import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.GregorianCalendar;

import javax.xml.datatype.DatatypeFactory;

import javax.xml.datatype.XMLGregorianCalendar;

/**

 * XMLGregorianCalendar类型和Date类型之间的相互转换

 * @author Xin

 * 2010-06-12

 */

public class DateTest {

    public XMLGregorianCalendar convertToXMLGregorianCalendar(Date date) {

        GregorianCalendar cal = new GregorianCalendar();

        cal.setTime(date);

        XMLGregorianCalendar gc = null;

        try {

            gc = DatatypeFactory.newInstance().newXMLGregorianCalendar(cal);

        } catch (Exception e) {

             e.printStackTrace();

        }

        return gc;

    }

 

     public  Date convertToDate(XMLGregorianCalendar cal) throws Exception{

         GregorianCalendar ca = cal.toGregorianCalendar();

         return ca.getTime();

     }

 

     public static void main(String[] args) {

         DateTest dateTest = new DateTest();

         XMLGregorianCalendar d = dateTest.convertToXMLGregorianCalendar(new Date());

         System.out.println(d.getDay());

         XMLGregorianCalendar cal = null;

         try {

             cal = DatatypeFactory.newInstance().newXMLGregorianCalendar();

             cal.setMonth(06);

             cal.setYear(2010); 

             Date date = dateTest.convertToDate(cal);

             String format = "yyyy-MM-dd HH:mm:ss";

             SimpleDateFormat formatter = new SimpleDateFormat(format);

             System.out.println(formatter.format(date));

         } catch (Exception e) {

             e.printStackTrace();

         }

     }

}

 

参考：http://blog.163.com/zhaowenchao_vip/blog/static/171515144201152141214975/