如何解析 swift 中的 JSON 字符串？

Question

在我的 swift 应用程序中，我从服务器端获取 JSON 字符串，并使用以下方式存储它： let response = String(data: data,: encoding. .utf8)

该字符串包含字典数组。 它看起来像这样：

[{"class":"Math","classToken":"SSC000000zctal","teacherName":"Last, First","room":"001","grade":"A+"},{"class": "MUSIC","classToken":"SSC000000zcY2Y","teacherName":"Last,First","room":"002","grade":"A+"}]

有没有办法在我的 swift 代码中将其转换为实际的字典数组？

Answer 1

以下是如何解码您的回复：

typealias YourDecodedObject = [ClassObject]

struct ClassObject: Codable {
    let welcomeClass: String?
    let classToken: String?
    let teacherName: String?
    let room: String?
    let grade: String?
    
    enum CodingKeys: String, CodingKey {
        case welcomeClass = "class"
        case classToken, teacherName, room, grade
    }
}

func decodeResponseFrom(data: Data?) {
    if let data = data {
        do {
            let decodedObject = try JSONDecoder().decode(YourDecodedObject.self, from: data)
        } catch {
            print("could not decode ❌")
        }
    }
}