React 配置 @ 路径别名

第一步安装依赖

yarn add react-app-rewired customize-cra

第二步修改 package.json 配置，将 react-scripts 修改成 react-app-rewired

"scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test",
    "eject": "react-scripts eject"
  },

第三步在根目录下创建 config-overrides.js 文件

const { override, addWebpackAlias } = require("customize-cra");
const path = require("path");

module.exports = override(
  //增加路径别名的处理 
  addWebpackAlias({  
    '@': path.resolve('./src')  
  })
);

第四步在 tsconfig.json 文件中加入 baseUrl 和 paths 

{
  "compilerOptions": {
    "baseUrl": "src",
    "paths": {
      "@/*": [
        "*"
      ]
    }
}

最后重新启动就能通过 @ 引入文件里

import { login } from '@/api/login'