XStream不会从XML转换值

Question

我正在尝试将XML文件转换为我的2个类，如下所示：

@XStreamAlias("citizenship")
class PersonCitizenship {
    private String citizenship;
}
@XStreamAlias("person")
class Person {
    private Set<PersonCitizenship> citizenships;
    private String citizenship;
    private String citizenshipType;
}

我的XML文件看起来像：

<?xml version="1.0" encoding="UTF-8"?>
<person>
    <citizenships>
        <citizenship>032</citizenship>
    </citizenships>
    <citizenship>123</citizenship>
    <citizenshipType>2</citizenshipType>
</person>

转换后，我得到Person对象与以下数据：citizenshipType = 2; citizenship = 123和Set的citizenships在null场上有citizenship值。为什么会这样？

Answer 1

你需要添加：

@XStreamImplicit
private Set<PersonCitizenship> citizenships;

否则XStream需要这样的东西：

<person>
  <citizenships>
    <citizenship>
      <citizenship>032</citizenship>
    </citizenship>
  </citizenships>
  <citizenship>123</citizenship>
  <citizenshipType>2</citizenshipType>
</person>