java - 选择要序列化的属性

Question

在我的程序中，我需要将对象存储在 XML 中。但我不希望所有属性都序列化为 xml。我该怎么做？

public class Car implements ICar{
//all variables has their own setters and getters
private String manufacturer;
private String plate;
private DateTime dateOfManufacture;
private int mileage;
private int ownerId;
private Owner owner; // will not be serialized to xml
.....
}


//code for serialize to xml
public static String serialize(Object obj)
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    XMLEncoder encoder = new XMLEncoder(baos);
    encoder.writeObject(obj);
    encoder.close();        
    return baos.toString();
}

Answer 1

查看this link 。这是一个更新的示例。

BeanInfo info = Introspector.getBeanInfo(Car.class);
PropertyDescriptor[] propertyDescriptors = info.getPropertyDescriptors();
for (int i = 0; i < propertyDescriptors.length; ++i) {
    PropertyDescriptor pd = propertyDescriptors[i];
    if (pd.getName().equals("dateOfManufacture")) {
        pd.setValue("transient", Boolean.TRUE);
    }
}