Vue.js+HighCharts实现动态请求展示时序数据
本文实例为大家分享了Vue.js+HighCharts实现动态请求展示时序数据的具体代码,供大家参考,具体内容如下
<template> <el-container> <el-header> <el-menu :default-active="activeIndex" class="el-menu-header" mode="horizontal" @select="handleSelect"> <el-menu-item index="1"><router-link :to="{path: '/yun/index' }">首页</router-link></el-menu-item> <el-menu-item index="2"><router-link :to="{path: '/yun/list' }">服务器列表</router-link></el-menu-item> <el-menu-item index="3">控制台</el-menu-item> <el-menu-item index="4">消息中心</el-menu-item> <el-menu-item index="5"><router-link :to="{path: '/yun/about' }">关于我们</router-link></el-menu-item> <el-menu-item @click="toLogin()" v-if="userName === ''">登录</el-menu-item> <el-menu-item> <el-dropdown> <span class="el-dropdown-link" v-if="userName !== ''"> {{ userName }}<i class="el-icon-arrow-down el-icon--right"></i> </span> <el-dropdown-menu slot="dropdown" v-if="userName!==''"> <!-- <el-dropdown-item>登录</el-dropdown-item>--> <el-dropdown-item @click.native="toLogout">退出</el-dropdown-item> </el-dropdown-menu> </el-dropdown> </el-menu-item> </el-menu> </el-header> <el-container style="height: 620px; border: 1px solid #eee"> <el-aside width="200px"> <el-menu default-active="1" class="el-menu-vertical-demo" @open="handleOpen" @close="handleClose"> <el-submenu index="1"> <template slot="title"> <i class="el-icon-location"></i> <span>服务器列表</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> </el-aside> <el-container> <el-main> <div class="x-bar"> <div :id="id" :option="option"></div> </div> </el-main> <!-- <el-footer>--> <!-- </el-footer>--> </el-container> </el-container> </el-container> </template>
<script> import { mapMutations } from 'vuex'; import Vuex from 'vuex' //引入 Vuex import store from '../store' import HighCharts from 'highcharts' export default { name: "YunMonitorServerv", data() { return { userName: "", activeIndex: '1', arr: [], chartData: [], username: this.$route.query.data, idForm: { id: "1" }, id: 'testtt', option: { chart: { zoomType: 'x' }, title: { text: 'cpu.0.percent.active'//表头文字 }, subtitle: { text: document.ontouchstart === undefined ? '鼠标拖动可以进行缩放' : '手势操作进行缩放' }, xAxis: { type: 'datetime', dateTimeLabelFormats: { millisecond: '%H:%M:%S.%L', second: '%H:%M:%S', minute: '%H:%M', hour: '%H:%M', day: '%m-%d', week: '%m-%d', month: '%Y-%m', year: '%Y' } }, tooltip: { dateTimeLabelFormats: { millisecond: '%H:%M:%S.%L', second: '%H:%M:%S', minute: '%H:%M', hour: '%H:%M', day: '%Y-%m-%d', week: '%m-%d', month: '%Y-%m', year: '%Y' } }, yAxis: { title: { text: '使用率' } }, legend: { enabled: false }, plotOptions: { area: { fillColor: { linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 }, stops: [ [0, HighCharts.getOptions().colors[0]], [1, HighCharts.Color(HighCharts.getOptions().colors[0]).setOpacity(0).get('rgba')] ] }, marker: { radius: 2 }, lineWidth: 1, states: { hover: { lineWidth: 1 } }, threshold: null } }, series: [{ type: 'area', name: '使用率', data: [ ] }] } } }, created() { }, mounted() { this.showCharts(); }, methods: { ...mapMutations(['changeLogin']), toLogout() { localStorage.removeItem('Authorization'); localStorage.removeItem('Username'); this.$router.push( { path: "/yun/login", } ) }, toLogin() { this.$router.push( { path: "/yun/login", } ) }, showCharts() { this.flag = true this.$http.get('http://localhost:8088/monitor/query/lidata-DL/cpu.0.percent.active/1600672572/1600672629',{ _timeout:5000, onTimeout :(request) => { this.$message.error('请求超时'); this.loading = false } }).then((response) => { var res = JSON.parse(response.bodyText); this.loading = false; this.records = res.records; var arr = res.records; for(var i = 0;i < arr.length;i++){ this.chartData.push(arr[i]); } var oSeries = { type: 'area', name: '功率', data: this.chartData }; HighCharts.chart(this.id,this.option).addSeries(oSeries); }) }, toVmDetail(url){ window.open(url) }, handleSelect(key, keyPath) { console.log(key, keyPath); }, handleOpen(key, keyPath) { console.log(key, keyPath); }, handleClose(key, keyPath) { console.log(key, keyPath); }, } } </script>
原本要求的数据格式是二维数组
series: [{ type: 'area', name: 'area', data: [ [1370131200000, 0.7695], [1370217600000, 0.7648] ] }]
然后get请求的数据返回的时候直接返回二维数组就行了
需要注意的就是二维数组的更新方式
有的时候,当我们手动对data中的数据修改时,vue却监听不到这些数据的变化,导致页面没有触发新一轮的更新。
注意:出现以上问题的原因在于,没有通过vue提供的方法对保存在data中的数据进行修改。强制性通过js对数据修改的那些方法,有一部分在vue中是不被认可的。
对于数组的更新,一种可以使用
- pop 删除末项
- push 添加一项
- shift 删除第一项
- unshift 添加第一项
- splice 截取/修改/删除数组元素
- sort 对数组排序
- reverse 取反
另一种则可以通过set方法()
this.set 这是vue实例调用 set 这是vue实例调用set这是vue实例调用set()方法,专门用来修改数组的
第一个参数,已经存在data中的数据,要被修改的数组
第二个参数,要修改的数组下标
第三个参数,要修改的数组对应下标的值
this.$set (this.selectedarr, index, option)
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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