有意义的容器元素示例 [英] Example of meaningful container elements

问题描述

它的用途是什么

https://docs .oracle.com/javase/7/docs/api/javax/xml/bind/annotation/XmlElementWrapper.html

以便可以以可接受的标准方式以编程方式创建馆藏"?

so that a "collection of collections" can be created programatically in a standards acceptable fashion?

带有示例的IBM pdf

示例:

<library>
<name>The XML Institute Public Library</name>
<endowment>
<donor>IBM</donor>
<book isbn="0764547607">
<title>The XML Bible, 2nd Edition</title>
</book>
<book isbn="0321150406">
<title>Effective XML</title>
</book>
</endowment>
<endowment>
<donor>W3C</donor>
<book isbn="1861005946">
<title>Beginning XSLT</title>
</book>
</endowment>

推荐答案

您可以像这样构造您的类:

You can structure your classes like this:

图书馆是根，

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement
public class Library {

    private String name;
    private List<Endowment> endowment;
}

其中包含一份捐赠清单:

Which contains a list of endowments:

@XmlAccessorType(XmlAccessType.FIELD)
public class Endowment {

    private String donor;
    private List<Book> book;
}

其中包含书籍列表:

@XmlAccessorType(XmlAccessType.FIELD)
public class Book {

    @XmlAttribute(name = "isbn")
    private String isbn;
    private String title;
}

如果您尝试使用这些类解组所提供的xml，那么您将成功.

If you try to unmarshal the provided xml using these classes, you will be successful.

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