使用XStream对一个Set的内容进行别名 [英] Aliasing contents of a Set using XStream

问题描述

我在XStream中有别名混淆的问题。

I have a problem with aliasing in XStream.

我有一组String项目，我想像这样序列化为XML：

I've got a set of String items that I would like to serialize to XML like this:

<types>
  <type>abc</type>
  <type>def</type>
</types>

但是，我似乎找不到一个很好的方法来解决这个问题。我试过一个字符串列表，但后来我最终以

However, I can't seem to find a good way to solve this. I've tried a list of strings, but then I end up with

<types>
  <string>abc</string>
  <string>def</string>
</types>

我也试过把String放在一个简单的类中，

I've also tried putting the String in a simple class, but then I get

<types>
  <type>
    <aType>abc</aType>
  </type>
</types>

其中< type> 的自定义类，而aType是类中的属性，即我使用这种方法获得一个级别太多。我如何去消除额外的级别或者用自定义标签名替换< string> ？

where <type> is the alias of the custom class, and aType is the attribute in the class, i.e I get one level too much using this approach. How would I go about eliminating the extra level or simply substituting the <string> with a custom tag name?

推荐答案

您需要别名列表和列表中的项目。

You will need to alias both the List and the items in the list.

List<String> types = new ArrayList<String>();
types.add("abc");
types.add("def");

XStream xstream = new XStream();
xstream.alias("types", List.class);
xstream.alias("type", String.class);
System.out.println(xstream.toXML(types));

会导致

<types>
  <type>abc</type>
  <type>def</type>
</types>

这篇关于使用XStream对一个Set的内容进行别名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！