java - J2EE 7 Rest 客户端中的属性而不是值

Question

我正在尝试使用具有如下响应的网络服务

<oxip version="7.1" created="2014-11-18 14:25:20" lastMsgId="" requestTime="0.0174">
  <response request="getPoolResults" code="001" message="success" debug="" provider="GENERIC">
    <disclaimer></disclaimer>
    <pool id="979" name="Auto Pool-2014-11-11 09:00:00" poolType="MLJT" closesAt="2014-11-17 20:00:00" displayOrder="" resulted="N" lastUpdateDate="2014-11-18" lastUpdateTime="14:24:57">
      <poolPrizes>
        <prize numCorrect="3" winners="0" guarantee="0" value="18.00" size="18.0"/>
      </poolPrizes>
      <event id="15854" name="Barnet v Cameroun" scoreHome="" scoreAway="" outcomeId="" poolResultStatus="" lastUpdateDate="2014-11-14" lastUpdateTime="13:43:51"/>
      <event id="15855" name="Celtic v Clydebank" scoreHome="" scoreAway="" outcomeId="" poolResultStatus="" lastUpdateDate="2014-11-14" lastUpdateTime="13:43:51"/>
      <event id="15856" name="Barcelona v Arbroath" scoreHome="" scoreAway="" outcomeId="" poolResultStatus="" lastUpdateDate="2014-11-14" lastUpdateTime="13:43:51"/>
    </pool>
  </response>
</oxip>

所以只有属性 - 没有值。我正在消费它就像

WebTarget oxipTarget = ClientBuilder.newClient().target(<URL>);
oxip = oxipTarget.request(MediaType.APPLICATION_XML).get(Oxip.class);

并且Oxip是层次结构的基本根

但只创建了实例，我在实例中没有得到任何值。如何获取实例中的属性作为值？

从我的日志中，我可以缝制以下内容(来自每个构造函数的日志)

creating Oxip 
creating Response 
creating Disclaimer 
creating Pool 
creating Prize
creating Event 
creating Event 
creating Event 

(我会正确地处理不在事件列表中的 3 个事件的问题 - 我正在尝试让制作人更改此设置)

亲切的问候 托尔本

Answer 1

将创建对象(因此调用构造函数)，但如果类的字段/属性未正确注释，则如果找不到匹配项(即空值)，则不会填充值。元素属性，应使用 @XmlAttribute 进行注释。如果您忽略此注释，属性将默认为 @XmlElement 。如果找不到该名称的元素，则不会填充任何内容。

集合有点棘手。例如 <poolPrizes> ，因为您没有 PoolPrizes类，需要注释List<Prize>与 @XmlElementWrapper(name = "poolPrizes") 。还有List<Event> ，如果字段/属性名称与xml元素名称不匹配，则应使用@XmlElement(name = "event")进行注释(最后一部分确实适用于所有属性)

我决定尝试一下您的 XML，这是一个可行的解决方案(经过测试)

Oxip

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Oxip {
    @XmlElement
    protected Response response;
    @XmlAttribute
    protected String id;
    @XmlAttribute
    protected String created;
    @XmlAttribute
    protected String lastMsgId;
    @XmlAttribute
    protected String requestTime;
    // GETTER and SETTERS
}

Respoonse

@XmlAccessorType(XmlAccessType.FIELD)
public class Response {
    @XmlAttribute
    protected String request;
    @XmlAttribute
    protected String code;
    @XmlAttribute
    protected String message;
    @XmlAttribute
    protected String debug;
    @XmlAttribute
    protected String provider;
    @XmlElement
    protected Disclaimer disclaimer;
    @XmlElement
    protected Pool pool;
    // GETTERS and SETTERS
}

Disclaimer

@XmlAccessorType(XmlAccessType.FIELD)
public class Disclaimer {  
}

Pool

@XmlAccessorType(XmlAccessType.FIELD)
public class Pool {
    @XmlElement(name = "prize")
    @XmlElementWrapper(name = "poolPrizes")
    protected List<Prize> poolPrizes;
    @XmlElement(name = "event")
    private List<Event> events;  
    @XmlAttribute
    protected String id;
    @XmlAttribute
    protected String name;
    @XmlAttribute
    protected String poolType;
    @XmlAttribute
    protected String closesAt;
    @XmlAttribute
    protected String displayOrder;
    @XmlAttribute
    protected String resulted;
    @XmlAttribute
    protected String lastUpdateDate;
    @XmlAttribute
    protected String lastUpdateTime;
    // GETTER and SETTERS
}

Prize

@XmlAccessorType(XmlAccessType.FIELD)
public class Prize {      
    @XmlAttribute
    protected String numCorrect;
    @XmlAttribute
    protected String winners;
    @XmlAttribute
    protected String guarantee;
    @XmlAttribute
    protected String value;
    @XmlAttribute
    protected String size;
    // GETTERS and SETTERS
}

Event

@XmlAccessorType(XmlAccessType.FIELD)
public class Event {
    @XmlAttribute
    protected String id;
    @XmlAttribute
    protected String name;
    @XmlAttribute
    protected String scoreHome;
    @XmlAttribute
    protected String scoreAway;
    @XmlAttribute
    protected String outcomeId; 
    @XmlAttribute
    protected String poolResultStatus; 
    @XmlAttribute
    protected String lastUpdateDate; 
    @XmlAttribute
    protected String lastUpdateTime;
    // GETTERS and SETTERS
}

<小时/>

• 看看 JAXB Tutorial了解有关这些注释的更多信息。