Java 错误:无法初始化主类 [英] Java error: Unable to initialize main class

问题描述

我正在尝试运行此代码，但出现以下错误.

I am trying to run this code but I get the following error.

package practicaXML;
import javax.xml.xquery.*;
import org.w3c.dom.Node;
import net.xqj.basex.BaseXXQDataSource;

public class App {
    public static void main(String[] args) {
        try {
            XQDataSource xqs = new BaseXXQDataSource();
            xqs.setProperty("serverName", "localhost");
            xqs.setProperty("port", "1984");
            xqs.setProperty("databaseName", "facts");

            XQConnection conn = xqs.getConnection("admin", "admin");

            String xqueryString = "//province[contains(@name, 'x')]";
            XQExpression xqe = conn.createExpression();
            XQResultSequence rs = xqe.executeQuery(xqueryString);

            Node n;
            while(rs.next()) {
                n = rs.getNode();
                System.out.println(n.getAttributes().getNamedItem("name").getNodeValue());
            }

            conn.close();
        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }
}

控制台:

Error: Unable to initialize main class practicaXML.App
Caused by: java.lang.NoClassDefFoundError: javax/xml/xquery/XQDataSource

这是我第一次使用 basex 和 xpath，我不知道是什么导致了这个问题或如何解决它.

It is my first time working with basex and xpath and I have no idea what could be causing this or how to fix it.

推荐答案

您缺少依赖项.将依赖添加到类路径或 maven 仓库

You are missing dependencies. Add dependencies to the classpath or maven repository

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