ElementUI的背景
是一套基于Vue.js的桌面端组件库，由饿了么前端团队开发维护。它提供了丰富的UI组件和交互效果，可以帮助开发者快速构建出美观、易用的Web应用程序。ElementUI的背景可以追溯到2016年，当时饿了么团队正在开发一款新的后台管理系统，他们发现市面上缺乏一款符合他们需求的组件库，于是决定自己开发一套。经过两年的不断迭代和完善，ElementUI已经成为了Vue.js生态圈中非常受欢迎的组件库之一。
一、动态树
以下的全部内容基于上篇博客的代码进行继续编写 : 使用ElementUI结合Mock完成主页
( 1 ) 数据表
数据表的创建及数据添加
表结构
表数据
( 2 ) 后端
在自动生成的名为 : ModuleMapper.xml 配置文件中编写动态SQL
<!--先根据id查询菜单根级目录，再利用上次查询结果collection中column的值id作为递归查询条件，查出所有子菜单，返回结果必须为resultMap，并且值为上面构建的resultMap的id值--> <select id="queryChildNodeByPid" resultMap="BaseResultMap" parameterType="int"> select <include refid="Base_Column_List"/> from t_module_vue where pid=#{value} </select>
在自动生成的接口 ModuleMapper 编写查询的方法
List<Module> queryChildNodeByPid(Integer id);
并且在自己为菜单创建的接口里进行编写方法之后，再到实现类里面进行重新。
在控制器中编写访问方法的地址 名为:ModuleController
package com.zking.ssm.controller; import com.zking.ssm.model.Module; import com.zking.ssm.model.RoleModule; import com.zking.ssm.model.TreeNode; import com.zking.ssm.service.IModuleService; import com.zking.ssm.util.JsonResponseBody; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import java.util.List; @Controller @RequestMapping("/module") public class ModuleController { @Autowired private IModuleService moduleService; @RequestMapping("/queryRootNode") @ResponseBody public JsonResponseBody<List<Module>> queryRootNode(){ try { List<Module> modules = moduleService.queryRootNode(-1); return new JsonResponseBody<>("OK",true,0,modules); } catch (Exception e) { e.printStackTrace(); return new JsonResponseBody<>("初始化首页菜单错误",false,0,null); } } }
( 2 ) 前端
在src/api目录下增加action.js的地址配置：
/** * 对后台请求的地址的封装，URL格式如下： * 模块名_实体名_操作 */ export default { 'SERVER': 'http://localhost:8080/ssm', //服务器地址 'SYSTEM_USER_DOLOGIN': '/user/userLogin', //登陆请求 'SYSTEM_USER_DOREG': '/user/userRegister', //注册请求 'SYSTEM_MENU': '/module/queryRootNode', //左侧菜单导航数据请求 'SYSTEM_BookList': '/book/queryBookPager', //书籍的后端数据请求 'getFullPath': k => { //获得请求的完整地址，用于mockjs测试时使用 return this.SERVER + this[k]; } }
AppMain.vue的组件代码中修改<template>标签中的代码
<template> <el-container class="main-container"> <el-aside v-bind:class="asideClass"> <LeftNav></LeftNav> </el-aside> <el-container> <el-header class="main-header"> <TopNav></TopNav> </el-header> <el-main class="main-center"> <router-view></router-view> </el-main> </el-container> </el-container> </template>
LeftNav.vue编写组件中的代码
<template> <el-menu router :default-active="$route.path" default-active="2" class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b" :collapse="collapsed"> <!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$route.path" unique-opened class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b"> --> <div class="logobox"> <img class="logoimg" src="../assets/img/logo.png" alt=""> </div> <el-submenu v-for="m in menus" :index="'idx'+m.id" :key="'key'+m.id"> <template slot="title"> <i :class="m.icon"></i> <span>{{m.text}}</span> </template> <el-menu-item v-for="n in m.modules" :index="n.url" :key="'key'+n.id"> <i :class="n.icon"></i> <span>{{n.text}}</span> </el-menu-item> </el-submenu> </el-menu> </template> <script> export default { data() { return { collapsed: false, menus:[] } }, created() { this.$root.bus.$on('shrink', t => { this.collapsed = t; }); //获取后台请求数据的地址 let url = this.axios.urls.SYSTEM_MENU; this.axios.get(url, {}).then(d => { console.log(d) this.menus=d.data.rows; }).catch(e => {}); } } </script> <style> .el-menu-vertical-demo:not(.el-menu--collapse) { width: 240px; min-height: 400px; } .el-menu-vertical-demo:not(.el-menu--collapse) { border: none; text-align: left; } .el-menu-item-group__title { padding: 0px; } .el-menu-bg { background-color: #1f2d3d !important; } .el-menu { border: none; } .logobox { height: 40px; line-height: 40px; color: #9d9d9d; font-size: 20px; text-align: center; padding: 20px 0px; } .logoimg { height: 40px; } </style>
在src/views目录中创建book文件的创建以下两个组件：
AddBook.vue
<template> <h1>书籍的新增</h1> </template> <script> </script> <style> </style>
BookList.vue
<template> <h1>书籍的数据</h1> </template> <script> </script> <style> </style>
在src/router目录中的index.js下配置路径：
import Vue from 'vue' import Router from 'vue-router' import HelloWorld from '@/components/HelloWorld' import AppMain from '@/components/AppMain' import TopNav from '@/components/TopNav' import LeftNav from '@/components/LeftNav' import Home from '@/views/Home' import About from '@/views/About' import AboutMe from '@/views/AboutMe' import AboutMeaning from '@/views/AboutMeaning' import Login from '@/views/Login' import Register from '@/views/Register' import AddBook from '@/views/book/AddBook' import BookList from '@/views/book/BookList' Vue.use(Router) export default new Router({ routes: [{ path: '/', name: 'Login', component: Login }, { path: '/Register', name: 'Register', component: Register }, { path: '/AppMain', name: 'AppMain', component: AppMain, children: [{ path: '/TopNav', name: 'TopNav', component: TopNav }, { path: '/LeftNav', name: 'LeftNav', component: LeftNav },{ path: '/book/AddBook', name: 'AddBook', component: AddBook }, { path: '/book/BookList', name: 'BookList', component: BookList }] } // { // path: '/', // name: 'Home', // component: Home // }, // { // path: '/Home', // name: 'Home', // component: Home // }, // { // path: '/About', // name: 'About', // component: About, // children:[{ // path: '/', // name: 'AboutMe', // component: AboutMe // },{ // path: '/AboutMe', // name: 'AboutMe', // component: AboutMe // },{ // path: '/AboutMeaning', // name: 'AboutMeaning', // component: AboutMeaning // }] // } ] })
开启前端和后端项目的服务进行访问
效果如图 :
二、书籍管理
数据表
表结构
后端
在书籍对象的控制器中配置方法访问路径
package com.zking.ssm.controller; import com.zking.ssm.model.Book; import com.zking.ssm.service.IBookService; import com.zking.ssm.util.JsonResponseBody; import com.zking.ssm.util.PageBean; import com.zking.ssm.vo.BookFileVo; import org.apache.commons.io.IOUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.io.OutputStream; import java.net.URLEncoder; import java.util.List; import java.util.Map; @Controller @RequestMapping("/book") public class BookController { @Autowired private IBookService bookService; @RequestMapping("/queryBookPager") @ResponseBody public JsonResponseBody<List<Book>> queryBookPager(Book book, HttpServletRequest req){ try { PageBean pageBean=new PageBean(); pageBean.setRequest(req); System.out.println(req.getRequestURL()); System.out.println(book); List<Book> books = bookService.queryBookPager(book, pageBean); return new JsonResponseBody<>("OK",true,pageBean.getTotal(),books); } catch (Exception e) { e.printStackTrace(); return new JsonResponseBody<>("分页查询书本失败",false,0,null); } } }
前端
在名为 : BookList.vue 的组件中编写
<template> <div class="Book" style="padding: 30px;"> <!-- 输入框搜索 --> <el-form :inline="true" class="demo-form-inline"> <el-form-item label="书籍名称 : "> <el-input v-model="bookname" placeholder="书籍名称"></el-input> </el-form-item> <el-form-item> <el-button type="primary" plain @click="onSubmit">查询</el-button> </el-form-item> </el-form> <!-- 书籍的书籍表格 --> <el-table :data="tableData" style="width: 100%"> <el-table-column prop="id" label="书籍ID"></el-table-column> <el-table-column prop="bookname" label="书籍名称"></el-table-column> <el-table-column prop="price" label="书籍价格"></el-table-column> <el-table-column prop="booktype" label="书籍类型"></el-table-column> </el-table> <!-- 分页 --> <div class="block" style="padding: 20px;"> <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="page" background :page-sizes="[10, 20, 30, 40]" :page-size="rows" layout="total, sizes, prev, pager, next, jumper" :total="total"> </el-pagination> </div> </div> </template> <script> export default { data() { return { bookname: '', tableData: [], rows: 10, total: 0, page: 1 } }, methods: { handleSizeChange(r) { //当页大小发生变化 let params = { bookname: this.bookname, rows: r, page: this.page } // console.log(params) this.query(params); }, handleCurrentChange(p) { //当前页码大小发生变化 let params = { bookname: this.bookname, rows: this.rows, page: p } // console.log(params) this.query(params); }, query(params) { //获取后台请求书籍数据的地址 let url = this.axios.urls.SYSTEM_BookList; this.axios.get(url, { params: params }).then(d => { console.log(url) this.tableData = d.data.rows; this.total = d.data.total; }).catch(e => {}); }, onSubmit() { let params = { bookname: this.bookname } console.log(params) this.query(params); this.bookname = '' } }, created() { this.query({}) } } </script> <style> </style>
开启前端和后端项目的服务进行访问
查询效果:
分页效果:
