如何使用XStream从xml标记中删除空间？

Question

I have the xml below that has a number value

<detalhe>
  <numLinha>1048  </numLinha>
</detalhe

the tag numLinha will be converted to a number attibute in java, however i receive the folow message because there are spaces at the end of tag:

Exception in thread "main"  
com.thoughtworks.xstream.converters.ConversionException: For input string "1048                    "

@XStreamAlias("detalhe")
public class BodyDetail implements Serializable {

   private static final long serialVersionUID = -1000785985130865301L;

   @XStreamAlias("numLinha")
   private Integer lineNumber;
}

Answer 1

I solve my problem with a custom converter of Integer Type.

1. First i created the converter:

    package converter; import com.thoughtworks.xstream.converters.Converter; import com.thoughtworks.xstream.converters.MarshallingContext; import com.thoughtworks.xstream.converters.UnmarshallingContext; import com.thoughtworks.xstream.io.HierarchicalStreamReader; import com.thoughtworks.xstream.io.HierarchicalStreamWriter; public class IntegerConverter implements Converter { @SuppressWarnings("rawtypes") @Override public boolean canConvert(Class clazz) { return clazz.equals(Integer.class); } @Override public void marshal(Object object, HierarchicalStreamWriter writer, MarshallingContext context) { } @Override public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) { String text = (String)reader.getValue(); Integer number = Integer.parseInt(text.trim()); return number; } } 

2. I registered the converter:

     public class XMLRead { public static void main(String[] args) { XStream xStream = new XStream(); xStream.registerConverter(new IntegerConverter()); } }