如何使用XStream对数据类型进行别名?

时间:2015-01-28 11:22:12

标签: java xstream stax

我想将对象转换为xml,它需要为String数据类型提供别名。例如:

public class ArrayTest
{
   private int id=4;
   public String area[];
   public void setArea(String ar[])
  {
    area = ar;
  }
}

对象到xml转换类就像:

public class Test
{
  public static void main(String args[])
  {
       String area[] = {"ABC","XYZ","PRQ"};
       ArrayTest at = new ArrayTest();
       at.setArea(area);
       Xstream stream = new XStream(new staxDriver());
       stream.alias("response",ArrayTest.class);
       System.out.println(stream.toXML(at));
  }
}

我的输出为:

<?xml version="1.0" ?>
<response>
  <id>4</id>
  <area>
    <string>ABC</string>
    <string>XYZ</string>
    <string>PRQ</string>
  </area>
</response>

但我希望输出为:

<?xml version="1.0" ?>
<response>
  <id>4</id>
  <area>
    <code>ABC</code>
    <code>XYZ</code>
    <code>PRQ</code>
  </area>
</response>

我是XStream的新手,请帮助我

2 个答案:

答案 0 :(得分:1)

您可以使用:

stream.addImplicitArray(ArrayTest.class, "area", "code");

答案 1 :(得分:1)

我认为这可行:

首先为area

添加一个getter
public class ArrayTest {
    private int id = 4;
    private String[] area; 

    public void setArea(String ar[]) {
        area = ar;
    }

    public String[] getArea() { 
        return area;
    }
}

然后添加NamedArrayConverter转换器:

public static void main(String args[]) {
    String area[] = { "ABC", "XYZ", "PRQ" };
    ArrayTest at = new ArrayTest();
    at.setArea(area);
    XStream stream = new XStream();
    stream.alias("response",ArrayTest.class);
    stream.registerConverter(new NamedArrayConverter(at.getArea().getClass(), null, "code"));
    System.out.println(stream.toXML(at));
}

这是输出:

<response>
  <id>4</id>
  <area>
    <code>ABC</code>
    <code>XYZ</code>
    <code>PRQ</code>
  </area>
</response>