📄 score_query.jsp
字号:
<%@ page language="java" import="java.sql.*" contentType="text/html;charset=gb2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'check.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
查询主页 <br>
<jsp:useBean id="test1" scope="application" class="test.Connect_db"/>
<%
String user_id=request.getParameter("user_id");
Connection con=test1.getConnection();
ResultSet rs=null;
String sql1="select course.cname,book.book_name,course.credit_hour,selection.score,selection.mark from student,course,selection,book where student.s_id=selection.s_id and course.c_id=selection.c_id and course.book_id=book.book_id and student.s_id=?";
String sql2="select credit_hour from student where s_id=?";
PreparedStatement ps1=con.prepareStatement(sql1);
ps1.setString(1,user_id);
rs=ps1.executeQuery();
%>
<TABLE border="1">
<TR>
<TD>课程名</TD>
<TD>书名</TD>
<TD>学分</TD>
<TD>成绩</TD>
<TD>选／必修</TD>
</TR>
<% while(rs.next()){ %>
<TR>
<TD><%=rs.getString(1)%></TD>
<TD><%=rs.getString(2)%></TD>
<TD><%=rs.getFloat(3)%></TD>
<TD><%=rs.getInt(4)%></TD>
<TD><%=rs.getString(5)%></TD>
</TR>
<% }//while
%>
</TABLE>
<% PreparedStatement ps2=con.prepareStatement(sql2);
ps2.setString(1,user_id);
ResultSet rs2=ps2.executeQuery();
if(rs2.next())
{ out.println("你已有的学分为：");
out.print(rs2.getInt(1));
}
con.close();
%>
</body>
</html>
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