📄 showall.jsp
字号:
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<html>
<head>
</head>
<body>
<font size='5'>
<%
Connection con = null;
Statement st = null;
ResultSet rs = null;
int num=0;
if(request.getParameter("num").equals(null)){num=0;}
else{num=Integer.parseInt(request.getParameter("num"));}
try {
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
con = DriverManager.getConnection("jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=student", "sa", "");
st = con.createStatement();
String sql="SELECT TOP 3 *FROM course WHERE (number NOT IN (SELECT TOP "+num+" number FROM course ORDER BY number)) ORDER BY number";
rs = st.executeQuery(sql);
%>
<center>
<table bgcolor="pink" border="1">
<tr>
<td>学号</td><td>课程</td><td>成绩</td>
</tr>
<%
while (rs.next()) {
%>
<tr>
<td><%=rs.getInt("number")%></td>
<td><%=rs.getString("course")%></td>
<td><%=rs.getString("score")%></td>
</tr>
<%
}
%>
</table>
</font>
<a href="showall.jsp?num=<%=0%>">首页</a>
<%if(num>=3){%>
<a href="showall.jsp?num=<%=num-3%>"><--</a>
<%}%>
<%if(num<3){%>
<--
<%}%>
<%if(num+3<=13)
{%>
<a href="showall.jsp?num=<%=num+3%>">--></a>
<%}%>
<%if(num+3>13){%>
-->
<%}%>
<a href="showall.jsp?num=<%=13%>">末页</a>
</center>
<%
} catch (Exception e) {
out.print("数据库操作出错:" + e);
} finally {
if (rs != null)
rs.close();
if (st != null)
st.close();
if (con != null)
con.close();
}
%>
</body>
</html>
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