哪位高手能帮我看下为什么抛出这些异常？
代码
<%@ page language="java" import="java.util.*" contentType="text/html; charset=ISO-8859-1"
pageEncoding="GB2312"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<jsp:directive.page import="java.lang.Class"/>
<jsp:directive.page import="java.sql.DriverManager"/>
<jsp:directive.page import="java.sql.Connection"/>
<jsp:directive.page import="java.sql.Statement"/>
<jsp:directive.page import="java.sql.ResultSet"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>SQL Server 2008</title>
</head>
<body topmargin="0">
<%
out.println("hello");
String driverClass="com.microsoft.jdbc.sqlserver.SQLServerDriver";
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=JSP_TEST";
String username="DONGJIN";
String password="dongjin";
try
{
Class.forName(driverClass);
}
catch(ClassNotFoundException e)
{
out.println("------在加载数据库驱动时抛出异常，内容如下：");
e.printStackTrace();
}
Connection conn=DriverManager.getConnection(url,username,password); //建立连接
Statement stmt=conn.createStatement(); //创建连接状态
ResultSet rs=stmt.executeQuery("select * from table1"); //执行select语句
%>
<tr>
<td align="center">
<table width="30%" bordercolor="#00CC66" border="1">
<tr align="center" bgcolor="#FF6633">
<td>编号</td>
&nb
