小编LvN*_*LvN的帖子

我正在从服务器发送这个json响应,请求我的IOS 7应用程序.

{
 "root": {
    "success": "1",
    "message": "Successfully retrieved data.",
    "data": {
        "records": [
            {
                "receipt_key": "xxxxxxxx",
                "receipt_id": "xxxxxxxx",
                "store_name": "xxxxxx",
                "amount": "xxxx",
                "date_purchase": "xxxxxxxx",
                "is_processed": "x",
                "created_on": "xxxxxxxx",
                "modified_on": "xxxxxxxx",
                "modified_on_millis": "xxxxxxxx",
                "user_folder": "xxxxxxxx",
                "category_id": "xxxxxxxx",
                "is_deleted": "x",
                "currency_id": "xxxxxxxx"
            }
        ]
    }
}
}

我使用以下代码解析上面的json到NSDictionary对象.

 NSMutableDictionary *json=[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];

但是我在上面的代码中遇到了这个错误.

Error Domain = NSCocoaErrorDomain Code = 3840"操作无法完成.(Cocoa error 3840.)"(JSON文本不是以数组或对象开头,而是选项允许未设置片段.)UserInfo = 0x8a8a700 {NSDebugDescription = JSON text没有从数组或对象和选项开始,以允许未设置片段.}