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要自定义XStream序列化,您可以实现com.thoughtworks.xstream.converters.Converter
接口并覆盖marshal()
和unmarshal()
方法。这样可以自定义对象的序列化和反序列化逻辑。
下面是一个示例,展示如何自定义序列化一个Person
对象:
import com.thoughtworks.xstream.converters.Converter; import com.thoughtworks.xstream.io.HierarchicalStreamWriter; import com.thoughtworks.xstream.io.HierarchicalStreamReader; import com.thoughtworks.xstream.converters.MarshallingContext; import com.thoughtworks.xstream.converters.UnmarshallingContext; public class PersonConverter implements Converter { @Override public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) { Person person = (Person) source; writer.startNode("name"); writer.setValue(person.getName()); writer.endNode(); writer.startNode("age"); writer.setValue(String.valueOf(person.getAge())); writer.endNode(); } @Override public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) { reader.moveDown(); String name = reader.getValue(); reader.moveUp(); reader.moveDown(); int age = Integer.parseInt(reader.getValue()); reader.moveUp(); return new Person(name, age); } @Override public boolean canConvert(Class type) { return type.equals(Person.class); } }
在上面的示例中,PersonConverter
实现了Converter
接口,并覆盖了marshal()
和unmarshal()
方法来自定义Person
对象的序列化和反序列化逻辑。canConvert()
方法指定了该转换器可以处理哪种类型的对象。
然后,您可以将PersonConverter
注册到XStream实例中,如下所示:
XStream xstream = new XStream(); xstream.registerConverter(new PersonConverter());
现在,当您序列化或反序列化Person
对象时,XStream将使用您自定义的转换器来处理对象。