//4修改用户密码、

    public String updateUserPassword() throws Exception{

        Map session=ActionContext.getContext().getSession();

        User user1=(User) session.get("user");

        //user1.getPassword()获取的是数据库密码。||pwd1获取的是jsp输入密码

        if (user1.getPassword().equals(getPwd1())) {

            user1.setPassword(password);

            userService.addOrUpdateUser(user1);

            session.remove("user");//它的作用是移除jsp页面输入的数据

            return SUCCESS;

        }else{

            Map request= (Map) ActionContext.getContext().get("request");

            request.put("msg", "旧密码错误");

            return ERROR;

        }

    }    

    <s:form action="updateUserDetail.action" method="post">

    <!--下面的"%"难  -->

    <s:textfield label="真实姓名" value="%{#session.user.userdetail.truename}" name="userdetail.truename"></s:textfield>

    <s:radio list="#{1:'男',0:'女' }" label="性别" value="%{#session.user.userdetail.xb}" name="userdetail.xb"></s:radio>

    <tr><td></td><td>

    <s:textfield label="出生日期" value="%{#session.user.userdetail.csrq}" name="userdetail.csrq"></s:textfield>

    </td>

    </tr>

    <s:textfield label="E-mail" name="userdetail.email" value="%{#session.user.userdetail.email}"></s:textfield>

   <s:textfield label="手机" name="userdetail.phone" value="%{#session.user.userdetail.phone}"></s:textfield>

   <s:textfield label="地址" name="userdetail.address" value="%{#session.user.userdetail.address}"></s:textfield>

   <s:submit value="确认"></s:submit>

    </s:form>

    //org.hibernate.SessionFactory一般继承hibernate

    private SessionFactory sessionFactory;

        //它们在同一个类中，下面举例一个方法

    public List getNewFlower() {

        Session session = sessionFactory.openSession();

        Transaction tx = session.beginTransaction();

        // 为什么这么写。因为select * 被hibernate添加写了

        Query query = session.createQuery("from Flower order by flowerid desc");

        query.setFirstResult(0);

        query.setMaxResults(4);

        List flowers = query.list();

        tx.commit();

        session.close();

        return flowers;

    }