前言
在Element UI搭建首页导航和左侧菜单以及Mock.js和（组件通信）总线的运用博文中讲解了首页导航和左侧树形菜单的搭建，今天我们将通过前后端结合将左侧菜单数据变活，以及实现点击动态树右边展示相应内容。并实现对表格的分页模糊查询。
一、动态树的实现
后端mapper.xml,以及biz层都比较简单，这里就不过多讲解了
package com.ctb.ssm.controller; import com.ctb.ssm.model.Module; import com.ctb.ssm.model.RoleModule; import com.ctb.ssm.model.TreeNode; import com.ctb.ssm.service.IModuleService; import com.ctb.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); } } }
3.定义前端发送请求路径
api/action.js
'SYSTEM_MENUS': '/module/queryRootNode', //左侧菜单
4.前端左侧动态树的编写
4.1.发送请求获取数据
let url = this.axios.urls.SYSTEM_MENUS; this.axios.get(url, {}).then(r => { console.log(r); this.menus = r.data.rows; }).catch(e => { })
4.2.遍历左侧菜单
<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="m2 in m.modules" :index="m2.url" :key="'key_'+m2.id"> <i class="m2.icon"></i> <span>{{m2.text}}</span> </el-menu-item> </el-submenu>
效果展示
5.实现左侧菜单点击展示右边内容
先编写两个组件测试效果，也为下面内容进行铺垫
5.1.定义组件
AddBook
<template> <h1>书籍新增</h1> </template> <script> </script> <style> </style>
BookList
<template> <h1>书籍管理</h1> </template> <script> </script> <style> </style>
5.2.定义组件与路由的对应关系
import Vue from 'vue' import Router from 'vue-router' import HelloWorld from '@/components/HelloWorld' import AppMain from '@/components/AppMain' import LeftNav from '@/components/LeftNav' import TopNav from '@/components/TopNav' 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: '/LeftNav', name: 'LeftNav', component: LeftNav }, { path: '/TopNav', name: 'TopNav', component: TopNav },{ path: '/book/AddBook', name: 'AddBook', component: AddBook }, { path: '/book/BookList', name: 'BookList', component: BookList }] } ] })
5.3.渲染组件内容
在AppMain.vue中心区域显示内容处改为以下内容：
<router-view></router-view>
5.4.通过动态路由跳转为当前项内容
router :default-active="$route.path"
效果展示：
二、表格分页模糊查询的实现
1.数据表
2.后端分页模糊查询的实现
这里也就只展示controller层了，有需要的评论区留言或私聊
@RequestMapping("/queryBookPager") @ResponseBody public JsonResponseBody<List<Book>> queryBookPager(Book book, HttpServletRequest req){ try { PageBean pageBean=new PageBean(); pageBean.setRequest(req); 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); } }
3.编写书籍管理请求路径
'SYSTEM_BookList': '/book/queryBookPager', //书籍管理---分页模糊查询
4.编写书籍管理前端
BookList.vue
<template> <div class="books" style="padding: 20px;"> <!-- 1.搜索框 --> <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" @click="onSubmit">搜索</el-button> </el-form-item> </el-form> <!-- 2.数据表格 --> <el-table :data="tableData" stripe style="width: 100%"> <el-table-column prop="id" label="书籍编号" width="180"> </el-table-column> <el-table-column prop="bookname" label="书籍名称" width="180"> </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> <!-- 3.分页条 --> <div class="block" style="padding: 20px;"> <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="page" :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, page:1, total:0 } }, methods: { // 定义一个查询的方法，方便调用减少代码冗余 query(params) { // 向后台请求数据的访问路径 let url = this.axios.urls.SYSTEM_BookList; this.axios.get(url, { params: params }).then(r => { console.log(r); this.tableData = r.data.rows; this.total = r.data.total; }).catch(e => { }) }, onSubmit() { let params = { bookname: this.bookname, } // 调用查询方法 this.query(params); }, handleSizeChange(r) { //当页大小发生变化 // 输出查看 console.log("当前页大小:"+r); let params = { bookname: this.bookname, rows:r, page:this.page } // 调用查询方法 this.query(params); }, handleCurrentChange(p) { //当前页页码发生变化 // 输出查看 console.log("当前页码:"+p); let params = { bookname: this.bookname, page:p, rows:this.rows } // 调用查询方法 this.query(params); } }, created() { // 调用查询方法 this.query({}); } } </script> <style> </style>
效果展示
