<s:hidden name="XX" label="YY" value%{属性}/>

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Mapper映射里的代码:

<mapper namespace="bkrd">

     <select id="selectByBookReader" parameterType="String" resultType="bkreader">        
         select card,name,password,idcard,sex from READER where card=#{card}
    </select>

这是action中的代码:

public String updateData(){
  SqlSession session=null;
  MyBatisSessionFactory factory=new MyBatisSessionFactory();
  try{
   session =factory.createSqlSession();
   card=ServletActionContext.getRequest().getParameter("card");
   
   //System.out.println(card);
   BookReader bkrder=(BookReader) session.selectOne("bkrd.selectByBookReader",card);
   ActionContext.getContext().getSession().put("bkrder", bkrder);
   
   session.commit();
  }catch(Exception e){
   e.printStackTrace();
  }finally{
   session.close();
  }
  return "update1";
 }

这是在jsp页面中显示:

<s:form action="update" method="post">
    <table border="1" width="60%" cellpadding="0" cellspacing="0" bgcolor="#99ccff">
       
       <s:iterator value="#session.bkrder">
              <s:hidden name="card" label="卡号" value="%{card}"/>
              姓&nbsp;&nbsp;名:<s:textfield name="name" label="姓名" value="%{name}"/><br>
              密&nbsp;&nbsp;码:<s:textfield name="password" label="密码" value="%{password}"/><br>
              身份证:<s:textfield name="idcard" label="身份证" value="%{idcard}"/><br>
              性&nbsp;&nbsp;别:<s:textfield name="sex" label="性别" value="%{sex}"/>
      </s:iterator>
      
    </table>
    <s:submit value="更新"/>
</s:form>

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