方法1:instance级别指定,即每次使用时指定
public static XMLGregorianCalendar getXmlDate(Date date) throws DatatypeConfigurationException { return DatatypeFactory.newInstance().newXMLGregorianCalendar(new SimpleDateFormat("yyyy-MM-dd").format(date)); } public static XMLGregorianCalendar getXmlDateTime(Date date) throws DatatypeConfigurationException { return DatatypeFactory.newInstance().newXMLGregorianCalendar(new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss").format(date)); }
方法2:class级别,即使用Adapter,为一个类的某个属性都使用设置好的日期格式
You can use an XmlAdapter to customize how a date type is written to XML.
import java.text.SimpleDateFormat; import java.util.Date; import javax.xml.bind.annotation.adapters.XmlAdapter; public class DateAdapter extends XmlAdapter<String, Date> { private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); @Override public String marshal(Date v) throws Exception { return dateFormat.format(v); } @Override public Date unmarshal(String v) throws Exception { return dateFormat.parse(v); } }
Then you use the @XmlJavaTypeAdapter annotation to specify that the XmlAdapter should be used for a specific field/property.
@XmlElement(name = "timestamp", required = true) @XmlJavaTypeAdapter(DateAdapter.class) protected Date timestamp;