是 swift 新手，我正在尝试执行获取请求，但是我编写的代码一直说 Type 'PersonInfo' 不符合协议 'Decodable'，我不确定我应该如何解决这个问题问题，我正在使用 alamofire 在我的代码中执行网络请求以执行此任务。

方法

 func getStarWarsPerson(){
    AF.request("https://swapi.dev/api/people").response { response in
            do {
                guard let data = response.data else { return }
                
                let decoder =  JSONDecoder()
                decoder.keyDecodingStrategy = .convertFromSnakeCase
                let person = try  decoder.decode(Person.self, from: data)
                print(person)
            } catch let jsonError {
                print(jsonError)
             }
        }
    }

API

{
"count": 82,
"next": "http://swapi.dev/api/people/?page=2",
"previous": null,
"results": [
    {
        "name": "Luke Skywalker",
        "height": "172",
        "mass": "77",
        "hair_color": "blond",
        "skin_color": "fair",
        "eye_color": "blue",
        "birth_year": "19BBY",
        "gender": "male",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/2/",
            "http://swapi.dev/api/films/3/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [],
        "vehicles": [
            "http://swapi.dev/api/vehicles/14/",
            "http://swapi.dev/api/vehicles/30/"
        ],
        "starships": [
            "http://swapi.dev/api/starships/12/",
            "http://swapi.dev/api/starships/22/"
        ],
        "created": "2014-12-09T13:50:51.644000Z",
        "edited": "2014-12-20T21:17:56.891000Z",
        "url": "http://swapi.dev/api/people/1/"
    },
    {
        "name": "C-3PO",
        "height": "167",
        "mass": "75",
        "hair_color": "n/a",
        "skin_color": "gold",
        "eye_color": "yellow",
        "birth_year": "112BBY",
        "gender": "n/a",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/2/",
            "http://swapi.dev/api/films/3/",
            "http://swapi.dev/api/films/4/",
            "http://swapi.dev/api/films/5/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [
            "http://swapi.dev/api/species/2/"
        ],
        "vehicles": [],
        "starships": [],
        "created": "2014-12-10T15:10:51.357000Z",
        "edited": "2014-12-20T21:17:50.309000Z",
        "url": "http://swapi.dev/api/people/2/"
    },
    {
        "name": "R2-D2",
        "height": "96",
        "mass": "32",
        "hair_color": "n/a",
        "skin_color": "white, blue",
        "eye_color": "red",
        "birth_year": "33BBY",
        "gender": "n/a",
        "homeworld": "http://swapi.dev/api/planets/8/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/2/",
            "http://swapi.dev/api/films/3/",
            "http://swapi.dev/api/films/4/",
            "http://swapi.dev/api/films/5/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [
            "http://swapi.dev/api/species/2/"
        ],
        "vehicles": [],
        "starships": [],
        "created": "2014-12-10T15:11:50.376000Z",
        "edited": "2014-12-20T21:17:50.311000Z",
        "url": "http://swapi.dev/api/people/3/"
    },
    {
        "name": "Darth Vader",
        "height": "202",
        "mass": "136",
        "hair_color": "none",
        "skin_color": "white",
        "eye_color": "yellow",
        "birth_year": "41.9BBY",
        "gender": "male",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/2/",
            "http://swapi.dev/api/films/3/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [],
        "vehicles": [],
        "starships": [
            "http://swapi.dev/api/starships/13/"
        ],
        "created": "2014-12-10T15:18:20.704000Z",
        "edited": "2014-12-20T21:17:50.313000Z",
        "url": "http://swapi.dev/api/people/4/"
    },
    {
        "name": "Leia Organa",
        "height": "150",
        "mass": "49",
        "hair_color": "brown",
        "skin_color": "light",
        "eye_color": "brown",
        "birth_year": "19BBY",
        "gender": "female",
        "homeworld": "http://swapi.dev/api/planets/2/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/2/",
            "http://swapi.dev/api/films/3/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [],
        "vehicles": [
            "http://swapi.dev/api/vehicles/30/"
        ],
        "starships": [],
        "created": "2014-12-10T15:20:09.791000Z",
        "edited": "2014-12-20T21:17:50.315000Z",
        "url": "http://swapi.dev/api/people/5/"
    },
    {
        "name": "Owen Lars",
        "height": "178",
        "mass": "120",
        "hair_color": "brown, grey",
        "skin_color": "light",
        "eye_color": "blue",
        "birth_year": "52BBY",
        "gender": "male",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/5/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [],
        "vehicles": [],
        "starships": [],
        "created": "2014-12-10T15:52:14.024000Z",
        "edited": "2014-12-20T21:17:50.317000Z",
        "url": "http://swapi.dev/api/people/6/"
    },
    {
        "name": "Beru Whitesun lars",
        "height": "165",
        "mass": "75",
        "hair_color": "brown",
        "skin_color": "light",
        "eye_color": "blue",
        "birth_year": "47BBY",
        "gender": "female",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/5/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [],
        "vehicles": [],
        "starships": [],
        "created": "2014-12-10T15:53:41.121000Z",
        "edited": "2014-12-20T21:17:50.319000Z",
        "url": "http://swapi.dev/api/people/7/"
    },
    {
        "name": "R5-D4",
        "height": "97",
        "mass": "32",
        "hair_color": "n/a",
        "skin_color": "white, red",
        "eye_color": "red",
        "birth_year": "unknown",
        "gender": "n/a",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/"
        ],
        "species": [
            "http://swapi.dev/api/species/2/"
        ],
        "vehicles": [],
        "starships": [],
        "created": "2014-12-10T15:57:50.959000Z",
        "edited": "2014-12-20T21:17:50.321000Z",
        "url": "http://swapi.dev/api/people/8/"
    },
    {
        "name": "Biggs Darklighter",
        "height": "183",
        "mass": "84",
        "hair_color": "black",
        "skin_color": "light",
        "eye_color": "brown",
        "birth_year": "24BBY",
        "gender": "male",
        "homeworld": "http://swapi.dev/api/planets/1/",
        "films": [
            "http://swapi.dev/api/films/1/"
        ],
        "species": [],
        "vehicles": [],
        "starships": [
            "http://swapi.dev/api/starships/12/"
        ],
        "created": "2014-12-10T15:59:50.509000Z",
        "edited": "2014-12-20T21:17:50.323000Z",
        "url": "http://swapi.dev/api/people/9/"
    },
    {
        "name": "Obi-Wan Kenobi",
        "height": "182",
        "mass": "77",
        "hair_color": "auburn, white",
        "skin_color": "fair",
        "eye_color": "blue-gray",
        "birth_year": "57BBY",
        "gender": "male",
        "homeworld": "http://swapi.dev/api/planets/20/",
        "films": [
            "http://swapi.dev/api/films/1/",
            "http://swapi.dev/api/films/2/",
            "http://swapi.dev/api/films/3/",
            "http://swapi.dev/api/films/4/",
            "http://swapi.dev/api/films/5/",
            "http://swapi.dev/api/films/6/"
        ],
        "species": [],
        "vehicles": [
            "http://swapi.dev/api/vehicles/38/"
        ],
        "starships": [
            "http://swapi.dev/api/starships/48/",
            "http://swapi.dev/api/starships/59/",
            "http://swapi.dev/api/starships/64/",
            "http://swapi.dev/api/starships/65/",
            "http://swapi.dev/api/starships/74/"
        ],
        "created": "2014-12-10T16:16:29.192000Z",
        "edited": "2014-12-20T21:17:50.325000Z",
        "url": "http://swapi.dev/api/people/10/"
    }
]

}

struct

【问题讨论】：

但是您可以使用keyDecodingStragegy 来避免所有这些，因为它是snake_case 与camelCase：developer.apple.com/documentation/foundation/jsondecoder/…

标签： swift

【解决方案1】：

只需确保您为每个属性提供了 codingKeys 案例。您丢失的案例：姓名高度大量的性别

【讨论】：

【解决方案2】：

使用站点/应用程序https://quicktype.io/根据JSON生成结构。它会在那里自动生成结构体，不会忘记任何属性。

【讨论】：