<template> <div class="carbon-quota-page"> <!-- 页面标题 --> <h1>碳额度查询</h1> <!-- 查询表单区域 --> <el-form v-if="!loading" :model="form" ref="queryForm" label-width="80px" @submit.prevent="fetchQuota"> <el-form-item label="企业ID:" prop="enterpriseId" required> <el-input id="enterprise-id" v-model.trim="form.enterpriseId" placeholder="样例:1或者2"></el-input> </el-form-item> <el-form-item> <el-button type="primary" @click="fetchQuota">查询碳排放配额</el-button> </el-form-item> </el-form> <!-- 加载提示 --> <p v-if="loading">正在加载数据...</p> <div class="carbon-quota-container" > <div class="carbon-quota-chart"> <div ref="chart" style="width: 600px; height: 400px;"></div> <!-- 创建一个用于放置图表的div --> </div> <!-- 结果展示区域 --> <div v-if="quota && !loading"> <el-card class="carbon-quota-card"> <h2 slot="header">企业碳排放配额余额</h2> <el-table :data="[quota]" style="width: 100%"> <el-table-column prop="enterpriseName" label="当前企业" width="180"></el-table-column> <el-table-column prop="balance" label="剩余碳排放配额(吨)" align="center" width="180"> <template slot-scope="scope">{{ scope.row.balance.toFixed(2) }}</template> </el-table-column> </el-table> </el-card> </div> </div> <!-- 错误信息提示 --> <p v-if="error" class="error">{{ error }}</p> </div> </template> <script> import * as echarts from 'echarts'; import { Form, FormItem, Input, Button } from 'element-ui'; export default { components: { ElForm: Form, ElFormItem: FormItem, ElInput: Input, ElButton: Button, }, mounted() { this.$nextTick(() => { this.initChart(); }); }, data() { return { loading: false, form: { enterpriseId: '', }, quota: null, error: '', data:[0,0,0,0,0] }; }, methods: { async fetchQuota() { this.loading = true; try { if(this.form.enterpriseId == '1'){ this.quota = { "enterpriseName": "企业1", "balance": 12345.67, // 假设单位为吨 }; this.data=[1500,1200,1600,1100,1800], this.error = ''; }else if(this.form.enterpriseId == '2'){ this.quota = { "enterpriseName": "企业2", "balance": 5162.67, // 假设单位为吨 }; this.data=[900,1200,1100,1500,1300], this.error = ''; }else{ this.quota = { "enterpriseName": "", "balance": 0, // 假设单位为吨 }; this.error = '查询失败,未找到该公司。'; this.data=[0,0,0,0,0] } this.initChart(); } catch (error) { this.error = '查询失败,请检查企业ID是否正确或稍后再试。'; } finally { this.loading = false; } }, initChart() { const chartDom = this.$refs.chart; const chartInstance = echarts.init(chartDom); // 设置图表配置项 chartInstance.setOption({ title: { text: '企业碳排放趋势', }, tooltip: {}, xAxis: { data: ['1月', '2月', '3月', '4月', '5月'], }, yAxis: {}, series: [ { name: '剩余碳排放量', type: 'line', // 将此处的 'bar' 改为 'line' 类型以显示折线图 data: this.data, }, ], // 添加工具箱 toolbox: { show: true, feature: { saveAsImage: {}, // 保存图片功能 dataView: {}, // 数据视图 magicType: { // 图表切换(包括折线图、柱状图等) type: ['line', 'bar'] }, restore: {}, // 恢复默认设置 dataZoom: {}, // 数据区域缩放 brush: {} // 区域选择 } }, }); }, }, }; </script> <style scoped> /* 添加相应的样式 */ .error { color: red; } .carbon-quota-page {} .carbon-quota-container { display: flex; } .carbon-quota-chart { width: 50%; margin-right: 20px; } </style>
碳额度的发放页面。
标签:loading,17,指导,quota,enterpriseName,寒假,error,balance,data From: https://www.cnblogs.com/syhxx/p/17986905