Struts2 修改页面

Struts2 修改页面的显示
Student 实体类:

private Student stu;

	// 转到修页面
	public String toUpdate() {
		stu = service.findById(stu.getId());
		return "update";
	}




修改页面:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>学生信息修改</title>
    <link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/style.css">
	<script type="text/javascript" src="<%=path%>/js/jquery-1.4.2.min.js"></script>
	<script type="text/javascript" src="<%=path%>/js/jquery.validate_pack.js"></script>
	<script type="text/javascript" src="<%=path%>/js/student.js"></script>
  </head>
  
  <body style="text-align:center">
   <form action="<%=request.getContextPath()%>/student_update.action" id="studentUpdateForm"
			method="post">
            <input type="hidden" name="stu.id" value="<s:property value='stu.id'/>"/>
             <input type="hidden" name="currentPage" value="<s:property value='currentPage'/>"/>
                                学生信息修改
			<p>
				<label class="required">
					姓名:
				</label>
				<input type="text" id="name" 
				value="<s:property value='stu.name'/>"
					name="stu.name" />
					<input type="hidden"
				value="<s:property value='stu.name'/>"
					id="stuname" />
				<span id="namespan"></span>
			</p>

			<p>
				<label class="required">
					年龄:
				</label>
				<input type="text" id="chooseone" 
				value="<s:property value='stu.age'/>"
					name="stu.age" />
				<span id="agespan"></span>
			</p>

			<p>
				<label class="required">
					性别:
				</label>
				<input type="text" id="choosetwo"  name="stu.sex" value="<s:property value='stu.sex'/>" />
				<span id="sexspan"></span>
			</p>

			<p>
				<label class="required">
					地址:
				</label>
				<input type="text" id="choosethree"   value="<s:property value='stu.address'/>"
					name="stu.address" />
				<span id="addressspan"></span>
			</p>
			<center>
				<input type="submit" 
					id="send" value="提交" />
					<input type="button" value="返回" onclick="javascript:window.location.href='<%=path%>/student_query.action?currentPage=<s:property value='currentPage'/>'"/>
			</center>
		</form>
  </body>
</html>


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