请问一个关于一个表和其他三个表同时保存的问题。

[GOALSTAR]

我要保存一系列信息（savePeopleAction.java），里面的信息保存的时候分别保存在四个表里面（author表与其他三个个表的关系分别是 1:1 , 1:* , *:*），中间部分那里出错。是什么原因。

.public ActionForward save(ActionMapping mapping, ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
if (log.isDebugEnabled()) {
log.debug("Entering 'save' method");
}

// Extract attributes and parameters we will need
ActionMessages messages = new ActionMessages();
PeopleForm peopleForm = (PeopleForm) form;
boolean isNew = ("".equals(peopleForm.getId()) || peopleForm.getId() == null);

PeopleManager mgr = (PeopleManager) getBean("peopleManager");

Author author = new Author();

author.setAlias(peopleForm.getAlias());

//1:1
People people = new People();
people.setCount(peopleForm.getCount());
people.setDate(peopleForm.getDate());
people.setSales(peopleForm.getSales());
people.setSex(peopleForm.getSex());

author.setPeople(people);

//1:*
//List publicationList = new ArrayList();
Publication publication = new Publication();
publication.setBookName(peopleForm.getBookName());
publication.setDataTime(peopleForm.getDataTime());

publication.setAuthor(author);


author.getPublications().add(publication);
//上面那句就出错了，是什么原因啊？
//上面那句就出错了，是什么原因啊？
//上面那句就出错了，是什么原因啊？






//*:*
Work work = new Work();
work.setTyee(peopleForm.getType());

work.getAuthors().add(author);
author.getWorks().add(work);
//author.setPublications(publicationList);

mgr.savePeople(people);

[javaGirlOrBoy]

什么异常也不说！眨帮你看啊

[myth822]

把你的pojo和配置文件贴出来,还有异常

[GOALSTAR]

sorry........错误信息如下：
[appfuse2] ERROR [http-8080-Processor23] DispatchAction.dispatchMethod(299) | Dispatch[/savePeople] to method 'save' returned an exception
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

[GOALSTAR]

pojo和配置文件太多了。那些应该没有问题，主要是我想知道我这么写对不

[GOALSTAR]

UP

[classjava]

你的struts应用中那个地方调用了save的这个方法啊？查一下

[GOALSTAR]

Hibernate中一对多的写法，这样对么？
Publication publication = new Publication();
publication.setBookName(peopleForm.getBookName());
publication.setDataTime(peopleForm.getDataTime());
publication.setAuthor(author);
author.getPublications().add(publication);

[GOALSTAR]

UP