封装echarts组件

1. 基本组件common\echart\index.vue

<template>
  <div :id="id" :class="className" :style="{ height: height, width: width }" />
</template>

<script>
var echarts = require('echarts')
export default {
  name: 'Echart',
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    id: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '100%'
    },
    options: {
      type: Object,
      default: () => ({})
    }
  },
  data () {
    return {
      chart: null
    }
  },
  watch: {
    options: {
      handler (options) {
        // 设置true清空echart缓存
        this.chart.setOption(options, true)
      },
      deep: true
    }
  },
  created () {
  },
  activated () {
    // 防止 keep-alive 之后图表变形
    if (this.chart) {
      this.chart.resize()
    }
  },

  mounted () {
    this.initChart()
    window.addEventListener('resize', () => {
      this.chart.resize()
    })
  },
  methods: {
    initChart () {
      // 初始化echart
      this.chart = echarts.init(this.$el) // 'tdTheme'
      this.chart.setOption(this.options, true)
    }
  }
}
</script>

<style></style>

2. 封装单个图标使用 components/Echarts/histogram

2.1数据 components/Echarts/histogram/index.vue

<template>
  <!-- 数据层 -->
  <Chart :cdata="cdata" />
</template>

<script>
import Chart from '../histogram/charts.vue'
export default {
  components: {
    Chart
  },
  data () {
    return {
      cdata: {
        xAsisData: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子'],
        data: [5, 20, 36, 10, 10, 20]
      }
    }
  },
  computed: {},
  watch: {},
  created () { },
  mounted () { },
  methods: {}
}
</script>
<style lang="less" scoped>
</style>

2.1业务 components/Echarts/histogram/charts.vue

<template>
  <!-- 业务层 -->
  <Echart id="Chart"
          :options="options"
          height="100%"
          width="100%" />
</template>

<script>
import Echart from '@/common/basicEcharts'
export default {
  components: {
    Echart
  },
  props: {
    cdata: {
      type: Object,
      default: () => ({})
    }
  },
  data () {
    return {
      options: {}
    }
  },
  watch: {
    cdata: {
      handler (newData) {
        this.echartsChange()
      },
      immediate: true,
      deep: true
    }
  },
  methods: {
    echartsChange () {
      this.options = {
        title: {
          text: 'ECharts 入门示例'
        },
        tooltip: {},
        legend: {
          data: ['销量']
        },
        xAxis: {
          data: this.cdata.xAsisData
        },
        yAxis: {},
        series: [
          {
            name: '销量',
            type: 'bar',
            data: this.cdata.data
          }
        ]
      }
    }
  }
}
</script>

<style lang="less" scoped>
</style>

3.主页面调用

<template>
  <div>
    <Histogram style="height:40vh;width:30vw;" />
  </div>
</template>
<script>
import Histogram from '@/components/Echarts/histogram'
export default {
  data () {
    return {

    }
  },
  components: {
    Histogram
  },
  mounted () {
  },
  methods: {
  }
}
</script>
<style scoped>

</style>