5
Trong một dòng XML tôi nhận được, tôi có tuyên bố sauDeserialize trống XML yếu tố sử dụng xStream
<user>
<age/>
</user>
mà là để được đưa vào trong một đối tượng mà trông như thế này:
@XStreamAlias("user")
public class User {
public int age = 0;
}
Thật không may, Tôi nhận được ngoại lệ XStream mỗi khi tôi cố đọc XML này, vì thẻ tuổi xml trống:
Exception in thread "main" com.thoughtworks.xstream.converters.ConversionException: For input string: "" : For input string: ""
---- Debugging information ----
message : For input string: ""
cause-exception : java.lang.NumberFormatException
cause-message : For input string: ""
class : java.lang.Integer
required-type : java.lang.Integer
converter-type : com.thoughtworks.xstream.converters.SingleValueConverterWrapper
wrapped-converter : com.thoughtworks.xstream.converters.basic.IntConverter
path : /GoodreadsResponse/user/age
line number : 17
class[1] : fr.riduidel.exporter.goodreads.User
converter-type[1] : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
class[2] : fr.riduidel.exporter.goodreads.GoodreadsResponse
version : null
-------------------------------
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:79)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshallField(AbstractReflectionConverter.java:355)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:306)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:234)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:322)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:234)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1052)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1036)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:921)
Làm cách nào tôi có thể gọi l XStream để xem xét lĩnh vực này là "tùy chọn" hoặc "possibliy không có gì"?