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我在使用webpack動態導入json時遇到問題。 （https://webpack.js.org/api/module-methods/#import-）Webpack2 + Typescript2無法動態導入json
保持它顯示了這個錯誤 - TS2307：找不到模塊
包版本..
的WebPack版本：2.7.0
打字稿版本：2.4 .2
awesome-typescript-loader：3.2.1
tsconfig.json
{
"compilerOptions": {
"outDir": "./dist/",
"sourceMap": true,
"noImplicitAny": true,
"module": "esnext",
"moduleResolution": "node",
"target": "es6",
"jsx": "react",
"allowJs": true,
"allowSyntheticDefaultImports": true
},
"awesomeTypescriptLoaderOptions": {
"useBabel": true,
"useCache": true
},
"exclude": ["node_modules"],
"include": [
"./components/**/*",
"./core/*",
"./pages/*",
"./utils/*",
"./urls/*",
"./translations/**/*",
"./main.tsx"
]
}
webpack.config.js
const path = require('path');
const webpack = require('webpack');
const AssetsPlugin = require('assets-webpack-plugin');
const pkg = require('./package.json');
const isDebug = global.DEBUG === false ? false : !process.argv.includes('--release');
const isVerbose = process.argv.includes('--verbose') || process.argv.includes('-v');
const useHMR = !!global.HMR; // Hot Module Replacement (HMR)
const babelConfig = Object.assign({}, pkg.babel, {
babelrc: false,
cacheDirectory: useHMR,
});
// Webpack configuration (main.js => public/dist/main.{hash}.js)
// http://webpack.github.io/docs/configuration.html
const config = {
// The base directory for resolving the entry option
context: __dirname,
// The entry point for the bundle
entry: [
// require('babel-polyfill'),
'./main.tsx'
],
// Options affecting the output of the compilation
output: {
path: path.resolve(__dirname, './public/dist'),
publicPath: '/dist/',
filename: isDebug ? '[name].js?[hash]' : '[name].[hash].js',
chunkFilename: isDebug ? '[id].js?[chunkhash]' : '[id].[chunkhash].js',
sourcePrefix: ' ',
},
// Developer tool to enhance debugging, source maps
// http://webpack.github.io/docs/configuration.html#devtool
devtool: isDebug ? 'inline-source-map' : false,
// What information should be printed to the console
stats: {
colors: true,
reasons: isDebug,
hash: isVerbose,
version: isVerbose,
timings: true,
chunks: isVerbose,
chunkModules: isVerbose,
cached: isVerbose,
cachedAssets: isVerbose,
},
// The list of plugins for Webpack compiler
plugins: [
new webpack.DefinePlugin({
'process.env.NODE_ENV': isDebug ? '"development"' : '"production"',
__DEV__: isDebug,
}),
// Emit a JSON file with assets paths
// https://github.com/sporto/assets-webpack-plugin#options
new AssetsPlugin({
path: path.resolve(__dirname, './public/dist'),
filename: 'assets.json',
prettyPrint: true,
}),
],
// Options affecting the normal modules
module: {
rules: [
{
test: /\.tsx?$/,
include: [
path.resolve(__dirname, './components'),
path.resolve(__dirname, './core'),
path.resolve(__dirname, './pages'),
path.resolve(__dirname, './apis'),
path.resolve(__dirname, './urls'),
path.resolve(__dirname, './translations'),
path.resolve(__dirname, './main')
],
loader: 'awesome-typescript-loader'
},
{
test: /\.css/,
use: [{loader: 'style-loader'}, {loader: 'css-loader', options:
{
sourceMap: isDebug,
// CSS Modules https://github.com/css-modules/css-modules
modules: true,
localIdentName: isDebug ? '[name]_[local]_[hash:base64:3]' : '[hash:base64:4]',
// CSS Nano http://cssnano.co/options/
minimize: !isDebug,
}},
// {loader: 'postcss-loader'}
],
},
{
test: /\.(png|jpg|jpeg|gif|svg|woff|woff2)$/,
loader: 'url-loader?limit=10000',
},
{
test: /\.(eot|ttf|wav|mp3)$/,
loader: 'file-loader',
},
],
},
externals: {
react: 'React'
},
resolve: {
extensions: ['.js', '.ts', '.tsx']
}
};
// Optimize the bundle in release (production) mode
if (!isDebug) {
config.plugins.push(new webpack.optimize.UglifyJsPlugin({ compress: { warnings: isVerbose }, sourceMap: isDebug }));
config.plugins.push(new webpack.optimize.AggressiveMergingPlugin());
}
// Hot Module Replacement (HMR) + React Hot Reload
if (isDebug && useHMR) {
babelConfig.plugins.unshift('react-hot-loader/babel');
config.entry.unshift('react-hot-loader/patch', 'webpack-hot-middleware/client');
config.plugins.push(new webpack.HotModuleReplacementPlugin());
config.plugins.push(new webpack.NoEmitOnErrorsPlugin());
}
module.exports = config;
custom.d.ts
declare module "*.json" {
const value: any;
export default value;
}
我的錯誤代碼
// TS2307: Cannot find module './test.json'.
import('./test.json').then(_ => {
console.log(_
})
// but these codes work
import './test.json'
import('./test.js').then(_ => { console.log(_)})
我儘可能地搜索了問題。但似乎沒有人遇到過這個問題。
這是我找到的相關鏈接。
- https://github.com/Microsoft/TypeScript/issues/16820
- https://blog.josequinto.com/2017/06/29/dynamic-import-expressions-and-webpack-code-splitting-integration-with-typescript-2-4/
如果有人有任何線索，請告訴我。