耳目一新的滑块版登录注册界面~

又到了毕业季，大家做毕设的时候总会参考已有的案例，不过大多产品的样式非常单一雷同。本帖博主给大家分享一个比较别树一帜的登录界面，如下：

如果没有账号，点击“去注册”，则会产生如下的效果：

前端的代码这里不细说了，大家直接CV即可：（图片名什么的自定义即可）和图片中稍微有些不一样，因为博主针对数据库和后端进一步完善了修改~

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">

    <title>滑动切换的注册登录界面</title>
    <style>
        * {
            /* 初始化 */
            margin: 0;
            padding: 0;
        }

        body {
            /* 100%窗口高度 */
            height: 100vh;
            /* 弹性布局 水平+垂直居中 */
            display: flex;
            justify-content: center;
            align-items: center;
            /* 渐变背景 */
            /* background: linear-gradient(200deg, #f3e7e9, #e3eeff); */
            background-image: url(S05-登录页面.jpg);
            /*background-color: honeydew;*/
        }

        .container {
            background-color: #fff;
            opacity: 90%;
            width: 650px;
            height: 415px;
            border-radius: 5px;
            /* 阴影 */
            box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);
            /* 相对定位 */
            position: relative;
        }

        .form-box {
            /* 绝对定位 */
            position: absolute;
            top: -10%;
            left: 5%;
            background-color:#4169E1;
            width: 320px;
            height: 500px;
            border-radius: 5px;
            box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2;
            /* 动画过渡 加速后减速 */
            transition: 0.5s ease-in-out;
        }

        .register-box,
        .login-box {
            /* 弹性布局 垂直排列 */
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 100%;
        }

        .hidden {
            display: none;
            transition: 0.5s;
        }

        h1 {
            text-align: center;
            margin-bottom: 25px;
            /* 大写 */
            text-transform: uppercase;
            color: #fff;
            /* 字间距 */
            letter-spacing: 5px;
        }

        input {
            background-color: transparent;
            width: 70%;
            color: #fff;
            border: none;
            /* 下边框样式 */
            border-bottom: 1px solid rgba(255, 255, 255, 0.4);
            padding: 10px 0;
            text-indent: 10px;
            margin: 8px 0;
            font-size: 14px;
            letter-spacing: 2px;
        }

        input::placeholder {
            color: #fff;
        }

        input:focus {
            color: #87CEFA;
            outline: none;
            border-bottom: 1px solid #87CEEB;
            transition: 0.5s;
        }

        input:focus::placeholder {
            opacity: 0;
        }

        .button1 {
            width: 70%;
            margin-top: 35px;
            background-color: #f6f6f6;
            outline: none;
            border-radius: 8px;
            padding: 13px;
            color:	#4169E1;
            font-size: large;
            letter-spacing: 2px;
            border: none;
            cursor: pointer;
        }

        .button1:hover {
            background-color:#000080;
            color: #f6f6f6;
            transition: background-color 0.5s ease;
        }

        .con-box {
            width: 50%;
            /* 弹性布局 垂直排列 居中 */
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            /* 绝对定位 居中 */
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
        }

        .con-box.left {
            left: -2%;
        }

        .con-box.right {
            right: -2%;
        }

        .con-box h2 {
            color: #8e9aaf;
            font-size: 25px;
            font-weight: bold;
            letter-spacing: 3px;
            text-align: center;
            margin-bottom: 4px;
        }

        .con-box p {
            font-size: 13px;
            letter-spacing: 2px;
            color: #8e9aaf;
            text-align: center;
        }

        .con-box span {
            color: 	#4169E1;
        }

        .con-box img {
            width: 150px;
            height: 150px;
            opacity: 0.9;
            margin: 40px 0;
        }

        .con-box button {
            margin-top: 3%;
            background-color: #fff;
            color: 	#1E90FF;
            border: 1px solid #4682B4;
            padding: 6px 10px;
            border-radius: 5px;
            letter-spacing: 1px;
            outline: none;
            cursor: pointer;
        }

        .con-box button:hover {
            background-color: 	#6495ED;
            color: #fff;
        }
    </style>
</head>

<body>
    <div class="container">
        <div class="form-box">
            <!-- 注册 -->
            <form action="/CX_DL1_war/registerServlet" method="get">
                <div class="register-box hidden">
                    <h1>register</h1>
                    <input type="text" placeholder="用户名"name="username1" id="username1">
                    <input type="password" placeholder="密码"  name="password1" id="password1">
                    <input type="submit" class="button1" value="注册">
                </div>
            </form>

            <!-- 登录 -->
            <form action="/CX_DL1_war/loginServlet">
            <div class="login-box">
                <h1>login</h1>
                <input type="text" placeholder="用户名" id="username" name="username">
                <input type="password" placeholder="密码" id="password" name="password">
                <input type="submit" class="button1" value="登录">
            </div>
            </form>
        </div>
        <div class="con-box left">
            <h2>欢迎来到<span>管理系统</span></h2>
            <p>快来完善个人<span>信息</span>吧</p>
            <img src="index1.jpg"alt="">
            <p>已有账号</p>
            <button id="login">去登录</button>
        </div>
        <div class="con-box right">
            <h2>欢迎来到<span>管理系统</span></h2>
            <p>快来看看你的<span>账户</span>吧</p>
            <img src="index2.jpg" alt="">
            <p>没有账号？</p>
            <button id="register">去注册</button>
        </div>
    </div>

    <script>
        // 要操作到的元素
        let login = document.getElementById('login');
        let register = document.getElementById('register');
        let form_box = document.getElementsByClassName('form-box')[0];
        let register_box = document.getElementsByClassName('register-box')[0];
        let login_box = document.getElementsByClassName('login-box')[0];
        // 去注册按钮点击事件
        register.addEventListener('click', () => {
            form_box.style.transform = 'translateX(80%)';
            login_box.classList.add('hidden');
            register_box.classList.remove('hidden');
        })
        // 去登录按钮点击事件
        login.addEventListener('click', () => {
            form_box.style.transform = 'translateX(0%)';
            register_box.classList.add('hidden');
            login_box.classList.remove('hidden');
        })
    </script>
</body>

</html>

接下来详细说一下后端：

一.用户登录

二.用户注册

三.项目源码及项目展示

一.用户登录

开发的流程大致如下：

用户填写用户名密码，提交到LoginServlet
在LoginServlet中使用Mybatis查询数据库，验证密码和用户名是否正确
如果正确，响应登录成功，否则响应登录失败

首先，将上面的html粘贴到Webapp目录下：

然后使用你的Navicat或者DataGrip，创建数据库资源：

create database db1;
use db1;

-- 创建用户表
CREATE TABLE tb_user(
	id int primary key auto_increment,
	username varchar(20) unique,
	password varchar(32)
);

-- 添加数据
INSERT INTO tb_user(username,password) values('zhangsan','123'),('lisi','234');

SELECT * FROM tb_user;

创建pojo实体类目录。

创建实体类User：

package pojo;

public class User {

    private Integer id;
    private String username;
    private String password;

    public Integer getId() {
        return id;
    }

    public void setId(Integer 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;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

添加依赖：（可以不一样但是建议以样版为准）

    <dependencies>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.5</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.27</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.62</version>
        </dependency>
    </dependencies>

然后在resources文件夹下添加Mybatis-config.xml，密码之类的记得改为自己的：（还有5代的驱动jar包改为8代jar包的细节记得修改，懂的都懂，不然会500报错~）

<?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>
    <!--起别名-->
    <typeAliases>
        <package name="pojo"/>
    </typeAliases>

    <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:///db1?useSSL=false"/>
                <property name="username" value="root"/>
                <property name="password" value="219744"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <mapper resource="mapper/UserMapper.xml"/>
    </mappers>
</configuration>

创建mapper目录，创建UserMapper接口：

并在resources中同样创建mapper目录，添加UserMapper.xml文件：

<?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="mapper.UserMapper">

</mapper>

mapper接口中添加如下代码：

 @Select("select * from  tb_user where username= #{username} and password=#{password}")
    User select(@Param("username")String usernaem, @Param("password")String password);

然后定义登录的Servlet：（LoginServlet）

package web;

import com.sun.net.httpserver.HttpServer;
import 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 pojo.User;

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("/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");

        String resource = "mybatis-config.xml";
        InputStream inputStream = Resources.getResourceAsStream(resource);
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        //2.获取SqlSession对象
        SqlSession sqlSession= sqlSessionFactory.openSession();

        UserMapper userMapper=sqlSession.getMapper(UserMapper.class);

        User user=userMapper.select(username,password);
        sqlSession.close();

        resp.setContentType("text/html;charset=utf-8");
        PrintWriter writer=resp.getWriter();

        if(user!=null)
        {
            writer.write("yes~");
        }
        else {
            writer.write("NO~");
        }
    }

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

二.用户注册

mapper接口中添加如下代码：

    @Select("select * from tb_user where username = #{username}")
    User selectByUsername(String username);

    @Insert("insert into tb_user values (null,#{username},#{password})")
    void add(User user);

定义注册的Servlet：

package web;

import 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 pojo.User;

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("/registerServlet")
public class RegisterServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String username=req.getParameter("username1");
        String password=req.getParameter("password1");

        User user=new User();
        user.setUsername(username);
        user.setPassword(password);

        String resource = "mybatis-config.xml";
        InputStream inputStream = Resources.getResourceAsStream(resource);
        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
        //2.获取SqlSession对象
        SqlSession sqlSession= sqlSessionFactory.openSession();

        UserMapper userMapper=sqlSession.getMapper(UserMapper.class);

        User u=userMapper.selectByUsername(username);

        if(u==null)
        {
            resp.setContentType("text/html;charset=utf-8");
            resp.getWriter().write("注册成功~");
            userMapper.add(user);
            sqlSession.commit();
            sqlSession.close();

        }else {
            resp.setContentType("text/html;charset=utf-8");
            resp.getWriter().write("用户已经存在~");
        }
    }

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

    }
}