Jsp/Servlet

开发平台：
VBScript

chakan2.jsp~4~：源码内容
							<%@ 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>
chakan1_2
</title>
</head>
<body bgcolor="#ffffff">
   <%
       String kechenghao=request.getParameter("kechenghao");
       int totalrecord = 0;
       String sql="";
       String sql1="";
       String sql2="";
       String name="";
       sql="SELECT * FROM chengji where 课程号='"+kechenghao+"'";
       ResultSet rs=a.executeQuery(sql);
 if(rs.next())
   {
     name=rs.getString("课程名");
     %>
     <br> 课程号：<%=kechenghao %>&nbsp;&nbsp; 课程名：<%=name %>，选修该课学生成绩如下：<br><br><hr><br><br>
     <%  sql1 = "SELECT count(*) as recordcount FROM 成绩关联 where 课程号='"+kechenghao+"'";
     ResultSet bs = a.executeQuery(sql1);
     if (bs.next())
     {
       totalrecord = bs.getInt("recordcount");
       if(totalrecord!=0){
         sql2="SELECT * FROM student,成绩关联 where student.stu_id=成绩关联.stu_id and 成绩关联.课程号='"+kechenghao+"'";
         ResultSet ts=a.executeQuery(sql2);
         %>
         <p align="center">
           <table width="500" cellpadding=3 cellspacing=0 align=center border=1 bordercolor="#FFCCCC" >
             <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">成绩</font></td>
               <td align="center"><font color="#6633CC">重修成绩</font></td>
             </tr>
             <%
             while(ts.next()){%>
             <tr>
               <td align="center"><%=ts.getString(1)%></td>
               <td align="center"><%=ts.getString(2)%></td>
               <td align="center"><%=ts.getString(4)%></td>
               <td align="center"><%=ts.getString(24)%></td>
               <td align="center"><%=ts.getString(25)%></td>
             </tr>
             <%} %>
           </table><br ><hr><br>
         <center>
           该基础课有成绩的人数为：&nbsp;&nbsp;<input type="text" value="<%=totalrecord%>" size="2" align="right" readonly="readonly">&nbsp;人
         </center>
           <%}else
           {%>
           <script language="javascript">
           alert("没有选修这门课程的学生");
           history.go(-1);
           history.go(0);
           </script>
           <%}
           }else
           {%>
           <script language="javascript">
           alert("没有选修这门课程的学生");
           history.go(-1);
           history.go(0);
           </script>
           <%}
           }
   else
     {%>
     <script language="javascript">
     alert("没有你输入的课程号,请重新输入");
     history.go(-1);
     history.go(0);
     </script>
   <%}
      %>
</body>

						