ssm框架整合实现简单的增删改查功能！！！

参考这个环境配置：ssm框架的简单整合！！！（配置环境）-CSDN博客

思路：建立好环境后，我们要根据Spring MVC三层架构的思想建立项目结构。

?一、controller控制层：（一共有两个类：AccountController和LoginController）

AccountController:

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.controller;

import com.by.pojo.Account;
import com.by.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.util.List;

/**
 * <p>Project: SpringMVC - AccountController</p>
 * <p>Powered by scl On 2024-01-10 16:28:10</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
@Controller
@RequestMapping("/account")
public class AccountController {

    @Autowired
    private AccountService accountService;

    @RequestMapping("/loginAccount")
    public String login(HttpServletRequest request) {
        Integer id = (Integer) request.getAttribute("id");
        String userName = request.getAttribute("userName").toString();
        String password= request.getAttribute("password").toString();
        return "selectAccount";
    }

    /**
     * 查询
     *
     * @param model
     * @return
     */
    @RequestMapping("/selectAccount")
    public String selectAccount(Model model) {
        List<Account> accountList = accountService.selectAccount();
        model.addAttribute("accountList", accountList);
        return "select_Account";
    }

    /**
     * 添加前的跳转页面
     *
     * @return
     */
    @RequestMapping("/toAccount")
    public String toAccount() {
        return "add_Account";
    }

    /**
     * 添加页面
     *
     * @param account
     * @param img
     * @param request
     * @return
     * @throws IOException
     */
    @RequestMapping("/addAccount")
    public String addAccount(Account account, MultipartFile img, HttpServletRequest request) throws IOException {
        if (!img.isEmpty()){
            //获取上传目录
            String realPath = request.getSession().getServletContext().getRealPath("uploads");
            //判断文件是否存在
            File file = new File(realPath);
            if (!file.exists()) {
                file.mkdirs();
            }
            //上传
            String filename = img.getOriginalFilename();
            img.transferTo(new File(realPath, filename));
            account.setHead(filename);
        }
        accountService.addAccount(account);
        return "redirect:selectAccount";
    }

    /**
     * 根据id删除
     *
     * @param id
     * @return
     */
    @GetMapping("/deleteAccount/{id}")
    public String deleteAccount(@PathVariable Integer id) {
        accountService.deleteAccount(id);
        return "redirect:/account/selectAccount";
    }

    /**
     * 数据回显
     *
     * @param id
     * @param model
     * @return
     */
    @RequestMapping("/upAccount/{id}")
    public String upAccount(@PathVariable Integer id, Model model) {
        Account account = accountService.selectAccountById(id);
        model.addAttribute("account", account);
        return "update_Account";
    }

    /**
     * 修改
     */
    @RequestMapping("/updateAccount/{id}")
    public String updateAccount(@PathVariable Integer id, Account account, MultipartFile img, HttpServletRequest request) throws IOException {
        if (!img.isEmpty()){
            //获取上传路径
            String realPath = request.getSession().getServletContext().getRealPath("uploads");
            //判断目录是否存在
            File file = new File(realPath);
            if (!file.exists()) {
                file.mkdirs();
            }
            //上传
            String filename = img.getOriginalFilename();
            img.transferTo(new File(realPath, filename));
            account.setHead(filename);
        }
        account.setId(id);
        accountService.updateAccount(account);
        return "redirect:/account/selectAccount";
    }


}

LoginController:

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.controller;

import com.by.pojo.User;
import com.by.service.LoginService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * <p>Project: SpringMVC - LoginController</p>
 * <p>Powered by scl On 2024-01-11 10:00:36</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
@Controller
@RequestMapping("/account")
public class LoginController {

    @Autowired
    private LoginService loginService;


    @PostMapping("/loginAccount")
    public String loginAccount(User user) {
        User userDome = loginService.login(user);

        if (userDome!=null)return "redirect:selectAccount";
        else return "redirect:/index.jsp";
    }
}

二、相应的service也有两个，两个接口和两个实现类

AccountService：

package com.by.service;

import com.by.pojo.Account;
import com.by.pojo.User;

import java.util.List;

/**
 * <p>Project: SpringMVC - AccountService</p>
 * <p>Powered by scl On 2024-01-10 16:32:52</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
public interface AccountService {
    List<Account> selectAccount();

    void addAccount(Account account);

    void deleteAccount(Integer id);

    Account selectAccountById(Integer id);

    void updateAccount(Account account);

}

AccountServiceImpl：

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.service;

import com.by.mapper.AccountMapper;
import com.by.pojo.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * <p>Project: SpringMVC - AccountServiceImpl</p>
 * <p>Powered by scl On 2024-01-10 16:33:40</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
@Service
@Transactional
public class AccountServiceImpl implements AccountService{

    @Autowired
    private AccountMapper accountMapper;


    @Override
    public List<Account> selectAccount() {
        List<Account> accountList= accountMapper.selectAccount();
        return accountList;
    }

    @Override
    public void addAccount(Account account) {
        accountMapper.addAccount(account);
    }

    @Override
    public void deleteAccount(Integer id) {
        accountMapper.deleteAccount(id);
    }

    @Override
    public Account selectAccountById(Integer id) {
        return accountMapper.selectAccountById(id);
    }

    @Override
    public void updateAccount(Account account) {
        accountMapper.updateAccount(account);
    }
}

LoginService：

package com.by.service;

import com.by.pojo.User;

/**
 * <p>Project: SpringMVC - LoginService</p>
 * <p>Powered by scl On 2024-01-11 10:26:40</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
public interface LoginService {
    User login(User user);

}

LoginServiceImpl：

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.service;

import com.by.mapper.LoginMapper;
import com.by.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

/**
 * <p>Project: SpringMVC - LoginServiceImpl</p>
 * <p>Powered by scl On 2024-01-11 10:27:13</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
@Service
@Transactional
public class LoginServiceImpl implements LoginService {

    @Autowired
    private LoginMapper loginMapper;

    @Override
    public User login(User user) {

        return loginMapper.login(user);

    }
}

三、mapper层也就是我们说的dao层

AccountMapper:

package com.by.mapper;

import com.by.pojo.Account;

import java.util.List;

/**
 * <p>Project: SpringMVC - AccountMapper</p>
 * <p>Powered by scl On 2024-01-10 16:34:53</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
public interface AccountMapper {
    List<Account> selectAccount();

    void addAccount(Account account);

    void deleteAccount(Integer id);

    Account selectAccountById(Integer id);

    void updateAccount(Account account);
}

AccountMapper.xml:

<?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.by.mapper.AccountMapper">
    <insert id="addAccount" parameterType="com.by.pojo.Account">
        insert into account
        <trim prefix="(" suffix=")" suffixOverrides=",">
            <if test="name!=null and name!=''">
                name,
            </if>
            <if test="money!=null ">
                money,
            </if>
            <if test="date!=null ">
                date,
            </if>
            <if test="head!=null and head!='' ">
                head,
            </if>
        </trim>
        <trim prefix="values(" suffix=")" suffixOverrides=",">
            <if test="name!=null and name!=''">
                #{name},
            </if>
            <if test="money!=null ">
                #{money},
            </if>
            <if test="date!=null ">
                #{date},
            </if>
            <if test="head!=null and head!='' ">
                #{head},
            </if>
        </trim>
    </insert>
    <update id="updateAccount" parameterType="com.by.pojo.Account">
        update account
        <set>
            <if test="name!=null and name!=''">
                name=#{name},
            </if>
            <if test="money!=null ">
                money=#{money},
            </if>
            <if test="date!=null ">
                date=#{date},
            </if>
            <if test="head!=null and head!='' ">
                head=#{head},
            </if>
        </set>
            where id =#{id}
    </update>
    <delete id="deleteAccount" parameterType="java.lang.Integer">
        delete
        from account
        where id = #{id}
    </delete>

    <select id="selectAccount" resultType="com.by.pojo.Account">
        select *
        from account
    </select>
    <select id="selectAccountById" parameterType="java.lang.Integer" resultType="com.by.pojo.Account">
        select *
        from account
        where id = #{id};
    </select>
</mapper>

LoginMapper:

package com.by.mapper;

import com.by.pojo.User;

/**
 * <p>Project: SpringMVC - LoginMapper</p>
 * <p>Powered by scl On 2024-01-11 10:28:21</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
public interface LoginMapper {

    User login(User user);
}

LoginMapper.xml:

<?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.by.mapper.LoginMapper">


    <select id="login" parameterType="com.by.pojo.User" resultType="com.by.pojo.User">
        select * from user where username=#{username} and password=#{password}
    </select>
</mapper>

四、实体类：（Account和User）

Account：

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.pojo;

import java.util.Date;

/**
 * <p>Project: SpringMVC - Account</p>
 * <p>Powered by scl On 2024-01-10 16:31:18</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
public class Account {
    private Integer id;
    private String name;
    private Double money;
    private Date date;
    private String head;

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                ", date=" + date +
                ", head='" + head + '\'' +
                '}';
    }

    public String getHead() {
        return head;
    }

    public void setHead(String head) {
        this.head = head;
    }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }
}

User：

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.pojo;

/**
 * <p>Project: SpringMVC - User</p>
 * <p>Powered by scl On 2024-01-11 10:23:01</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
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;
    }
}

这里还用到了自定义的日期转换格式：（converter包下的DateConverter）

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.converter;

import org.springframework.core.convert.converter.Converter;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * <p>Project: SpringMVC - DateConverter</p>
 * <p>Powered by scl On 2024-01-10 19:39:59</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
public class DateConverter implements Converter<String, Date> {
    @Override
    public Date convert(String source) {
        try {
            DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            return format.parse(source);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

全局异常处理页面：GlobalException:

/*
 * Copyright (c) 2020, 2024,  All rights reserved.
 *
 */
package com.by.exception;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * <p>Project: SpringMVC - GlobalException</p>
 * <p>Powered by scl On 2024-01-10 21:15:16</p>
 * <p>描述：<p>
 *
 * @author 孙臣龙 [1846080280@qq.com]
 * @version 1.0
 * @since 17
 */
@Component
public class GlobalException implements HandlerExceptionResolver {

    @Override
    public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) {
        /**
         * 1.发邮件、发信息
         * 2.跳转到错误页面
         */
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("msg",e.getMessage());
        modelAndView.setViewName("exception");

        return modelAndView;
    }
}

接下来是jsp页面：

add_Account.jsp:

<%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2024/1/10
  Time: 19:09
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<form action="/account/addAccount" method="post" enctype="multipart/form-data">
    账号：<input type="text" name="name"><br>
    存款：<input type="text" name="money"><br>
    日期：<input type="text" name="date"><br>
    头像：<input type="file" name="img"><br>
    <input type="submit" value="保存">
</form>
</body>
</html>

exception.jsp:

<%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2024/1/10
  Time: 21:16
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
上传文件不能为空:${msg}
</body>
</html>
<style>
    body{
        background-image: url("https://img.zcool.cn/community/011b7b57f8b52aa84a0d304f567ff0.png@2o.png");
    }
</style>

select_Account.jsp:

<%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2024/1/10
  Time: 16:37
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h2>查询所有账户</h2>
<a href="/account/toAccount" style="text-decoration: none;font-size: 20px;color: brown">添加</a>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
    <tr style="background: antiquewhite ">
        <th>id</th>
        <th>name</th>
        <th>money</th>
        <th>date</th>
        <th>head</th>
        <th>delete</th>

    </tr>
    <c:forEach var="account" items="${accountList}">
        <tr style="text-align: center">
            <td>${account.id}</td>
            <td>${account.name}</td>
            <td>${account.money}</td>
            <td><fmt:formatDate value="${account.date}" pattern="yyyy-MM-dd"></fmt:formatDate></td>
            <td><img src="/uploads/${account.head}" height="40px" width="70px" style="display: block;
    margin: auto;"></td>
            <td><a href="/account/deleteAccount/${account.id}" style="text-decoration: none;color: burlywood ">删除</a>
                /
                <a href="/account/upAccount/${account.id}" style="text-decoration: none;color: burlywood">修改</a></td>
        </tr>
    </c:forEach>
</table>
</body>
</html>

update_Acount.jsp:

<%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2024/1/10
  Time: 21:22
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<form action="/account/updateAccount/${account.id}" method="post" enctype="multipart/form-data">
    账号：<input type="text" name="name" value="${account.name}"><br>
    存款：<input type="text" name="money" value="${account.money}"><br>
    <fmt:formatDate value="${account.date}" pattern="yyyy-MM-dd" var="dateTiem"></fmt:formatDate>
    日期：<input type="text" name="date" value="${dateTiem}"><br>
    头像：<img src="/uploads/${account.head}" height="40px" width="70px"><br>
    <input type="file" name="img" value="${account.head}"><br>
    <input type="submit" value="修改">
</form>
</body>
</html>

index.jsp:

<%--
  Created by IntelliJ IDEA.
  User: admin
  Date: 2023/8/14
  Time: 9:52
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <meta charset="utf-8"/>
    <meta name="viewport" content="width=device-width,initial-scale=1.0"/>
    <title>用户登录</title>
    <link rel="stylesheet" href="index_log.css"/>
    <link href="https:/cdn.staticfile.org/layui/2.8.0/css/layui.css" rel="stylesheet">
    <style type="text/css">
        * {
            /*初始化 清除页面元素的内外边距*/
            padding: 0;
            margin: 0;
            /*盒子模型*/
            box-sizing: border-box;
        }

        body {
            /*弹性布局 让页面元素垂直+水平居中*/
            display: flex;
            justify-content: center;
            align-items: center;
            /*让页面始终占浏览器可视区域总高度*/
            height: 100vh;
            /*背景渐变色*/
            background: linear-gradient(#141e30, #243b55);
            /* background-image: url("https://img0.baidu.com/it/u=2635618108,3973101288&fm=253&fmt=auto&app=120&f=JPEG?w=500&h=281"); */
            background-repeat: no-repeat;

        }

        .login {
            /*弹性布局 让子元素称为弹性项目*/
            display: flex;
            /*让弹性项目垂直排列  原理是改变弹性盒子的主轴方向
      父元素就是弹性盒子  现在改变后的主轴方向是向下了*/
            flex-direction: column;
            /*让弹性项目在交叉轴方向水平居中  现在主轴的方向是向下
      交叉轴的方向是与主轴垂直 交叉轴的方向是向右*/
            align-items: center;
            width: 400px;
            padding: 40px;
            background-color: rgba(0, 0, 0, 0.2);
            box-shadow: 0 15px 25px rgba(0, 0, 0, 0.4);

        }

        .login h2 {
            color: #fff;
            margin-bottom: 30px;
        }

        .login .login_box {
            /*相对定位*/
            position: relative;
            width: 100%;
        }

        .login .login_box input {
            /*清除input框自带的边框和轮廓*/
            outline: none;
            border: none;
            width: 100%;
            padding: 10px 0;
            margin-bottom: 30px;
            color: #fff;
            font-size: 16px;
            border-bottom: 1px solid #fff;
            /*背景颜色为透明色*/
            background-color: transparent;
        }

        .login .login_box label {
            position: absolute;
            top: 0;
            left: 0;
            padding: 10px 0;
            color: #fff;
            /*这个属性的默认值是auto 默认是这个元素可以被点击
      但是如果我们写了none  就是这个元素不能被点击，就好像它可见但是不能用
      可望而不可及*/
            /*这个就是两者的区别*/
            pointer-events: none;
            /*加个过度*/
            transition: all 0.5s;
        }

        /*: focus 选择器是当input获得焦点是触发的样式 + 是相邻兄弟选择器
    去找与input相邻的兄弟label*/
        /*：valid 选择器是判断input 框的内容是否合法，如果合法会执行下面的属性代码，
    不合法就不会执行，我们刚开始写布局的时候给input框写了required 我们删掉看对比
    当没有required的话   input框的值就会被认为一直合法，所以一直都是下方的样式，
    但是密码不会，密码框的值为空，那么这句话就不合法，required不能为空
    当我们给密码框写点东西的时候才会执行以下代码
    */
        .login .login_box input:focus + label,
        .login .login_box input:valid + label {
            top: -20px;
            color: #03e9f4;
            font-size: 12px;
        }

        .login a {
            /*overflow: hidden;*/
            position: relative;
            padding: 10px 20px;
            color: #03e9f4;
            /*取消a表现原有的下划线*/
            text-decoration: none;
            /*同样加个过渡*/
            transition: all 0.5s;
        }

        .login a:hover {
            color: #fff;
            border-radius: 5px;
            background-color: #03e9f4;
            box-shadow: 0 0 5px #03e9f4, 0 0 25px #03e9f4, 0 0 50px #03e9f4, 0 0 100px #03e9f4;
        }

        .login a span {
            position: absolute;
        }

        .login a span:first-child {
            top: 0;
            left: -100%;
            width: 100%;
            height: 2px;
            /*to right 就是往右边 下面的同理*/
            background: linear-gradient(to right, transparent, #03e9f4);
            /*动画 名称  时长 linear是匀速运动 infinite是无限次运动*/
            animation: move1 1s linear infinite;

        }

        .login a span:nth-child(2) {
            right: 0;
            top: -100%;
            width: 2px;
            height: 100%;
            background: linear-gradient(transparent, #03e6f4);
            /*这里多了个0.25s其实是延迟时间*/
            animation: move2 1s linear 0.25s infinite;
        }

        .login a span:nth-child(3) {
            right: -100%;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(to left, transparent, #03e9f4);

            animation: move3 1s linear 0.5s infinite;
        }

        .login a span:last-child {
            left: 0;
            bottom: -100%;
            width: 2px;
            height: 100%;
            background: linear-gradient(#03e9f4, transparent);
            animation: move4 1s linear 0.75s infinite;
        }

        /*写一下动画 */
        @keyframes move1 {
            0% {
                left: -100%;

            }

            50%,
            100% {
                left: 100%;
            }
        }

        @keyframes move2 {
            0% {
                top: -100%;

            }

            50%,
            100% {
                top: 100%;
            }
        }

        @keyframes move3 {
            0% {
                right: -100%;

            }

            50%,
            100% {
                right: 100%;
            }
        }

        @keyframes move4 {
            0% {
                bottom: -100%;

            }

            50%,
            100% {
                bottom: 100%;
            }
        }

        #mybutton {
            background: transparent;
            border-width: 0px;
            outline: none;
            font-size: 22px;
            color: white;
        }
    </style>

</head>

<body>

<form action="/account/loginAccount" method="post">
    <div class="login">
        <h2>用户登录</h2>
        <div class="login_box">
            <!-- required就是不能为空  必须在css效果中有很大的作用 -->

            <input type="text" name='username' id='name' required/> <label for="name">用户名</label>
        </div>
        <div class="login_box">

            <input type="password" name='password' id='pwd' required="required">
            <label for="pwd">密码</label>
        </div>
       
        <a href="/account/loginAccount"> <input type="submit" value="登录" id="mybutton"> <span></span>
            <span></span> <span></span> <span></span>
        </a>

    </div>

</form>

</body>
<script>
    layui.use(function () {
        var form = layui.form;
        var layer = layui.layer;
        // 提交事件
        form.on('submit(demo-login)', function (data) {
            var field = data.field; // 获取表单字段值
            // 显示填写结果，仅作演示用
            layer.alert(JSON.stringify(field), {
                title: '当前填写的字段值'
            });
            // 此处可执行 Ajax 等操作
            // …
            return false; // 阻止默认 form 跳转
        });
    });
</script>
</html>