java7连接数据库 网页 添加学生信息测试
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石家庄铁道大学2019年秋季
2018 级课堂测试试卷（六）（10分）
课程名称： JAVA语言程序设计 任课教师： 王建民 考试时间： 150 分钟
一、 考试要求： 
1登录账号：要求由6到12位字母、数字、下划线组成，只有字母可以开头；（1分）
2登录密码：要求显示“• ”或“*”表示输入位数，密码要求八位以上字母、数字组成。（1分）
3性别：要求用单选框或下拉框实现，选项只有“男”或“女”；（1分）
4学号：要求八位数字组成，前四位为“2018”开头，输入自己学号；（1分）
5姓名：输入自己的姓名；
5电子邮箱：要求判断正确格式xxxx@xxxx.xxxx；（1分）
6点击“添加”按钮，将学生个人信息存储到数据库中。（3分）
7可以演示连接上数据库。（2分）
index.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>注册</title>
<!-- CSS样式 -->
<style type="text/css">
tr{height:30px;}
th{width:70px;text-align:left;}
</style>
<!-- 结束 -->
</head>
<body >
<h2 style="text-align:center">用户注册</h2>
<form action="./AddServlet" method="post" onsubmit="return check()">
<table style="align:center;margin:auto;" >
<tr >
<th >登录账号：</th>
<td ><input type="text" name="username"id="username" placeholder="请输入登录账号"></td>
</tr>
<tr>
<th >登录密码：</th>
<td><input type="password" name="password"id="password"placeholder="请输入登录密码"></td>
</tr>
<tr >
<th >性别：</th>
<td><input type="radio" name="sex"id="sex" value="男" checked="checked">男<input type="radio" name="sex"id="sex" value="女">女</td>
</tr>
<tr >
<th >姓名：</th>
<td><input type="text" name="name"id="name"placeholder="请输入姓名"></td>
</tr>
<tr >
<th >学号：</th>
<td><input type="text" name="stunumber"id="stunumber"placeholder="请输入学号"></td>
</tr>
<tr >
<th >电子邮件：</th>
<td><input type="text" name="mail"id="mail"placeholder="请输入电子邮件"></td>
</tr>
<tr >
<th >所在学校：</th>
<td><input type="text" name="school"id="school"placeholder="请输入所在学校"></td>
</tr>
<tr >
<th >所在系：</th>
<td><input type="text" name="xi"id="xi"placeholder="请输入所在系"></td>
</tr>
<tr >
<th >所在班级：</th>
<td><input type="text" name="class1"id="class1"placeholder="请输入所在班级"></td>
</tr>
<tr >
<th >入学年份：</th>
<td><select name="stuyear"id="stuyear">
<option value="2019届">2019届</option>
<option value="2018届">2018届</option>
<option value="2017届">2017届</option>
<option value="2016届">2016届</option>
</select></td>
</tr>
<tr >
<th >生源地：</th>
<td><input type="text" name="place"id="place"placeholder="请输入生源地"></td>
</tr>
<tr >
<th >备注：</th>
<td><input type="text" name="beizhu"id="beizhu"placeholder="无"></td>
</tr>
<tr >
<td colspan="2"align="center"><input type="submit" value="注册" >
<input type="reset" value="重置" ></td>
</tr>
</table>
</form>
<!-- 输入字段验证部分 -->
<script type="text/javascript">
function check(){
var username=document.getElementById("username");
var password=document.getElementById("password");
var stunumber=document.getElementById("stunumber");
var name=document.getElementById("name");
var mail=document.getElementById("mail");
var sReg = /[_a-zA-Z\\d\\-\\.]+@[_a-zA-Z\\d\\-]+(\\.[_a-zA-Z\\d\\-]+)+$/; //正则表达式
//判断登陆账号位数
if((username.value).length<6||(username.value).length>12){
alert(\'请输入6到12位英文字母、数字和下划线，以英文字母开头\');
username.focus();
return false;
}
//判断登陆账号是否包含汉字
if(/.*[\\u4e00-\\u9fa5]+.*$/.test(username.value)){
alert(\'用户名不能包含汉字\');
username.focus();
return false;
}
//判断登陆账号是否以英文字母开头
if(!isNaN(username.value[0])){
alert(\'请以英文字母开头\');
username.focus();
return false;
}
//判断登录密码位数
if((password.value).length<8){
alert(\'密码应为8位以上英文或数字\');
password.focus();
return false;
}
//验证学号是否合法
if((stunumber.value).length!=8)
{
alert(\'学号应为8位以2018为开头的数字\');
stunumber.focus();
return false;
}
else if(stunumber.value[3]!=8)
{
alert(\'学号应为8位以2018为开头的数字\');
stunumber.focus();
return false;
}
//判断姓名是否为空
if(name.value==\'\'){
alert(\'姓名不能为空\');
name.focus();
return false;
}
//判断电子邮件格式是否正确
if(! sReg.test(mail.value)){
alert(\'电子邮件格式错误\');
mail.focus();
return false;
}
}
</script>
<!-- 验证结束 -->
</body>
</html>
fail.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1 style="text-align:center;">添加失败</h1>
<h1 style="text-align:center;"><a href="index.jsp">返回继续添加信息</a></h1>
</body>
</html>
success.jps：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1 style="text-align:center;">添加成功</h1>
<h1 style="text-align:center;"><a href="index.jsp">返回继续添加信息</a></h1>
</body>
</html>
Name.java：
package com.login1.name;
public class Name {
private int id;
private String username;
private String password;
private String sex;
private String name;
private String stunumber;
private String mail;
private String school;
private String xi;
private String class1;
private String stuyear;
private String place;
private String beizhu;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getStunumber() {
return stunumber;
}
public void setStunumber(String stunumber) {
this.stunumber = stunumber;
}
public String getMail() {
return mail;
}
public void setMail(String mail) {
this.mail = mail;
}
public String getSchool() {
return school;
}
public void setSchool(String school) {
this.school = school;
}
public String getXi() {
return xi;
}
public void setXi(String xi) {
this.xi = xi;
}
public String getClass1() {
return class1;
}
public void setClass1(String class1) {
this.class1 = class1;
}
public String getStuyear() {
return stuyear;
}
public void setStuyear(String stuyear) {
this.stuyear = stuyear;
}
public String getPlace() {
return place;
}
public void setPlace(String place) {
this.place = place;
}
public String getBeizhu() {
return beizhu;
}
public void setBeizhu(String beizhu) {
this.beizhu = beizhu;
}
public Name(int id, String username, String password, String sex, String name, String stunumber, String mail,
String school, String xi, String class1, String stuyear, String place, String beizhu) {
super();
this.id = id;
this.username = username;
this.password = password;
this.sex = sex;
this.name = name;
this.stunumber = stunumber;
this.mail = mail;
this.school = school;
this.xi = xi;
this.class1 = class1;
this.stuyear = stuyear;
this.place = place;
this.beizhu = beizhu;
}
public Name(String username, String password, String sex, String name, String stunumber, String mail, String school,
String xi, String class1, String stuyear, String place, String beizhu) {
super();
this.username = username;
this.password = password;
this.sex = sex;
this.name = name;
this.stunumber = stunumber;
this.mail = mail;
this.school = school;
this.xi = xi;
this.class1 = class1;
this.stuyear = stuyear;
this.place = place;
this.beizhu = beizhu;
}
}
DBUtil.java:
package com.login1.util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class DBUtil {
public static String db_url="jdbc:mysql://127.0.0.1:3306/javaweb?useUnicode=ture&"
+ "characterEncoding=utf8&serverTimezone=GMT&useSSL=false";
public static String db_user="root";
public static String db_password="123456";
public static Connection getConn()
{
Connection conn=null;
try
{
Class.forName("com.mysql.cj.jdbc.Driver");
conn=DriverManager.getConnection(db_url,db_user,db_password);
System.out.println("数据库连接成功");
}catch(Exception e)
{
e.printStackTrace();
}
return conn;
}
public static void close (Statement state,Connection conn)
{
if(state!=null)
{
try
{
state.close();
//System.out.println("state关闭");
}catch(SQLException e)
{
e.printStackTrace();
}
}
if(conn!=null)
{
try
{
conn.close();
//System.out.println("conn关闭");
}catch(SQLException e)
{
e.printStackTrace();
}
}
}
public static void close (ResultSet rs,Statement state,Connection conn)
{
if(rs!=null)
{
try
{
rs.close();
//System.out.println("rs关闭");
}catch(SQLException e)
{
e.printStackTrace();
}
}
if(state!=null)
{
try
{
state.close();
//System.out.println("state关闭");
}catch(SQLException e)
{
e.printStackTrace();
}
}
if(conn!=null)
{
try
{
conn.close();
//System.out.println("conn关闭");
}catch(SQLException e)
{
e.printStackTrace();
}
}
}
public static void main(String[] args) {
Connection conn = DBUtil.getConn();
}
}
Dao.java:
package com.login1.dao;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import com.login1.name.Name;
import com.login1.util.DBUtil;
public class Dao {
//将数据添加到数据库
public boolean add(Name login1)
{
Connection conn = DBUtil.getConn();
Statement state = null;
//添加的SQL语句，将信息录入到login1表中
String sql="insert into login1(username,password,sex,name,stunumber,mail,school,xi,class1,stuyear,place,beizhu) values(\'"+login1.getUsername()+"\',\'"+login1.getPassword()+"\',\'"+login1.getSex()+"\',\'"+login1.getName()+
"\',\'"+login1.getStunumber()+"\',\'"+login1.getMail()+"\',\'"+login1.getSchool()+"\',\'"+login1.getXi()+"\',\'"+login1.getClass1()+"\',\'"+login1.getStuyear()+"\',\'"+login1.getPlace()+"\',\'"+login1.getBeizhu()+"\')";
int a=0;
try
{
state = conn.createStatement();
a=state.executeUpdate(sql);
}catch (SQLException e)
{
e.printStackTrace();
return false;
}finally
{
DBUtil.close(state,conn);
}
if(a>0)return true;
else return false;
}
}
AddServlet.java:
package com.login.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.login1.dao.Dao;
import com.login1.name.Name;
/**
* Servlet implementation class AddServlet
*/
@WebServlet("/AddServlet")
public class AddServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
Dao dao =new Dao();
/**
* @see HttpServlet#HttpServlet()
*/
public AddServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
String username=request.getParameter("username");
String password=request.getParameter("password");
String sex=request.getParameter("sex");
String name=request.getParameter("name");
String stunumber=request.getParameter("stunumber");
String mail=request.getParameter("mail");
String school=request.getParameter("school");
String xi=request.getParameter("xi");
String class1=request.getParameter("class1");
String stuyear=request.getParameter("stuyear");
String place=request.getParameter("place");
String beizhu=request.getParameter("beizhu");
Name login1 =new Name(username,password,sex,name,stunumber,mail,school,xi,class1,stuyear,place,beizhu);
if(dao.add(login1))
{
request.getRequestDispatcher("success.jsp").forward(request,response);
}
else
{
request.getRequestDispatcher("fail.jsp").forward(request,response);
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
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