其他章节请看:
react实战 系列
上一篇我们在 spug 项目中模仿”任务计划“模块实现一个类似的一级导航页面(”My任务计划“),本篇,我们将模仿“Dashboard”来实现一个仪表盘“My Dashboard”。
主要涉及 antd 的Grid
、Card
、Descriptions
等组件、bizcharts
的使用、moment
日期库和页面适配。
注:实现的代码在上一篇的基础上展开。
界面如下:
里面用到了:
Grid
、Card
、Descriptions
描述列表 (文字长度不同,有时会感觉没对齐)bizcharts
中的折线图、柱状图moment
(日期相关的库),比如按天、按月、最近 30 天都很方便无需权限即可访问:
全屏效果:
@antv/data-set
,柱状图和饼状图需要使用bx-tooltip
,自定义 bizcharts 中的 tooltip。折线图和柱状图的 tooltip 都使用了。spug-study> npm i @antv/data-set added 31 packages, and audited 1820 packages in 26s 107 packages are looking for funding run `npm fund` for details 33 vulnerabilities (1 low, 16 moderate, 15 high, 1 critical) To address issues that do not require attention, run: npm audit fix To address all issues (including breaking changes), run: npm audit fix --force Run `npm audit` for details.
spug-study> npm i -D bx-tooltip added 1 package, and audited 1821 packages in 9s 107 packages are looking for funding run `npm fund` for details 33 vulnerabilities (1 low, 16 moderate, 15 high, 1 critical) To address issues that do not require attention, run: npm audit fix To address all issues (including breaking changes), run: npm audit fix --force Run `npm audit` for details.
package.json 变动如下:
"dependencies": { "@antv/data-set": "^0.11.8", } "devDependencies": { "bx-tooltip": "^0.1.6", }
spug 中封装的表格组件,不支持 style和 size。替换一行,以及增加一行:
// src/components/TableCard.js - + 准备 mock 数据
将 mydashboard 模块的的 mock 专门放入一个文件,并在mock/index.js
中引入。
// src\mock\index.js + import './mydashboard'
// src\mock\mydashboard.js import Mock from 'mockjs' // 开发环境引入 mock if (process.env.NODE_ENV === 'development') { Mock.mock('/api/mdashboard/occupancy_rate/', 'get', () => ( {"data": [ { month: "2022-01-01", city: "城市-名字很长很长很长", happiness: 10, per: 90, msg1: '信息xxx' }, { month: "2022-01-01", city: "城市B", per: 30, happiness: 50, msg1: '信息xxx' }, { month: "2022-02-01", city: "城市-名字很长很长很长", happiness: 20, per: 40, msg1: '信息xxx' }, { month: "2022-02-01", city: "城市B", happiness: 20, per: 60, msg1: '信息xxx' }, { month: "2022-03-01", city: "城市-名字很长很长很长", happiness: 30, per: 80, msg1: '信息xxx' },], "error": ""} )) let mIdSeed = 1; Mock.mock('/api/mdashboard/table', 'get', () => ({ "data": [{ "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, { "id": mIdSeed++, "name": "苹果" + mIdSeed, address: '场地' +mIdSeed, time: new Date().toLocaleTimeString() }, ] })) }
路由配置
配置/mdashboard
和/mydashboard
两个路由:
// src\App.js + import MDashboard from './pages/mdashboard/tIndex'; class App extends Component { render() { return ( // 无需权限 + ); } }
// src\routes.js + import MyDashboardIndex from './pages/mdashboard'; export default [ {icon: , title: '工作台', path: '/home', component: HomeIndex}, { icon: , title: 'Dashboard', auth: 'dashboard.dashboard.view', path: '/dashboard', component: DashboardIndex }, + // 我的仪表盘 + { + icon: , + title: 'MyDashboard', + auth: 'mydashboard.mydashboard.view', + path: '/mydashboard', + component: MyDashboardIndex + },
新建仪表盘组件。一个需要权限访问,另一个无需权限即可访问,故将仪表盘提取成一个单独的文件:
// src\pages\mdashboard\Dashboard.js import React from 'react'; export default function () { return ( 仪表盘 ) }
// src\pages\mdashboard\index.js import React from 'react'; import { AuthDiv } from 'components'; import Dashboard from './Dashboard'; export default function () { return ( // AuthDiv 是 spug 封装的与权限相关的组件 需要权限才能访问
) }
// src\pages\mdashboard\tIndex.js import React from 'react'; import Dashboard from './Dashboard'; export default function () { return ( 无需权限也能访问
) }
重启服务,倘若能访问,说明一切就绪,只差仪表盘核心代码。
访问/mydashboard
:

访问/mdashboard
:

仪表盘的核心代码
样式
// src\pages\mdashboard\index.module.less .tdashboardBox { .react{ width: 10px; height: 10px; display: inline-block; background: #52c41a; /* #00000040 */ margin-left: 30px; margin-right: 10px; } // 参考:src\components\index.module.less 中 global :global(.trendBox .ant-card-head-wrapper) { width: 100%; } }
表格(水果信息)
// src\pages\mdashboard\Table.js import React from 'react'; import { observer } from 'mobx-react'; import { Descriptions } from 'antd'; import { TableCard } from 'components'; import store from './store'; @observer class ComTable extends React.Component { // 默认值 static defaultProps = { tableHeight: 353 } // scrollY 以外的高度 excludeScrollY = 120; componentDidMount() { store.fetchRecords() } columns = [{ title: 'id', dataIndex: 'id', },{ title: '名称', dataIndex: 'name', }, { title: '生产地', dataIndex: 'address', }, { title: '时间', dataIndex: 'time', }]; handleExpand = record => { return {record.time} xxx xxxxxx xxxxxxxxxxxxxxx xxx xxxxx xxxxx xxxxxxxxxx xxxxxxxxx } render() { console.log('this.props.tableHeight', this.props.tableHeight, 'y', this.props.tableHeight * this.scrollRadio) return ( ) } } export default ComTable
折线图(居住趋势)
// src\pages\mdashboard\Trend.js import React, { useState, useEffect } from 'react'; import { Card, DatePicker, Modal } from 'antd'; import { Chart, Geom, Axis, Tooltip, Legend } from 'bizcharts'; import { http } from 'libs'; import styles from './index.module.less' // 日期相关的库,比如最近30天等 import moment from 'moment'; /* bizcharts 官网: 通过bx-tooltip插件自定义 为了满足更灵活多变的Tooltip自定义需求,提供bx-tooltip插件来实现ReactNode渲染,摆脱HTML模板的繁琐和死板 */ import useCustTooltip from 'bx-tooltip'; import { Typography, Space } from 'antd'; import store from './store' export default function (props = { cardBodyHeight: 450 }) { // chart 高度占比 const chartHeightRatio = 0.888 const { Text, Link, Title } = Typography; const [loading, setLoading] = useState(true); // 本月第一天 —— 本月最后一天 // const [duration, setDuration] = useState([moment().startOf('month'), moment().endOf('month')]); // 最近三十天 const [duration, setDuration] = useState([moment().subtract(29, 'days'), moment()]); const [res, setRes] = useState([]); useEffect(() => { const strDuration = duration.map(x => x.format('YYYY-MM-DD')) setLoading(true); http.get('/api/mdashboard/occupancy_rate/', { duration: strDuration }) .then(res => { setRes(res) }) .finally(() => setLoading(false)) }, [duration]) // bx-tooltip插件的使用 const [BxChart, CustTooltip] = useCustTooltip.create(Chart, Tooltip); return ( // headStyle、bodyStyle 在这里都是用于适配(响应式) setDuration(val)} /> )}> ) }
饼状图(统计苹果和梨子)
// src\pages\mdashboard\PieChart.js import React from 'react'; import { Typography} from 'antd'; import { Chart, Geom, Axis, Tooltip, Coord, Label, Legend } from 'bizcharts'; import DataSet from '@antv/data-set'; // chartHeight 默认高度 250px ,用于适配 export default function (props = {chartHeight: 250}) { const { Text } = Typography; const { DataView } = DataSet; const data = [ { item: '苹果', count: 10, }, { item: '梨子', count: 20, }, ]; const dv = new DataView(); dv.source(data).transform({ type: 'percent', field: 'count', dimension: 'item', as: 'percent', }); const cols = { percent: { formatter: val => { val = val * 100 + '%'; return val; }, }, }; function getXY(c, { index: idx = 0, field = 'percent', radius = 0.5 }) { const d = c.get('data'); if (idx > d.length) return; const scales = c.get('scales'); let sum = 0; for (let i = 0; i < idx + 1; i++) { let val = d[i][field]; if (i === idx) { val = val / 2; } sum += val; } const pt = { y: scales[field].scale(sum), x: radius, }; const coord = c.get('coord'); let xy = coord.convert(pt); return xy; } return ( 统计苹果和梨子 { const xy = getXY(c, { index: 0 }); c.showTooltip(xy); }} > { // 处理 33.33333333% -> 33.33 percent = (percent * 100).toFixed(2) + '%'; return { name: item, value: percent, }; }, ]} style={{ lineWidth: 1, stroke: '#fff', }} > ); }
柱状图(堆叠柱状图)
// src\pages\mdashboard\BarChart.js import React from "react"; import { Typography, Space } from 'antd' import { Chart, Geom, Axis, Tooltip, Coord, Legend, } from "bizcharts"; import useCustTooltip from 'bx-tooltip'; import DataSet from "@antv/data-set"; export default function (props = {barHeight: 240}) { const [BxChart, CustTooltip] = useCustTooltip.create(Chart, Tooltip); const { Text,Title } = Typography; const retains = ["State", '总比例', 'bad', 'good', 'Total'] const fields = ["好的比例", "坏的比例"] const data = [ { State: "苹果(红富士、糖心苹果)", good: 50, bad: 150, Total: 200, 好的比例: 25, 坏的比例: 75, 总比例: 100 }, { State: "梨子(香梨)", good: 75, bad: 125, Total: 200, 好的比例: 37.5, 坏的比例: 62.5, 总比例: 100 }, ]; const ds = new DataSet(); const dv = ds.createView().source(data); dv.transform({ type: "fold", fields: fields, key: "比例", value: "百分总计", retains: retains // 保留字段集,默认为除fields以外的所有字段 }); return ( 堆叠柱状图 maxNum ? text.split('').slice(0, maxNum - 3).join('') + '...' : text } }} /> {(title, items) => { return { items.map((x, i) => { // 取得原始数据 let oData = x.point._origin return {Object.is(i, 0) && {oData.State} } {oData['比例']}:{oData['百分总计']}% good数量:{oData['good']} bad数量:{oData['bad']} 总数量:{oData['Total']} }) } }} ); }
store.js
// src\pages\mdashboard\store.js import { observable, computed } from 'mobx'; import http from 'libs/http'; const PADDING = 16 class Store { // 表格数据 @observable records = []; // 是否正在请求数据 @observable isFetching = false; // 数据源 @computed get dataSource() { return this.records } fetchRecords = () => { this.isFetching = true; http.get('/api/mdashboard/table') // todo 接口格式或许会调整 .then(res => this.records = res) .finally(() => this.isFetching = false) }; /* 适配相关 */ // 盒子高度,padding 用于给顶部和底部留点空隙。 // 由于笔者没有设计,所以先用 px 实现,之后在在将固定高度改为响应式,937 是固定高度实现后测量出的高度。 @observable baseBoxHeight = 937 - PADDING @observable padding = PADDING // 需要用 this 调用 padding 变量,即 `this.padding` @observable boxHeight = window.innerHeight - this.padding * 2 // 饼图高度比例 @observable pieBoxRatio = 0.20 // 柱状图高度比例 @observable barBoxRatio = 0.23 // “My Dashboard 我的仪表盘” @computed get TitleHeight() { const ratio = 80 / this.baseBoxHeight return this.boxHeight * ratio } // 运行card高度 @computed get todayCardHeight() { const ratio = 75 / this.baseBoxHeight return this.boxHeight * ratio } // “饼图+描述列表+柱状图” body 高度 @computed get statisticBodyHeight() { const ratio = 660 / this.baseBoxHeight return this.boxHeight * ratio } // 居住趋势 body 的 @computed get trendBodyBodyHeight() { const ratio = 385 / this.baseBoxHeight return this.boxHeight * ratio } // 水果信息高度 @computed get configTableHeight() { const ratio = 353 / this.baseBoxHeight return this.boxHeight * ratio } // xys16 得用 computed 才会联动。下面这种写法不会联动 // @observable xys16 = (16 / this.baseBoxHeight) * this.boxHeight @computed get xys16() { return (16 / this.baseBoxHeight) * this.boxHeight } @computed get xys12() { return (12 / this.baseBoxHeight) * this.boxHeight } @computed get xys36() { return (36 / this.baseBoxHeight) * this.boxHeight } @computed get xys24() { return (24 / this.baseBoxHeight) * this.boxHeight } @computed get xys78() { return (78 / this.baseBoxHeight) * this.boxHeight } @computed get pieBoxHeight() { return this.pieBoxRatio * this.boxHeight } @computed get barBoxHeight() { return this.barBoxRatio * this.boxHeight } // card 的 header @computed get cardTitleStyle() { const cardTitleRatio = 57 / this.baseBoxHeight return { display: 'flex', height: this.boxHeight * cardTitleRatio, alignItems: 'center', justifyContent: 'center' } } /* /适配相关 */ } export default new Store()
Dashboard.js
// src\pages\mdashboard\Dashboard.js import React, {useEffect, Fragment} from 'react'; import { Row, Col, Card, Descriptions, Typography, Divider } from 'antd'; import AlarmTrend from './Trend'; import Piechart from './PieChart' import CusTable from './Table'; import CusBarChart from './BarChart'; import Styles from './index.module.less' import { observer } from 'mobx-react'; import store from './store' export default observer(function () { // Typography排版 const { Text } = Typography; useEffect(() => { // 响应式 window.addEventListener("resize", function(){ // padding,用于留点间距出来 store.boxHeight = window.innerHeight - store.padding * 2 }, false); }, []) return ( // Fragment 用于包裹多个元素,却不会被渲染到 dom {/* 使用单一的一组 Row 和 Col 栅格组件,就可以创建一个基本的栅格系统,所有列(Col)必须放在 Row 内。 */} {/* 可以省略 px */} {/* 如果将字体和padding 改为响应式,height 设置或不设置还是有差别的,设置 height 会更准确 */} My Dashboard 我的仪表盘
{/* gutter:水平垂直间距都是 响应式 16 */} {/* 24 栅格系统。 */} {/* 垂直居中 */} {/* 文字大小 */} 运行为绿色,否则为灰色: 运行 {/* Descriptions描述列表,常见于详情页的信息展示。这里总是显示两列。 */} {/* spug 中“Dashboard”的“最近30天登录”是用的就是Descriptions,缺点是不像 table 对齐。当文字长度不同,会看起来错乱。 */} {/* 样式,用于适配,即垂直居中 */} 描述列表 5个 2022-04-21 看不完整就将鼠标移上来 {/* 超A、超B、超C、超D, */}
) })
index.js
// src\pages\mdashboard\index.js import React from 'react'; import { AuthDiv } from 'components'; import Dashboard from './Dashboard'; import styles from './index.module.less' export default function () { return ( ) }
tIndex.js
// src\pages\mdashboard\tIndex.js // 无需权限即可访问 import React from 'react'; import Dashboard from './Dashboard'; import store from './store'; import styles from './index.module.less' export default function () { return ( ) }
重启服务,效果如下:

bizcharts
注:spug 项目中使用的版本是3.x
。参考文档时不要搞错。
API文档
上面我们安装的其中一个依赖包bx-tooltip
就来自这里。

实战
实战其实就是一些 bizcharts 使用上的一些答疑
。例如“内容显示不完整”,有可能就是因为 padding 的原因。

图表示例
例如我们使用的堆叠柱状图
的用法示例就参考这里:

点击进入示例,修改左边源码,右侧显示也会同步,非常方便我们在线研究和学习:

高度自适应
bizcharts 有宽度自适应,但没有实现高度的自适应。

笔者高度自适应的做法:将高度全部改为百分比。

具体做法如下:
- 由于没有设计,故先用固定像素实现界面
- 取得浏览器的窗口高度 window.innerHeight,笔者这里是 937
- 将“标签盒子”、“卡片头部高度”、卡片 body 部分等全部改为百分比
核心代码如下:
// src\pages\mdashboard\store.js const PADDING = 16 class Store { @observable baseBoxHeight = 937 - PADDING @observable padding = PADDING // 仪表盘盒子高度 @observable boxHeight = window.innerHeight - this.padding * 2 // 饼图高度比例。根据之前的效果算出来的 @observable pieBoxRatio = 0.20 // 柱状图高度比例 @observable barBoxRatio = 0.23 // “My Dashboard 我的仪表盘” 高度 @computed get TitleHeight() { const ratio = 80 / this.baseBoxHeight return this.boxHeight * ratio } // 运行card高度 @computed get todayCardHeight() { const ratio = 75 / this.baseBoxHeight return this.boxHeight * ratio } // “饼图+描述列表+柱状图” body 高度 @computed get statisticBodyHeight() { const ratio = 660 / this.baseBoxHeight return this.boxHeight * ratio } // 居住趋势 body 的高度 @computed get trendBodyBodyHeight() { const ratio = 385 / this.baseBoxHeight return this.boxHeight * ratio } // xys16 得用 computed 才会联动。下面这种写法不会联动 @computed get xys16() { return (16 / this.baseBoxHeight) * this.boxHeight } // 饼状图盒子高度 @computed get pieBoxHeight() { return this.pieBoxRatio * this.boxHeight } // card 的 header 比例 @computed get cardTitleStyle() { const cardTitleRatio = 57 / this.baseBoxHeight return { display: 'flex', height: this.boxHeight * cardTitleRatio, alignItems: 'center', justifyContent: 'center' } } }
问题
实现过程中出现如下两个问题:一个是折线图的 Y 轴乱序
,一个是堆叠柱状图有一节空白
。

原因是值不小心弄成了字符串
,改为数字
类型即可。
其他章节请看:
react实战 系列
热门文章