Skype mentions showing "未知用户"

[chenjunhua8080]

Version

      <dependency>
        <groupId>com.microsoft.bot</groupId>
        <artifactId>bot-integration-spring</artifactId>
        <version>4.14.1</version>
        <scope>compile</scope>
      </dependency>

Code

@Override
    protected CompletableFuture<Void> onMessageActivity(TurnContext turnContext) {
        // Extract the text from the message activity the user sent.
        String text = turnContext.getActivity().getText().toLowerCase();
        if (text.contains(" ")){
            // bot-allen-001 xxx -> xxx
            text = text.substring(text.indexOf(" ") + 1);
        }

        // Take the input from the user and create the appropriate response.
        List<Activity> list = processInput(text, turnContext);

        // Respond to the user.
        return turnContext
            .sendActivities(list)
//            .thenCompose(response -> sendSuggestedActions(turnContext))
            .thenApply(result -> null);
    }
    
     private List<Activity> processInput(String text, TurnContext turnContext) {
        ChannelAccount account = turnContext.getActivity().getFrom();
        ChannelAccount recipient = turnContext.getActivity().getRecipient();
//        String from = String.format("<at id=\"%s\">%s</at>", turnContext.getActivity().getConversation().getId(), account.getName());
        String from = String.format("<at id=\"%s\">%s</at>", account.getId(), account.getName());
//        String from = String.format("%s, ", account.getName());
//        String from = "";
        Mention mention = new Mention();
        mention.setMentioned(account);
        mention.setText(from);

        List<Activity>  list = Lists.newArrayList();
        String msg = "即将运行，一旦有结果我会通知你。ID: " + turnContext.getActivity().getId();
        switch (text) {
            case "eu19_001:pf":
            case "eu19_001:by":
            case "eu19_001:raptor":
                Activity activity1 = MessageFactory.text(from + text + msg);
                activity1.setReplyToId(turnContext.getActivity().getId());
//                activity1.setMentions(Lists.newArrayList(mention));
                list.add(activity1);

                addConversationReference(turnContext.getActivity());
                break;
            case "help":
                list.add(getHelpActivity(from));
                break;
            default:
                Activity activity = MessageFactory.text(from + "请从建议的选项中选择一个通道");
                BeanUtils.copyProperties(turnContext.getActivity(), activity,
                    "id", "timestamp", "from", "recipient", "entities", "text", "channelData");

//                activity.setChannelId(Channels.SKYPE);
//                HashMap<Object, Object> withChannelData = Maps.newHashMap();
//                withChannelData.put("text",activity.getText());
//                activity.setChannelData(withChannelData);

                activity.setMentions(Lists.newArrayList(mention));
//                SkypeMentionNormalizeMiddleware.normalizeSkypeMentionText(activity);

                activity.setFrom(recipient);
                activity.setRecipient(account);

                activity.setSuggestedActions(sendSuggestedActions());


                list.add(activity);
                break;
        }
        return list;
    }

message

Why is this happening?

[dmvtech]

Can you please clarify on the issue? Is the problem that it shows @Allen Chen in the message but when clicked on, it gives 未知用户 (unknown user)?

[dmvtech]

Closing due to lack of response.