实现struts2中的 ModelDriven接口时update的问题
有关ModelDriven的使用原理，参见http://blog.csdn.net/li_tengfei/archive/2010/12/25/6098145.aspx
public class ContactAction extends ActionSupport implements ModelDriven<Contact> { private static final long serialVersionUID = -2318419860549968641L; private TextProvider textProvider; private UserServices userServices; private ContactServices contactServices; private int cid; private Contact contact = new Contact(); @SkipValidation public String loadForUpdate() { Contact acontact = contactServices.read(contact.getId()); BeanUtils.copyProperties(acontact, contact); return Action.SUCCESS; }