推土机深度映射不起作用 [英] Dozer deep mapping not working

问题描述

我正在尝试使用dozer 4.1在类之间进行映射。我有一个如下所示的源类：

I am trying to use dozer 4.1 to map between classes. I have a source class that looks like this:

    public class initRequest{
     protected String id;
     protected String[] details
}

我有一个目标类看起来像这样：

I have a destination class that looks like this:

public class initResponse{
       protected String id;
       protected DetailsObject detObj;
}

public class DetailsObject{
 protected List<String>  details;
}

所以基本上我希望将details数组中的字符串填充到List中在Details对象中。

So essentially i want the string in the details array to be populated into the List in the Details object.

我尝试过这样的映射：

<mapping wildcard="true" >
  <class-a>initRequest</class-a>
  <class-b>initResponse</class-b>   
  <field>
    <a is-accessible="true">details</a>
    <b is-accessible="true">detObj.details</b>
  </field>
</mapping>

但我收到此错误：

Exception in thread "main" net.sf.dozer.util.mapping.MappingException: java.lang.NoSuchFieldException: detObj.details
    at net.sf.dozer.util.mapping.util.MappingUtils.throwMappingException(MappingUtils.java:91)
    at net.sf.dozer.util.mapping.propertydescriptor.FieldPropertyDescriptor.<init>(FieldPropertyDescriptor.java:43)
    at net.sf.dozer.util.mapping.propertydescriptor.PropertyDescriptorFactory.getPropertyDescriptor(PropertyDescriptorFactory.java:53)
    at net.sf.dozer.util.mapping.fieldmap.FieldMap.getDestPropertyDescriptor(FieldMap.java:370)
    at net.sf.dozer.util.mapping.fieldmap.FieldMap.getDestFieldType(FieldMap.java:103)
    at net.sf.dozer.util.mapping.util.MappingsParser.processMappings(MappingsParser.java:95)
    at net.sf.dozer.util.mapping.util.CustomMappingsLoader.load(CustomMappingsLoader.java:77)
    at net.sf.dozer.util.mapping.DozerBeanMapper.loadCustomMappings(DozerBeanMapper.java:149)
    at net.sf.dozer.util.mapping.DozerBeanMapper.getMappingProcessor(DozerBeanMapper.java:132)
    at net.sf.dozer.util.mapping.DozerBeanMapper.map(DozerBeanMapper.java:94)

我如何映射它以使其有效？

How can i map this so that it works?

推荐答案

问题解决了......

Problem solved...

• is-accesible允许更新对象而不管访问修饰符和getter / setter的存在（对于使用JAXB生成的对象至关重要）

• is-accesible allows an object to be updated regardless of access modifier and presence of getters/setters (essential for objects generated using JAXB)

dot深度映射的表示法用于访问嵌套对象

"dot" notation for deep mapping works to access nested objects

组合这两者是一个在Dozer中不起作用的功能（可能是在较新的版本中）

Combining the two is a feature that does not work in Dozer (maybe it does in a newer version)

解决方案...
修改xsd，使得不需要深度映射。这不是我理想的解决方案，但它比为每个对象编写自定义转换器更好

solution... modify the xsd such that the deep mapping is not required. This is not my ideal solution but its better than writing a custom converter for every object

这篇关于推土机深度映射不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！