目录

框架：

编程思维：

MVC架构:

前端——组件式开发

开发思路梳理：

后端——

前端——

效果图

信息列表：

修改用户编辑

新增用户

删除用户

数据清空

批量上传

框架：

后端：JAVA-SpringBoot2.6、包管理器Maven3.6、JDK1.8

数据：MySQL5.7、可视化工具Navicat

前端：Vue2.x、Element-ui3.x、jqurey、axios

编程思维：

后端——自底向上思想：

数据表——》实体层（pojo/entity）：实体类——》映射层（dao/mapper）：编写数据库连接接口和mapper.xml（使用Mybatis语句连接数据库）——》业务层（service）：Service接口和ServiceImpl实现类——》控制层（Controller）：Controller类

MVC架构:

M——模型/数据

V——视图/页面

C——控制/数据页面

前端——组件式开发

重要知识点

VUE的基本语法

（Components）组件式开发

（Router）路由转发

（Axios）网络请求

（VueX）状态管理

开发思路梳理：

后端——

创建数据库、数据表

后端连接数据库

进行数据映射

实体类

Mybatis——》数据库映射

Mapper接口（Dao/mapper）

业务层接口与实现

接口中定义抽象函数

实现基本上就是调用Dao层方法

控制层

控制类

前端——

vue支持组件式开发，每个组件基本上都有三大模块组成：<template/>、<scripts/>、<style/>

基本语法不过多说，重点在于Router（路由配置）和Axios（网络请求）。

路由配置时注意引入组件，

按格式设置子路由。

import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
import Layout from '@/layout'

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },

  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [{
      path: 'dashboard',
      name: 'Dashboard',
      component: () => import('@/views/dashboard/index'),
      meta: { title: 'Dashboard', icon: 'dashboard' }
    }]
  },

  {
    path: '/user',
    component: Layout,
    redirect: '/user',
    name: 'User',
    meta: { title: 'User', icon: 'el-icon-s-help' },
    children: [
      {
        path: 'list',
        name: 'List',
        component: () => import('@/views/user/userlist'),
        meta: { title: 'User', icon: 'table' }
      }
    ]
  },

  {
    path: '/userupload',
    component: Layout,
    redirect: '/userupload',
    name: 'Upload',
    meta: { title: 'Upload', icon: 'el-icon-s-help' },
    children: [
      {
        path: 'userupload',
        name: 'Upload',
        component: () => import('@/views/upload/index'),
        meta: { title: 'Upload', icon: 'table' }
      }
    ]
  },

  {
    path: '/example',
    component: Layout,
    redirect: '/example/table',
    name: 'Example',
    meta: { title: 'Example', icon: 'el-icon-s-help' },
    children: [
      {
        path: 'table',
        name: 'Table',
        component: () => import('@/views/table/index'),
        meta: { title: 'Table', icon: 'table' }
      },
      {
        path: 'tree',
        name: 'Tree',
        component: () => import('@/views/tree/index'),
        meta: { title: 'Tree', icon: 'tree' }
      }
    ]
  },

  {
    path: '/form',
    component: Layout,
    children: [
      {
        path: 'index',
        name: 'Form',
        component: () => import('@/views/form/index'),
        meta: { title: 'Form', icon: 'form' }
      }
    ]
  },

  {
    path: '/nested',
    component: Layout,
    redirect: '/nested/menu1',
    name: 'Nested',
    meta: {
      title: 'Nested',
      icon: 'nested'
    },
    children: [
      {
        path: 'menu1',
        component: () => import('@/views/nested/menu1/index'), // Parent router-view
        name: 'Menu1',
        meta: { title: 'Menu1' },
        children: [
          {
            path: 'menu1-1',
            component: () => import('@/views/nested/menu1/menu1-1'),
            name: 'Menu1-1',
            meta: { title: 'Menu1-1' }
          },
          {
            path: 'menu1-2',
            component: () => import('@/views/nested/menu1/menu1-2'),
            name: 'Menu1-2',
            meta: { title: 'Menu1-2' },
            children: [
              {
                path: 'menu1-2-1',
                component: () => import('@/views/nested/menu1/menu1-2/menu1-2-1'),
                name: 'Menu1-2-1',
                meta: { title: 'Menu1-2-1' }
              },
              {
                path: 'menu1-2-2',
                component: () => import('@/views/nested/menu1/menu1-2/menu1-2-2'),
                name: 'Menu1-2-2',
                meta: { title: 'Menu1-2-2' }
              }
            ]
          },
          {
            path: 'menu1-3',
            component: () => import('@/views/nested/menu1/menu1-3'),
            name: 'Menu1-3',
            meta: { title: 'Menu1-3' }
          }
        ]
      },
      {
        path: 'menu2',
        component: () => import('@/views/nested/menu2/index'),
        name: 'Menu2',
        meta: { title: 'menu2' }
      }
    ]
  },

  {
    path: 'external-link',
    component: Layout,
    children: [
      {
        path: 'https://panjiachen.github.io/vue-element-admin-site/#/',
        meta: { title: 'External Link', icon: 'link' }
      }
    ]
  },

  // 404 page must be placed at the end !!!
  { path: '*', redirect: '/404', hidden: true }
]

const createRouter = () => new Router({
  // mode: 'history', // require service support
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRoutes
})

const router = createRouter()

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}

export default router

网络请求时：

注意：数据绑定、双向绑定、获取一行的数据、网络请求传参……

<template>
  <div>
    <el-table :data="tableData" style="width: 100%" max-height="250">
      <el-table-column prop="id" label="用户ID" width="300"> </el-table-column>
      <el-table-column prop="account" label="用户账号" width="300">
      </el-table-column>
      <el-table-column fixed prop="username" label="用户姓名" width="100">
      </el-table-column>
      <el-table-column prop="password" label="用户密码" width="300">
      </el-table-column>
      <el-table-column fixed prop="address" label="用户住址" width="100">
      </el-table-column>

      <el-table-column fixed="right" label="操作" width="120">
            <template slot-scope="scope">
              <!-- {{scope.row.id}} -->
              <el-button @click.native.prevent="update_(scope.row)" type="text" size="small">
          修改
            </el-button>
              <el-button @click.native.prevent="delete_(scope.row.id)" type="text" size="small">
          删除
        </el-button>
            </template>
      </el-table-column>
    </el-table>
    <el-row style="float: right">
      <el-button
@click.native.prevent="add()"
type="text"
        >新增数据</el-button
      >
      <el-button
@click.native.prevent="removeAll()"
type="text"
        >数据清空</el-button
      >
    </el-row>
    <!--    新增弹窗-->
    <el-dialog
            title="新增用户"
            :visible.sync="dialogVisible_add"
            width="30%">
        <el-form ref="form" :model="user" label-width="80px">
            <el-form-item label="用户账号">
                <el-input v-model="user.account"></el-input>
            </el-form-item>
            <el-form-item label="用户姓名">
                <el-input v-model="user.username"></el-input>
            </el-form-item>
            <el-form-item label="用户密码">
                <el-input v-model="user.password"></el-input>
            </el-form-item>
            <el-form-item label="用户地址">
                <el-input v-model="user.address"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="dialogVisible_add = false">取 消</el-button>
            <el-button type="primary" @click="save_add">确 定</el-button>
        </span>
    </el-dialog>
    <!--    修改弹窗-->
    <el-dialog
            title="修改用户"
            :visible.sync="dialogVisible_up"
            width="30%">
        <el-form ref="form" :model="user" label-width="80px">
            <el-form-item label="用户账号">
                <el-input v-model="user.account"></el-input>
            </el-form-item>
            <el-form-item label="用户姓名">
                <el-input v-model="user.username"></el-input>
            </el-form-item>
            <el-form-item label="用户密码">
                <el-input v-model="user.password"></el-input>
            </el-form-item>
            <el-form-item label="用户地址">
                <el-input v-model="user.address"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="dialogVisible_up = false">取 消</el-button>
            <el-button type="primary" @click="save_up">确 定</el-button>
        </span>
    </el-dialog>
  </div>
</template>

<script>
import axios from 'axios'

export default {
  data() {
    return {
      tableData: [], // 数据列表
      dialogVisible_add: false, // 新增弹窗控制器
      dialogVisible_up: false, // 新增弹窗控制器
      user: { // 数据封装
        account: '',
        username: '',
        password: '',
        address: ''
      }
    }
  },
  created: function() {
    this.loadTableData()
  },
  methods: {
    loadTableData() {
      axios.get('http://localhost:8088/queryAll').then((response) => {
        this.tableData = response.data
      })
    },
    update_(row) {
      this.dialogVisible_up = true
      this.user = row
    },
    delete_(id) {
      // console.log(this.user)
      const data = JSON.stringify(this.user)
      console.log(data)
      if (confirm('是否删除此数据？')) {
        axios.get('http://localhost:8088/remove?id=' + id).then((response) => {
          this.loadTableData()
          location.reload(0)
        })
      } else {
        location.reload(0)
      }
    },
    add() {
      this.user = {}
      this.dialogVisible_add = true
    },
    save_add() {
      // 新增
      axios.post('http://localhost:8088/add', this.user).then((response) => {
        this.dialogVisible_add = false
        this.loadTableData()
      })
    },
    save_up() {
      axios.post('http://localhost:8088/update', this.user).then((response) => {
        this.dialogVisible_up = false
        this.loadTableData()
      })
    },
    removeAll() {
      if (confirm('是否全部删除？')) {
        axios.get('http://localhost:8088/removeAll').then((response) => {
          console.log('已全部删除')
        })
      }
      location.reload(0)
    }
  }
}
</script>

特殊说明：要想在vue中使用JQuery需要下载安装第三方依赖。

更多参考：【Java-SpringBoot+Vue+MySql】项目开发杂记_代码骑士的博客-CSDN博客