我有3個QnA服務(wù)。我希望它們可以同時在單個BOT中使用。如何使用C＃來實現(xiàn)。我最初的想法是將KB ID和Sub Key放入數(shù)組中（如何實現(xiàn)該數(shù)組或數(shù)組是否起作用？）。我在Node.JS中看到了一些代碼，但無法弄清楚如何在C＃中轉(zhuǎn)換代碼。public class QnaDialog : QnAMakerDialog{ public QnaDialog() : base( new QnAMakerService(new QnAMakerAttribute(ConfigurationManager.AppSettings["QnaSubscriptionKey1"], ConfigurationManager.AppSettings["QnaKnowledgebaseId1"], "Hmm, I wasn't able to find an article about that. Can you try asking in a different way?", 0.5)), new QnAMakerService(new QnAMakerAttribute(ConfigurationManager.AppSettings["QnaSubscriptionKey2"], ConfigurationManager.AppSettings["QnaKnowledgebaseId2"], "Hmm, I wasn't able to find an article about that. Can you try asking in a different way?", 0.5)), new QnAMakerService(new QnAMakerAttribute(ConfigurationManager.AppSettings["QnaSubscriptionKey3"], ConfigurationManager.AppSettings["QnaKnowledgebaseId4"], "Hmm, I wasn't able to find an article about that. Can you try asking in a different way?", 0.5)) ) { }}
1 回答
慕桂英4014372
TA貢獻1871條經(jīng)驗 獲得超13個贊
QnAMaker通過在屬性中提供多種服務(wù)，您可以在單個bot中使用多種知識庫。
使用QnAMakerDialogNuget包的基本實現(xiàn)BotBuilder.CognitiveServices是：
[Serializable]
[QnAMaker("QnaSubscriptionKey1", "QnaKnowledgebaseId1", "Hmm, I wasn't able to find an article about that. Can you try asking in a different way?", 0.50, 3)]
[QnAMaker("QnaSubscriptionKey2", "QnaKnowledgebaseId2", "Hmm, I wasn't able to find an article about that. Can you try asking in a different way?", 0.5, 3)]
[QnAMaker("QnaSubscriptionKey3", "QnaKnowledgebaseId3", "Hmm, I wasn't able to find an article about that. Can you try asking in a different way?", 0.5, 3)]
public class RootDialog : QnAMakerDialog
{
}
但是（是的，有一個“但是”）在某些情況下，您在處理消息時可能會遇到異常。正如QnAMakerDialog開源的一樣（您可以在此處找到源代碼），您可以輕松地發(fā)現(xiàn)問題出在服務(wù)調(diào)用返回的實現(xiàn)中MessageReceivedAsync：
var sendDefaultMessageAndWait = true;
qnaMakerResults = tasks.FirstOrDefault(x => x.Result.ServiceCfg != null)?.Result;
if (tasks.Count(x => x.Result.Answers?.Count > 0) > 0)
{
var maxValue = tasks.Max(x => x.Result.Answers[0].Score);
qnaMakerResults = tasks.First(x => x.Result.Answers[0].Score == maxValue).Result;
if (qnaMakerResults != null && qnaMakerResults.Answers != null && qnaMakerResults.Answers.Count > 0)
{
if (this.IsConfidentAnswer(qnaMakerResults))
{
await this.RespondFromQnAMakerResultAsync(context, message, qnaMakerResults);
await this.DefaultWaitNextMessageAsync(context, message, qnaMakerResults);
}
else
{
feedbackRecord = new FeedbackRecord { UserId = message.From.Id, UserQuestion = message.Text };
await this.QnAFeedbackStepAsync(context, qnaMakerResults);
}
sendDefaultMessageAndWait = false;
}
}
if (sendDefaultMessageAndWait)
{
await context.PostAsync(qnaMakerResults.ServiceCfg.DefaultMessage);
await this.DefaultWaitNextMessageAsync(context, message, qnaMakerResults);
}
在此代碼中，如果并非所有服務(wù)都對您的問題有答案（例如：如果您的QnAMaker KB至少有一個沒有對您的問題的回答），則此行代碼將中斷。
tasks.Max(x => x.Result.Answers[0].Score);
解決方法：例如，您可以通過獲取源代碼并修復(fù)如下方法來實現(xiàn)自己的QnAMakerDialog：
public async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> argument)
{
var message = await argument;
if (message != null && !string.IsNullOrEmpty(message.Text))
{
var tasks = this.services.Select(s => s.QueryServiceAsync(message.Text)).ToArray();
await Task.WhenAll(tasks);
if (tasks.Any())
{
var sendDefaultMessageAndWait = true;
qnaMakerResults = tasks.FirstOrDefault(x => x.Result.ServiceCfg != null)?.Result;
var qnaMakerFoundResults = tasks.Where(x => x.Result.Answers.Any()).ToList();
if (qnaMakerFoundResults.Any())
{
var maxValue = qnaMakerFoundResults.Max(x => x.Result.Answers[0].Score);
qnaMakerResults = qnaMakerFoundResults.First(x => x.Result.Answers[0].Score == maxValue).Result;
if (qnaMakerResults?.Answers != null && qnaMakerResults.Answers.Count > 0)
{
if (this.IsConfidentAnswer(qnaMakerResults))
{
await this.RespondFromQnAMakerResultAsync(context, message, qnaMakerResults);
await this.DefaultWaitNextMessageAsync(context, message, qnaMakerResults);
}
else
{
feedbackRecord = new FeedbackRecord { UserId = message.From.Id, UserQuestion = message.Text };
await this.QnAFeedbackStepAsync(context, qnaMakerResults);
}
sendDefaultMessageAndWait = false;
}
}
if (sendDefaultMessageAndWait)
{
await context.PostAsync(qnaMakerResults.ServiceCfg.DefaultMessage);
await this.DefaultWaitNextMessageAsync(context, message, qnaMakerResults);
}
}
}
}
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