<template>
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<div style="padding: 10px" ref="pageContent">
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<el-form :model="queryParam" ref="queryForm" :inline="true" style="display: flex">
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<el-form-item label="试卷：">
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<el-select v-model="queryParam.examPaperId" filterable placeholder="试卷">
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<el-option v-for="item in examPaperList" :key="item.id" :value="item.id" :label="item.name" />
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</el-select>
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</el-form-item>
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<el-form-item label="部门：" v-if="true">
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<el-select v-model="queryParam.departmentId" filterable placeholder="部门" clearable>
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<el-option v-for="item in levelEnum" :key="item.key" :value="item.key" :label="item.value" />
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</el-select>
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</el-form-item>
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<el-form-item>
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<el-button type="primary" @click="submitForm">查询</el-button>
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</el-form-item>
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</el-form>
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<el-row :gutter="20">
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<el-col :xl="12" class="echarts-row">
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<el-card>
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<div class="card-chart-container">
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<div id="ageChart" ref="ageChart" class="chart-style" v-loading="chartLoading1" />
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</div>
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</el-card>
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</el-col>
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<el-col :xl="12" class="echarts-row">
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<el-card>
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<div class="card-chart-container">
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<div id="scoreChart" ref="scoreChart" class="chart-style" v-loading="chartLoading2" />
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</div>
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</el-card>
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</el-col>
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</el-row>
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<el-row :gutter="20">
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<el-col :xl="24">
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<el-card>
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<div class="card-chart-container">
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<div id="peopleChart" ref="peopleChart" class="chart-style" v-loading="chartLoading3" />
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</div>
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</el-card>
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</el-col>
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</el-row>
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</div>
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</template>
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<script>
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import { mapGetters, mapState } from 'vuex';
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import dashboardApi from '@/api/dashboard';
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const colorList = ['#3498DB', '#E74C3C', '#F1C40F', '#95A5A6', '#8E44AD', '#F39C12', '#D35400'];
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const ageLabel = {
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'age0To19': '0-19岁',
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'age20To29': '20-29岁',
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'age30To39': '30-39岁',
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'age40To49': '40-49岁',
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'ageOver50': '大于50岁',
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};
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const scoreLabel = {
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'score0To59': '小于60分',
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'score60To69': '60-69分',
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'score70To79': '70-79分',
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'score80To89': '80-89分',
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'score90To100': '90-100分'
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};
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const pieLabel = {
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'totalAttended': '参与考试',
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'totalAbsent': '未参与考试'
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};
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let ageChart = null;
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let scroeChart = null;
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let peopleChart = null;
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let observer = null;
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export default {
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data() {
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return {
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examPaperList: [],
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chartLoading1: false,
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chartLoading2: false,
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chartLoading3: false,
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queryParam: {
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examPaperId: '',
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departmentId: ''
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}
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};
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},
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mounted() {
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ageChart = echarts.init(this.$refs.ageChart);
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scroeChart = echarts.init(this.$refs.scoreChart);
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peopleChart = echarts.init(this.$refs.peopleChart);
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dashboardApi.examPaperList().then(res => {
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this.examPaperList = res.response;
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this.queryParam.examPaperId = this.examPaperList[0].id
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this.getChartData();
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this.observe();
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});
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},
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methods: {
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getChartData() {
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this.chartLoading1 = true;
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this.chartLoading2 = true;
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this.chartLoading3 = true;
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dashboardApi.getData(this.queryParam).then(re => {
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const { age, score, examPeopleNum } = re.response;
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const ageOption = this.barOption('年龄段统计', age, ageLabel);
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const scoreOption = this.barOption('分数段统计', score, scoreLabel);
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const peopleOption = this.pieOption('考试人数', examPeopleNum, pieLabel);
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ageChart.setOption(ageOption, true);
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scroeChart.setOption(scoreOption, true);
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peopleChart.setOption(peopleOption, true);
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this.chartLoading1 = false;
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this.chartLoading2 = false;
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this.chartLoading3 = false;
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});
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},
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barOption(title, data, labelList) {
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const dataKeys = data.map(item => labelList[Object.keys(item)[0]]);
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const dataValues = data.map(item => Object.values(item)[0]);
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return {
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title: {
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text: title,
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x: 'left'
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},
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color: colorList,
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tooltip: {
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trigger: 'item'
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},
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grid: {
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left: 10,
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right: 10,
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bottom: 20,
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top: 40,
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containLabel: true
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},
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xAxis: {
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type: 'category',
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data: dataKeys
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},
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yAxis: {
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type: 'value'
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},
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series: [
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{
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type: 'bar',
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label: {
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show: true,
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fontSize: 16
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},
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barMaxWidth: '40%',
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data: dataValues,
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}
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]
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};
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},
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pieOption(title, data, labelList) {
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const pieData = data.map(item => {
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return {
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name: labelList[Object.keys(item)[0]],
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value: Object.values(item)[0]
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};
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});
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return {
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title: {
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text: title,
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x: 'left'
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},
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color: ['#E74C3C', '#3498DB', '#F1C40F', '#95A5A6', '#8E44AD', '#F39C12', '#D35400'],
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tooltip: {
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trigger: 'item'
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},
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legend: {
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orient: 'horizontal',
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},
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series: [
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{
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type: 'pie',
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radius: '50%',
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data: pieData,
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emphasis: {
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itemStyle: {
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shadowBlur: 10,
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shadowOffsetX: 0,
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shadowColor: 'rgba(0, 0, 0, 0.5)'
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}
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}
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}
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]
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};
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},
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submitForm() {
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this.getChartData();
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},
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// 监听变化
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observe() {
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if (!observer) {
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observer = new ResizeObserver(entries => {
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this.handleResize();
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});
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}
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observer.observe(this.$refs.pageContent);
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},
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// 窗口变换
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handleResize() {
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if (ageChart) {
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ageChart.resize();
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}
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if (scroeChart) {
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scroeChart.resize();
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}
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if (peopleChart) {
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peopleChart.resize();
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}
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}
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},
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beforeDestroy() {
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observer.unobserve(this.$refs.pageContent);
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},
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computed: {
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...mapGetters('enumItem', ['enumFormat']),
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...mapState('enumItem', {
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levelEnum: state => state.user.levelEnum
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})
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}
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};
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</script>
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<style scoped lang="scss">
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.echarts-row {
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margin-bottom: 20px;
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}
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.card-chart-container {
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width: 100%;
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height: 400px;
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}
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.chart-style {
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width: 100%;
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height: 100%;
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}
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</style>
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