使用 xstream 填充列表值 [英] Populating list values using xstream

问题描述

我正在使用 Xstream 以下列格式读取一些 xml

I am working with Xstream to read some xml in the following format

 <Objects>  
  <Object Type="System.Management.Automation.Internal.Host.InternalHost">   
    <Property Name="Name" Type="System.String">ConsoleHost</Property>   
    <Property Name="Version" Type="System.Version">2.0</Property>   
    <Property Name="InstanceId" Type="System.Guid">7e2156</Property>
  </Object> 
</Objects> 

基本上在对象标签下可以有 n 个对象类型，每个对象类型可以有 n 个属性标签.所以我用Java类和代码来建模，如下

Basically under Objects tag there can be n number of Object Type and each Object Type can have n number of Property tags. So I have modelled by Java classes and the code to read it as follows

 @XStreamAlias("Objects")
class ParentResponseObject {
    @XStreamImplicit
    List <ResponseObject>responseObjects = new ArrayList<ResponseObject>(); 
    public String toString () {
        return responseObjects.get(0).toString();       
    }   
}
@XStreamAlias("Object")
@XStreamConverter(value = ToAttributedValueConverter.class, strings = { "value" })
class ResponseObject {
    @XStreamAsAttribute
       String Type;
       String value;
       @XStreamImplicit
       List <Properties> properties = new ArrayList<Properties>();  
      public String toString () {
        return Type+" value is "+"List is "+properties+ value;      
    }   
}
@XStreamAlias("Property")
@XStreamConverter(value = ToAttributedValueConverter.class, strings = { "value" })
class Properties {
    @XStreamAsAttribute
    String Name;
    @XStreamAsAttribute
    String Type;
    String value;
    Properties (String name, String type,String value) {
            this.Name = name;
            this.Type = type;
            this.value =  value;
        }   
}

使用此代码，我可以填充 ParentResponseObject 类中的 responseObjects 列表.但是，ResponseObject 中的属性 List 始终为 null 并且不会被填充，即使我在这两种情况下都使用相同的技术.我已经调试了很多，但找不到任何东西.恳请您的帮助和指导.

Using this code, I am able to populate the responseObjects List in the ParentResponseObject class. However, the properties List in the ResponseObject is always null and is not getting populated , even though I am using the same technique in both the cases. I have debugged a lot but could not find anything. Your help and guidance is solicited.

推荐答案

添加对隐式工作的引用

  @XStreamImplicit(itemFieldName="Object")
  List<ResponseObject> responseObjects = new ArrayList<ResponseObject>();

  @XStreamImplicit(itemFieldName="Property")
  List<Properties> properties = new ArrayList<Properties>();

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