javascript - 机器人不会在 Direct line 中自行发送欢迎消息
问题描述
我使用 bot framework v4 c# 在本地创建了一个 bot。它有一张欢迎卡,当我将本地 url 与模拟器连接时,它会自动弹出,但最近我在 azure 上部署了我的机器人,并在我的网站中使用直线通道集成了它。现在,每当我单击时,它都会打开机器人,但欢迎卡不会自己出现,当我从聊天机器人写东西时它会出现。我只希望欢迎卡在模拟器中出现时自动显示。伙计们,你能帮帮我吗?以下是我在我的网站中集成的直线代码。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<!-- Paste line 7 to 27 after the title tag in _Layout.cshtml -->
<link href="https://cdn.botframework.com/botframework-webchat/latest/botchat.css" rel="stylesheet"
/>
<script src="https://cdn.botframework.com/botframework-webchat/latest/botchat.js"></script>
<style>
#mychat {
margin: 10px;
position: fixed;
bottom: 30px;
left: 10px;
z-index: 1000000;
}
.botIcon {
float: left !important;
border-radius: 50%;
}
.userIcon {
float: right !important;
border-radius: 50%;
}
</style>
</head>
< body>
<!-- Paste line from 31 to 33 before the </body> tag at the end of code -->
<div id="container">
<img id="mychat" src=""/>
</div>
</body>
<!-- Paste line 38 to 88 after the </html> tag -->
<script>
(function () {
var div = document.createElement("div");
var user = {
id: "",
name: ''
};
var bot = {
id: '',
name: 'SaathiBot'
};
const botConnection = new BotChat.DirectLine({
secret: '',
webSocket: false
})
document.getElementsByTagName('body')[0].appendChild(div);
div.outerHTML = "<div id='botDiv' style='width: 400px; height: 0px; margin:10px; position:
fixed; bottom: 0; left:0; z-index: 1000;><div id='botTitleBar' style='height: 40px; width: 400px;
位置:固定;光标:指针;'>";
BotChat.App({
botConnection: botConnection,
user: user,
bot: bot
}, document.getElementById("botDiv"));
document.getElementsByClassName("wc-header")[0].setAttribute("id", "chatbotheader");
document.querySelector('body').addEventListener('click', function (e) {
e.target.matches = e.target.matches || e.target.msMatchesSelector;
if (e.target.matches('#chatbotheader')) {
var botDiv = document.querySelector('#botDiv');
botDiv.style.height = "0px";
document.getElementById("mychat").style.display = "block";
};
});
document.getElementById("mychat").addEventListener("click", function (e) {
document.getElementById("botDiv").style.height = '500px';
e.target.style.display = "none";
})
}());
</script>
这也是我在 C# 中的欢迎卡代码
namespace Microsoft.BotBuilderSamples
{
public class WelcomeUser : SaathiDialogBot<MainDialog>
{
protected readonly string[] _cards =
{
Path.Combine(".", "Resources", "WelcomeCard.json"),
};
public WelcomeUser(ConversationState conversationState, UserState userState, MainDialog dialog, ILogger<SaathiDialogBot<MainDialog>> logger)
: base(conversationState, userState, dialog, logger)
{
}
protected override async Task OnMembersAddedAsync(IList<ChannelAccount> membersAdded, ITurnContext<IConversationUpdateActivity> turnContext, CancellationToken cancellationToken)
{
await SendWelcomeMessageAsync(turnContext, cancellationToken);
Random r = new Random();
var cardAttachment = CreateAdaptiveCardAttachment(_cards[r.Next(_cards.Length)]);
await turnContext.SendActivityAsync(MessageFactory.Attachment(cardAttachment), cancellationToken);
}
private static async Task SendWelcomeMessageAsync(ITurnContext turnContext, CancellationToken cancellationToken)
{
foreach (var member in turnContext.Activity.MembersAdded)
{
if (member.Id != turnContext.Activity.Recipient.Id)
{
if (DateTime.Now.Hour < 12)
{
await turnContext.SendActivityAsync(
$"Hi,Good Morning {member.Name}",
cancellationToken: cancellationToken);
}
else if (DateTime.Now.Hour < 17)
{
await turnContext.SendActivityAsync(
$"Hi,Good Afternoon {member.Name}",
cancellationToken: cancellationToken);
}
else
{
await turnContext.SendActivityAsync(
$"Hi,Good Evening {member.Name}",
cancellationToken: cancellationToken);
}
}
}
}
private static Attachment CreateAdaptiveCardAttachment(string filePath)
{
var adaptiveCardJson = File.ReadAllText(filePath);
var adaptiveCardAttachment = new Attachment()
{
ContentType = "application/vnd.microsoft.card.adaptive",
Content = JsonConvert.DeserializeObject(adaptiveCardJson),
};
return adaptiveCardAttachment;
}
}
}
这里是欢迎卡中继承的 saathiDialog 代码。这是我的 bot 文件夹中的两个文件
namespace Microsoft.BotBuilderSamples
{
public class SaathiDialogBot<T> : ActivityHandler where T : Dialog
{
protected readonly BotState ConversationState;
protected readonly Dialog Dialog;
protected readonly ILogger Logger;
protected readonly BotState UserState;
private DialogSet Dialogs { get; set; }
public SaathiDialogBot(ConversationState conversationState, UserState userState, T dialog, ILogger<SaathiDialogBot<T>> logger)
{
ConversationState = conversationState;
UserState = userState;
Dialog = dialog;
Logger = logger;
}
public override async Task OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken = default(CancellationToken))
{
var activity = turnContext.Activity;
if (string.IsNullOrWhiteSpace(activity.Text) && activity.Value != null)
{
activity.Text = JsonConvert.SerializeObject(activity.Value);
}
if (turnContext.Activity.Text == "Yes")
{
await turnContext.SendActivityAsync($"Good bye. I will be here if you need me. ", cancellationToken: cancellationToken);
await turnContext.SendActivityAsync($"Say Hi to wake me up.", cancellationToken: cancellationToken);
}
else
{
await base.OnTurnAsync(turnContext, cancellationToken);
}
await ConversationState.SaveChangesAsync(turnContext, false, cancellationToken);
await UserState.SaveChangesAsync(turnContext, false, cancellationToken);
}
protected override async Task OnMessageActivityAsync(ITurnContext<IMessageActivity> turnContext, CancellationToken cancellationToken)
{
Logger.LogInformation("Running dialog with Message Activity.");
await Dialog.RunAsync(turnContext, ConversationState.CreateProperty<DialogState>(nameof(DialogState)), cancellationToken);
}
}
}
解决方案
如果您使用的是 WebChat 或 directline,则在创建对话时发送 bot 的 ConversationUpdate,而在首次发送消息时发送用户方的 ConversationUpdate。最初发送 ConversationUpdate 时,消息中没有足够的信息来构建对话堆栈。这似乎在模拟器中起作用的原因是模拟器模拟了一种伪 DirectLine,但两个会话更新在模拟器中同时解析,而实际服务的执行方式并非如此。
一种解决方法是在建立 DirectLine 连接时向机器人发送反向通道欢迎事件,并从 onEventAsync 处理程序而不是 onMembersAdded 发送欢迎消息。
- 用于网络聊天的嵌入式 HTML
<!DOCTYPE html>
<html>
<head>
<script src="https://cdn.botframework.com/botframework-webchat/latest/webchat.js"></script>
<style>
#webchat {
height: 100%;
width: 100%;
}
</style>
</head>
<body>
<div style="display: flex">
<div style="position: relative; height: 500px; width: 500px"><div id="bot" ></div></div>
</div>
<script>
(async function() {
const res = await fetch('/directline/token', { method: 'POST' });
const { token } = await res.json();
var userinfo = {
id: 'user-id',
name: 'user name',
locale: 'es'
};
var botConnection = new window.BotChat.DirectLine({ token });
botConnection.connectionStatus$
.subscribe(connectionStatus => {
switch(connectionStatus) {
case window.BotChat.ConnectionStatus.Online:
botConnection.postActivity({
from: { id: 'myUserId', name: 'myUserName' },
type: 'event',
name: 'webchat/join',
value: { locale: 'en-US' }
}).subscribe(
id => console.log("Posted welcome event, assigned ID ", id),
error => console.log("Error posting activity", error)
);
break;
}
});
BotChat.App({
botConnection: botConnection,
user: userinfo,
bot: { id: 'botid' },
resize: 'detect'
}, document.getElementById("bot"));
})().catch(err => console.log(err));
</script>
</body>
</html>
- C# 中的机器人代码
protected override async Task OnEventActivityAsync(ITurnContext<IEventActivity> turnContext, CancellationToken cancellationToken)
{
if (turnContext.Activity.Name == "webchat/join") {
await turnContext.SendActivityAsync("Welcome Message!");
}
}
protected override async Task OnMembersAddedAsync(IList<ChannelAccount> membersAdded, ITurnContext<IConversationUpdateActivity> turnContext, CancellationToken cancellationToken)
{
if (turnContext.Activity.ChannelId != "webchat" && turnContext.Activity.ChannelId != "directline") {
foreach (var member in membersAdded)
{
if (member.Id != turnContext.Activity.Recipient.Id)
{
await turnContext.SendActivityAsync($"Hi there - {member.Name}. {WelcomeMessage}", cancellationToken: cancellationToken);
await turnContext.SendActivityAsync(InfoMessage, cancellationToken: cancellationToken);
await turnContext.SendActivityAsync(PatternMessage, cancellationToken: cancellationToken);
}
}
}
}
希望这可以帮助。
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