📄 delete.jsp
字号:
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.io.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>删除信息</title>
</head>
<script language="javascript">
function check(){//检查有无信息可删除
if(document.form1.sel.value==""||document.form1.sel.value==null){
alert("没有信息可删除，请关闭本页面！");
return false;
}
}
</script>
<body>
<table width="100%" height="100%" border="1">
<form method="POST" name="form1" action="ok_delete.jsp" onsubmit="return check()">
<tr>
<td height="33" bgcolor="#00CCFF"><div align="center">
<h1>删除教学资源信息</h1>
</div></td>
</tr>
<tr>
<td height="22" > <div align="left">
<%
try{
String address = application.getRealPath("sourceofteach");
RandomAccessFile ct = new RandomAccessFile(address+"/"+"content.txt","r");
int i=0;
String record = new String();
while((record = ct.readLine()) != null){
i++;
out.println(i+"--"+new String(record.getBytes("8859_1"))+"<br>");
}
ct.close();
}catch(Exception e){}
%>
</div></td>
</tr>
<tr>
<td height="43%"><p align="center">请输入要删除</p>
<p align="center">信息的序号：
<select name="sel" size=1>
<%@ page language="java" %>
<% try{
String address = application.getRealPath("sourceofteach");
RandomAccessFile ct1 = new RandomAccessFile(address+"/"+"content.txt","r");
int i1=0;
while(ct1.readLine() != null){
i1++;
out.print("<option value=\""+i1+"\">"+i1+"</option>");
}
ct1.close();
}catch(Exception e){}
%>
</select>
</p></td>
</tr>
<tr>
<td height="19%">
<div align="center">
<input name="submit" type="submit" value="删除">
<input name="button" type="button" onClick="javascript:window.close();" value="取消">
</div>
</td>
</tr>
<tr>
<td height="21%"><form action="all_delete.jsp">
<div align="center">
<input name="submit2" type="submit" value="全部清空">
</div>
</form></td>
</tr>
</table>
</body>
</html>
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