json - Swift - 解析数据错误 - Swift.DecodingError.dataCorrupted

Question

我将 SwiftSoup 与 Codable 结合使用来获取正确的元素并解析数据。但是，我收到此错误:

JSON decode failed: Swift.DecodingError.dataCorrupted(Swift.DecodingError.Context(codingPath: [], debugDescription: "The given data was not valid JSON.", underlyingError: Optional(Error Domain=NSCocoaErrorDomain Code=3840 "No value." UserInfo={NSDebugDescription=No value.})))

我在网上查看，确保我的数据正确匹配，甚至将预期类型从 Int 更改为 String 但得到一个错误，指出 Int 是预期的。
这是我正在接收的数据，可以在控制台中打印:

data - 
{"test":0,"ppace":85,"pshooting":92,"ppassing":91,"pdribbling":95,"pdefending":38,"pphysical":65,"acceleration":91,"sprintspeed":80,"agility":91,"balance":95,"reactions":94,"ballcontrol":96,"dribbling":96,"positioning":93,"finishing":95,"shotpower":86,"longshotsaccuracy":94,"volleys":88,"penalties":75,"interceptions":40,"headingaccuracy":70,"marking":32,"standingtackle":35,"slidingtackle":24,"vision":95,"crossing":85,"freekickaccuracy":94,"shortpassing":91,"longpassing":91,"curve":93,"jumping":68,"stamina":72,"strength":69,"aggression":44,"composure":96}

这是我的功能:

 func parseData() {
    do {
    let html = try String(contentsOf: url!, encoding: String.Encoding.ascii)
        let doc: Document = try! SwiftSoup.parse(html)
        let elements = try doc.getAllElements()
        for element in elements {
            switch element.id() {
            case "player_stats_json":
              
                let content = try! element.getElementsContainingText("ppace").text()
                print(content.utf8)
                let jsonData = content.data(using: .utf8)
                    do {
                        self.player = try JSONDecoder().decode(PlayerModel.self, from: Data(jsonData!))
                    } catch let jsonError as NSError {
                        print("JSON decode failed: \(jsonError)")
                        print("data - \(content)")
                    }
            default:
                break
            }
        }

    } catch Exception.Error(type: let type, Message: let message) {
        print(type)
        print(message)
    } catch {
        print("")
    }
    }

这是我的模型文件:

struct PlayerModel: Codable {
    var test: Int
    var ppace: Int
    var pshooting: Int
    var ppassing: Int
    var pdribbling: Int
    var pdefending: Int
    var pphysical: Int
    var acceleration: Int
    var sprintspeed: Int
    var agility: Int
    var balance: Int
    var reactions: Int
    var ballcontrol: Int
    var dribbling: Int
    var positioning: Int
    var finishing: Int
    var shotpower: Int
    var longshotsaccuracy: Int
    var volleys: Int
    var penalties: Int
    var interceptions: Int
    var headingaccuracy: Int
    var marking: Int
    var standingtackle: Int
    var slidingtackle: Int
    var vision: Int
    var crossing: Int
    var freekickaccuracy: Int
    var shortpassing: Int
    var longpassing: Int
    var curve: Int
    var jumping: Int
    var stamina: Int
    var strength: Int
    var aggression: Int
    var composure: Int
}

我已经两次和三次检查变量名称与每个键匹配。我已将控制台中输出的数据粘贴到在线 JSON 验证器中，并且没有出现错误。我现在正挠头，因为我不明白我哪里出错了。

Answer 1

我仍然不知道你的解析有什么问题。我已设法解析您的 html，但我不知道为什么在尝试使用 Int 而不是 Uint8 时，它始终无法返回正确的值。这对我有用:

import UIKit
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
struct PlayerModel: Codable {
    let test: UInt8
    let ppace: UInt8
    let pshooting: UInt8
    let ppassing: UInt8
    let pdribbling: UInt8
    let pdefending: UInt8
    let pphysical: UInt8
    let acceleration: UInt8
    let sprintspeed: UInt8
    let agility: UInt8
    let balance: UInt8
    let reactions: UInt8
    let ballcontrol: UInt8
    let dribbling: UInt8
    let positioning: UInt8
    let finishing: UInt8
    let shotpower: UInt8
    let longshotsaccuracy: UInt8
    let volleys: UInt8
    let penalties: UInt8
    let interceptions: UInt8
    let headingaccuracy: UInt8
    let marking: UInt8
    let standingtackle: UInt8
    let slidingtackle: UInt8
    let vision: UInt8
    let crossing: UInt8
    let freekickaccuracy: UInt8
    let shortpassing: UInt8
    let longpassing: UInt8
    let curve: UInt8
    let jumping: UInt8
    let stamina: UInt8
    let strength: UInt8
    let aggression: UInt8
    let composure: UInt8
}

let url = URL(string:"https://www.futbin.com/21/player/541/lionel-messi")!
URLSession.shared.dataTask(with: url) { data, response, error in
    guard let data = data, let html = String(data: data, encoding: .utf8) else { return }
    if let start = html.range(of: #"<div style="display: none;" id="player_stats_json">"#)?.upperBound,
       let end = html[start...].range(of: #"</div>"#)?.lowerBound {
        let json = html[start..<end]
        do {
            let player = try JSONDecoder().decode(PlayerModel.self, from: Data(json.utf8))
            print(player)
        } catch {
            print(error)
        }
    }
}.resume()

这将打印

PlayerModel(test: 0, ppace: 85, pshooting: 92, ppassing: 91,pdribbling: 95, pdefending: 38, pphysical: 65, acceleration: 91,sprintspeed: 80, agility: 91, balance: 95, reactions: 94, ballcontrol:96, dribbling: 96, positioning: 93, finishing: 95, shotpower: 86,longshotsaccuracy: 94, volleys: 88, penalties: 75, interceptions: 40,headingaccuracy: 70, marking: 32, standingtackle: 35, slidingtackle:24, vision: 95, crossing: 85, freekickaccuracy: 94, shortpassing: 91,longpassing: 91, curve: 93, jumping: 68, stamina: 72, strength: 69,aggression: 44, composure: 96)