我们使用 Microsoft Windows 进行开发和托管。
npm 版本 - 6.8.0
Node 版本 - 10.15.3
我想知道如何在我的开发机器上本地启动我的 ReactApp，就像在生产环境中一样。
我们有多个工作环境，例如测试、暂存、预生产、生产......等，我们希望在不实际部署到目标环境的情况下测试应用程序的行为。
通过使用process.env.NODE_ENV来检查不同的环境，我们在源代码中得到了一些逻辑语句。
我尝试更新 package.json scripts 部分，如下所示。但是，这不起作用。
"scripts": {
"start": "react-scripts start",
"start-prod": "cross-env NODE_ENV=production react-scripts start",
"start-prod2": "set NODE_ENV=production&&react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
我尝试了 start-prod 和 start-prod2 。尽管它成功托管了应用程序，但它始终处于开发模式。请参阅以下屏幕截图:
npm run start-prod
npm run start-prod2
如果我使用npm run build，它会使用生产环境生成构建。但测试需要太多时间。
您能否指导我如何在我的开发机器中模拟各种环境？
附注我只是使用默认的 create-react-app 脚本设置，并且没有任何自定义 webpack 配置文件。
完整的package.json文件
{
"name": "react-workout-diary",
"version": "0.10.0",
"private": true,
"dependencies": {
"@fortawesome/fontawesome-svg-core": "^1.2.18",
"@fortawesome/free-brands-svg-icons": "^5.8.2",
"@fortawesome/free-regular-svg-icons": "^5.8.2",
"@fortawesome/free-solid-svg-icons": "^5.8.2",
"@fortawesome/react-fontawesome": "^0.1.4",
"axios": "^0.19.0",
"bootstrap": "^4.3.1",
"es6-object-assign": "^1.1.0",
"es6-promise": "^4.2.6",
"formik": "^1.5.7",
"has-value": "^2.0.2",
"is-empty": "^1.2.0",
"moment": "^2.24.0",
"prop-types": "^15.7.2",
"react": "^16.8.6",
"react-datepicker": "^2.6.0",
"react-delay": "^0.1.0",
"react-dom": "^16.8.6",
"react-moment": "^0.9.2",
"react-redux": "^7.0.3",
"react-router-dom": "^5.0.0",
"react-scripts": "^3.0.1",
"react-toastify": "^5.2.1",
"reactstrap": "^8.0.0",
"redux": "^4.0.1",
"redux-devtools-extension": "^2.13.8",
"redux-logger": "^3.0.6",
"redux-saga": "^1.0.2",
"redux-saga-routines": "^3.1.3",
"redux-thunk": "^2.3.0",
"reselect": "^4.0.0",
"uuid": "^3.3.2",
"yup": "^0.27.0"
},
"scripts": {
"start": "react-scripts start",
"start-prod": "cross-env NODE_ENV=production react-scripts start",
"start-prod2": "set NODE_ENV=production&&react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"devDependencies": {
"cross-env": "^5.2.0",
"enzyme": "^3.9.0",
"enzyme-adapter-react-16": "^1.13.2",
"enzyme-to-json": "^3.3.5",
"react-test-renderer": "^16.8.6",
"redux-saga-test-plan": "^4.0.0-beta.3"
}
}
最佳答案
您无法更改 NODE_ENV 变量:
You cannot override NODE_ENV manually. This prevents developers from accidentally deploying a slow development build to production.
您可以做的是使用不同的 .env 文件:
来自:React documentation
Files on the left have more priority than files on the right:
npm start: .env.development.local, .env.development, .env.local, .env npm run build: .env.production.local, .env.production, .env.local, .env npm test: .env.test.local, .env.test, .env (note .env.local is missing)
关于node.js - 如何在特定环境中的开发机器上启动React App？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56533888/