要自定義XStream序列化,您可以實現(xiàn)com.thoughtworks.xstream.converters.Converter
接口并覆蓋marshal()
和unmarshal()
方法。這樣可以自定義對象的序列化和反序列化邏輯。
下面是一個示例,展示如何自定義序列化一個Person
對象:
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
實現(xiàn)了Converter
接口,并覆蓋了marshal()
和unmarshal()
方法來自定義Person
對象的序列化和反序列化邏輯。canConvert()
方法指定了該轉(zhuǎn)換器可以處理哪種類型的對象。
然后,您可以將PersonConverter
注冊到XStream實例中,如下所示:
XStream xstream = new XStream();
xstream.registerConverter(new PersonConverter());
現(xiàn)在,當您序列化或反序列化Person
對象時,XStream將使用您自定義的轉(zhuǎn)換器來處理對象。