SPA项目开发之动态树形菜单+数据表格+分页

**目录：

1. 树形菜单
2. 数据表格+分页**
   引子：

本节知识点是根据上节知识点的改良，不在用的是模拟数据了，需调用后台数据，实现树形带单和表格分页功能。

1. 树形菜单

LeftNav.vue：

<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>
		<!-- 注意：index是必填的属性  1、index可以看成ID,也就是说它是唯一的
					2、它代表路由的跳转路径-->
		<el-submenu :index="'id_'+m.treeNodeId" v-for="m in menus">
			<template slot="title">
				<i :class="m.icon"></i>
				<span>{{m.treeNodeName}}</span>
			</template>
			<el-menu-item :key="'id_'+m2.treeNodeId" :index="m2.url" v-for="m2 in m.children">
				<template slot="title">
					<i :class="m2.icon"></i>
					<span>{{m2.treeNodeName}}</span>
				</template>
			</el-menu-item>
		</el-submenu>
	</el-menu>
</template>
<script>
	export default {
		data() {
			return {
				collapsed: false,
				menus: []

			};
		},
		created() {
			// 监听事件
			this.$root.Bus.$on("collapsed-side", (v) => {
				this.collapsed = v;
			});
			let url = this.axios.urls.SYSTEM_MENU_TREE;
			this.axios.post(url, {}).then((response) => {
				// console.log(response)
				this.menus = response.data.result
			}).catch((response) => {
				console.log(response)
			});
		}
	}
</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. 数据表格+分页

Articles.vue

<template>
	<div>
		<!-- 搜索筛选 -->
		<el-form :inline="true" :model="formInline" class="user-search">
			<el-form-item label="搜索：">
				<el-input size="small" v-model="formInline.title" placeholder="请输入文章标题"></el-input>
			</el-form-item>
			<el-form-item>
				<el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索</el-button>
				<el-button size="small" type="primary" icon="el-icon-plus" @click="handleEdit()">添加</el-button>
			</el-form-item>
		</el-form>
		<!--列表-->
		<el-table size="small" :data="listData" border element-loading-text="拼命加载中" style="width: 100%;">
			<el-table-column sortable prop="id" label="ID" width="300">
			</el-table-column>
			<el-table-column sortable prop="title" label="文章标题" width="300">
			</el-table-column>
			<el-table-column sortable prop="body" label="文章内容" width="300">
			</el-table-column>
			<el-table-column align="center" label="操作" min-width="300">
				<template slot-scope="scope">
					<el-button size="mini" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
					<el-button size="mini" type="danger" @click="deleteUser(scope.$index, scope.row)">删除</el-button>
				</template>
			</el-table-column>
		</el-table>
		<!-- 分页条 -->
		<el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
		 :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="formInline.rows" layout="total, sizes, prev, pager, next, jumper"
		 :total="pageBean.total">
		</el-pagination>
	</div>
</template>

<script>
	export default {
		data() {
			return {
				listData: [],
				pageBean:{
					total:0
				},
				formInline: {
					title: '',
					page:1,
					rows:10,
					total:0
				},
			};
		},
		methods: {
			search() {
				this.doSearch(this.formInline)
			},
			doSearch(params) {
				let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
				this.axios.post(url, params).then((response) => {
					this.listData = response.data.result;
					this.pageBean=response.data.pageBean.total;
					console.log(response)
				}).catch((response) => {
					console.log(response)
				});
			},
			handleSizeChange(rows) {
				console.log("页码大小发生改变的时候触发！！"+rows)
				this.formInline.page = 1;
				this.formInline.rows = rows;
				this.search();
			},
			handleCurrentChange(page) {
				console.log("当前页页码大小发生改变的时候触发！！"+page)
				this.formInline.page = page;
				this.search();
			}
		},
		created() {
			this.doSearch({})
		}
	}
</script>

<style>

</style>

挂载：
index.js

import Vue from 'vue'
import Router from 'vue-router'
import login from '@/views/login'
import reg from '@/views/reg'
import AppMain from '@/components/AppMain'
import Articles from '@/views/sys/Articles'

Vue.use(Router)

export default new Router({
	routes: [{
		path: '/',
		name: 'login',
		component: login
	},
	{
		path: '/login',
		name: 'login',
		component: login
	},
	{
		path: '/reg',
		name: 'reg',
		component: reg
	},
	{
		path: '/AppMain',
		name: 'AppMain',
		component: AppMain,
		children:[
			{
				path: '/sys/Articles',
				name: 'Articles',
				component: Articles
			}
		]
	}]
})

效果：