最原始的编程方式，业务逻辑混杂在html中
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ page import="java.sql.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>mldn高端java培训</title>
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%!
//定义数据库驱动程序
public static final String DBDRIVER="com.mysql.jdbc.Driver";
//数据库连接地址
public static final String DBURL="jdbc:mysql://localhost:3306/mldn";
public static final String DBUSER="root";
public static final String DBPASS="root";
%>
<%
Connection conn=null;
PreparedStatement pstmt=null;
ResultSet rs=null;
%>
<%
try{
Class.forName(DBDRIVER);
conn=DriverManager.getConnection(DBURL,DBUSER,DBPASS);//取得数据库连接
String sql="SELECT empno,ename,job,sal,hiredate FROM emp";
pstmt=conn.prepareStatement(sql);
rs=pstmt.executeQuery();
%>
<center>
<table border="1" width="80%">
<tr>
<td>雇员编号</td>
<td>雇员姓名</td>
<td>雇员工作</td>
<td>雇员工资</td>
<td>雇佣日期</td>
</tr>
<%
while(rs.next()){
int empno=rs.getInt(1);
String ename=rs.getString(2);
String job=rs.getString(3);
float sal=rs.getFloat(4);
java.util.Date date=rs.getDate(5);
%>
<tr>
<td><%=empno%></td>
<td><%=ename%></td>
<td><%=job%></td>
<td><%=date%></td>
<td><%=sal%></td>
</tr>
<%
}
%>
</table>
</center>
<%
}catch(Exception e){
System.out.println(e);
}finally{
rs.close();
pstmt.close();
conn.close();
}
%>
</body>
</html>