vue2中使用svg图标

1.安装插件

cnpm install -S svg-sprite-loader

2.封装svg组件

? ? ? ? src/SvgIcon/index.vue

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

3. 注册为全局组件及配置(js文件)

? ? ? ? src/assets/icons/index.js

import Vue from 'vue'
import SvgIcon from '@/components/SvgIcon/index.vue'// svg component

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

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

?4.在main.js引入

import '@/assets/icons/index'

5.webpack.config.js或vue.config.js中配置?

const path = require('path')

function resolve (dir) {
  return path.join(__dirname, dir)
}

module.exports = defineConfig({
  transpileDependencies: true,
  // svg
  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()
  }
})

6.使用svg

<!-- icon-class的值对应的是目录中svg的名子 --> 
<svg-icon icon-class="user"></svg-icon>

?