java - JAXB 解码问题

Question

我必须在 Java 对象中解析以下 xml:

<ArrayOfTranslateArrayResponse xmlns="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<TranslateArrayResponse>
    <From>it</From>
    <OriginalTextSentenceLengths xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
        <a:int>5</a:int>
    </OriginalTextSentenceLengths>
    <TranslatedText>Mom</TranslatedText>
    <TranslatedTextSentenceLengths xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
        <a:int>3</a:int>
    </TranslatedTextSentenceLengths>
</TranslateArrayResponse>
<TranslateArrayResponse>
    <From>it</From>
    <OriginalTextSentenceLengths xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
        <a:int>4</a:int>
    </OriginalTextSentenceLengths>
    <TranslatedText>Dad</TranslatedText>
    <TranslatedTextSentenceLengths xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
        <a:int>3</a:int>
    </TranslatedTextSentenceLengths>
</TranslateArrayResponse>

这是我实现的两个类:

@XmlRootElement(name="ArrayOfTranslateArrayResponse")
@XmlAccessorType(XmlAccessType.FIELD)
@Getter
@Setter
@ToString
public class TranslateResponse {

    @XmlElement(name="TranslateArrayResponse")
    private LinkedList<TranslatedResponseObject> translations;

}

和

@XmlAccessorType(XmlAccessType.FIELD)
@Getter
@Setter
@ToString
public class TranslatedResponseObject {

    @XmlElement(name="TranslatedText")
    private String translatedText;


}

通过对提供的 xml 示例进行解码，我收到了字段翻译的 null 值。怎么了？

Answer 1

感谢 @klonq 调试问题的建议，我已经找到了解决方案。有必要在每个 @XmlElement 和 @XmlRootElement 上添加命名空间，如下所示:

@XmlRootElement(name="ArrayOfTranslateArrayResponse", namespace="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2")
@XmlAccessorType(XmlAccessType.FIELD)
@Getter
@Setter
@ToString
public class TranslateResponse {

    @XmlElement(name="TranslateArrayResponse", namespace="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2")
    private LinkedList<TranslatedResponseObject> translations;

}

@XmlAccessorType(XmlAccessType.FIELD)
@Getter
@Setter
@ToString
public class TranslatedResponseObject {

    @XmlElement(name="TranslatedText", namespace="http://schemas.datacontract.org/2004/07/Microsoft.MT.Web.Service.V2")
    private String translatedText;


}