📄 example5_3.jsp
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<%@page contentType="text/html;charset=gb2312" %>
<%@page import="java.sql.*" %>
<html>
<body>
<%
String name,number;
int math,physics,english;
Connection con;
Statement sql;
ResultSet rs;
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcdriver");
}catch(ClassNotFoundException e){
}
try{
con=DriverManager.getConnection("jdbc:odbc:pubs","","");
sql=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);
rs=sql.executeQuery("select * from students");
rs.last();
int lownumber=rs.getRow();
out.print("该表共有"+lownumber+"条记录");
out.print("<br>现在逆序输出记录：");
out.print("<Table Border>");
out.print("<tr>");
out.print("<TH width=100>"+"学号");
out.print("<TH width=100>"+"姓名");
out.print("<TH width=50>"+"数学成绩");
out.print("<TH width=50>"+"英语成绩");
out.print("<TH width=50>"+"物理成绩");
out.print("</tr>");
rs.afterLast();
while(rs.previous()){
out.print("<tr>");
out.print("<TD>"+rs.getString(1)+"</TD>");
out.print("<TD>"+rs.getString(2)+"</TD>");
out.print("<TD>"+rs.getInt("数学成绩")+"</TD>");
out.print("<TD>"+rs.getInt("英语成绩")+"</TD>");
out.print("<TD>"+rs.getInt("物理成绩")+"</TD>");
out.print("</tr>");
}
out.print("</Table>");
out.print("单独输出第5条记录<br>");
rs.absolute(5);
number=rs.getString(1);
out.print(number+",");
name=rs.getString(2);
out.print(name+",");
math=rs.getInt("数学成绩");
out.print(math+",");
english=rs.getInt("英语成绩");
out.print(english+",");
physics=rs.getInt("物理成绩");
out.print(physics+"。");
con.close();
}catch(SQLException ee){
}
%>
</body>
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