Android Smack 4.2 : "XMPPError: feature-not-implemented - cancel" (Error)

Question

我正在尝试从 OpenFire 中检索 Archived Messages

请注意:

1. 我已经添加了存档消息插件。
2. 相同的代码在本地运行良好，openfire 的服务器安装没有抛出错误。
3. 我已经尝试了互联网上提供的所有解决方案，但都没有成功。
4. 我可以在 openfire 面板中看到存档的消息。

下面是检索消息的代码:

public MamManager.MamQueryResult getArchivedMessages() {
        //org.jivesoftware.smack.XMPPException$XMPPErrorException: XMPPError: feature-not-implemented - cancel
        try {
            MamManager mamManager = MamManager.getInstanceFor(connection);
            boolean isSupported = mamManager.isSupportedByServer();
            if (isSupported) {
                MamManager.MamQueryResult mamQueryResult = mamManager.pageAfter(JidCreate.from(mUsername + SERVICE_NAME), "2r2Vf-68", 250);
                List<Forwarded> forwardedMessages = mamQueryResult.forwardedMessages;
                Forwarded d = forwardedMessages.get(0);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

除此之外，我还尝试为 smack 4.2 实现 OfflineMessageManager

下面是离线管理器的代码:

   public static void handleOfflineMessages() throws Exception {
        OfflineMessageManager offlineMessageManager = new OfflineMessageManager(getConnection());

        if (!offlineMessageManager.supportsFlexibleRetrieval()) {
            return;
        }

        if (offlineMessageManager.getMessageCount() == 0) {
            String d = "ss";
        } else {
            List<Message> msgs = offlineMessageManager.getMessages();
            for (Message msg : msgs) {
                BareJid fullJid = msg.getFrom().asBareJid();
                String messageBody = msg.getBody();
                if (messageBody != null) {

                }
            }
            // offlineMessageManager.deleteMessages();
        }

    }

Note : The above method is not throwing any error my I am always getting the message count = 0. where as I am following the official Doc for this. i.e not sending presence so as to get all offline messages. but failed to do so.

this is the link for official doc : OfflineMessageManager

谁能指出我做错了什么？

Answer 1

在 OF 的插件处重新加载 监控服务
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