利用XStream将List转为xml后指定String的别名

public class Test {
public List<String> tags = new ArrayList<String>();
public List<String> notags = new ArrayList<String>();
public Test(String tag, String tag2) {
tags.add(tag); tags.add(tag2);
notags.add(tag); notags.add(tag2);
}
public static void main(String[] args) {
Test test = new Test("foo", "bar");
XStream xstream = new XStream();

ClassAliasingMapper mapper = new ClassAliasingMapper(xstream.getMapper());
mapper.addClassAlias("tag", String.class);
xstream.registerLocalConverter(
Test.class,
"tags",
new CollectionConverter(mapper)
);

System.out.println(xstream.toXML(test));
}

打印结果：
<tags>
<tag>foo</tag>
<tag>bar</tag>
</tags>
<notags>
<string>foo</string>
<string>bar</string>
</notags>