java xstream自定义序列化

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筋斗云
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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()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()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。

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