java - 使用 JAXB 解码 XML 时跳过 XML 节点

Question

是否可以像这样解码 XML 文件:

<company id="bh23" name="imob">
   <store>
      <store-info id="2392">
         <address>NYC</address>
         <name>Imob's NYC 5th</name>
      </store>
      <products>
         <product>
             <name>keyboard</keyboard>
             <price>2000</price>
         </product>
         <product>
             <name>mouse</keyboard>
             <price>1000</price>
         </product>
      </products>
   </store>
   <store />
</stores>

像这样的类:

@XmlElementRoot(name = "company")
public class Company {

    @XmlAttribute (name = "id")
    String id;
    @XmlAttribute (name = "name")
    String name;
    @XmlElement (name = "store")
    List<Store>stores;

    //all the getters and setters
 }


 @XmlElementRoot (name = "store")
 public class Store {

      @XmlAttribute (name = "id")
      String id;
      @XmlElement (name = "address")
      String address;
      @XmlElement (name = "name")
      String name;
      @XmlElementWrapper (name = "products")
      @XmlElement (name = "product")
      List<Product>products;

      //all the getters and setters
  }

  public class main {
      public static void main (String args[]) {
        try {
            JAXBContext jaxbContext = JAXBContext.newInstance(Company.class);  
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();  
            Company portfolio = (Company) jaxbUnmarshaller.unmarshal(new File(xmlUrlPath));
            System.out.println(portfolio.toString());
        } catch (JAXBException e) {
            e.printStackTrace();
        }
      }
   }

我正在尝试“跳过”或“跳转”名为“store-info”的节点，因为我不想创建另一个类来保留商店的地址和名称，因为这样会更简单“将地址和名称附加到“Store”类。 当然，当我运行代码时，变量“address”、“id”和“name”变为空，只有产品列表被正确解码。 有没有办法跳过一个节点，将它们的字段合并到另一个类中？我正在避免(出于“合法”目的)使用 MOXy 库及其 XPath 注释。

Answer 1

您可以创建一个 StAX 过滤的 XMLStreamReader 并让 JAXB 解码它以忽略一个或多个 XML 元素。

• http://docs.oracle.com/javase/7/docs/api/javax/xml/stream/XMLInputFactory.html#createFilteredReader%28javax.xml.stream.XMLStreamReader,%20javax.xml.stream.StreamFilter%29

下面是我在回答类似问题时给出的完整示例的链接:

• JAXB filtered parsing