这是一个在 vite.js 中使用公共 cdn 的库,包括了 unpkg, jsdelivr 等多个 cdn 资源,如加载失败会自动切换下一个 cdn 进行加载。
pnpm install vite-add-cdn-script rollup-plugin-external-globals -D
vite.config.ts
import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";
import viteAddCdnScript from "vite-add-cdn-script";
import externalGlobals from "rollup-plugin-external-globals";
// 需要使用cdn库,按顺序添加,如react-router-dom需要依赖react、@remix-run/router、react-router,因此需要放在最后
const externals = {
react: "React",
"react-dom": "ReactDOM",
"@remix-run/router": "@remix-run/router",
"react-router": "react-router",
"react-router-dom": "ReactRouterDOM",
};
export default defineConfig({
plugins: [react(), viteAddCdnScript({})],
build: {
rollupOptions: {
external: [...Object.keys(externals)],
plugins: [externalGlobals(externals)],
},
},
});
使用自定义的 cdn
import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";
import viteAddCdnScript from "../vite-add-cdn-script/lib/main";
import externalGlobals from "rollup-plugin-external-globals";
// 需要使用cdn的模块,会按顺序插入脚本,如
const externals = {
react: "React",
"react-dom": "ReactDOM",
};
export default defineConfig({
plugins: [
react(),
viteAddCdnScript({
customScript: {
react: "<script src='https://cdn.jsdelivr.net/npm/react@17.0.2/umd/react.production.min.js'></script>",
"react-dom":
"<script src='https://cdn.jsdelivr.net/npm/react-dom@17.0.2/umd/react-dom.production.min.js'></script>",
},
}),
],
base: "./",
build: {
rollupOptions: {
external: [...Object.keys(externals)],
plugins: [externalGlobals(externals)],
},
},
});
options
参数 | 解析 | 类型 | 默认值 |
---|---|---|---|
customScript | 自定义 cdn 脚本 | { [key: string]: string } | 无 |
defaultCdns | 默认使用 cdn 的顺序 | string[] | ["jsdelivr", "unpkg"] |
- 接入了各大 cdn 的 api 接口进行请求,默认会保存一份 cdn 的缓存在你的根目录中
.cdn-cache.json
。如果发现缓存的资源有问题可以删除该文件,然后重新执行打包流程。 - 按顺序添加 cdn,如 react-router-dom 需要依赖 react、@remix-run/router、react-router,因此需要放在最后。