前言

在开发过程中会遇到数据的可视化展示，使用Chart.js 在Vue 搭建后台管理做视图呈现感觉是比较好用的插件，这个插件是一个基于 JavaScript 的开源可视化图表库

制作好的效果图

vue2中使用Chart.js

1、在项目中安装Chart.js 组件

npm install chart.js

2、vue文件

<template>
  <Bar
    :chart-data="chartData"
    :chart-id="chartId"
    :chart-options="chartOptions"
    :css-classes="cssClasses"
    :dataset-id-key="datasetIdKey"
    :height="height"
    :plugins="plugins"
    :styles="styles"
    :width="width"
  />
  <el-button type="primary">Ran</el-button>
</template>

<script>
  import { Bar } from 'vue-chartjs'
  import {
    Chart as ChartJS,
    Title,
    Tooltip,
    Legend,
    BarElement,
    CategoryScale,
    LinearScale,
  } from 'chart.js'

  ChartJS.register(
    Title,
    Tooltip,
    Legend,
    BarElement,
    CategoryScale,
    LinearScale
  )
  // const utils = require('@/utils/utils')
  export default {
    name: 'BarChart',
    components: { Bar },
    props: {
      chartId: {
        type: String,
        default: 'bar-chart',
      },
      datasetIdKey: {
        type: String,
        default: 'label',
      },
      width: {
        type: Number,
        default: 100,
      },
      height: {
        type: Number,
        default: 50,
      },
      cssClasses: {
        default: '',
        type: String,
      },
      styles: {
        type: Object,
        default: () => {},
      },
      plugins: {
        type: Array,
        default: () => [],
      },
    },
    data() {
      return {
        chartData: {
          labels: [
            '水星',
            '金星',
            '地球',
            '火星',
            '木星',
            '土星',
            '天王星',
            '海王星',
          ],
          datasets: [
            {
              label: '行星卫星数量',
              data: [0, 0, 1, 2, 79, 82, 27, 14],
              backgroundColor: '#ffa0b4',
              borderColor: '#ff6384',
              borderWidth: 3,
              borderRadius: 5,
              borderSkipped: false,
            },
            {
              label: '太阳系行星质量 (相对于太阳 x 10^-6)',
              data: [
                -16.6,
                -208.1,
                -300.3,
                123,
                954.792,
                685.886,
                243.662,
                201.514,
              ],
              backgroundColor: '#9ad0f5',
              borderColor: '#36a2eb',
              borderWidth: 3,
            },
          ],
        },
        chartOptions: {
          responsive: true,
          plugins: {
            legend: {
              position: 'top',
            },
            title: {
              display: true,
              text: 'Chart.js Bar Chart',
            },
          },
        },
      }
    },
  }
</script>

vue3中使用Chart.js

vue文件

<template>
  <Bar
    :chart-data="chartData"
    :chart-id="chartId"
    :chart-options="chartOptions"
    :css-classes="cssClasses"
    :dataset-id-key="datasetIdKey"
    :height="height"
    :plugins="plugins"
    :styles="styles"
    :width="width"
  />
  <el-button type="primary" @click="handledetailpeizhi">Ran</el-button>
</template>

<script>
  import { Bar } from 'vue-chartjs'
  import { reactive, toRefs } from 'vue'
  import {
    Chart as ChartJS,
    Title,
    Tooltip,
    Legend,
    BarElement,
    CategoryScale,
    LinearScale,
  } from 'chart.js'

  ChartJS.register(
    Title,
    Tooltip,
    Legend,
    BarElement,
    CategoryScale,
    LinearScale
  )
  // const utils = require('@/utils/utils')
  export default {
    name: 'BarChart',
    components: { Bar },
    props: {
      chartId: {
        type: String,
        default: 'bar-chart',
      },
      datasetIdKey: {
        type: String,
        default: 'label',
      },
      width: {
        type: Number,
        default: 100,
      },
      height: {
        type: Number,
        default: 50,
      },
      cssClasses: {
        default: '',
        type: String,
      },
      styles: {
        type: Object,
        default: () => {},
      },
      plugins: {
        type: Array,
        default: () => [],
      },
    },
    setup() {
      const data = reactive({
        chartData: {
          labels: [
            '水星',
            '金星',
            '地球',
            '火星',
            '木星',
            '土星',
            '天王星',
            '海王星',
          ],
          datasets: [
            {
              label: '行星卫星数量',
              data: [0, 0, 1, 2, 79, 82, 27, 14],
              backgroundColor: '#ffa0b4',
              borderColor: '#ff6384',
              borderWidth: 3,
              borderRadius: 5,
              borderSkipped: false,
            },
            {
              label: '太阳系行星质量 (相对于太阳 x 10^-6)',
              data: [
                -16.6,
                -208.1,
                -300.3,
                123,
                954.792,
                685.886,
                243.662,
                201.514,
              ],
              backgroundColor: '#9ad0f5',
              borderColor: '#36a2eb',
              borderWidth: 3,
            },
          ],
        },
        chartOptions: {
          responsive: true,
          plugins: {
            legend: {
              position: 'top',
            },
            title: {
              display: true,
              text: 'Chart.js Bar Chart',
            },
          },
        },
      })
      const handledetailpeizhi = () => {
        data.chartData.datasets = [
          {
            label: '行星卫星数量',
            data: [
              -16.6,
              -208.1,
              -300.3,
              123,
              954.792,
              685.886,
              243.662,
              201.514,
            ],
            backgroundColor: '#ffa0b4',
            borderColor: '#ff6384',
            borderWidth: 3,
            borderRadius: 5,
            borderSkipped: false,
          },
          {
            label: '太阳系行星质量 (相对于太阳 x 10^-6)',
            data: [0, 0, 1, 2, 79, 82, 27, 14],
            backgroundColor: '#9ad0f5',
            borderColor: '#36a2eb',
            borderWidth: 3,
          },
        ]
      }

      return {
        ...toRefs(data),
        handledetailpeizhi,
      }
    },
</script>