javax.xml.bind.UnmarshalException：意外元素（uri：“”，本地：“”）。预期的元素是

解析XML时遇到UnmarshalException异常

java
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import java.io.File;
public class XmlParser {
    public static void main(String[] args) {
        try {
            // 创建JAXBContext对象
            JAXBContext jaxbContext = JAXBContext.newInstance(Employee.class);
            // 创建Unmarshaller对象
            Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
            // 解析XML文档
            File xmlFile = new File("employee.xml");
            Employee employee = (Employee) unmarshaller.unmarshal(xmlFile);
            // 处理解析结果
            System.out.println(employee.getName());
            System.out.println(employee.getAge());
            System.out.println(employee.getDepartment());
        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }
}