vue中写svg组件svg图片加载不出来

结构

首先要安装3个插件：svg-sprite-loader，svgo，svgo-loader

npm install svg-sprite-loader -S
npm install svgo -S
npm install svgo-loader -S

package.json

src/icons/index.js

import Vue from 'vue'
import SvgIcon from '@/components/SvgIcon'// svg组件

// register globally
Vue.component('svg-icon', SvgIcon)

const requireAll = requireContext => requireContext.keys().map(requireContext)
const req = require.context('./svg', false, /\.svg$/)
requireAll(req)

src/components/SvgIcon/index.vue

<template>
  <svg :class="svgClass" aria-hidden="true">
    <use :xlink:href="iconName"></use>
  </svg>
</template>

<script>
export default {
  name: 'svg-icon',
  props: {
    iconClass: {
      type: String,
      required: true
    },
    className: {
      type: String
    }
  },
  computed: {
    iconName() {
      return `#icon-${this.iconClass}`
    },
    svgClass() {
      if (this.className) {
        return 'svg-icon ' + this.className
      } else {
        return 'svg-icon'
      }
    }
  }
}
</script>

<style scoped>
.svg-icon {
  width: 1.2em;
  height: 1.2em;
  vertical-align: -0.18em;
  fill: currentColor;
  overflow: hidden;
}
</style>

main.js

import '@/icons' // icon

vue.config.js

const path = require('path')
module.exports = {
  chainWebpack: config => {
    // 给svg规则增加⼀个排除选项
    config.module
      .rule('svg')
      .exclude.add(path.resolve(__dirname, './src/icons'))

    // 新增icons规则，设置svg-sprite-loader处理icons⽬录中的svg
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(path.resolve(__dirname, './src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({ symbolId: 'icon-[name]' })
      .end()
      .use('svgo-loader')
      .loader('svgo-loader')

    // config.resolve.alias.set('@img', path.resolve(__dirname, 'src/assets/img/'))
  },
}