从Java XMLGregorianCalendar中删除时间戳

import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
import java.util.GregorianCalendar;

public class Main {
    public static void main(String[] args) throws DatatypeConfigurationException {
        // 创建一个XMLGregorianCalendar对象
        XMLGregorianCalendar xmlGregorianCalendar = createXMLGregorianCalendar();

        // 从XMLGregorianCalendar中删除时间戳
        xmlGregorianCalendar.setTime(0, 0, 0);

        // 将XMLGregorianCalendar转换为字符串表示形式
        String xmlFormat = xmlGregorianCalendar.toXMLFormat();
        System.out.println(xmlFormat);
    }

    private static XMLGregorianCalendar createXMLGregorianCalendar() throws DatatypeConfigurationException {
        GregorianCalendar gregorianCalendar = new GregorianCalendar();
        DatatypeFactory datatypeFactory = DatatypeFactory.newInstance();
        return datatypeFactory.newXMLGregorianCalendar(gregorianCalendar);
    }
}