將Java對象映射到@XmlElement值

Question

當我運行JAXBxmlToJava時LocationType集爲空。任何機構都可以建議如何將xml的類型組件映射到Java的LocationType對象。 我有以下圓弧response.xml： -

<address_component> 
    <long_name>BMC Colony</long_name> 
    <short_name>BMC Colony</short_name> 
    <type>neighborhood</type> 
    <type>political</type> 
    </address_component> 

而且下面的代碼，AddressComponent： -

@XmlRootElement(name = "address_component") 
public class AddressComponent { 

    @XmlElement(name = "long_name") 
    private String longName; 
    @XmlElement(name = "short_name") 
    private String shortName; 
    @XmlElement(name = "type") 
    private Set<LocationType> locationTypeSet; 
    //Setter Getter 
} 

的locationType： -

@XmlRootElement(name="type") 
public class LocationType { 

    private Integer locationTypeId; 
    @XmlElement(name = "type") 
    private String type; 
    private String status; 
    //Setter Getter 
} 

JAXBxmlToJava.java:-

public class JAXBxmlToJava { 
    public static void main(String[] args) { 
     try { 
      File file = new File("arc-response.xml"); 
      JAXBContext jaxbContext = JAXBContext.newInstance(AddressComponent.class); 

      Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller(); 
      AddressComponent geoResponse = (AddressComponent) jaxbUnmarshaller.unmarshal(file); 
      System.out.println(geoResponse); 
     } catch (JAXBException e) { 
      e.printStackTrace(); 
     } 
    } 
} 

Answer 1

Y您將需要@XmlValue來映射文本節點（例如'鄰居'）到自定義類中的字段。

當我測試你的代碼中，Set<LocationType>不null - 有兩個LocationType，它出現，但他們type場爲null。我不確定這是否是您的問題。

當我改變了LocationType類

@XmlRootElement(name = "type") 
public class LocationType { 

    private Integer locationTypeId; 
    @XmlValue 
    private String type; 
    private String status; 
    // Setter Getter 
} 

它的工作。