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Question

我在我的React应用程序中集成了打字稿，其中包含大量代码。我有一些应用程序级别的HOC，我将它们应用到React Components上：

import React from 'react';
import HOC1 from 'app/hocs/hoc1';
import compose from 'recompose/compose;

class MyComponent from React.Component {
     ...component stuff...
}

export default compose(HOC1())(MyComponent);

但是现在，无论何时导入，我都在应用程序中添加了打字稿

import HOC1 from 'app/hocs/hoc1';

说

TS2307: Cannot find module 'app/hocs/hoc1'.

我不想在所有HOC中添加类型定义。解决方案是什么，为什么会出现此错误？

[EDIT] 我也在baseUrl中使用tsconfig。我的文件夹结构是

/Project/configs/tsconfig
/Project/src/app/hocs

在tsconfig中，我通过this文档给了baseUrl作为../src。

另一个编辑 我的webpack配置看起来像：

    {
        test: /\.(t|j)sx?$/,
        loader: 'happypack/loader?id=jsx-without-proptypes',
        include: [
          path.resolve(__dirname),
          path.resolve(__dirname, '../src'),
        ],
      },

整个Webpack配置看起来像

const config = {
  context: path.resolve(__dirname, '../src'),

  mode: NODE_ENV,

  optimization: {
    splitChunks: false,
    nodeEnv: NODE_ENV,
    minimize: false,
  },

  node: {
    net: 'empty',
  },

  output: {
    path: path.resolve(__dirname, '../build/public/assets'),
    publicPath: '/assets/',
    sourcePrefix: '  ',
    pathinfo: DEBUG, //https://webpack.js.org/configuration/output/#output-pathinfo
  },

  module: {
    noParse: [/html2canvas/],
    rules: [
      {
        test: /\.tsx?$/,
        enforce: 'pre',
        use: { loader: 'awesome-typescript-loader' },
      },
      ...shimLoaders,
      ...selectiveModulesLoader,
      {
        test: /\.(t|j)sx?$/,
        loader: 'happypack/loader?id=jsx-without-proptypes',
        include: [
          path.resolve(__dirname),
          path.resolve(__dirname, '../src'),
        ],
      },
      {
        test: /\.jsx?$/,
        loader: 'happypack/loader?id=jsx-without-lodash-plugin',
        include: [
          path.resolve(__dirname, '../src/app/modules/insights/'),
        ],
        exclude: /node_modules/,
      },
      {
        test: /\.jsx?$/,
        loader: 'happypack/loader?id=jsx-with-proptypes',
      },
      {
        test: /\.jsx?$/,
        loader: 'babel-loader',
        query: {
          presets: [['env', { include: ['babel-plugin-transform-es2015-template-literals'] }]],
        },
      },
      {
        test: /\.css$/,
        use: getCssLoaders({
          pwd: PWD,
          debug: DEBUG,
        }),
      },
      ...getScssRules(DEBUG, PWD),
      {
        test: /\.less$/,
        use: [DEBUG ? 'css-loader' : 'css-loader?minimize', 'less-loader'],
      },
      {
        test: /\.txt$/,
        loader: 'raw-loader',
      },
      {
        test: /\.svg$/,
        loader: 'spr-svg-loader',
      },
      {
        test: /\.(png|jpg|jpeg|gif)$/,
        loader: 'url-loader',
        query: {
          name: DEBUG ? '[path][name].[ext]' : '[hash].[ext]', // ?[hash]
          limit: 10000,
        },
      },
      {
        test: /\.(woff|woff2)$/,
        loader: 'url-loader?name=fonts/[name].[ext]&limit=65000&mimetype=application/font-woff',
      },
      {
        test: /\.(otf|ttf)$/,
        loader: 'url-loader?name=fonts/[name].[ext]&limit=65000&mimetype=application/octet-stream',
      },
      {
        test: /\.eot$/,
        loader: 'url-loader?name=fonts/[name].[ext]&limit=65000&mimetype=application/vnd.ms-fontobject',
      },
      {
        test: /\.(wav|mp3)$/,
        loader: 'file-loader',
        query: {
          name: DEBUG ? '[path][name].[ext]' : '[hash].[ext]', // ?[hash]
        },
      },
      {
        test: /\.pug/,
        loader: 'pug-loader',
      },
      {
        test: /\.html$/,
        include: /src\/app/,
        loader: StringReplacePlugin.replace({
          replacements: [
            {
              //Replaces ES6 strings from languagePack to simple string
              pattern: /__\(\s*`([^`]*)`\s*\)/gi,
              replacement: (match, p1) => {
                let replacedStr = p1;
                replacedStr = replacedStr.replace(new RegExp('\\$\\{([\\w\\.\\:\\-]+)\\}', 'g'), '\' + $1 + \'');
                return `'${replacedStr}'`;
              },
            },
            {
              //Following methods - look out carefully for the *quotes* (single/double)
              //doing what i18nPlugin would do for html files - with the *single* quotes
              pattern: /__\(\s*'(.+?)'\s*\)/g,
              replacement: (match, p1) => {
                const replacedStr = p1;
                return `'${replacedStr}'`;
              },
            },
            {
              //doing what i18nPlugin would do for html files - with the *double* quotes
              pattern: /__\(\s*"(.+?)"\s*\)/g,
              replacement: (match, p1) => {
                const replacedStr = p1;
                return `"${replacedStr}"`;
              },
            },
          ],
        }),
      },
    ],
  },
  resolve: {
    modules: [
      path.resolve(PWD),
      path.resolve(PWD, '..'),
      'node_modules',
      'web_modules',
      'src',
    ],
    extensions: ['.js', '.jsx', '.ts', '.tsx', '.json', '.webpack.js', '.web.js'],
    alias: ALIAS,
    // symlinks: false, //https://webpack.js.org/configuration/resolve/#resolve-symlinks, https://github.com/webpack/webpack/issues/1643
  },

  plugins: [getProvidePlugin(), getLoaderOptionPlugin({ debug: DEBUG }), ...getHappypackPlugin({ debug: DEBUG })],

  resolveLoader: {
    modules: ['node_modules', path.resolve(PWD, '../../node_modules'), path.resolve(PWD, './config/loaders/')],
    alias: {
      text: 'raw-loader', // treat text plugin as raw-loader
      jst: 'ejs-loader',
      style: 'style-loader',
      imports: 'imports-loader',
    },
  },

  bail: !DEBUG,

  watch: DEBUG,

  cache: DEBUG,

  stats: DEBUG ?
    {
      colors: true,
      reasons: false,
      hash: VERBOSE,
      version: VERBOSE,
      timings: true,
      chunks: false,
      chunkModules: VERBOSE,
      cached: VERBOSE,
      cachedAssets: VERBOSE,
      performance: true,
    } :
    { all: false, assets: true, warnings: true, errors: true, errorDetails: false },
};

另一个编辑

webpack config上定义的别名也没有解决问题。

Answer 1

https://webpack.js.org/configuration/resolve/#resolve-alias

使用别名

要将导入映射到正确的文件，您需要使用webpack配置中的config.resolve.alias字段。

您的情况将如下所示：

const config = {
  resolve: {
    alias: {
      'app': path.resolve(__dirname, 'src/app/'),
    },
  },
};

Answer 2

我不是100％肯定我做对了，但是我也在tsconfig中指定了paths键，如下所示：

"baseUrl": "./src",
"paths": {
  "@common/*": ["./common/*"],
  "@moduleA/*": ["./moduleA/*"],
  "@moduleB/*": ["./moduleB/*"],
}

，看来一切正常。 @前缀只是我在识别模块和npm依赖项之间所做的事情

如何在React应用程序的TypeScript文件中导入js模块（具有绝对路径）？

2 个答案:

使用别名