当使用此代码从具有基本身份验证的服务器获取 JSON 时:
let config = URLSessionConfiguration.default
let userPasswordData = "\(username!):\(password!)".data(using: .utf8)
let base64EncodedCredential = userPasswordData!.base64EncodedString(options: Data.Base64EncodingOptions.init(rawValue: 0))
let authString = "Basic \(base64EncodedCredential)"
config.httpAdditionalHeaders = ["Authorization" : authString]
let session = URLSession(configuration: config)
let url = URL(string: "https://theforest.academy/api/v1/auth")
let task = session.dataTask(with: url!) {
(data, response, error) in
if (response as? HTTPURLResponse) != nil {
do {
if let data = data {
// let json1 = try JSONSerialization.jsonObject(with: data) as? [String: Any]
let json = try JSONSerialization.jsonObject(with: data, options: [], error: []) as? [String: Any]
if(json["valid"]) {
print(json["token"])
} else {
print("Invalid login")
}
}
} catch {
print("Error deserializing JSON: \(error)")
}
我收到以下错误
Cannot invoke 'jsonObject' with an argument list of type '(with: Data, options: [Any], error: [Any])'
最佳答案
查看 documentation , 看来你只有两个选择:
jsonObject(with: Data, options: JSONSerialization.ReadingOptions = [])
和
jsonObject(with: InputStream, options: JSONSerialization.ReadingOptions = [])
我认为您正在寻找第一种方法。也许你把它和
混淆了writeJSONObject(Any, to: OutputStream, options: JSONSerialization.WritingOptions = [], error: NSErrorPointer)
所以,简而言之,这样的方法是不存在的。这就是您收到错误的原因。
关于swift - 无法使用类型的参数列表调用 'jsonObject',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43983199/