java - 如何将Java集合转换为JAXB中XMLElement的属性？

Question

我有以下两门类(class)。一个包含另一个的数组..

@XmlType(name="category", propOrder =          { "title", "description", "sdImg", "hdImg","categoryLeafDTO" } ) 
public class CategoryDTO implements Serializable {
    @XmlElementWrapper (name="categoryleaf")
    public CategoryLeafDTO[] getCategoryLeafDTO() {
        return this.categoryleafdto;
    }

    public void setCategoryLeafDTO(CategoryLeafDTO[] categoryleafdto) {
       this.categoryleafdto = categoryleafdto;
    }
}

<小时/>

@XmlType (name = "categoryleaf" , propOrder = { "title", "description", "autoplay" }) 
public class CategoryLeafDTO implements Serializable {
  private static final long serialVersionUID = 1L;
  private String title;
  private String description;
  private String autoplay;

  @XmlAttribute (name="title")
  public String getTitle() {
     return title;
  }

  public void setTitle(String title) {
     this.title = title;
  }

  @XmlAttribute (name="description")
  public String getDescription() {
     return description;
  }

  public void setDescription(String description) {
     this.description = description;
  }

  @XmlAttribute (name="autoplay")
  public String getAutoplay() {
     return this.autoplay;      
  }

  public void setAutoplay(String autoplay) {
     this.autoplay = autoplay;
  }
}

当我转换时，它显示为

<category title="Trailers" description="Just Trailers"     sd_img="http://a.dolimg.com/media/en-US/m/dcom/tvapp/roku/assets/trailers_v4e_250.png"    hd_img="http://a.dolimg.com/media/en-US/m/dcom/tvapp/roku/assets/trailers_v4e_250.png">
   <categoryleaf>
      <categoryLeafDTO title="Trailers" description="Just Trailers" autoplay="ON" /> 
      <categoryLeafDTO title="Cars" description="cars the movie" autoplay="OFF" /> 
   </categoryleaf>
</category>

但我的要求是让它成为

<category title="Trailers" description="Just Trailers"  sd_img="http://a.dolimg.com/media/en-US/m/dcom/tvapp/roku/assets/trailers_v4e_250.png"  hd_img="http://a.dolimg.com/media/en-US/m/dcom/tvapp/roku/assets/trailers_v4e_250.png">
   <categoryleaf title="Trailers" description="Just Trailers" autoplay="ON">
   <categoryleaf title="Cars" description="cars the movie" autoplay="OFF">
</category>

Answer 1

在CategoryDTO中，将@XmlElementWrapper替换为@XmlElement，即

@XmlElement(name="categoryleaf")
public CategoryLeafDTO[] getCategoryLeafDTO() {
    return this.categoryleafdto;
}

@XmlElementWrapper 在您想要围绕集合的包装元素时使用。