ios - WS Websocket 是否能够在 Swift 中发送或接收 json 对象？

Question

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Invalid type in JSON write (_NSInlineData)'

let data = /* type of data */
let dic : NSDictionary = ["ID" : "UserName", "Data" : data]
let jsonData = try? JSONSerialization.data(withJSONObject: dic, options: [])
self!.socket.write(data: jsonData!)

Answer 1

根据您的数据创建一个字符串，然后您可以发送该字符串。

func jsonToString(json: AnyObject) -> String{
    do {
        let data1 =  try JSONSerialization.data(withJSONObject: json, options: JSONSerialization.WritingOptions.prettyPrinted)
        let convertedString = String(data: data1, encoding: String.Encoding.utf8)
        return convertedString!
    } catch let myJSONError {
        print(myJSONError)
        return ""
    }
}

您可以使用它:

let messageString = jsonToString(json: jsonData as AnyObject)
   socket.write(string: messageString)