AFNetworking POST錯誤3840

當我嘗試將一些數據發佈到服務器時，我遇到服務錯誤。我相信這個錯誤與我的請求結構有關。我正在使用AFNetworking和我的請求看起來如下：AFNetworking POST錯誤3840

 lazy var networkManager: AFHTTPRequestOperationManager = { 

      var networkManager : AFHTTPRequestOperationManager = AFHTTPRequestOperationManager() 
      networkManager.requestSerializer.setValue("application/json", 
       forHTTPHeaderField: "Content-Type") 


      networkManager.responseSerializer.acceptableContentTypes = 
       NSSet(array: ["text/plain", "text/html", "application/json"]) as Set<NSObject> 



      return networkManager 
      }() 

func createNewAccount(username:String, password:String, onCompletion:Closures.ServiceResponse) -> Void{ 

     let parameters: [String: AnyObject] = [ 
      "newUser": [ 
       "name": username, 
       "password": password 
      ] 
     ] 



     var err : NSError? 
     var jsonData = NSJSONSerialization.dataWithJSONObject(parameters, options: nil, error: &err) 
     var jsonString = NSString(data: jsonData!, encoding: NSUTF8StringEncoding) 


     networkManager.POST(Constants.STAGING_URL + "/Services/UserService/UserService.svc/NewUserSignup", 
     parameters: jsonString, 
     success: { (operation: AFHTTPRequestOperation!,responseObject: AnyObject!) in 
      println(responseObject) 
     }, 
     failure: { (operation: AFHTTPRequestOperation!,error: NSError!) in 
      println(error.localizedDescription) 
      println(operation.responseString) 
     }) 
    }

我試過參數選項的變化，我仍遇到同樣的問題。

現在，這裏是我的手的作品就好了，並將數據發送到服務器寫成預期的方法：

func signupNewUser(userName : String, password : String){ 

     let jsonObject: [String: AnyObject] = [ 
      "newUser": [ 
       "name": userName, 
       "password": password 
      ] 
     ] 

     var urlString = Constants.STAGING_URL + "/Services/UserService/UserService.svc/NewUserSignup" 

     var request = NSMutableURLRequest(URL: NSURL(string: urlString)!) 
     var session = NSURLSession.sharedSession() 
     request.HTTPMethod = "POST" 

     var err: NSError? 
     request.HTTPBody = NSJSONSerialization.dataWithJSONObject(jsonObject, options: nil, error: &err) 
     request.addValue("application/json", forHTTPHeaderField: "Content-Type") 
     request.addValue("application/json", forHTTPHeaderField: "Accept") 

     var jsonData = NSJSONSerialization.dataWithJSONObject(jsonObject, options: nil, error: &err) 

     var jsonString = NSString(data: jsonData!, encoding: NSUTF8StringEncoding) 

     request.setValue(jsonString! as String, forHTTPHeaderField: "json") 

     var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in 
      println(response) 
     }) 

     task.resume() 

    }

上述要求工作得很好，並且服務器可以處理傳入的JSON和保存它在數據庫中成功。

我的服務器是一個WCF服務。該方法的接口我打電話看起來像這樣：

[OperationContract] 
     [WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest, ResponseFormat = WebMessageFormat.Json, UriTemplate = "/NewUserSignup")] 
     Response AddNewUser(User newUser);

實際NSError是：

Printing description of error: 
Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x7f98a0c58910 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set., NSUnderlyingError=0x7f98a0c582f0 "Request failed: bad request (400)"}

我假定服務器是好的，它只是具有與正確配置的要求做AFNetworking。任何幫助正確配置請求將不勝感激。

來源

2015-06-21 zic10

解決方案在我的情況很簡單，並與NetworkManager的配置有關。

這爲我工作作爲網絡管理器會從服務器上接收JSON：

lazy var networkManager: AFHTTPRequestOperationManager = { 

     var networkManager : AFHTTPRequestOperationManager = AFHTTPRequestOperationManager() 

     var jsonRequestSerializer = AFJSONRequestSerializer() 

     networkManager.requestSerializer = jsonRequestSerializer 

     return networkManager 
     }()

來源

2015-06-21 23:46:27 zic10

AFNetworking POST錯誤3840

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