Question

我写了一个非常简单的C＃应用程序，用于在Windows机器之间发送推文。为此，每个端点（即使用TweetSharp库的此C＃.NET桌面应用程序）都有一个计时器，当Elapsed事件触发时，所有消息都与GetDirectMessages（）调用一起收集，然后这些消息将被解析和处理终点。

我的问题是，我在两周前的几个小时内制作了这个，一切正常。我把它掸掉并在一周前执行，没问题。现在，我今天将其分解出来，并且我得到一个非常奇怪的异常（参见EXCEPTION部分），该异常来自“IEnumerable directMessage = service.ListDirectMessagesReceived（）;”行。（参见SOURCE部分）。我的问题是，由于我的代码没有改变，API是否有可能（我知道我非常不可能）。 StackO的任何正直和博学的成员都有任何想法吗？

顺便说一句，我已经检查过，我的ConsumerKey / Secret是有效的，我的身份验证部分使用的缓存OAuth访问令牌也是如此。这很奇怪，因为我可以提取我的关注者列表，查看我的限速统计数据等。此外，我的NewtonSoft，Hammoch和TweetSharp参考文献尚未更新/更改。

感谢。

[SOURCE]

    private struct message
    {
        public long id;
        public string text;

        public message(long i, string t)
        {
            id = i;
            text = t;
        }
    }    

    private MessageEngine
    {
        /* Do auth -- excised for obvious reasons */

        Timer timer = new Timer();
        timer.Interval = 15000;
        timer.Tick += new EventHandler(timer_Tick);
        timer.Start();
    }    

    private List<message> GetDirectMessages()
    {
        try
        {
            //Declarations:
            message message = new message();
            List<message> messages = new List<message>();
/*line 344*/IEnumerable<TwitterDirectMessage> directMessages = service.ListDirectMessagesReceived();

            //Fetch all current direct message:
            foreach (TwitterDirectMessage directMessage in directMessages)
            {
                //Store each message into a list, in reverse older:
                message = new message(directMessage.Id, directMessage.Text);
                messages.Insert(0, message);
            }

            return messages;
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
            return null;
        }
    }

    private void timer_Tick(object sender, EventArgs e)
    {
        try
        {
            List<message> messages = GetDirectMessages();
            LocalExecute(messages);
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
    }

    private bool LocalExecute(List<message> messages)
    {
        /* process messages */
    }

[例外]

Newtonsoft.Json.JsonSerializationException: Cannot deserialize JSON array into type 'TweetSharp.TwitterDirectMessage'.
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureArrayContract(Type objectType, JsonContract contract) in d:\Development\Releases\Json\Working\Src\Newtonsoft.Json\Serialization\JsonSerializerInternalReader.cs:line 412
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String reference) in d:\Development\Releases\Json\Working\Src\Newtonsoft.Json\Serialization\JsonSerializerInternalReader.cs:line 432
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue) in d:\Development\Releases\Json\Working\Src\Newtonsoft.Json\Serialization\JsonSerializerInternalReader.cs:line 222
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueNonProperty(JsonReader reader, Type objectType, JsonContract contract) in d:\Development\Releases\Json\Working\Src\Newtonsoft.Json\Serialization\JsonSerializerInternalReader.cs:line 205
   at TweetSharp.Serialization.SerializerBase.DeserializeJson(String content, Type type) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Serialization\SerializerBase.cs:line 60
   at TweetSharp.Serialization.JsonSerializer.AddDeserializedItem(String c, Type type, IList collection) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Serialization\JsonSerializer.cs:line 131
   at TweetSharp.Serialization.JsonSerializer.DeserializeCollection[T](String content) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Serialization\JsonSerializer.cs:line 90
   at TweetSharp.Serialization.JsonSerializer.Deserialize[T](String content) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Serialization\JsonSerializer.cs:line 17
   at Hammock.RestClient.DeserializeEntityBody[T](RestBase request, RestResponse`1 response) in C:\Users\Dimebrain\Desktop\Src\hammock\src\net35\Hammock\RestClient.cs:line 2285
   at Hammock.RestClient.BuildResponseFromResult[T](RestBase request, WebQuery query) in C:\Users\Dimebrain\Desktop\Src\hammock\src\net35\Hammock\RestClient.cs:line 2212
   at Hammock.RestClient.Request[T](RestRequest request) in C:\Users\Dimebrain\Desktop\Src\hammock\src\net35\Hammock\RestClient.cs:line 107
   at TweetSharp.TwitterService.WithHammockImpl[T](RestRequest request) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Service\TwitterService.cs:line 401
   at TweetSharp.TwitterService.WithHammock[T](String path) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Service\TwitterService.cs:line 378
   at TweetSharp.TwitterService.WithHammock[T](String path, Object[] segments) in C:\Users\Dimebrain\Desktop\Src\tweetsharp\src\vs2010\TweetSharp.Next\Service\TwitterService.cs:line 383
   at TweetSharp_Test.Form1.GetDirectMessages() in C:\Users\kmarks2\Documents\Visual Studio 2008\Projects\TweetSharp_Test\TweetSharp_Test\Form1.cs:line 344

Answer 1

正如我从堆栈跟踪中看到的那样，TweetSharp.TwitterDirectMessage类模式与反序列化程序所期望的不同，可能是从上次检查时传递的Json数据发生了变化。

另外我认为Tweetsharp有一些与此相关的问题。

当我在codeplex上检查更改集时，使用流畅的方法更改了使用ID修复直接消息。

请在此处查看。

http://tweetsharp.codeplex.com/SourceControl/changeset/changes/8bf46a5230bc

尝试下载新的TweetSharp v2.0.0.0 - Preview 9

最近对Twitter API的修改？

1 个答案: