controller的代码如下：
@RequestMapping(value = "/selectList.do", method = RequestMethod.POST)
public String selectList(HttpSession session, @ModelAttribute("e") User e,HttpServletRequest request) throws Exception {
List list = userService.selectList(e);
request.setAttribute("list",list);
return "manage/user/selectList";
}
selecList.jsp中代码如下：
<%@ page import="com.liwc.liwcshop.web.bean.User" %>
<!-- END HEAD -->
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ include file="/manage/top.jsp"%>
<div class="page-container">
<div class="page-sidebar-wrapper">
<%@ include file="/manage/left.jsp"%>
</div>
<div class="page-content-wrapper">
<div class="page-content">
<%@ include file="/manage/save.jsp"%>
<%@ include file="/manage/theme.jsp"%>
<div id="main-content">
<form action="<%=basePath%>user/selectList.do" method="post" theme="simple">
<button method="<%=basePath%>user/selectList" class="btn btn-primary" id="btnSearch" class="btn btn-primary" table-id="dataTables-example" >
<i class="icon-search icon-white"></i> 查询
</button>
<a href="<%=basePath%>user/toAddUser.do" class="btn btn-primary">
<i class="icon-plus-sign icon-white"></i> 添加
</a>
<table class="table table-hover" id="datatable">
<tr style="background-color: #dff0d8">
<th style="display: none;">id</th>
<th>帐号</th>
<th>创建时间</th>
<th>权限</th>
<th>状态</th>
<th nowrap="nowrap">操作</th>
</tr>
<c:forEach var="code" items="${requestScope.list}">
<tr>
<th style="display: none;">${code.id}</th>
<th>${code.username}</th>
<th>${code.createtime}</th>
<th>${code.role_name}</th>
<th>
<c:if test='${code.status=="y"}'><img src="<%=basePath%>resource/images/action_check.gif"></c:if>
<c:if test='${code.status=="n"}'><img src="<%=basePath%>resource/images/action_delete.gif"></c:if>
</th>
<th><a href="<%=basePath%>user/toUpdateUser.do?id=${code.id}">编辑</a>
<c:if test='${code.status=="y"}'>
<a href="<%=basePath%>user/updatestatus.do?id=${code.id}">禁用</a>
</c:if>
<c:if test='${code.status=="n"}'>
<a href="<%=basePath%>user/updatestatus.do?id=${code.id}">启用</a>
</c:if>
</th>
</tr>
</c:forEach>
</table>
</form>
</div>
</div>
</div>
</div>
<%@ include file="/manage/bottom.jsp"%>
</html>
我怎么使打开页面的时候，使得自动的从数据库中查询数据呢？
