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。