使用react-create-app创建项目
- 全局安装 npm install -g create-react-app
- 创建项目 create-react-app + 项目名称
引入sass处理器编写样式
安装:
"node-sass-chokidar": "^1.3.0", "npm-run-all": "^4.1.3",
package.json如下:
"scripts": {
"build-css": "node-sass-chokidar src/assets/sass -o src/assets/css", "watch-css": "npm run build-css && node-sass-chokidar src/assets/sass -o src/assets/css --watch --recursive", "start-js": "react-scripts start", "start": "npm-run-all -p watch-css start-js", "build-js": "react-scripts build", "build": "npm-run-all build-css build-js", "test": "react-scripts test --env=jsdom", "eject": "react-scripts eject" },
配置代理到node层
"proxy": {
"/api": { "target": "http://localhost:4222/" } }
使用
node层配置:
app.use('/api/productSve', productSve);
router.get('/getProducts', function (req, res) {
var results = {
id : 1,
title : '电脑',
price : 5000,
}
res.json(results);
});
react中使用:
componentDidMount() {
fetch('/api/productSve/getProducts')
.then(res => {
res.json()
})
.then(data => {
console.log(data)
})
.catch(err => {
console.log(err)
})
}
问题及方案
- 打包时报错: Import in body of module; reorder to top import/first