爲什麼SwifyJSON dictionaryValue爲空？

我正在使用SwifyJSON解析通過socket.io發送到我的iOS應用的一些JSON，並且.dictionaryValue的響應是nil。下面是如何將數據從服務器發送：爲什麼SwifyJSON dictionaryValue爲空？

socket.emit('hasBeenMatched', {user: JSON.stringify(currentUser)});

下面是我在iOS應用中已經得到了：

socket.on("hasBeenMatched", callback: {data, ack in 
     println("got response after requesting match"); 

     let user = JSON(data!) 
     println(user) 
     println(user[0]) 
     println(user[0]["user"]) 
     println(user[0]["user"].dictionaryValue) 

    })

及這裏的代碼的輸出：

got response after requesting match 
[ 
    { 
    "user" : "{\"_id\":\"5511c3d8abcdc2fcf7b8fe4b\",\"email\":\"j\",\"password\":null,\"firstname\":\"j\",\"lastname\":\"j\",\"age\":9,\"radius\":\"9\",\"__v\":0,\"wantsToBeMatched\":true,\"matchedWith\":\"k k\"}" 
    } 
] 
{ 
    "user" : "{\"_id\":\"5511c3d8abcdc2fcf7b8fe4b\",\"email\":\"j\",\"password\":null,\"firstname\":\"j\",\"lastname\":\"j\",\"age\":9,\"radius\":\"9\",\"__v\":0,\"wantsToBeMatched\":true,\"matchedWith\":\"k k\"}" 
} 
{"_id":"5511c3d8abcdc2fcf7b8fe4b","email":"j","password":null,"firstname":"j","lastname":"j","age":9,"radius":"9","__v":0,"wantsToBeMatched":true,"matchedWith":"k k"} 
[:]

在我的代碼的替代部分，我有以下代碼：

let request = Alamofire.request(.POST, "http://localhost:3000/api/users/authenticate", parameters: params) 
request.validate() 
request.response { [weak self] request, response, data, error in 
    if let strongSelf = self { 
     // Handle various error cases here.... 

     var serializationError: NSError? 

     if let json: AnyObject = NSJSONSerialization.JSONObjectWithData(data!, options: .AllowFragments, error: &serializationError) { 
      println(JSON(json).dictionaryValue) 

      // Story board navigation 
     } else { 
      //Handle error case 
     } 
    } 
}

編輯：println在Alamofire響應處理輸出的樣子：

[_id: 5511c3d8abcdc2fcf7b8fe4b, password: null, __v: 0, lastname: j, age: 9, wantsToBeMatched: true, firstname: j, radius: 9, email: j, matchedWith: k k]

我想知道的是：爲什麼println(user[0]["user"].dictionaryValue)結果[:]？

來源

2015-03-25 Paymahn Moghadasian

想通了，但我的解決方案是不相關的SwiftyJSON（我仍然很好奇）。我改變了我的服務器通過socket發送數據的方式。我將socket.emit('hasBeenMatched', {user: JSON.stringify(currentUser)});更改爲socket.emit('hasBeenMatched', {user: currentUser});。本質上，我刪除了手動JSON化。

來源

2015-03-25 01:43:34

爲什麼SwifyJSON dictionaryValue爲空？

回答

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