Question

我正在通过Eclipse添加Smack API 4.0

将XMpp连接写入我的XMpp服务器

import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;



public class XmppManager {

    public static final String HOST = "localhost";
    public static final int PORT = 5222;
    public static final String SERVICE = "chat";


    public static void main (String[] arg){
        ConnectionConfiguration connConfig = new ConnectionConfiguration(XmppManager.HOST, XmppManager.PORT,
                XmppManager.SERVICE);


    }


}

，但在此期间，我遇到如下错误：

Exception in thread "main" java.lang.NoClassDefFoundError: org/xmlpull/v1/XmlPullParserFactory
    at org.jivesoftware.smack.SmackConfiguration.processConfigFile(SmackConfiguration.java:321)
    at org.jivesoftware.smack.SmackConfiguration.processConfigFile(SmackConfiguration.java:316)
    at org.jivesoftware.smack.SmackConfiguration.<clinit>(SmackConfiguration.java:148)
    at org.jivesoftware.smack.ConnectionConfiguration.<init>(ConnectionConfiguration.java:65)
    at Snapp.XmppManager.main(XmppManager.java:18)
Caused by: java.lang.ClassNotFoundException: org.xmlpull.v1.XmlPullParserFactory
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 5 more

此外，在行“”下添加XMPPConnection无法实例化XMPPConnection“”

XMPPConnection connection = new XMPPConnection (connConfig);

Java_Eclipse通知“无法实例化XMPPConnection”错误

您之前遇到过两个问题吗？请帮我弄清楚这个问题。

感谢。

Answer 1

线程中的异常＆＃34; main＆＃34; java.lang.NoClassDefFoundError：组织/ xmlpull / V1 / XmlPullParserFactory

您需要在类路径中使用XPP3。

此外，在行＆＃34;＆＃34;下添加XMPPConnection无法实例化 XMPPConnection＆＃34;＆＃34;

在Smack 4中使用XMPPTCPConnection代替XMPPConnection。

Smack API 4.0遇到错误＆＃34; org / xmlpull / v1 / XmlPullParserFactory＆＃34;和＆＃34;无法实例化XMPPConnection＆＃34;

1 个答案: