Question

我的json数据有json字符串（值），看起来像这样

{
     "Label" : "NY Home1",
     "Value" : "{\"state\":\"NY\",\"city\":\"NY\",\"postalCode\":\"22002\",\"value\":\"Fifth Avenue1\nNY NY 22002\nUSA\",\"iosIdentifier\":\"71395A78-604F-47BE-BC3C-7F932263D397\",\"street\":\"Fifth Avenue1\",\"country\":\"USA\"}",
}

我使用swiftyjson

获取jsonString

let value = sub["Value"].string ?? ""

之后我将此jsonString转换为Dictionary，使用以下代码，但它始终显示此错误消息The data couldn’t be read because it isn’t in the correct format

if let data = value.data(using: String.Encoding.utf8) {
        do {
            let a = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any]
            print("check \(a)")
        } catch {
            print("ERROR \(error.localizedDescription)")
        }
    }

我认为这是因为＆＃34; \ n＆＃34;，如何将jsonstring转换为具有＆＃34; \ n＆＃34; ？

Answer 1

你是对的，问题是因为＆＃34; \ n＆＃34;而发生的。我试过你的代码没有＆＃34; \ n＆＃34;它的工作非常完美。

我更换了＃34; \ n＆＃34;通过＆＃34; \\ n＆＃34;，iOS似乎将字符串转换为字典：

let value =  "{\"state\":\"NY\",\"city\":\"NY\",\"postalCode\":\"22002\",\"value\":\"Fifth Avenue1\nNY NY 22002\nUSA\",\"iosIdentifier\":\"71395A78-604F-47BE-BC3C-7F932263D397\",\"street\":\"Fifth Avenue1\",\"country\":\"USA\"}"

if let data = value.replacingOccurrences(of: "\n", with: "\\n").data(using: String.Encoding.utf8) {
    do {
       let a = try JSONSerialization.jsonObject(with: data, options: .mutableLeaves) as? [String: Any]
       NSLog("check \(a)")
    } catch {
       NSLog("ERROR \(error.localizedDescription)")
    }
}

我在日志中获得了这个：

check Optional(["value": Fifth Avenue1
NY NY 22002
USA, "country": USA, "city": NY, "iosIdentifier": 71395A78-604F-47BE-BC3C-7F932263D397, "street": Fifth Avenue1, "postalCode": 22002, "state": NY])

无法读取数据，因为格式不正确[swift 3]

1 个答案: