📄 welcome.jsp
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<%@page contentType = "text/html;charset = gb2312" %>
<%
if(session.getAttribute("adlogin")!=null){
String adlogin = (String)session.getAttribute("adlogin");
if(!adlogin.endsWith("yes")){
response.sendRedirect("../admin/login.jsp?errMsg=weidenglu" );
}
}else{
response.sendRedirect("../admin/login.jsp?errMsg=weidenglu" );
}
%>
<html>
<head><title>管理界面</title></head>
<body>
<h1><blockquote>选择要进行的操作</blockquote></h1>
<table width = 500 height = 300 align = "left">
<tr><th align = left>书籍管理</th><th align = left>用户管理</th><th align = left>阅览证挂失/解挂</th></tr>
<tr></tr>
<tr>
<td><a href = ./addbook.jsp> <h3> 添加书籍</h3></a><a href = ./searchBook.jsp><h3>查找书籍</h3></a></td>
<td><a href = ./addreader.jsp><h3>添加用户</h3></a><a href = ./searchreader.jsp><h3>查找用户</h3></a></td>
<td><a href = ./guashi.jsp><h3>阅览证挂失</h3></a><a href = ./jiegua.jsp><h3>解除挂失</h3></a></td>
</tr>
</table>
<br>
<table width = 350 height = 300 align = "left">
<tr><td></td><td><a href = ./chaoqi.jsp><h3>列出所有欠费（有超期图书）用户</h3></a></td><td><a href = ./logout.jsp><h3>退出</h3></a></td></tr>
</table>
</body>
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