Vue中引入svg图标的两种方式

yarn add svg-sprite-loader --dev

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

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

<style lang="less" scoped>
.svg-icon {
 width: 100px;
 height: 100px;
 vertical-align: -0.15em;
 fill: currentColor;
 overflow: hidden;
}
</style>

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

// 注册到全局
Vue.component('svg-icon', SvgIcon)

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

module.exports = {
	chainWebpack: config => {
	 	config.module
   .rule('svg')
   .exclude.add(resolve('src/assets/icons'))
   .end()
  config.module
   .rule('icons')
   .test(/\.svg$/)
   .include.add(resolve('src/assets/icons'))
   .end()
   .use('svg-sprite-loader')
   .loader('svg-sprite-loader')
   .options({
    symbolId: 'icon-[name]'
   })
   .end()
	}  
}

<!-- svg-name为svg名 -->
<svg-icon svg-name="ic_home_news" />

const path = require('path');
function resolve(dir) {
 // __dirname项目根目录的绝对路径
 return path.join(__dirname, dir);
}
module.exports = {
 chainWebpack: config => {
 const svgRule = config.module.rule('svg');
 // 清除已有的所有loader
 // 如果你不这样做，接下来的loader会附加在该规则现有的loader之后
 svgRule.uses.clear();
 svgRule
  .test(/\.svg$/)
  .include.add(path.resolve(__dirname, './src/icons/svg'))
  .end()
  .use('svg-sprite-loader')
  .loader('svg-sprite-loader')
  .options({
  symbolId: 'icon-[name]'
  });
 const fileRule = config.module.rule('file');
 fileRule.uses.clear();
 fileRule
  .test(/\.svg$/)
  .exclude.add(path.resolve(__dirname, './src/icons/svg'))
  .end()
  .use('file-loader')
  .loader('file-loader');
 },
}

<template>
 <svg :class="svgClass" xmlns="http://www.w3.org/2000/svg">
 <use :xlink:href="iconName" xmlns:xlink="http://www.w3.org/1999/xlink" />
 </svg>
</template>
<script>
export default {
 name: 'SvgIcon',
 props: {
 iconClass: {
  type: String,
  required: true
 },
 className: {
  type: String,
  default: ''
 }
 },
 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: 1em;
 height: 1em;
 vertical-align: -0.15em;
 fill: currentColor;
 overflow: hidden;
}
</style>

import Vue from 'vue';
import SvgIcon from '@/components/SvgIcon'; // svg组件
// register globally
Vue.component('svg-icon', SvgIcon);
const req = require.context('./svg', false, /\.svg$/);
const requireAll = requireContext => requireContext.keys().map(requireContext);
requireAll(req);

import './icons'; 

<svg-icon icon-class="features_ic_risk@1x" class-name="icon"></svg-icon>