java - 将日期存储在 XML 标签中

Question

我有一个关于将日期时间存储到 Jaxb 中的问题。目前我有这个:

XML:

<reconcile>
  <start_date>2018-04-08T11:02:44</start_date>
  <end_date>2018-04-08T11:02:44</end_date>
  <page>1</page>
</reconcile>

JaxB 对象:

    @XmlElement(name = "start_date")
    public Date start_date;
    @XmlElement(name = "end_date")
    public Date end_date;
    @XmlElement(name = "page")

我应该使用字符串作为 start_date 和 end_date 还是需要在使用 JAXB 之前转换字符串 2018-04-08 11:02:44 ？您能分享一下最佳实践吗？

Answer 1

从 https://github.com/jaxb-java-time-adapters/jaxb-java-time-adapters#releases 添加了用于 java.time 的 JAXB

然后像这样注释:

@XmlRootElement
public class Reconcile {
    @XmlElement(name = "start_date")
    @XmlJavaTypeAdapter(LocalDateTimeXmlAdapter.class)
    public LocalDateTime start_date;

    @XmlElement(name = "end_date")
    @XmlJavaTypeAdapter(LocalDateTimeXmlAdapter.class)
    public LocalDateTime end_date;

    @XmlElement(name = "page")
    public int page;
}

测试

Reconcile reconcile = new Reconcile();
reconcile.start_date = LocalDateTime.of(2018, 4, 8, 11, 2, 44);
reconcile.end_date = LocalDateTime.of(2018, 11, 8, 11, 2, 44);
reconcile.page = 1;

JAXBContext jaxbContext = JAXBContext.newInstance(Reconcile.class);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
marshaller.marshal(reconcile, System.out);

输出

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<reconcile>
    <start_date>2018-04-08T11:02:44</start_date>
    <end_date>2018-11-08T11:02:44</end_date>
    <page>1</page>
</reconcile>