Jackson XML解析，两个包装器具有相同的子元素。

huangapple
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英文:

Jackson XML parsing, two wrappers have the same child element

问题

My XML是从Jira导出的工作流程。它看起来像这样：

  1. <workflow>
  2.     <initial-actions>
  3.         <action>...</action>
  4.         <action>...</action>
  5.     </initial-actions>
  6.     <global-actions>
  7.         <action>...</action>
  8.         <action>...</action>
  9.     </global-actions>
  10. </workflow>

尝试将其解析为POJO时，我有一个类Workflow，定义如下：

  1. @JacksonXmlRootElement(localName = "workflow")
  2. public class Workflow implements XMLDocumentHeader {
  3. 	
  4.     @JacksonXmlElementWrapper(localName = "initial-actions")
  5.     @JacksonXmlProperty(localName = "action")
  6.     private List<Action> initialActions = new ArrayList<>();
  7.     
  8.     @JacksonXmlElementWrapper(localName = "global-actions")
  9.     @JacksonXmlProperty(localName = "action")
  10.     private List<Action> globalActions = new ArrayList<>();
  11. }

但是这不被允许，因为我将localName "action"与两个setter关联起来：

  1. java.lang.IllegalArgumentException: Conflicting setter definitions for property "action"

但是如果我省略 @JacksonXmlProperty(localName = "action")，那么当我序列化POJO时，输出将不正确：

  1. <initial-actions>
  2.     <initialActions>			
  3.     </initialActions>
  4. </initial-actions>
  5. <global-actions>
  6.     <globalActions>
  7.     </globalActions>
  8. </global-actions>

我也为Action类使用了 @JacksonXMLRootElement(localName = "action")，但它不起作用。

如何在两个 @JacksonXmlElementWrapper 中使用相同的 @JacksonXMLProperty(localName)？

英文:

My XML is a workflow exported from Jira. It looks like this:

  1. &lt;workflow&gt;
  2.     &lt;initial-actions&gt;
  3.         &lt;action&gt;...&lt;/action&gt;
  4.         &lt;action&gt;...&lt;/action&gt;
  5.     &lt;/initial-actions&gt;
  6.     &lt;global-actions&gt;
  7.         &lt;action&gt;...&lt;/action&gt;
  8.         &lt;action&gt;...&lt;/action&gt;
  9.     &lt;/global-actions&gt;
  10. &lt;/workflow&gt;

Trying to parse it into a POJO, I have Workflow class defined like this:

  1. @JacksonXmlRootElement(localName = &quot;workflow&quot;)
  2. public class Workflow implements XMLDocumentHeader {
  4.     @JacksonXmlElementWrapper(localName = &quot;initial-actions&quot;)
  5.     @JacksonXmlProperty(localName = &quot;action&quot;)
  6.     private List&lt;Action&gt; initialActions = new ArrayList&lt;&gt;();
  7.     @JacksonXmlElementWrapper(localName = &quot;global-actions&quot;)
  8.     @JacksonXmlProperty(localName = &quot;action&quot;)
  9.     private List&lt;Action&gt; globalActions = new ArrayList&lt;&gt;();
  10. }

But that is not allowed because I have the localName "action" associated with two setters:

  1. java.lang.IllegalArgumentException: Conflicting setter definitions for property &quot;action&quot;

But if I omit @JacksonXmlProperty(localName = &quot;action&quot;), then when I serialize the POJO, the output will be incorrect:

  1. &lt;initial-actions&gt;
  2. 	&lt;initialActions&gt;			
  3. 	&lt;/initialActions&gt;
  4. &lt;/initial-actions&gt;
  5. &lt;global-actions&gt;
  6. 	&lt;globalActions&gt;
  7.     &lt;/globalActions&gt;
  8. &lt;/global-actions&gt;

I have @JacksonXMLRootElement(localName = &quot;action&quot;) for the Action class too, but it doesn't do anything.

How can I have two @JacksonXmlElementWrapper with the same @JacksonXMLProperty(localName)?

答案1

得分: 0

Problem solved by adding Actions class.

  1. @JacksonXmlRootElement
  2. public class Actions {
  3.     @JacksonXmlElementWrapper(useWrapping = false)
  4.     @JacksonXmlProperty(localName = "action")
  5.     private List<Action> actions = new ArrayList<>();
  6. }

Then use Actions instead of List<Action> in Workflow:

  1. @JacksonXmlProperty(localName = "initial-actions")
  2. private Actions initialActions;
  3. @JacksonXmlProperty(localName = "global-actions")
  4. private Actions globalActions;
英文:

Problem solved by adding Actions class.

  1. @JacksonXmlRootElement
  2. public class Actions {
  3.     @JacksonXmlElementWrapper(useWrapping = false)
  4.     @JacksonXmlProperty(localName = &quot;action&quot;)
  5.     private List&lt;Action&gt; actions = new ArrayList&lt;&gt;();
  6. }

Then use Actions instead of List&lt;Action&gt; in Workflow:

  1. @JacksonXmlProperty(localName = &quot;initial-actions&quot;)
  2. private Actions initialActions;
  3. @JacksonXmlProperty(localName = &quot;global-actions&quot;)
  4. private Actions globalActions;

huangapple
  • 本文由 发表于 2023年5月25日 09:36:52
  • 转载请务必保留本文链接：https://go.coder-hub.com/76328355.html
  • jackson-databind
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