如何将CSS文件导入到Component .jsx文件中

本文介绍了如何将CSS文件导入到Component .jsx文件中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试像这样使用react-day-pickers组件，但是我不知道如何导入.css文件，并且不断收到错误消息:

I am trying to use the react-day-pickers component like so but I can't figure out how to import the .css file and I keep getting the error:

Module parse failed: /Users/qliu/Documents/workspace/AppNexus/pricing_ui/contract-ui/app_contract-ui/node_modules/react-day-picker/lib/style.css Unexpected token (3:0) You may need an appropriate loader to handle this file type. SyntaxError: Unexpected token (3:0)

我的package.json中安装了"css-loader": "^0.19.0",， 这是我的Calender.jsx文件:

I have "css-loader": "^0.19.0", in my package.json installed and here is my Calender.jsx file:

import React from "react"; import DayPicker, { DateUtils } from "react-day-picker"; import "../../../node_modules/react-day-picker/lib/style.css"; // <==== ERROR ON THIS LINE export default class Calender extends React.Component { state = { selectedDay: null }; handleDayClick(e, day, modifiers) { if (modifiers.indexOf("disabled") > -1) { console.log("User clicked a disabled day."); return; } this.setState({ selectedDay: day }); } render() { // Add the `selected` modifier to the cell of the clicked day const modifiers = { disabled: DateUtils.isPastDay, selected: day => DateUtils.isSameDay(this.state.selectedDay, day) }; return <DayPicker enableOutsideDays modifiers={ modifiers } onDayClick={ this.handleDayClick.bind(this) } />; } }

这是我的webpack.config.js:

and this is my webpack.config.js:

var path = require('path'); var webpack = require('webpack'); var settings = require('./src/server/config/settings'); var LessPluginAutoPrefix = require('less-plugin-autoprefix'); module.exports = { devtool: '#source-map', resolve: { extensions: ['', '.jsx', '.js'] }, entry: [ 'webpack-hot-middleware/client', './src/client/index.jsx' ], externals: { 'react': 'React', 'react-dom': 'ReactDOM', // to avoid duplicate import of React with react-addons-css-transition-group './React': 'React', './ReactDOM': 'ReactDOM', config: 'config' }, output: { path: path.join(__dirname, 'public'), filename: 'bundle.js', publicPath: '/' }, plugins: [ new webpack.HotModuleReplacementPlugin(), new webpack.NoErrorsPlugin() ], lessLoader: { lessPlugins: [ new LessPluginAutoPrefix({ browsers: ['last 2 versions'] }) ] }, module: { loaders: [{ test: /\.(js|jsx)$/, loaders: ['babel'], exclude: /node_modules/ }, { test: /\.less$/, loader: 'style!css!less' }, { test: /\.json$/, loader: 'json-loader' }] } };

推荐答案

您如何编译它?如果是webpack，则可能需要引入样式加载器，并在webpack配置的module.loaders数组中包含以下内容:

How are you compiling this? If it's webpack, you'd probably need to bring in the style-loader and include something like this in the module.loaders array in your webpack config:

{ test: /\.css$/, loader: "style!css" }

更新:使用现在提供的webpack.config.js，我们可以确认需要在module.loaders数组中进行更改. OP使用较少的加载程序，仅检查.less文件，因此确切的加载程序对象应为:

Update: With the webpack.config.js now provided, we can confirm it needed a change in the module.loaders array. OP was using a less loader and only checking for .less files, so the exact loader object should read:

{ test: /\.(less|css)$/, loader: 'style!css!less' }

根据 @Q Liu 的建议.好像有人来​​导入.css文件时出错一样，这很可能就是他们所需要的.

As suggested by @Q Liu. Leaving the original bit as if someone comes here with an error importing a .css file, it's likely what they need.