使用ElementUI结合Vue完善主页的导航菜单和书籍管理的后台数据分页查询

一、动态树

( 1 ) 数据表

( 2 ) 后端

( 2 ) 前端

二、书籍管理

数据表

后端

前端

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_vuewhere 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 {@Autowiredprivate IModuleService moduleService;@RequestMapping("/queryRootNode")@ResponseBodypublic 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 {@Autowiredprivate IBookService bookService;@RequestMapping("/queryBookPager")@ResponseBodypublic 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>