一、前言

在上一篇博文我们搭建了首页导航和左侧菜单，但是我们的左侧菜单是死数据今天我们就来把死的变成活的，并且完成右侧内容的书籍数据表格的展示与分页效果，话不多说上代码！

二、左侧动态树实现

2.1.后台数据接口定义

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);}}@RequestMapping("/queryElementTree")@ResponseBodypublic JsonResponseBody<List<TreeNode>> queryElementTree(){try {List<TreeNode> modules = moduleService.queryTreeNode(-1);return new JsonResponseBody<>("OK",true,0,modules);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("初始化ElementUI的Tree组件错误",false,0,null);}}@RequestMapping("/addRoleModule")@ResponseBodypublic JsonResponseBody<?> addRoleModule(RoleModule roleModule){try {moduleService.addRoleModule(roleModule);return new JsonResponseBody<>("新增角色权限成功",true,0,null);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("新增角色权限失败",false,0,null);}}@RequestMapping("/queryModuleByRoleId")@ResponseBodypublic JsonResponseBody<List<String>> queryModuleByRoleId(RoleModule roleModule){try {List<String> modules = moduleService.queryModuleByRoleId(roleModule);return new JsonResponseBody<>("OK",true,0,modules);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("获取角色权限失败",false,0,null);}}
}

2.2.前端导航菜单绑定

api

/*** 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/', //服务器'SYSTEM_USER_DOLOGIN': '/user/userLogin', //登陆'SYSTEM_USER_DOREG': '/user/userRegister', //注册'SYSTEM_USER_MENUS': '/module/queryRootNode', //左侧'BOOK_LIST': '/book/queryBookPager', //书籍列表'getFullPath': k => { //获得请求的完整地址，用于mockjs测试时使用return this.SERVER + this[k];}
}

LeftNav

<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="'idx_'+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="'idx_'+m2.id"><i :class="m2.icon"></i><span>{{m2.text}}</span></el-menu-item></el-submenu><!-- <el-submenu index="1"><template slot="title"><i class="el-icon-location"></i><span>导航一</span></template><el-menu-item-group><template slot="title">分组一</template><el-menu-item index="1-1">选项1</el-menu-item><el-menu-item index="1-2">选项2</el-menu-item></el-menu-item-group><el-menu-item-group title="分组2"><el-menu-item index="1-3">选项3</el-menu-item></el-menu-item-group><el-submenu index="1-4"><template slot="title">选项4</template><el-menu-item index="1-4-1">选项1</el-menu-item></el-submenu></el-submenu><el-menu-item index="2"><i class="el-icon-menu"></i><span slot="title">导航二</span></el-menu-item><el-menu-item index="3" disabled><i class="el-icon-document"></i><span slot="title">导航三</span></el-menu-item><el-menu-item index="4"><i class="el-icon-setting"></i><span slot="title">导航四</span></el-menu-item>--></el-menu>
</template>
<script>export default {data(){return{collapsed:false,menus:[]}},created() {this.$root.Bus.$on('aaa',v=>{this.collapsed=v;});let url=this.axios.urls.SYSTEM_USER_MENUS;this.axios.get(url,{}).then(r=>{console.log(r)this.menus=r.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>

2.3.根据数据渲染页面

1.配置路由与路由路径的关系

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}]}]
})

在AppMain.js中显示组件就需要加上

<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><script>// 导入组件import TopNav from '@/components/TopNav.vue'import LeftNav from '@/components/LeftNav.vue'// 导出模块export default {components: {TopNav,LeftNav},data() {return {asideClass: "main-aside"}},created(){this.$root.Bus.$on('aaa',r=>{this.asideClass=r ? 'main-aside-collapsed':'main-aside';});}};
</script>
<style scoped>.main-container {height: 100%;width: 100%;box-sizing: border-box;}.main-aside-collapsed {/* 在CSS中，通过对某一样式声明! important ，可以更改默认的CSS样式优先级规则，使该条样式属性声明具有最高优先级 */width: 64px !important;height: 100%;background-color: #334157;margin: 0px;}.main-aside {width: 240px !important;height: 100%;background-color: #334157;margin: 0px;}.main-header,.main-center {padding: 0px;border-left: 2px solid #333;}
</style>

3.分页

后台

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("/addBook")@ResponseBodypublic JsonResponseBody<?> addBook(Book book){try {bookService.insert(book);return new JsonResponseBody<>("新增书本成功",true,0,null);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("新增书本失败",false,0,null);}}@RequestMapping("/editBook")@ResponseBodypublic JsonResponseBody<?> editBook(Book book){try {bookService.updateByPrimaryKey(book);return new JsonResponseBody<>("编辑书本成功",true,0,null);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("编辑书本失败",false,0,null);}}@RequestMapping("/delBook")@ResponseBodypublic JsonResponseBody<?> delBook(Book book){try {bookService.deleteByPrimaryKey(book.getId());return new JsonResponseBody<>("删除书本成功",true,0,null);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("删除书本失败",false,0,null);}}@RequestMapping("/queryBookPager")@ResponseBodypublic 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);}}@RequestMapping("/queryBookCharts")@ResponseBodypublic JsonResponseBody<?> queryBookCharts(){try{Map<String, Object> charts = bookService.queryBookCharts();return new JsonResponseBody<>("OK",true,0,charts);}catch (Exception e){e.printStackTrace();return new JsonResponseBody<>("查询统计分析数据失败",false,0,null);}}@RequestMapping("/upload")@ResponseBodypublic JsonResponseBody<?> upload(BookFileVo bookFileVo){try {MultipartFile bookFile = bookFileVo.getBookFile();System.out.println(bookFileVo);System.out.println(bookFile.getContentType());System.out.println(bookFile.getOriginalFilename());return new JsonResponseBody<>("上传成功",true,0,null);} catch (Exception e) {e.printStackTrace();return new JsonResponseBody<>("上传失败",false,0,null);}}@RequestMapping("/download")public void download(HttpServletRequest request, HttpServletResponse response){try {String relativePath = "uploads/1.jpg";String absolutePath = request.getRealPath(relativePath);InputStream is = new FileInputStream(new File(absolutePath));OutputStream out = response.getOutputStream();response.setContentType("application/octet-stream");response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("1.jpg", "UTF-8"));byte[] by = new byte[1024];int len = -1;while (-1 != (len = is.read(by))) {out.write(by);}is.close();out.close();} catch (Exception e) {e.printStackTrace();}}@RequestMapping("/downloadUrl")public void downloadUrl(HttpServletRequest request, HttpServletResponse response){String relativePath = "uploads/1.jpg";String absolutePath = request.getRealPath(relativePath);InputStream is = null;OutputStream out = null;try {is = new FileInputStream(new File(absolutePath));// 设置Content-Dispositionresponse.setHeader("Content-Disposition","attachment;filename=" + URLEncoder.encode("1.jpg", "UTF-8"));out = response.getOutputStream();IOUtils.copy(is, out);response.flushBuffer();System.out.println("完成");} catch (Exception e) {e.printStackTrace();} finally {IOUtils.closeQuietly(is);IOUtils.closeQuietly(out);}}
}

前台

<template><div class="books" style="padding: 20px;"><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-form-item><el-form-item><el-button type="primary" @click="onSubmit">查询</el-button></el-form-item></el-form><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="价格"></el-table-column><el-table-column prop="booktype" label="书籍类别"></el-table-column></el-table><span class="demonstration">完整功能</span><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></template><script>export default {data() {return {bookname: '',tableData: [],rows:10,total:0,page:1,}},methods: {query(params) {let url = this.axios.urls.BOOK_LIST;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}this.query(params);},handleSizeChange(r){let params = {bookname: this.bookname,rows:r,page:this.page}this.query(params);},handleCurrentChange(p){let params = {bookname: this.bookname,rows:this.rows,page:p}this.query(params);}},created() {this.query({});}}
</script><style>
</style>