是什么导致500内部服务器错误，原因是在bot框架中命中了localhost:9000? [英] What's causing 500 Internal Server Error due to localhost:9000 being hit in bot framework?

问题描述

每次我尝试向机器人发送消息时，或者在它连续响应3条消息后，都会出现此错误.

Getting this error every time I try to send a message to my bot, or after it responds with 3 messages in a row.

我在正在获取异常(从对context.PostAsync的调用)的代码中放置try/catch，并将其记录在我的Application Insights实例中:

I put a try/catch around the code that's getting the exception (from a call to context.PostAsync) and got this logged in my Application Insights instance:

An error occurred while sending the request.
Unable to connect to the remote server
An attempt was made to access a socket in a way forbidden by its access permissions 127.0.0.1:9000

肯定地，我代码中没有任何内容击中localhost ...其他人看到了吗?

Certainly nothing in my code is hitting localhost... anybody else seeing this?

发生错误时正在运行的代码:

Code that's running when the error occurs:

var j = JToken.Parse(responseJson);
foreach (var b in j["value"])
{
    await context.PostAsync($"{b.Value<string>("id")} - {b.Value<string>("name")}");
}

当我在本地运行该bot并使用仿真器进行测试时，我得到3项输出，但在第4项中输出了500(这不是格式错误的，以致于json解析失败).

When I run the bot locally and use the Emulator to test I get 3 items output but 500 on the 4th (which isn't malformed in a way such that the json resolution is failing).

发布到Azure App Services时，出现500错误，没有任何输出.

When I publish out to Azure App Services, I get 500 error without any output.

推荐答案

我们的应用程序中存在类似的问题.通过在我们的对话框类中没有从LuisDialog派生的私有LuisResult属性来设法解决500个无效响应.

We were having a similar issue in our app. Managed to resolve the 500 Invalid responses by not having a private LuisResult property in our dialog class that derived from LuisDialog.

我猜是因为该类被标记为Serializable，所以它试图序列化所有属性，而LuisResult无法序列化.

I guess as the class was marked as Serializable it tried to serialize all the properties and a LuisResult can't be serialized.

这是一个代码段:

更改:

[Serializable]
public class YourDialog : LuisDialog<MySerializableClass>
{
    private LuisResult _myPrivateProp;
}

收件人:

[Serializable]
public class YourDialog : LuisDialog<MySerializableClass>
{
    private string _myPrivateProp;//or whatever
}

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