Question

我有一个OpenFire服务器，我正在尝试构建一个Smack客户端来连接它。最初，我只是尝试使用Smack API和下面的代码（来自答案here）：

import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.packet.Presence;

public class Main {
public static void main(String[] args) 
{
    ConnectionConfiguration config = new ConnectionConfiguration(
            "talk.google.com", 5222, "google.com");
    XMPPConnection connection = new XMPPConnection(config);
    Presence presence;
    String status;

    try {
        connection.connect();
        connection.login("mail_id@gmail.com", "password");
        status = "DND";

        presence = new Presence(Presence.Type.available, status, 24,
                Presence.Mode.available);
        while (true) {
            status = set(status);
            presence.setStatus(status);
            connection.sendPacket(presence);
            Thread.sleep(1000);
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        connection.disconnect();
    }
}

private static String set(String input) {
    return input.substring(1) + input.charAt(0);
}
}

但是，我一直收到以下错误

线程“main”中的异常java.lang.NoClassDefFoundError： org / kxml2 / io / KXmlParser at org.jivesoftware.smack.XMPPConnection。（XMPPConnection.java:110）在 org.jivesoftware.smack.ConnectionConfiguration。（ConnectionConfiguration.java:57）在Main.main（Main.java:8）引起： java.lang.ClassNotFoundException：org.kxml2.io.KXmlParser at java.net.URLClassLoader.findClass（URLClassLoader.java:381）at java.lang.ClassLoader.loadClass（ClassLoader.java:424）at sun.misc.Launcher $ AppClassLoader.loadClass（Launcher.java:335）at at java.lang.ClassLoader.loadClass（ClassLoader.java:357）... 3更多

任何帮助将不胜感激

使用Smack API时ClassNotFoundException

0 个答案: