1、安装dotenv-cli工具
yarn global add dotenv-cli
2、修改package.json文件配置
"scripts": {
"start": "react-app-rewired start",
"build:dev": "dotenv -e .env.development react-app-rewired build",
"build:pro": "dotenv -e .env.production react-app-rewired build",
"test": "react-app-rewired test",
"eject": "react-scripts eject"
},
3、添加全局变量
.env.development
REACT_APP_ROOT='//******.*****.com'
.env.production
REACT_APP_ROOT='//******.*****.com'
4、运行
<!--测试-->
yarn build:dev
<!--生产-->
yarn build:pro