根标记下具有不同元素名称和属性的Jackson XML

Question

我是Jackson XML的新手，我需要在同一根元素下构造具有不同元素名称和属性的Jackson XML。

我期望的xml输出

<item name="Whatever">
 <problem_id id="12312"/>
 <problem_type type="1765"/>
 <problem_desc desc="faulty"/>
 </item>

我的pojo类（不确定如何添加剩余的元素和属性）

@JacksonXmlRootElement(localName = "item")
public class ItemsDTO {

     @JacksonXmlProperty(localName = "name",isAttribute = true)
     private String name="Whatever";

}

任何建议都将不胜感激。

Answer 1

尽管将problem的属性“封装”在一个单独的元素中会更好一些，但是如下所示：

<item name="Whatever">
  <problem id="12312" type="1765" desc="faulty"/>
</item>

这可以通过以下代码实现：

@JacksonXmlRootElement(localName = "item")
public class ItemDTO {

    @JacksonXmlProperty(isAttribute = true)
    private String name = "Whatever";

    @JacksonXmlProperty
    private Problem problem = new Problem();
}

class Problem {
    @JacksonXmlProperty(isAttribute = true)
    private int id = 12312;

    @JacksonXmlProperty(isAttribute = true)
    private int type = 1765;

    @JacksonXmlProperty(isAttribute = true)
    private String desc = "faulty";
}

Answer 2

要做到这一点，您可能需要实现更多已经实现的类，然后将相关属性添加到容器类ItemsDTO：

import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;

@JacksonXmlRootElement(localName = "item")
public class ItemsDTO {

    @JacksonXmlProperty(isAttribute = true)
    private String name = "Whatever";

    @JacksonXmlProperty(localName = "problem_id")
    private ProblemId problemId = new ProblemId();

    @JacksonXmlProperty(localName = "problem_type")
    private ProblemType problemType = new ProblemType();

    @JacksonXmlProperty(localName = "problem_desc")
    private ProblemDesc problemDesc = new ProblemDesc();
}

class ProblemId {
    @JacksonXmlProperty(isAttribute = true)
    private int id = 12312;
}

class ProblemType {
    @JacksonXmlProperty(isAttribute = true)
    private int type = 1765;
}

class ProblemDesc {
    @JacksonXmlProperty(isAttribute = true)
    private String desc = "faulty";
}