import com.thoughtworks.xstream.MarshallingStrategy; //导入依赖的package包/类
@Override
public void setMarshallingStrategy(MarshallingStrategy marshallingStrategy)
{
	this.marshallingStrategy = marshallingStrategy;
	super.setMarshallingStrategy(marshallingStrategy);
}
 

import com.thoughtworks.xstream.MarshallingStrategy; //导入依赖的package包/类
/**
 * @param writer
 * @param includeHistory
 * @param session
 * @throws DataAccessException
 * @throws HibernateException
 */
private void writeObjects(final Writer writer, final boolean includeHistory, final Session session, final boolean preserveIds)
    throws DataAccessException, HibernateException
    {
  // Container für die Objekte
  final List<Object> all = new ArrayList<Object>();
  final XStream stream = initXStream(session, true);
  final XStream defaultXStream = initXStream(session, false);

  session.flush();
  // Alles laden
  final List<Class< ? >> entities = new ArrayList<Class< ? >>();
  entities.addAll(HibernateEntities.instance().getOrderedEntities());
  entities.addAll(HibernateEntities.instance().getOrderedHistoryEntities());
  for (final Class< ? > entityClass : entities) {
    final String entitySimpleName = entityClass.getSimpleName();
    final String entityType = entityClass.getName();
    if (includeHistory == false && entityType.startsWith("de.micromata.hibernate.history.") == true) {
      // Skip history entries.
      continue;
    }
    List< ? > list = session.createQuery("select o from " + entityType + " o").setReadOnly(true).list();
    list = (List< ? >) CollectionUtils.select(list, PredicateUtils.uniquePredicate());
    final int size = list.size();
    log.info("Writing " + size + " objects");
    for (final Iterator< ? > it = list.iterator(); it.hasNext();) {
      final Object obj = it.next();
      if (log.isDebugEnabled()) {
        log.debug("loaded object " + obj);
      }
      Hibernate.initialize(obj);
      final Class< ? > targetClass = HibernateProxyHelper.getClassWithoutInitializingProxy(obj);
      final ClassMetadata classMetadata = session.getSessionFactory().getClassMetadata(targetClass);
      if (classMetadata == null) {
        log.fatal("Can't init " + obj + " of type " + targetClass);
        continue;
      }
      // initalisierung des Objekts...
      defaultXStream.marshal(obj, new CompactWriter(new NullWriter()));

      if (preserveIds == false) {
        // Nun kann die ID gelöscht werden
        classMetadata.setIdentifier(obj, null, EntityMode.POJO);
      }
      if (log.isDebugEnabled()) {
        log.debug("loading evicted object " + obj);
      }
      if (this.ignoreFromTopLevelListing.contains(targetClass) == false) {
        all.add(obj);
      }
    }
  }
  // und schreiben
  try {
    writer.write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
  } catch (final IOException ex) {
    // ignore, will fail on stream.marshal()
  }
  log.info("Wrote " + all.size() + " objects");
  final MarshallingStrategy marshallingStrategy = new ProxyIdRefMarshallingStrategy();
  stream.setMarshallingStrategy(marshallingStrategy);
  stream.marshal(all, new PrettyPrintWriter(writer));
    }
 

import com.thoughtworks.xstream.MarshallingStrategy; //导入依赖的package包/类
public void setMarshallingStrategy(MarshallingStrategy marshallingStrategy) {
    this.marshallingStrategy = marshallingStrategy;
}
 

import com.thoughtworks.xstream.MarshallingStrategy; //导入依赖的package包/类
public void setMarshallingStrategy(MarshallingStrategy marshallingStrategy) {
	this.marshallingStrategy = marshallingStrategy;
}
 

import com.thoughtworks.xstream.MarshallingStrategy; //导入依赖的package包/类
/**
 * Set a custom XStream {@link MarshallingStrategy} to use.
 * @since 4.0
 */
public void setMarshallingStrategy(MarshallingStrategy marshallingStrategy) {
	this.marshallingStrategy = marshallingStrategy;
}