SPA项目开发之动态树、数据表格、分页

SPA项目开发之动态树、数据表格、分页

思路:

1. 准备好后台（左侧树，带分页的文章查询）
2. 将左侧树的数据绑定到elementui中的menu标签上
3. 新增一个自定义组件用来展示文章列表的
4. 绑定elementui提供的分页组件来完成分页功能

数据库（测试数据）：

t_vue_tree_node

t_vue_articles

动态生成NavMenu导航菜单(只支持2级菜单)

<el-menu key="" index="">
        <el-submenu>
          <template slot="title">
            <i class="el-icon-location"></i>
            <span>导航一</span>
          </template>
          <template slot="title">分组一</template>
          <el-menu-item route="">

vue+element的el-menu组件实现路由跳转及当前项的设置

	    <el-menu router :default-active="$route.path">
        <el-menu-item index="/company/userManager">用户管理</el-menu-item>

注1：要实现路由跳转，先要在el-menu标签上添加router属性，然后只要在每个el-menu-item标签内的index属性设置一下url即可实现点击el-menu-item实现路由跳转。
注2：导航当前项，在el-menu标签中绑定 :default-active="$ route.path",注意是绑定属性，不要忘了加“:”,当$route.path等于el-menu-item标签中的index属性值时则该item为当前项
注3：后台t_tree_node表有几个节点的url为空，则会导致几个节点样式会一致

index.js

import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import login from '@/view/login'
import Reg from '@/view/Reg'
import AppMain from '@/components/AppMain'
import Articles from '@/view/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
           }
        ]
        }
    ]
})

LeftNav.vue

<template>
	<el-menu router :default-active="$route.path" class="el-menu-vertical-demo" background-color="#334157"
	 text-color="#fff" active-text-color="#ffd04b" :collapse="collapsed">
		<!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$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(){
			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(function(error) {
				console.log(error);
			});
		}
	}
</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>

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="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-form-item> 
		</el-form>
		
		<!-- 列表 -->
		<el-table size="small" :data="listData" border element-loading-text="" 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>
		<!-- 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) => {
					console.log(response);
					this.listData = response.data.result;
					this.pageBean = response.data.pageBean;
				}).catch(function(error) {
					console.log(error);
				});
			},
			handleSizeChange(rows) {
				console.log('页码大小发生改变是时候触发！！！'+rows);
				this.formInline.page = 1;
				this.formInline.rows = rows;
				this.search();
			},
			handleCurrentChange(page) {
				console.log('当前页页码发生改变是时候触发！！！'+page);
				this.formInline.page = page;
				this.search();
			}
		},
		created() {
			this.doSearch({});
		}
	}
</script>

<style>

</style>

效果图：