admin_home/src/views/dashboard/admin/components/RingChart.vue

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

<script>
import echarts from 'echarts';
require('echarts/theme/macarons'); // echarts 主题
import resize from './mixins/resize';

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart',
    },
    width: {
      type: String,
      default: '100%',
    },
    height: {
      type: String,
      default: '350px',
    },
    chartData: {
      type: Array,
      required: true
    }
  },
  data() {
    return {
      chart: null,
    };
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val);
      }
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart();
    });
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    this.chart.dispose();
    this.chart = null;
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons');
      this.setOptions(this.chartData);
    },
    setOptions(chartData) {
      // 格式化数据
      const data = chartData.map(item => ({
        value: item.counts, // 将 counts 作为 value
        name: item.typeName  // 将 typeName 作为 name
      }));

      this.chart.setOption({
        tooltip: {
          trigger: 'item',
          formatter: '{a} <br/>{b} : {c} ({d}%)',
        },
        legend: {
          left: 'center',
          bottom: '10',
          data: data.map(item => item.name) // 使用提取的 typeName 作为图例
        },
        series: [
          {
            name: '会员类型', // 可以根据需要修改名称
            type: 'pie',
            radius: ['45%', '60%'], // 环形图，使用内外径
            center: ['50%', '42%'],
            data: data, // 使用提取的数据
            label: {
              show: true,
              //formatter: '{b}: {c} ({d}%)',
              formatter: '{b}: {c} 人',
            },
            labelLine: {
              show: true,
            },
            animationEasing: 'cubicInOut',
            animationDuration: 2600,
          },
        ],
      });
    },
  },
};
</script>

<style scoped>
.chart {
  width: 100%; /* 或者设置为具体的像素值 */
  height: 300px; /* 确保有高度 */
}
</style>