要求：
在Servlet中创建一个List<用户JavaBean>对象，在List集合对象中存放多个用户JavaBean对象，并将该List集合对象存放在request对象中，最后跳转到users页面；在users页面使用JSTL和EL将List对象取出来，并以表格的形式展示出List中的每个用户信息。
Servlet.java
package cuit;
import java.util.List;
import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/Servlet")
public class Servlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public Servlet() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
List<bean> list = new ArrayList<bean>();
bean a= new bean();
a.setNumBer("1");
a.setUserName("gyn");
a.setPassWord("123");
list.add(a);
request.getSession().setAttribute("users", list);
request.getRequestDispatcher("/users.jsp").forward(request, response);
}
public void doPost(HttpServletRequest req,HttpServletResponse resp)
throws ServletException,IOException{
this.doGet(req,resp) ;
}
}
bean.java
package cuit;
public class bean implements java.io.Serializable
{
private static final long serialVersionUID = 1L;
private String numBer ;
private String userName;
private String passWord ;
public String getNumBer() {
return numBer;
}
public void setNumBer(String numBer) {
this.numBer = numBer;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassWord() {
return passWord;
}
public void setPassWord(String passWord) {
this.passWord = passWord;
}
}
users.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page contentType="text/html;charset=gbk" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<title>首页</title>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link href="css/bootstrap.min.css" rel="stylesheet">
<!--[if lt IE 9]>
<script src="//html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link href="css/main1.css" rel="stylesheet">
</head>
<body>
<!-- Wrap all page content here -->
<div id="wrap">
<!-- Fixed navbar -->
<!-- 导航栏 开始-->
<div class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Project</a>
</div>
<div class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">首页</a></li>
<li><a href="admin.jsp">管理页面</a></li>
<li><a href="#">退出</a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
<!-- 导航栏 结束-->
<!-- Begin page content -->
<div class="container">
<div class="page-header">
<h1>用户列表</h1>
</div>
<div class="table-responsive">
<table class="table table-striped">
<thead>
<tr>
<th>序号</th>
<th>用户名</th>
<th>密码</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach var="a" items="${users} ">
<tr>
<td>${a.numBer }</td>
<td>${a.userName }</td>
<td>${a.passWord }</td>
<td><a href="#">编辑</a> <a href="#">删除</a></td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
<div id="footer">
<div class="container">
<p class="text-muted credit">网站访问次数：</p>
</div>
</div>
<!-- script references -->
<script type='text/javascript' src="js/jquery-1.9.1.min.js"></script>
<script type='text/javascript' src="js/bootstrap.min.js"></script>
</body>
</html>
在myeclipse上运行时，会报错，错误提示为：
Property 'numBer' not found on type java.lang.String
经过数次尝试都没有改对，请问要怎么修改呢？
