整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

文章目录

写在前言

写作收获&目的

​ 本篇文章结构大体还是和上篇文章 ​​Mybatis+Servlet+Mysql 整合的一个小项目​​一致,但增加了axios、Filter、session。

在数据库层面涉及到了增、查、改,一个代码量不算多的小项目,但十分有助于初学者的学习。

博主在编写项目的同时,发现自己对Axios、Filter的理解并不好,通过本项目,打扎实了自己的基础。

开发此小项目之前,我对同学说,我异步请求用的很少,殊不知自己一直在用异步请求,反而同步请求用的很少很少了。

在编写项目之时,被axios post传参困扰了很久很久,最后终于通过查询CSDN找到了自己想要的答案。

目录结构

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

1 依赖配置

1.1 创建一个Web项目

不会的可以看这篇文章​​【Tomcat】贰-Tomcat集成到Idea​

1.2 Pom.xml

还是和往常一样分析一下需要用到哪些依赖。

上文中提到了Mybatis、Lombok、Mysql、Servlet、Junit,这篇文章也用到了,引入的Filter是Servlet里面的,Axios的引入方式又非Pom.xml。至于JSon,本篇文章没有用到,所以本文章的依赖有:

  • Mybatis
  • Lombok
  • Mysql
  • Servlet
  • Junit

友情提示:不要引错了,否则有些类不能使用

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--引入Servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!--引入Mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.7</version>
</dependency>
<!--引入mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.30</version>
</dependency>
<!--引入FastJson:用于JSon和Java类之间的转换-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.75</version>
</dependency>
<!--引入Lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</dependency>
</dependencies>

2 配置Mybatis

上文漏掉的,mybatis-config.xml需要放在resource文件夹下。

mybatis-config配置,主要包括两个点:

  • 数据库配置:数据库名称、JDBC、数据库用户名和密码
  • Mapper:让Mybatis找到Mapper.xml

2.1 Mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="com.mysql.cj.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/us80?useSSL=false&serverTimezone=UTC"/>
<property name="username" value="root"/>
<property name="password" value="200201203332"/>
</dataSource>
</environment>
</environments>

<mappers>
<package name="com/you/web/Mapper"/>
</mappers>
</configuration>

2.2 UserMapper.xml

这里的xml文件只是起到了一个绑定接口的作用。如果没有本文件,那么Mybatis是找不到UserMapper的,也就意味着SQl语句不能被执行。

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.you.web.Mapper.UserMapper">

</mapper>

2.3 UserMapper.interface

package com.you.web.Mapper;



import com.you.web.Dept.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

public interface UserMapper {
@Select("select * from user where user_name = #{user_name} and user_pwd = #{user_pwd}")
public User selectUserByInfo(@Param("user_name") String user_name, @Param("user_pwd") String user_pwd);
@Select("select * from user")
public List<User> queryAllUsers();
@Insert("insert into user values(null,#{user_name},#{user_pwd},#{user_emil})")
public boolean registerUser(@Param("user_name") String user_name,@Param("user_pwd") String user_pwd,@Param("user_emil") String user_emil);
/* 根据用户名查询用户 */

@Select("select * from user where user_name = #{user_name}")
public User selectUserByUsername(@Param("user_name") String user_name);
@Update("update user set user_pwd = #{user_pwd} where user_name = #{user_name}")
public boolean reviseUserByInfo(@Param("user_name") String user_name, @Param("user_pwd") String user_pwd);
}

3 配置Tomcat

参考本人的文章 ​​【Tomcat】贰-Tomcat集成到Idea​

4 Servlet类

4.1 ForgetServlet

处理忘记密码业务

package com.you.web.Servlet;

import com.you.web.Dept.User;
import com.you.web.Mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

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 javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

@WebServlet(urlPatterns = "/ForgetServlet")
public class ForgetServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String username = req.getParameter("username");
String password = req.getParameter("password");


/* 2、连接数据库 */
String resource = "mybatis-config.xml";
InputStream inputStream = null;
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
/* 3、执行SQL语句 */
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
boolean user = mapper.reviseUserByInfo(username, password);
resp.setContentType("text/html;charset=UTF-8");
PrintWriter writer = resp.getWriter();
if(user)
{
//提交
sqlSession.commit();
writer.write("true");
}else{
writer.write("false");
}
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doGet(req,resp);
}
}

4.2 LoginServlet

处理登录业务的

package com.you.web.Servlet;

import com.you.web.Dept.User;
import com.you.web.Mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

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 javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

@WebServlet("/loginServlet")
public class LoginServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String username = req.getParameter("username");
String password = req.getParameter("password");


/* 2、连接数据库 */
String resource = "mybatis-config.xml";
InputStream inputStream = null;
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
/* 3、执行SQL语句 */
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
User user = mapper.selectUserByInfo(username, password);
resp.setContentType("text/html;charset=UTF-8");
PrintWriter writer = resp.getWriter();
if(user != null)
{
/* 1、获取Session对象 */
HttpSession session = req.getSession();
/* 2、设置Session对象 */
session.setAttribute("username",username);
session.setAttribute("password",password);
writer.write("true");
}else{
writer.write("false");
}
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doGet(req,resp);
}
}

4.3 RegisterServlet

处理注册业务

package com.you.web.Servlet;

import com.you.web.Dept.User;
import com.you.web.Mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

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 java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

@WebServlet(urlPatterns = "/RegisterServlet")
public class RegisterServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String username = req.getParameter("username");
String password = req.getParameter("password");


/* 2、连接数据库 */
String resource = "mybatis-config.xml";
InputStream inputStream = null;
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
/* 3、执行SQL语句 */
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
boolean b = mapper.registerUser(username, password, null);
resp.setContentType("text/html;charset=UTF-8");
PrintWriter writer = resp.getWriter();

if(b == true)
{
sqlSession.commit();
writer.write("true");
}else{
writer.write("false");
}
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doGet(req,resp);
}
}

4.4 UserServlet

处理用户名是否存在

package com.you.web.Servlet;

import com.mysql.cj.xdevapi.JsonParser;
import com.you.web.Dept.User;
import com.you.web.Mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

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 java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;

@WebServlet("/userServlet")
public class UserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
/* 1、获取携带的用户名、密码、邮箱 */
String username = req.getParameter("username");
System.out.println("获取的用户名是:"+username);

/* 2、连接数据库 */
String resource = "mybatis-config.xml";
InputStream inputStream = null;
inputStream = Resources.getResourceAsStream(resource);
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
SqlSession sqlSession = sqlSessionFactory.openSession();
/* 3、执行SQL语句 */
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
User user = mapper.selectUserByUsername(username);
resp.setContentType("text/html;charset=UTF-8");
PrintWriter writer = resp.getWriter();
if (user!=null)
System.out.println("user的值是:"+user);
if(user == null)
{
writer.write("true");
}else{
writer.write("false");
}
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {


this.doGet(req,resp);
}
}

5 Filter类和实体类

5.1 HomeFilter

处理未登录不可访问Home页面的业务

package com.you.web.Filter;


import com.sun.deploy.net.HttpRequest;
import com.sun.deploy.net.HttpResponse;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebFilter("/home.html")
public class HomeFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {

}

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
System.out.println("放行前");
/* 1、获取Session对象 */
HttpServletRequest httpRequest = (HttpServletRequest)request;
HttpSession session = httpRequest.getSession();
/* 2、根据名字获取Session */
Object username = null;
if(session.getAttribute("username")!=null)
{
username = session.getAttribute("username");
}else{
System.out.println("我是空的,爱咋咋地!");
}
Object password = null;
if(session.getAttribute("password")!=null)
{
password = session.getAttribute("password");
}else{
System.out.println("我是空的,爱咋咋地!");
}
if(username!=null&&password!=null)
{
System.out.println("放行!!!");
chain.doFilter(request,response);
}else {
System.out.println("hey,我要跳转");
HttpServletResponse httpResponse = (HttpServletResponse) response;
httpResponse.sendRedirect("http://localhost:8080/JavaWeb_Demo_08_war/prelogin.html");
}

}

@Override
public void destroy() {

}
}

5.2 User

package com.you.web.Dept;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;

@Data
@NoArgsConstructor
@AllArgsConstructor
@ToString

public class User {
private Integer user_no;
private String user_name;
private String user_pwd;
private String user_emial;
}

6 静态页面

6.1 error.html

  • 登录失败跳转到的页面
  • prelogin.html、success.html和该页面都一样,可以换成自己喜欢的
<!DOCTYPE html>
<html lang="zh-CN">

<head>
<meta charset="utf-8">
<title>太空题材404错误页面演示_dowebok</title>

</head>

<body>
<div class="mars"></div>

<img src="images/meteor.svg" class="meteor">
<p class="title">很抱歉</p>
<p class="subtitle">您输入的用户名或密码错误,请重新登录</p>
<div align="center">
<a class="btn-back">3秒后将自动跳转到登录页面</a>
</div>
<img src="astronaut.svg" class="astronaut">
<img src="images/spaceship.svg" class="spaceship">
</body>
<script language="javascript" type="text/javascript">// 3秒以后再跳转

setTimeout("javascript:location.href='http://localhost:8080/JavaWeb_Demo_08_war/login.html'", 3000);</script>
<style>@keyframes {
from {
transform: translateY(0px);
}

65% {
transform: translateY(15px);
}

to {
transform: translateY(0px);
}
}

html {
height: 100%;
}

body {
background-image: url("../images/star.svg"), linear-gradient(to bottom, #05007A, #4D007D);
height: 100%;
margin: 0;
background-attachment: fixed;
overflow: hidden;
}

.mars {
left: 0;
right: 0;
bottom: 0;
position: absolute;
height: 27vmin;
background: url("../images/mars.svg") no-repeat bottom center;
background-size: cover;
}

.logo-404 {
position: absolute;
margin-left: auto;
margin-right: auto;
left: 0;
right: 0;
top: 16vmin;
width: 30vmin;
}

@media (max-width: 480px) and (min-width: 320px) {
.logo-404 {
top: 45vmin;
}
}

.meteor {
position: absolute;
right: 2vmin;
top: 16vmin;
}

.title {
position: relative;
z-index: 2;
color: white;
font-family: "Nunito", sans-serif;
font-weight: 600;
text-align: center;
font-size: 5vmin;
margin-top: 31vmin;
}

@media (max-width: 480px) and (min-width: 320px) {
.title {
margin-top: 65vmin;
}
}

.subtitle {
position: relative;
z-index: 2;
color: white;
font-family: "Nunito", sans-serif;
font-weight: 400;
text-align: center;
font-size: 3.5vmin;
margin-top: -1vmin;
margin-bottom: 9vmin;
}

.btn-back {
position: relative;
z-index: 2;
border: 1px solid white;
color: white;
height: 5vmin;
padding: 12px;
font-family: "Nunito", sans-serif;
text-decoration: none;
border-radius: 5px;
}

.btn-back:hover {
background: white;
color: #4D007D;
}

@media (max-width: 480px) and (min-width: 320px) {
.btn-back {
font-size: 3.5vmin;
}
}

.astronaut {
position: absolute;
z-index: 1;
top: 18vmin;
left: 10vmin;
height: 30vmin;
animation: floating 3s infinite ease-in-out;
}

@media (max-width: 480px) and (min-width: 320px) {
.astronaut {
top: 2vmin;
}
}

.spaceship {
position: absolute;
z-index: 1;
bottom: 15vmin;
right: 24vmin;
}

@media (max-width: 480px) and (min-width: 320px) {
.spaceship {
width: 45vmin;
bottom: 18vmin;
}
}</style>
</html>

6.2 home.html

主页

<!DOCTYPE html>
<html>
<head>
<style>body
{
background:url(https://cdn.jsdelivr.net/gh/yw2667899/pic/img/93401075_p0.jpg);
background-size: cover;
}</style>
<!--自定义背景图:把上面url()的链接换成你的图片链接,必须是公开图片,可以使用 图床 -->
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>简约导航</title>
<meta name="viewport"
content="width=device-width, initial-scale=1.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0" />
<meta content="telephone=no,email=no" name="format-detection">
<meta content="yes" name="apple-mobile-web-app-capable">
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<meta name="apple-touch-fullscreen" content="yes" />
<meta name="keywords" content="网址导航" />
<meta name="description" content="一个简单美观可自定义的网址导航" />
<link rel="shortcut icon" href="favicon.ico">
<!-- 注意!为了优化演示站访问速度下方两行引用的是CDN上的CSS文件地址,请修改为自己的样式文件地址 -->
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/appexplore/jianavi/css/style.css" />
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/appexplore/jianavi/css/yidong.css" />
<!-- 本项目开源地址:https://github.com/appexplore/jianavi 请勿完全抄袭源码,请勿声明自己是原创 -->
</head>

<body>

<!-- 搜索栏start -->
<div class="baidu baidu-2">
<form name="f" action="https://www.baidu.com/s" target="_blank">
<div class="Select-box-2" id="baidu">
<ul>
<li class="this_s">百 度</li>
<li class="miji_s">多 吉</li>
<li class="bing_s">必 应</li>
<li class="google_s">谷 歌</li>
<li class="baidu_s">百 度</li>
</ul>
</div>
<div class="in5">
<input name="wd" id="kw-2" maxlength="100" autocomplete="off" type="text">
<div class="qingkong" id="qingkong" title="清空">x</div>
</div>
<input value="搜 索" id="su-2" type="submit">
</form>
<ul class="keylist"></ul>
</div>
<!-- 搜索栏end -->

<!-- 内容start -->
<div class="body">
<div class="content">
<div class="jianjie">
<div class="jj-list">
<div class="jj-list-tit">学习 · 生活</div>
<!-- 这里当然可以取你想要的名字啦,下面那几个也是一样的 -->
<ul class="jj-list-con">
<li><a href="https://www.taobao.com/" class="link-3" target="_blank" rel="nofollow">淘宝</a></li>
<!-- 添加网站:herf=""里面改成要添加的网址,中间夹的汉字改成你想要的名字 -->
<li><a href="https://www.jd.com/" class="link-3" target="_blank" rel="nofollow">京东</a></li>
<li><a href="https://guiderank-app.com/" class="link-3" target="_blank" rel="nofollow">盖得排行</a></li>
<li><a href="http://123.sogou.com/shwz/yinhang.html" class="link-3" target="_blank"
rel="nofollow">银行</a></li>
<li><a href="https://www.amap.com/" class="link-3" target="_blank" rel="nofollow">地图</a></li>
<li><a href="https://translate.google.cn/" class="link-3" target="_blank" rel="nofollow">翻译</a>
</li>
<li><a href="https://hao.qq.com/qita/youxiang.html" class="link-3" target="_blank"
rel="nofollow">邮箱</a></li>
<li><a href="https://www.runoob.com/" class="link-3" target="_blank" rel="nofollow">菜鸟教程</a>
</li>
<li><a href="https://www.icourse163.org/" class="link-3" target="_blank" rel="nofollow">MOOC</a>
</li>
</ul>
</div>
<div class="jj-list">
<div class="jj-list-tit">常用 · 社区</div>
<ul class="jj-list-con">
<li><a href="https://wx.qq.com/" class="link-3" target="_blank" rel="nofollow">微信</a></li>
<li><a href="https://weibo.com/" class="link-3" target="_blank" rel="nofollow">微博</a></li>
<li><a href="https://www.zhihu.com/" class="link-3" target="_blank" rel="nofollow">知乎</a></li>
<li><a href="https://tieba.baidu.com/" class="link-3" target="_blank" rel="nofollow">贴吧</a></li>
<li><a href="http://www.soomal.com/" class="link-3" target="_blank" rel="nofollow">Soomal</a>
</li>
<li><a href="https://topbook.cc/overview" class="link-3" target="_blank"
rel="nofollow">Topbook</a></li>
<li><a href="https://github.com/" class="link-3" target="_blank" rel="nofollow">GitHub</a></li>
<li><a href="https://www.douban.com/" class="link-3" target="_blank" rel="nofollow">豆瓣</a></li>
<li><a href="https://www.v2ex.com/" class="link-3" target="_blank" rel="nofollow">V2EX</a></li>
</ul>
</div>
<div class="jj-list">
<div class="jj-list-tit">影音 · 娱乐</div>
<ul class="jj-list-con">
<li><a href="https://www.iqiyi.com/" class="link-3" target="_blank" rel="nofollow">爱奇艺</a></li>
<li><a href="https://v.qq.com/" class="link-3" target="_blank" rel="nofollow">腾讯视频</a></li>
<li><a href="https://www.bilibili.com/" class="link-3" target="_blank" rel="nofollow">哔哩哔哩</a>
</li>
<li><a href="https://www.mgtv.com/" class="link-3" target="_blank" rel="nofollow">芒果TV</a></li>
<li><a href="https://www.youku.com/" class="link-3" target="_blank" rel="nofollow">优酷</a></li>
<li><a href="https://music.163.com/" class="link-3" target="_blank" rel="nofollow">音乐</a></li>
<li><a href="https://dianying.fm/" class="link-3" target="_blank" rel="nofollow">电影FM</a></li>
<li><a href="https://www.dikotv.com/" class="link-3" target="_blank" rel="nofollow">顶空影视</a>
</li>
<li><a href="http://www.zzzfun.com/" class="link-3" target="_blank" rel="nofollow">ZzzFun</a>
</li>
</ul>
</div>
<div class="jj-list">
<div class="jj-list-tit">发现 · 世界</div>
<ul class="jj-list-con">
<li><a href="https://news.ifeng.com/" class="link-3" target="_blank" rel="nofollow">凤凰资讯</a>
</li>
<li><a href="https://ef.zhiweidata.com/#!/index" class="link-3" target="_blank"
rel="nofollow">知微事见</a></li>
<li><a href="https://sspai.com/" class="link-3" target="_blank" rel="nofollow">少数派</a></li>
<li><a href="https://jikipedia.com/" class="link-3" target="_blank" rel="nofollow">小鸡词典</a></li>
<li><a href="https://jandan.net/" class="link-3" target="_blank" rel="nofollow">煎蛋</a></li>
<li><a href="https://youquhome.com/" class="link-3" target="_blank" rel="nofollow">有趣网址</a></li>
<li><a href="https://zhuxiao.wiki/" class="link-3" target="_blank" rel="nofollow">注销指南</a>
</li>
<li><a href="https://houxu.app/" class="link-3" target="_blank" rel="nofollow">后续</a></li>
<li><a href="https://ac.scmor.com/" class="link-3" target="_blank" rel="nofollow">思谋学术</a></li>
</ul>
</div>
<div class="jj-list">
<div class="jj-list-tit">在线 · 工具</div>
<ul class="jj-list-con">
<li><a href="https://www.photopea.com/" class="link-3" target="_blank"
rel="nofollow">在线修图</a></li>
<li><a href="https://cowtransfer.com/" class="link-3" target="_blank" rel="nofollow">收发文件</a>
</li>
<li><a href="https://cli.im/" class="link-3" target="_blank" rel="nofollow">二维码</a></li>
<li><a href="https://www.linshiyouxiang.net" class="link-3" target="_blank"
rel="nofollow">临时邮箱</a></li>
<li><a href="https://www.materialtools.com/" class="link-3" target="_blank"
rel="nofollow">临时短信</a></li>
<li><a href="https://convertio.co/zh/" class="link-3" target="_blank" rel="nofollow">格式转换</a>
</li>
<li><a href="http://www.hiwenku.com/" class="link-3" target="_blank" rel="nofollow">文档下载</a>
</li>
<li><a href="https://weibomiaopai.com/" class="link-3" target="_blank" rel="nofollow">视频下载</a>
</li>
<li><a href="https://www.eggvod.cn/music/" class="link-3" target="_blank" rel="nofollow">音乐下载</a>
</li>
</ul>
</div>
<div class="jj-list">
<div class="jj-list-tit">搜索 · 资源</div>
<ul class="jj-list-con">
<li><a href="https://www.cupfox.com/" class="link-3" target="_blank" rel="nofollow">茶杯狐</a></li>
<li><a href="https://www.dy2018.com/" class="link-3" target="_blank" rel="nofollow">电影天堂</a></li>
<li><a href="https://www.coolist.net/" class="link-3" target="_blank" rel="nofollow">酷软清单</a>
</li>
<li><a href="https://minapp.com/" class="link-3" target="_blank" rel="nofollow">知晓程序</a></li>
<li><a href="https://zhengbanxianmian.com/" class="link-3" target="_blank"
rel="nofollow">软件限免</a></li>
<li><a href="https://www.soukuzhan.com/" class="link-3" target="_blank"
rel="nofollow">搜酷站</a></li>
<li><a href="https://www.jiumodiary.com/" class="link-3" target="_blank" rel="nofollow">电子书</a>
</li>
<li><a href="https://pan.appts.cn/" class="link-3" target="_blank" rel="nofollow">常用软件</a>
</li>
<li><a href="http://www.zimuku.la/" class="link-3" target="_blank" rel="nofollow">字幕库</a></li>
</ul>
</div>
</div>
<!-- 内容end -->

<!-- 底部版权start -->
<!-- 开源不易,请保留下方本项目开源地址 -->
<!-- 如果您不愿意保留下方本项目开源地址,请打赏并留言您的网址 >> https://afdian.net/@appts -->

<div class="footer1">Copyright © 2021
<a href="https://www.appts.cn/" style="color:#ffffff;" target="_blank" rel="nofollow">软件探索 </a>
<!-- 请保留下方开源地址-->
<a href="https://github.com/appexplore/jianavi" style="color:#ffffff;" target="_blank"
rel="nofollow">开源 </a>
</div>
</div>

<div class="footer">Copyright © 2021
<a href="https://www.appts.cn/" style="color:#ffffff;" target="_blank" rel="nofollow">软件探索 </a>
<!-- 请保留下方开源地址-->
<a href="https://github.com/appexplore/jianavi" style="color:#ffffff;" target="_blank"
rel="nofollow">开源 </a>
</div>
<!-- 底部版权end -->
</div>

<!-- 注意!为了优化演示站访问速度下方两行引用的是CDN上的js文件地址,请修改为自己的样式文件地址 -->
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/appexplore/jianavi/js/jquery.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/appexplore/jianavi/js/js.min.js"></script>
</body>

</html>

6.3 Login.html

涵盖了登录、注册、修改密码的页面

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>登录</title>
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/login.css">
<link rel="stylesheet" href="css/sign-up-login.css">
<link rel="stylesheet" type="text/css" href="css/font-awesome.4.6.0.css">
<link rel="stylesheet" href="css/inputEffect.css"/>
<link rel="stylesheet" href="css/verifyCode.css"/>
<link rel="stylesheet" href="css/tooltips.css"/>
<link rel="stylesheet" href="css/spop.min.css"/>
<script src="js/jquery-1.10.2.js"></script>
<script src="js/snow.js"></script>
<script src="js/jquery.pure.tooltips.js"></script>
<script src="js/verifyCode.js"></script>
<script src="js/spop.min.js">
</script>
<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
<script>(function () {
// trim polyfill : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim
if (!String.prototype.trim) {
(function () {
// Make sure we trim BOM and NBSP
var rtrim = /^[suFEFFxA0]+|[suFEFFxA0]+$/g;
String.prototype.trim = function () {
return this.replace(rtrim, '');
};
})();
}

[].slice.call(document.querySelectorAll('input.input__field')).forEach(function (inputEl) {
// in case the input is already filled..
if (inputEl.value.trim() !== '') {
classie.add(inputEl.parentNode, 'input--filled');
}

// events:
inputEl.addEventListener('focus', onInputFocus);
inputEl.addEventListener('blur', onInputBlur);
});

function onInputFocus(ev) {
classie.add(ev.target.parentNode, 'input--filled');
}

function onInputBlur(ev) {
if (ev.target.value.trim() === '') {
classie.remove(ev.target.parentNode, 'input--filled');
}
}
})();

$(function () {
$('#login #login-password').focus(function () {
$('.login-owl').addClass('password');
}).blur(function () {
$('.login-owl').removeClass('password');
});
$('#login #register-password').focus(function () {
$('.register-owl').addClass('password');
}).blur(function () {
$('.register-owl').removeClass('password');
});
$('#login #register-repassword').focus(function () {
$('.register-owl').addClass('password');
}).blur(function () {
$('.register-owl').removeClass('password');
});
$('#login #forget-password').focus(function () {
$('.forget-owl').addClass('password');
}).blur(function () {
$('.forget-owl').removeClass('password');
});
});

function goto_register() {
$("#register-username").val("");
$("#register-password").val("");
$("#register-repassword").val("");
$("#register-code").val("");
$("#tab-2").prop("checked", true);
}

function goto_login() {
$("#login-username").val("");
$("#login-password").val("");
$("#tab-1").prop("checked", true);
}

function goto_forget() {
$("#forget-username").val("");
$("#forget-password").val("");
$("#forget-code").val("");
$("#tab-3").prop("checked", true);
}

function login() {
var username = $("#login-username").val(),
password = $("#login-password").val(),
verifycode = $("#login-verify-code").val(),
validatecode = null;
var paramData = {username:username,password,password};
axios({
method: "POST", //请求的方式
url: 'http://localhost:8080/JavaWeb_Demo_08_war/loginServlet', //请求的路径
params: paramData
}).then(res=>{
if(res.data)
{
window.location.href = 'http://localhost:8080/JavaWeb_Demo_08_war/home.html';
}else{
window.location.href = 'http://localhost:8080/JavaWeb_Demo_08_war/error.html';
}
})
}

//注册
function register() {
var username = $("#register-username").val(),
password = $("#register-password").val(),
repassword = $("#register-repassword").val(),
code = $("#register-code").val(),
flag = false,
validatecode = null;
console.log("拿到的用户名是:" + username);
var paramData = {username: username};
axios({
method: "POST", //请求的方式
url: 'http://localhost:8080/JavaWeb_Demo_08_war/userServlet', //请求的路径
params: paramData
}).then(resp => {
let results = resp.data;
if (results == true) {
//若可以注册,则访问注册是Servlet
var paramData = {username: username,password:password};
axios({
method: "POST", //请求的方式
url: 'http://localhost:8080/JavaWeb_Demo_08_war/RegisterServlet', //请求的路径
params: paramData
}).then(resp=>{
if(resp.data)
{
window.location.href = 'http://localhost:8080/JavaWeb_Demo_08_war/registerSuccess.html';
}
})
} else {

}
})
}

//重置密码
function forget() {
var username = $("#forget-username").val(),
password = $("#forget-password").val(),
code = $("#forget-code").val(),
flag = false,
validatecode = null;
/* 1、设置参数 */
var paramData = {'username':username,'password':password};
/* 2、发送axios请求 */
axios({
method: "POST", //请求的方式
url: 'http://localhost:8080/JavaWeb_Demo_08_war/ForgetServlet', //请求的路径
params: paramData
}).then(res=>{
if(res.data)
{
/* 1、如果修改成功了,就让其跳转到登录页面 */
window.location.href = 'http://localhost:8080/JavaWeb_Demo_08_war/success.html';
}else{
/* 2、自己写着玩吧 */
}
})

}

/* 以下为我自己写的代码 */
/* 填完用户名的时候,查询数据库 */
$(function () {
$('#register-username').blur(function () {
/* 查询数据库 */
var username = $("#register-username").val();
console.log("拿到的用户名是:" + username);
var paramData = {username: username};
axios({
method: "POST", //请求的方式
url: 'http://localhost:8080/JavaWeb_Demo_08_war/userServlet', //请求的路径
params: paramData
}).then(resp => {
let results = resp.data;
if (results == true) {

} else {
alert("用户名已存在,请更换一个")

}
})


})
})</script>
<style type="text/css">html {
width: 100%;
height: 100%;
}

body {

background-repeat: no-repeat;

background-position: center center #2D0F0F;

background-color: #00BDDC;

background-image: url(images/snow.jpg);

background-size: 100% 100%;

}

.snow-container {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
pointer-events: none;
z-index: 100001;
}</style>
</head>
<body>

<div class="snow-container"></div>

<div id="login">
<input id="tab-1" type="radio" name="tab" class="sign-in hidden" checked/>
<input id="tab-2" type="radio" name="tab" class="sign-up hidden"/>
<input id="tab-3" type="radio" name="tab" class="sign-out hidden"/>
<div class="wrapper">

<div class="login sign-in-htm">
<form class="container offset1 loginform">

<div id="owl-login" class="login-owl">
<div class="hand"></div>
<div class="hand hand-r"></div>
<div class="arms">
<div class="arm"></div>
<div class="arm arm-r"></div>
</div>
</div>
<div class="pad input-container">
<section class="content">
<span class="input input--hideo">
<input class="input__field input__field--hideo" value="admin" type="text" id="login-username" autocomplete="off"
placeholder="请输入用户名" tabindex="1" maxlength="15"/>
<label class="input__label input__label--hideo" for="login-username">
<i class="fa fa-fw fa-user icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>
<span class="input input--hideo">
<input class="input__field input__field--hideo" type="password" id="login-password" placeholder="请输入密码" tabindex="2"
maxlength="15"/>
<label class="input__label input__label--hideo" for="login-password">
<i class="fa fa-fw fa-lock icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>
<span class="input input--hideo input--verify_code">
<input class="input__field input__field--hideo" type="text" id="login-verify-code" autocomplete="off"
placeholder="请输入验证码" tabindex="3" maxlength="4"/>
<label class="input__label input__label--hideo" for="login-verify-code">
<i class="fa fa-fw fa-bell-o icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>
<canvas class="verify-code-canvas" id="login-verify-code-canvas"></canvas>
</section>
</div>
<div class="form-actions">
<a tabindex="4" class="btn pull-left btn-link text-muted" onclick="goto_forget()">忘记密码?</a>
<a tabindex="5" class="btn btn-link text-muted" onclick="goto_register()">注册</a>
<input class="btn btn-primary" type="button" tabindex="3" onclick="login()" value="登录"
style="color:white;"/>
</div>
</form>
</div>

<div class="login sign-out-htm">
<form action="#" method="post" class="container offset1 loginform">

<div id="owl-login" class="forget-owl">
<div class="hand"></div>
<div class="hand hand-r"></div>
<div class="arms">
<div class="arm"></div>
<div class="arm arm-r"></div>
</div>
</div>
<div class="pad input-container">
<section class="content">
<span class="input input--hideo">
<input class="input__field input__field--hideo" type="text" id="forget-username" autocomplete="off"
placeholder="请输入用户名"/>
<label class="input__label input__label--hideo" for="forget-username">
<i class="fa fa-fw fa-user icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>

</span>
<span class="input input--hideo">
<input class="input__field input__field--hideo" type="password" id="forget-password" placeholder="请重置密码"/>
<label class="input__label input__label--hideo" for="forget-password">
<i class="fa fa-fw fa-lock icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>
</section>
</div>
<div class="form-actions">
<a class="btn pull-left btn-link text-muted" onclick="goto_login()">返回登录</a>
<input class="btn btn-primary" type="button" onclick="forget()" value="重置密码" style="color:white;"/>
</div>
</form>
</div>

<div class="login sign-up-htm">
<form action="#" method="post" class="container offset1 loginform">

<div id="owl-login" class="register-owl">
<div class="hand"></div>
<div class="hand hand-r"></div>
<div class="arms">
<div class="arm"></div>
<div class="arm arm-r"></div>
</div>
</div>
<div class="pad input-container">
<section class="content">
<span class="input input--hideo">
<input class="input__field input__field--hideo" type="text" id="register-username" autocomplete="off"
placeholder="请输入用户名" maxlength="15"/>
<label class="input__label input__label--hideo" for="register-username">
<i class="fa fa-fw fa-user icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>
<span class="input input--hideo">
<input class="input__field input__field--hideo" type="password" id="register-password" placeholder="请输入密码"
maxlength="15"/>
<label class="input__label input__label--hideo" for="register-password">
<i class="fa fa-fw fa-lock icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>
<span class="input input--hideo">
<input class="input__field input__field--hideo" type="password" id="register-repassword" placeholder="请确认密码"
maxlength="15"/>
<label class="input__label input__label--hideo" for="register-repassword">
<i class="fa fa-fw fa-lock icon icon--hideo"></i>
<span class="input__label-content input__label-content--hideo"></span>
</label>
</span>

</section>
</div>
<div class="form-actions">
<a class="btn pull-left btn-link text-muted" onclick="goto_login()">返回登录</a>
<input class="btn btn-primary" type="button" onclick="register()" value="注册" style="color:white;"/>
</div>
</form>
</div>
</div>
</div>
</body>
</html>

6.4 registerSuccess.html

注册成功跳转的页面

<!DOCTYPE html>
<html lang="zh-CN">

<head>
<meta charset="utf-8">
<title>太空题材404错误页面演示_dowebok</title>

</head>

<body>
<div class="mars"></div>

<img src="images/meteor.svg" class="meteor">
<p class="title">恭喜您呐!</p>
<p class="subtitle">注册成功了呢!</p>
<div align="center">
<a class="btn-back">3秒后将自动跳转到登录页面</a>
</div>
<img src="astronaut.svg" class="astronaut">
<img src="images/spaceship.svg" class="spaceship">
</body>
<script language="javascript" type="text/javascript">// 3秒以后再跳转

setTimeout("javascript:location.href='http://localhost:8080/JavaWeb_Demo_08_war/login.html'", 3000);</script>
<style>@keyframes {
from {
transform: translateY(0px);
}

65% {
transform: translateY(15px);
}

to {
transform: translateY(0px);
}
}

html {
height: 100%;
}

body {
background-image: url("../images/star.svg"), linear-gradient(to bottom, #05007A, #4D007D);
height: 100%;
margin: 0;
background-attachment: fixed;
overflow: hidden;
}

.mars {
left: 0;
right: 0;
bottom: 0;
position: absolute;
height: 27vmin;
background: url("../images/mars.svg") no-repeat bottom center;
background-size: cover;
}

.logo-404 {
position: absolute;
margin-left: auto;
margin-right: auto;
left: 0;
right: 0;
top: 16vmin;
width: 30vmin;
}

@media (max-width: 480px) and (min-width: 320px) {
.logo-404 {
top: 45vmin;
}
}

.meteor {
position: absolute;
right: 2vmin;
top: 16vmin;
}

.title {
position: relative;
z-index: 2;
color: white;
font-family: "Nunito", sans-serif;
font-weight: 600;
text-align: center;
font-size: 5vmin;
margin-top: 31vmin;
}

@media (max-width: 480px) and (min-width: 320px) {
.title {
margin-top: 65vmin;
}
}

.subtitle {
position: relative;
z-index: 2;
color: white;
font-family: "Nunito", sans-serif;
font-weight: 400;
text-align: center;
font-size: 3.5vmin;
margin-top: -1vmin;
margin-bottom: 9vmin;
}

.btn-back {
position: relative;
z-index: 2;
border: 1px solid white;
color: white;
height: 5vmin;
padding: 12px;
font-family: "Nunito", sans-serif;
text-decoration: none;
border-radius: 5px;
}

.btn-back:hover {
background: white;
color: #4D007D;
}

@media (max-width: 480px) and (min-width: 320px) {
.btn-back {
font-size: 3.5vmin;
}
}

.astronaut {
position: absolute;
z-index: 1;
top: 18vmin;
left: 10vmin;
height: 30vmin;
animation: floating 3s infinite ease-in-out;
}

@media (max-width: 480px) and (min-width: 320px) {
.astronaut {
top: 2vmin;
}
}

.spaceship {
position: absolute;
z-index: 1;
bottom: 15vmin;
right: 24vmin;
}

@media (max-width: 480px) and (min-width: 320px) {
.spaceship {
width: 45vmin;
bottom: 18vmin;
}
}</style>
</html>

6.5 CSS和JS

css和Js文件,请前往8所载资源路径下载,下载后直接复制粘贴进 前言所载的相应的目录文件即可

7 效果图

7.1 登录成功

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

7.2 登录成功之后直接访问主页

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

7.3 用户名已存在

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

7.4 注册成功

7.5 修改密码成功

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

7.6 未登录直接访问主页

整合Mybatis、Servlet、Mysql、Axios、Filter、Session写一个入门级项目:非常适合初接触JavaWeb的小白白来进阶

8 静态页面资源

  1. 小飞象 login-register-html ​静态资源​
  2. ​杨鑫​​ 太空题材的404错误页面
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