📄 choose.jsp
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<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>选课</title>
<style type="text/css">
<!--
body,td,th {
font-size: 12px;
}
body {
background-image: url(image/bg_002.gif);
}
-->
</style></head>
<body>
<%
String loginNum=(String)session.getAttribute("lnum");
String name=(String)session.getAttribute("name");
session.setAttribute("lnum",loginNum);
session.setAttribute("name",name);
if(loginNum.equals("1"))
{
Connection conn=null;
Statement stmt=null;
String coId=(String)request.getParameter("choose");
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn=DriverManager.getConnection("jdbc:odbc:xk","sa","");
String sql="insert into choosecourse(coId,sId) values('"+coId+"','"+name+"')";
stmt=conn.createStatement();
stmt.executeUpdate(sql);
stmt.close();
String sql2="update course set cNum=cNum+1 where coId='"+coId+"'";
stmt=conn.createStatement();
stmt.executeUpdate(sql2);
stmt.close();
response.sendRedirect("choosesuccess.jsp");
}
catch(Exception e){out.println("输入有误");
}
}
else
{out.println("请先登陆.....");
out.print("<a href=../index.jsp>登陆页面</a>");
}
%>
</body>
</html>
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