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我正在開發一個項目，下面是我的Swift代碼。但是當我運行時，我得到這個錯誤。錯誤域= NSCocoaErrorDomain代碼= 3840「JSON文本沒有以數組或對象和選項啓動，以允許片段未設置。」在Swift 3中
Error Domain=NSCocoaErrorDomain Code=3840 "JSON text did not start with array or object and option to allow fragments not set." UserInfo={NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.}
我也檢查從數據庫的響應它說，它有一個有效的內容長度。但由於這個錯誤，我無法得到我想要的東西。
從我的代碼中的響應打印;
Optional(<NSHTTPURLResponse: 0x608000233bc0> { URL: http://192.168.1.99/insertData.php } { status code: 200, headers {
Connection = "Keep-Alive";
"Content-Length" = 10;
"Content-Type" = "text/html; charset=UTF-8";
Date = "Wed, 13 Sep 2017 21:37:38 GMT";
"Keep-Alive" = "timeout=5, max=100";
Server = "Apache/2.4.10 (Raspbian)";
} })`
這是我的代碼。
let urlOfSMARTCF = URL(string: "http://192.168.1.99/insertData.php")
let request = NSMutableURLRequest(url: urlOfSMARTCF! as URL) request.httpMethod="POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
for contact in contactsCaptuure
{
let userMobileNumber = DBManager.shared.retriveRegisteredNumberOfMobile()
let postParameters = "\"usermobilenum\":\(String(describing: userMobileNumber!)),\"contactnum\":\(contact.phoneNumber!)";
request.httpBody = postParameters.data(using: String.Encoding.utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest)
{
data, response, error in
if error != nil
{
print("error is \(String(describing: error))")
return;
}
do
{
print(response)
let myJSON = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
if let parseJSON = myJSON
{
var msg : String!
msg = parseJSON["message"] as! String?
print(msg)
}
}
catch
{
print(error.localizedDescription)
print(error)
}
}
print("Done")
task.resume()
}
因此，要完成我的項目，我需要解決此問題。請幫助。謝謝。