1. 安装 svg-sprite-loader
npm i svg-sprite-loader -D
2. 封装svg组件
<template>
<svg
class="svg-icon"
:style="{ 'width' : width+'px', 'height' : height + 'px' }">
<use :xlink:href="iconName"></use>
</svg>
</template>
<script setup lang="ts">
const props = defineProps(['width','height','iconName'])
</script>
2. 创建 icons 文件夹，存在svg图片
3. 创建 svg-builder.js 文件
import { readFileSync, readdirSync } from 'fs'
let idPerfix = ''
const svgTitle = /<svg([^>+].*?)>/
const clearHeightWidth = /(width|height)="([^>+].*?)"/g
const hasViewBox = /(viewBox="[^>+].*?")/g
const clearReturn = /(\r)|(\n)/g
function findSvgFile(dir) {
const svgRes = []
const dirents = readdirSync(dir, {
withFileTypes: true
})
for (const dirent of dirents) {
if (dirent.isDirectory()) {
svgRes.push(...findSvgFile(dir + dirent.name + '/'))
} else {
const svg = readFileSync(dir + dirent.name)
.toString()
.replace(clearReturn, '')
.replace(svgTitle, ($1, $2) => {
// console.log(++i)
// console.log(dirent.name)
let width = 0
let height = 0
let content = $2.replace(
clearHeightWidth,
(s1, s2, s3) => {
if (s2 === 'width') {
width = s3
} else if (s2 === 'height') {
height = s3
}
return ''
}
)
if (!hasViewBox.test($2)) {
content += `viewBox="0 0 ${width} ${height}"`
}
return `<symbol id="${idPerfix}-${dirent.name.replace(
'.svg',
''
)}" ${content}>`
})
.replace('</svg>', '</symbol>')
svgRes.push(svg)
}
}
return svgRes
}
export const svgBuilder = (path, perfix = 'icon') => {
if (path === '') return
idPerfix = perfix
const res = findSvgFile(path)
// console.log(res.length)
// const res = []
return {
name: 'svg-transform',
transformIndexHtml(html) {
return html.replace(
'<body>',
`
<body>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="position: absolute; width: 0; height: 0">
${res.join('')}
</svg>
`
)
}
}
}
4. vite.config.js修改配置
import { svgBuilder } from './src/svg-builder';
export default defineConfig({
plugins: [svgBuilder('./src/icons/')] // 导入 icons下的svg
})
5. 引用组件并使用
<template>
<my-svg :iconName='edit'></my-svg>
</template>
