这是一个注册页面如何使用register.jsp.My DB conn.jsp文件在mysql中插入数据，正确执行。但是我的register.jsp文件有错误，请更正我的指出我在哪里我错了吗？
register.jsp
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="com.mysql.jdbc.Statement"%>
<%@page import="com.mysql.jdbc.Connection"%>
<%@page import=" java.sql.SQLException" %>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@include file="db conn.jsp"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
<%
String name=request.getParameter("first");
String abc=request.getParameter("last");
String cde=request.getParameter("user");
String pass=request.getParameter("password");
String confpass=request.getParameter("confirmpass");
String emails=request.getParameter("email");
String months=request.getParameter("month");
String day=request.getParameter("day");
String year=request.getParameter("year");
String gender=request.getParameter("Gender");
String Sql="insert into teacher2(firstname,lastname,username,password,confirmpassword,email,month,day,year,gender) values('"+name+"','"+abc+"','"+cde+"','"+pass+"','"+confpass+"','"+emails+"','"+months+"','"+day+"','"+year+"','"+gender+"')";
rs=st.executeQuery(Sql);
%>
db conn.jsp
<%@page import="com.mysql.jdbc.Connection"%>
<%@page import="com.mysql.jdbc.Statement"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.DriverManager"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
<%@ page import ="java.sql.*" %>
<%
Connection c1 = null;
Statement st = null;
ResultSet rs = null;
Class.forName("com.mysql.jdbc.Driver");
c1 = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/teacher","root", "abcde");
{
System.out.println("Couldn't find the driver!");
System.out.println("Couldn't connect: print out a stack trace and exit.");
System.out.println("We got an exception while creating a statement:" + "that probably means we're no longer connected.");
st = (Statement) c1.createStatement();
System.out.println("Statement Created Successfully");
{
System.out.println("We got an exception while creating a statement:" + "that probably means we're no longer connected.");
}
if (c1!= null) {
System. out.println("Hooray! We connected to the database!");
} else {
System.out.println("We should never get here.");
}}
%>
index.jsp
<form action="register.jsp" autocomplete="on">
<h1> Sign up </h1>
<p>
<label for="firstnamesignup" class="fname" data-icon="u">First Name:</label>
<input id="firstnamesignup" name="first" required="required" type="text" placeholder="First" />
</p>
<p>
<label for="lastnamesignup" class="lname" data-icon="u">Last Name:</label>
<input id="lastnamesignup" name="last" required="required" type="text" placeholder="Last" />
</p>
<p>
<label for="usernamesignup" class="uname" data-icon="u">Username:</label>
<input id="usernamesignup" name="user" required="required" type="text" placeholder="Username" />
</p>
<p>
<label for="passwordsignup" class="youpasswd" data-icon="p">Password:</label>
<input id="passwordsignup" name="password" required="required" type="password" placeholder="Password"/>
</p>
<p>
<label for="passwordsignup_confirm" class="password" data-icon="p">Confirm Password:</label>
<input id="passwordsignup_confirm" name="confirmpass" required="required" type="password" placeholder="Password"/>
</p>
<p>
<label for="emailsignup" class="youmail" data-icon="e" >Email:</label>
<input id="emailsignup" name="email" required="required" type="email" placeholder="example@domain.com"/>
</p>
<p>
<label>Date of Birth:</label>
<select name="month" onChange="changeDate(this.options[selectedIndex].value);">
<option value="na">Month</option>
<option value="1">January</option>
<option value="2">February</option>
<option value="3">March</option>
<option value="4">April</option>
<option value="5">May</option>
<option value="6">June</option>
<option value="7">July</option>
<option value="8">August</option>
<option value="9">September</option>
<option value="10">October</option>
<option value="11">November</option>
<option value="12">December</option>
</select>
<select name="day" id="day">
<option value="na">Day</option>
</select>
<select name="year" id="year">
<option value="na">Year</option>
</select>
<script language="JavaScript" type="text/javascript">
function changeDate(i){
var e = document.getElementById('day');
while(e.length>0)
e.remove(e.length-1);
var j=-1;
if(i=="na")
k=0;
else if(i==2)
k=28;
else if(i==4||i==6||i==9||i==11)
k=30;
else
k=31;
while(j++<k){
var s=document.createElement('option');
var e=document.getElementById('day');
if(j==0){
s.text="Day";
s.value="na";
try{
e.add(s,null);}
catch(ex){
e.add(s);}}
else{
s.text=j;
s.value=j;
try{
e.add(s,null);}
catch(ex){
e.add(s);}}}}
y = 1998;
while (y-->1908){
var s = document.createElement('option');
var e = document.getElementById('year');
s.text=y;
s.value=y;
try{
e.add(s,null);}
catch(ex){
e.add(s);}}
</script>
</p>
<p>
<label>Gender:</label>
<select name="Gender">
<option value="male">Male</option>
<option value="female">Female</option>
</select>
</p>
<p class="signin button">
<input type="submit" value="Register"/>
</p>
</form>
错误
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /teach.jsp:35
32:
33:String Sql="insert into teacher2(firstname,lastname,username,password,confirmpassword,email,month,day,year,gender) values('"+name+"','"+abc+"','"+cde+"','"+pass+"','"+confpass+"','"+emails+"','"+months+"','"+day+"','"+year+"','"+gender+"')";
34:
35: rs=st.executeQuery(Sql);
38: %>
堆栈跟踪：
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:355)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)