SPA项目开发之动态树+数据表格+分页
Posted bayoua
tags:
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1. 后台数据
t_vue_user
t_vue_tree_node
t_vue_articles
2. 动态生成NavMenu导航菜单(只支持2级菜单)
2.1 结构
<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="">
2.2 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$route.path等于el-menu-item标签中的index属性值时则该item为当前项。
注3:后台t_tree_node表有几个节点的url为空,则会导致几个节点样式会一致
2.3 数据表格
<el-table :data="result" style="width: 100%;" :border="true" max-height="550">
<el-table-column prop="id" label="ID" min-width="10" align="center"></el-table-column>
<el-table-column prop="title" label="标题" min-width="20"></el-table-column>
<el-table-column prop="body" label="内容" min-width="70"></el-table-column>
</el-table>
作业1:列表的第一列为序号,为保护数据信息,防止恶意爬虫,不能把后端给的id直接显示,应该显示行号
提示:查el-table文档中关于“自定义索引”相关知识点
附录一:vue中如何修改[数组中][对象的值]
data:
empList:[eid:1,ename:‘zs‘,eid:2,ename:‘ls‘]
this.empList[0].ename="zss";//vue 中是无法检测到根据索引值修改的数据变动的
解决方案:通过Vue数组变异方法可以动态控制数据的增减
// 第一个参数是要修改的数据, 第二个值是修改当前数组的哪一个字段,第三个是要修改为什么值
this.$set(this.empList[index], ‘ename‘, ‘zss‘)
或者
Vue.set(this.empList[index], ‘ename‘, ‘zss‘)
<!-- 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="100" layout="total, sizes, prev, pager, next, jumper"
:total="formInline.total">
</el-pagination>
handleSizeChange(rows)
this.formInline.page = 1;
this.formInline.rows = rows;
this.search();
,
handleCurrentChange(page)
this.formInline.page = page;
this.search();
动态树形菜单
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" >
</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((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>
数据表格和分页、查询
Articles.vue
<template>
<div>
<!-- 搜索框 -->
<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-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" min-width="300">
</el-table-column>
<el-table-column sortable prop="title" label="文章标题" min-width="300">
</el-table-column>
<el-table-column sortable prop="body" label="文章内容" min-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="total">
</el-pagination>
</div>
</template>
<script>
export default
data()
return
listData: [],
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.total = response.data.pageBean.total;
).catch((response) =>
console.log(response);
);
,
handleSizeChange(rows)
console.log(‘页码大小发生改变的时候触发!!!‘);
this.formInline.page = 1;
this.formInline.rows = rows;
this.search();
,
handleCurrentChange(page)
console.log(‘当前页码发生改变的时候触发!!!‘);
this.formInline.page = page;
this.search();
,
created()
this.doSearch();
</script>
<style>
</style>
index.js
import Vue from ‘vue‘
import Router from ‘vue-router‘
import HelloWorld from ‘@/components/HelloWorld‘
import Login from ‘@/views/Login‘
import Reg from ‘@/views/Reg‘
import AppMain from ‘@/components/AppMain‘
import LeftNav from ‘@/components/LeftNav‘
import TopNav from ‘@/components/TopNav‘
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: ‘/LeftNav‘,
name: ‘LeftNav‘,
component: LeftNav
,
path: ‘/TopNav‘,
name: ‘TopNav‘,
component: TopNav
,
path: ‘/sys/Articles‘,
name: ‘Articles‘,
component: Articles
]
]
)
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