WebRoot/admin/xuanxiuke2.jsp
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<%@ page contentType="text/html; charset=GBK" %>
<%@ page import="java.sql.*" %>
<%@ page language="java" %>
<%@ page import="java.util.*" %>
<%@ page import="proj112.*" %>
<jsp:useBean id="a" scope="page" class="proj112.dbconn"/>
<html>
<head>
<title>
<% request.setCharacterEncoding("gb2312"); %>
</title>
</head>
<body bgcolor="#ffffff">
<%
String kechenghao=request.getParameter("kechenghao");
int totalrecord = 0;
String sql="";
String sql1="";
String sql2="";
String name="";
sql="SELECT * FROM kecheng where kcm='"+kechenghao+"'";
ResultSet rs=a.executeQuery(sql);
if(rs.next())
{
name=rs.getString("kcm");
%>
<br> 课程名:<font color="red"><%=name %></font>,选修该课程的学生如下:<br><br><hr><br>
<% sql1 = "SELECT count(*) as recordcount FROM xuanke where kch =(select id from kecheng where kcm='"+kechenghao+"')";
ResultSet bs = a.executeQuery(sql1);
if (bs.next())
{
totalrecord = bs.getInt("recordcount");
if(totalrecord!=0){
sql2="SELECT * FROM xuanke,student where xuanke.stu_id=student.stu_id and xuanke.kch=(select id from kecheng where kcm='"+kechenghao+"')";
ResultSet ts=a.executeQuery(sql2);
%>
<p align="center">
<table width="100%" cellspacing="0" cellpadding="4" rules="all" bordercolor="#CC9966" border="1" id="dg_rxkb" style="background-color:White;border-color:#CC9966;border-width:1px;border-style:None;width:100%;border-collapse:collapse;">
<tr>
<td align="center"><font color="#6633CC">姓名</font></td>
<td align="center"><font color="#6633CC">学号</font></td>
<td align="center"><font color="#6633CC">性别</font></td>
<td align="center"><font color="#6633CC">专业</font></td>
<td align="center"><font color="#6633CC">联系电话</font></td>
</tr>
<%
while(ts.next()){%>
<tr>
<td align="center"><%=ts.getString("stu_id")%></td>
<td align="center"><%=ts.getString("stu_name")%></td>
<td align="center"><%=ts.getString("sex")%></td>
<td align="center"><%=ts.getString("zhuanye")%></td>
<td align="center"><%=ts.getString("tel")%></td>
</tr>
<%} %>
</table><br >
<center>
选修该课程的人数为: <input type="text" value="<%=totalrecord%>" size="2" align="right" readonly="readonly"> 人
</center>
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