我正在使用 Express 构建一个 React 应用程序， 我尝试添加样式加载器/css 加载器以启用导入 css， 但是当我启动服务器时出现以下错误:
M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox>npm run start:dev
> flex_board@1.0.0 start:dev M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox
> cross-env NODE_ENV=development && npm run build:dev && nodemon --exec babel-node -- src/server/server.js
> flex_board@1.0.0 build:dev M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox
> webpack -d
Hash: 1b4953ee761d210e2488
Version: webpack 2.2.1
Time: 2567ms
Asset Size Chunks Chunk Names
bundle.js 2.54 MB 0 [emitted] [big] js
[6] ./~/react/react.js 55 bytes {0} [built]
[23] ./~/react/lib/React.js 2.71 kB {0} [built]
[24] ./~/react-router-dom/es/index.js 2.21 kB {0} [built]
[89] ./~/react-router-dom/es/Link.js 4.67 kB {0} [built]
[94] ./~/react-dom/index.js 58 bytes {0} [built]
[195] ./~/react-router-dom/es/MemoryRouter.js 259 bytes {0} [built]
[196] ./~/react-router-dom/es/NavLink.js 3.36 kB {0} [built]
[197] ./~/react-router-dom/es/Prompt.js 253 bytes {0} [built]
[198] ./~/react-router-dom/es/Redirect.js 255 bytes {0} [built]
[199] ./~/react-router-dom/es/Route.js 252 bytes {0} [built]
[201] ./~/react-router-dom/es/StaticRouter.js 259 bytes {0} [built]
[202] ./~/react-router-dom/es/Switch.js 253 bytes {0} [built]
[203] ./~/react-router-dom/es/matchPath.js 256 bytes {0} [built]
[204] ./~/react-router-dom/es/withRouter.js 257 bytes {0} [built]
[236] ./src/client/app-client.js 706 bytes {0} [built]
+ 222 hidden modules
[nodemon] 1.11.0
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `babel-node src/server/server.js`
M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babel-core\lib\transformation\file\index.js:590
throw err;
^
SyntaxError: M:/MainFiles/MyStuff/Code/react/FlexBoardToolBox/src/client/components/Test/text.css: Unexpected token (1:0)
←[0m←[31m←[1m>←[22m←[39m←[90m 1 | ←[39m←[33m.←[39mtest{
←[90m | ←[39m←[31m←[1m^←[22m←[39m
←[90m 2 | ←[39m background←[33m:←[39m blue←[33m;←[39m
←[90m 3 | ←[39m font←[33m-←[39msize←[33m:←[39m ←[35m1.234←[39mpx←[33m;←[39m
←[90m 4 | ←[39m} ←[0m
at Parser.pp$5.raise (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:4373:13)
at Parser.pp.unexpected (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:1716:8)
at Parser.pp$3.parseExprAtom (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:3683:12)
at Parser.parseExprAtom (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:7016:22)
at Parser.pp$3.parseExprSubscripts (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:3427:19)
at Parser.pp$3.parseMaybeUnary (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:3407:19)
at Parser.pp$3.parseExprOps (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:3337:19)
at Parser.pp$3.parseMaybeConditional (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:3314:19)
at Parser.pp$3.parseMaybeAssign (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:3277:19)
at Parser.parseMaybeAssign (M:\MainFiles\MyStuff\Code\react\FlexBoardToolBox\node_modules\babylon\lib\index.js:6242:20)
[nodemon] app crashed - waiting for file changes before starting...
我的package.json 文件:
{
"name": "flex_board_tools",
"version": "1.0.0",
"description": "tool box",
"main": "server.js",
"scripts": {
"start": "npm run build && babel-node src/server/server.js",
"start:dev": "cross-env NODE_ENV=development && npm run build:dev && nodemon --exec babel-node -- src/server/server.js",
"start:universal": "cross-env UNIVERSAL=true && npm run start",
"start:dev:universal": "cross-env NODE_ENV=development && cross-env UNIVERSAL=true && npm run start:dev",
"build": "cross-env NODE_ENV=production webpack -p",
"build:dev": "webpack -d",
"build:dev:watch": "webpack -d --watch"
},
"author": "Bender",
"license": "MIT",
"dependencies": {
"babel-cli": "^6.18.0",
"babel-core": "^6.18.2",
"babel-preset-es2015": "^6.18.0",
"babel-preset-react": "^6.16.0",
"babel-preset-stage-2": "^6.24.1",
"ejs": "^2.5.2",
"express": "5.0.0-alpha.5",
"react": "15.4.2",
"react-addons-css-transition-group": "^15.4.0",
"react-dom": "15.4.2",
"react-router-dom": "^4.0.0",
"react-toolbox": "^2.0.0-beta.8"
},
"devDependencies": {
"babel-loader": "^6.4.1",
"babel-register": "^6.18.0",
"cross-env": "^4.0.0",
"css-loader": "^0.28.0",
"eslint": "^3.18.0",
"eslint-config-airbnb": "^14.1.0",
"eslint-plugin-import": "^2.2.0",
"eslint-plugin-jsx-a11y": "^4.0.0",
"eslint-plugin-react": "^6.10.3",
"extract-text-webpack-plugin": "^2.1.0",
"isomorphic-style-loader": "^2.0.0",
"nodemon": "^1.11.0",
"style-loader": "^0.16.1",
"webpack": "2.2.1"
}
}
我的webpack.config.babel.js
import path from 'path';
const ExtractTextPlugin = require("extract-text-webpack-plugin");
console.log("DIR: " + __dirname);
const config = {
entry: {
js: './src/client/app-client.js',
},
output: {
path: path.join(__dirname, 'src', 'client', 'static', 'js'),
filename: 'bundle.js',
},
module: {
rules: [
{
test: [/\.jsx$/, /\.js$/], //path.join(__dirname, 'src'),
exclude: ["bower_components", "node_modules"],
use: {
loader: 'babel-loader',
options: 'cacheDirectory=.babel_cache',
},
},
{
test: /\.css$/,
use: [
{ loader: 'style-loader' },
{ loader: 'css-loader' }
],
include: [
path.resolve(__dirname, "src","client")
],
}
]
},
plugins: [
]
,
};
export default config;
示例用法(也尝试导入“./text.css”):
import React from 'react';
import css from './text.css';
export class Test1 extends React.Component {
render() {
return (<div className="test">
Test1 File
</div>
);
}
}
export default Test1;
文本.css
.test{
background: blue;
font-size: 1.234px;
}
我已经研究了几个小时，似乎找不到问题所在。
最佳答案
我必须从以下位置删除:
{
test: /\.css$/,
use: [
{ loader: 'style-loader' },
{ loader: 'css-loader' }
],
include: [
path.resolve(__dirname, "src","client")
],
}
至:
{
test: /\.css$/,
use: [
{ loader: 'style-loader' },
{ loader: 'css-loader' }
],
}
这个适用于我的情况。我不知道为什么。
关于reactjs - 尝试使用 webpack 和 babel 加载 css 时出现意外标记，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43559534/