Question

基本上我试图解开这个

<polls xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="polls.xsd">
<poll id="1">
    <title>WSD Meeting</title>
    <state>Open</state>
    <userID>1</userID>
    <datecreated>88/88/1996</datecreated>
    <location>UTS</location>
    <description>Meeting for assignment</description>
    <meetings>
        <meeting option ='1'>
            <time>12:00</time>
            <date>99/88/1996</date>
            <responses>
                <response>John Doe</response>
            </responses>
        </meeting>
        <meeting option ='2'>
            <time>12:00</time>
            <date>99/88/1996</date>
            <responses>
                <response>John Doe</response>
                <response>John Smith</response>
            </responses>
        </meeting>
    </meetings>
</poll>
  </polls>

当我参加会议时，解组会遇到麻烦这是民意调查班

@XmlAccessorType(XmlAccessType.FIELD)
public class Poll implements Serializable {
@XmlAttribute
private int ID;
private String title;
private int state;
private int userID;
private String datecreated;
private String location;
private String description;
@XmlElement(name = "meetings")
private ArrayList<Meeting> meetings = new ArrayList<Meeting>();

这是会议班

@XmlAccessorType(XmlAccessType.FIELD)
public class Meeting implements Serializable {
@XmlAttribute
private int option;
private String time;
private String date;
@XmlElement(name = "responses")
private ArrayList<Response> responses = new ArrayList<Response>();

基本上来自民意调查的数据正在被编组好（我已经检查了这个）但是一旦它遇到会议就会使列表中的一个条目为空，我错过了什么？

Answer 1

您似乎错过了会议类（对应于<meetings>）包装会议实例（对应于<meeting>）。

如果你使用像XJC这样的工具生成JAXB，那就不会发生这种情况，因此不清楚你是如何在这种情况下结束的（也许你试图自定义一些东西）。但也许这在任何情况下都有帮助。

JAX-B处理来自xml的双嵌套元素

1 个答案: