Question

I am trying to create a room using aSmack muc. I have a connect() method which connects to the xmpp server no problem (below).

public void connect() {

                ConnectionConfiguration connConfig = new ConnectionConfiguration(HOST,
        PORT, SERVICE);
        XMPPConnection connection = new XMPPConnection(connConfig);

        try {
            connection.connect();
            Log.i("XMPPChatDemoActivity",
                    "Connected to " + connection.getHost());
        } catch (XMPPException ex) {
            Log.e("XMPPChatDemoActivity",
                    "Failed to connect to " + connection.getHost());
            Log.e("XMPPChatDemoActivity", ex.toString());
            setConnection(null);
        }
        try {
            connection.login(USERNAME, PASSWORD);
            Log.i("XMPPChatDemoActivity",
                    "Logged in as " + connection.getUser());

            Presence presence = new Presence(Presence.Type.available);
            connection.sendPacket(presence);
            setConnection(connection);

        } catch (XMPPException ex) {
            Log.e("XMPPChatDemoActivity", "Failed to log in as " + USERNAME);
            Log.e("XMPPChatDemoActivity", ex.toString());
            setConnection(null);
        }
    }

However when I try to use the .create function in the createRoom method below:

                private void createRoom() {
        MultiUserChat muc = new MultiUserChat(connection,
                "name@conference.<myxmppserver>");
        try {
            if (connection != null) {
                muc.create("testroom");
                Form form = muc.getConfigurationForm();
                Form submitForm = form.createAnswerForm();
                for (Iterator fields = form.getFields(); fields.hasNext();) {
                    FormField field = (FormField) fields.next();
                    if (!FormField.TYPE_HIDDEN.equals(field.getType())
                            && field.getVariable() != null) {
                        submitForm.setDefaultAnswer(field.getVariable());
                    }
                }
                submitForm.setAnswer("muc#roomconfig_publicroom", true);
                muc.sendConfigurationForm(submitForm);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

它给了我一个ClassCastException错误，解决方案就在这里：ClassCastException when creating MUC room for XMPP group chat using aSmack

但是当我添加

时

            Context context = getApplicationContext();
    SmackAndroid.init(context);

到我的connect（）方法的开头，我收到此错误：

java.lang.NoClassDefFoundError：org.jivesoftware.smack.SmackAndroid

但是我在eclipse中添加了包含类SmackAndroid的aSmack库到我的构建路径。不知道如何解决这个问题，因为类似乎在编译时在构建路径中，但在运行时找不到。有什么建议？谢谢！

Answer 1

回答你的问题：

java.lang.NoClassDefFoundError：org.jivesoftware.smack.SmackAndroid

但是我添加了包含SmackAndroid类的aSmack库   在eclipse中我的构建路径。不知道如何解决这个问题   该类似乎在编译时在构建路径中，但不是   在运行时发现。有什么建议？谢谢！

您是否尝试在属性＆gt;下设置asmack库？ java build path＆gt;订单和出口菜单？（不仅是Libraries选项卡）似乎编译没有那个错误。

screenshot

SmackAndroid.init（上下文）出错

1 个答案: