jsp中出现the local variable zhang is never read求大神指教
<%@page contentType="text/html;charset=gb2312" %>
<%@page import="st.Student" %>
<html>
  <body bgcolor="yellow">
    <Form Action="" Method="post">  
    	<p>输入学生的姓名:
    	<input type="text" name="name">
    	<p>输入学生的学号:
    	<input type="text" name="number">
    	<p>输入学生的身高:
    	<input type="text" name="height">
    	<p>输入学生的体重:
    	<input type="text" name="weight">
    	<br>
    	<input type="submit" name="提交">
    </Form>     
    <jsp:useBean id="zhang" class="Student" scope="page"/>     
    <jsp:setProperty name="zhang" property="name" param="name"/>
    <p>名字是:
    <jsp:getProperty name="zhang" property="name"/>
    <jsp:setProperty name="zhang" property="number" param="number"/>
    <p>学号是:
    <jsp:getProperty name="zhang" property="number"/>
    <jsp:setProperty name="zhang" property="height" param="height"/>
    <p>身高是:
    <jsp:getProperty name="zhang" property="height"/>
    <jsp:setProperty name="zhang" property="height" param="weight"/>
    <p>体重是:
    <jsp:getProperty name="zhang" property="weight"/>
   </body>
</html>
------解决方案--------------------
<jsp:useBean id="zhang" class="st.Student" scope="page"/>
------解决方案--------------------
这是什么代码。name全是zhang,param应该改成value
<jsp:useBean id="zhang" class="Student" scope="page">
 <jsp:setProperty name="name" property="id" value="name"/>
</jsp:userBean>