📄 delete.txt
字号:
<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="java.sql.*" %>
<HTML>
<BODY bgcolor=pink >
<FONT size=3>
<% //获取提交的学号:
String number=request.getParameter("number");
number=number.trim();
if(number==null)
{
number="";
}
byte b[]=number.getBytes("ISO-8859-1");
number=new String(b);
Connection con=null;
Statement sql=null;
ResultSet rs=null;
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
}
catch(ClassNotFoundException event){}
try{
con=DriverManager.getConnection("jdbc:odbc:grade","","");
sql=con.createStatement();
String deleteALL="DELETE FROM students WHERE number"+"="+"'"+number+"'";
sql.executeUpdate(deleteALL); //执行删除操作
%>
<p>删除记录后的表
<%
rs=sql.executeQuery("SELECT * FROM students ORDER BY number ");
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>");
while(rs.next())
{
out.print("<TR>");
String n=rs.getString(1);
out.print("<TD>"+n+"</TD>");
String xingming=rs.getString(2);
out.print("<TD>"+xingming+"</TD>");
int math=rs.getInt(3);
out.print("<TD>"+math+"</TD>");
int english=rs.getInt(4);
out.print("<TD>"+english+"</TD>");
int physics=rs.getInt(5);
out.print("<TD>"+physics+"</TD>");
out.print("</TR>");
}
out.print("</Table>");
con.close();
}
catch(SQLException event)
{
out.print(""+event);
}
%>
</FONT>
</BODY>
</HTML>
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