📄 delete.jsp
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<%@ page isThreadSafe="false" import="java.util.*, email.Map" errorPage="error.jsp" %>
<jsp:useBean id="mymap" scope="session" class="email.Map" />
<jsp:setProperty name="mymap" property="name" param="name" />
<!-- tags the JSP page so that we can display
the right exception message later -->
<% mymap.setAction( "delete" ); %>
<html>
<head><title> Email Finder </title></head>
<body bgcolor="#ffffff" background="background.gif" link="#000099">
<form method="get">
<table border="0" cellspacing="0"
cellpadding="5">
<tr>
<td width="120"> </td>
<td align="right">
<h1>Email Finder</h1> </td>
</tr>
<tr>
<td width="120" align="right"><b>Name</b></td>
<td align="left"> <input type="text" name="name" size="35"> </td>
</tr>
<tr>
<td width="120"> </td>
<td align="right">
Please enter a name you would like to delete.
</td>
</tr>
<tr>
<td width="120"> </td>
<td align="right">
The map file has <font color="blue"> <%= mymap.size() %></font>
entries.
</td>
</tr>
<tr>
<td width="120"> </td>
<td align="right"> <input type="submit" value="Delete"> </td>
</tr>
<!-- 显示名字（name）和Email地址, 然后
将它们从映射（map）文件中删除 -->
<% if ( request.getParameter( "name" ) != null ) { %>
<%@ include file="deleteresponse.jsp" %>
<%
mymap.remove( request.getParameter("name") ) ;
}
%>
<tr>
<td width="120"> </td>
<td align="right">
<a href="email.jsp">Add</a> |
<a href="lookup.jsp">Lookup</a>
</td>
</tr>
</table> </body>
</html>
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