ios - Error Domain=NSCocoaErrorDomain Code=3840 在Swift5中解析JsonString时

Question

我收到一条推送消息。好像是jsonString。

但这并没有改成jsonArray。有什么问题？

AppDelegate.swift

        guard
            let aps = data[AnyHashable("aps")] as? NSDictionary,
            let alert = aps["alert"] as? NSDictionary,
            let body = alert["body"] as? String
            else {
                Log.Error("it's not good data")
                return
        }
        let jsonStringData : Data = body.data(using: .utf8)!
        Log.Info(jsonStringData)
        do {
            let jsonArray = try JSONSerialization.jsonObject(with: jsonStringData, options : .allowFragments) as? [Dictionary<String,Any>]

                Log.Info(jsonArray) // use the json here

        } catch let error as NSError {
            Log.Error(error)
        }

正文值(字符串)

{ 
    notification : {

                            "title" : "test title.",  

                            "body" : "test context."            

                      },

     data : {

                    "image" : "http://11.111.111.111:100000000/_img/sample_01.jpg",  

                    "page_url" : "http://11.111.111.111:100000000/test?address=",   

                    "type" : "test"       

             }
}

body的日志是这样的，JSON形式。但这不是翻译的。我不知道我错过了什么。

**错误是:**

Error Domain=NSCocoaErrorDomain Code=3840 "No string key for value in object around character 7." UserInfo={NSDebugDescription=No string key for value in object around character 7.}

Answer 1

感谢@vadian、@Larme、@Sh_Khan 和@Kamran

如您所说，JSON 无效。这应该由 JSON 接收。正如@Larme 所说，我不需要选项，我不需要设置as。它反而向我显示了一个警告。

成功了

        guard
            let aps = data[AnyHashable("aps")] as? NSDictionary,
            let alert = aps["alert"] as? NSDictionary,
            let body = alert["body"] as? String
            else {
                Log.Error("it's not good data")
                return
        }
        let jsonStringData : Data = body.data(using: .utf8)!
        Log.Info(jsonStringData)
        do {
            let json = try JSONSerialization.jsonObject(with: jsonStringData, options: [])

                Log.Info(json) // use the json here
                guard let jsonArray = json as? [String: Any] else {
                    return
                }
                Log.Debug(jsonArray)
                Log.Debug(jsonArray["data"])

        } catch let error as NSError {
            Log.Error(error)
        }