@vue/cli+webpack搭建多页面应用

摘要：本文记录了用搭建项目后，配置成多页面应用的过程。项目地址首先全局安装创建初始项目创建后默认是一个单页面应用，在默认结构的基础上将目录结构改为如下形式。其中目录下的和就是多页面应用中的两个页面。

项目地址：https://github.com/mandyshen9...

首先全局安装@vue/cli

npm install -g @vue/cli

创建@vue/cli+webpack初始项目

vue init webpack my-project

创建后默认是一个vue单页面应用，在默认结构的基础上将目录结构改为如下形式。其中pages目录下的cell和home就是多页面应用中的两个页面。

"use strict"
const path = require("path")
const config = require("../config")
const ExtractTextPlugin = require("extract-text-webpack-plugin")
const packageConfig = require("../package.json")

exports.assetsPath = function (_path) {
  const assetsSubDirectory = process.env.NODE_ENV === "production"
    ? config.build.assetsSubDirectory
    : config.dev.assetsSubDirectory

  return path.posix.join(assetsSubDirectory, _path)
}

exports.cssLoaders = function (options) {
  options = options || {}

  const cssLoader = {
    loader: "css-loader",
    options: {
      sourceMap: options.sourceMap
    }
  }

  const postcssLoader = {
    loader: "postcss-loader",
    options: {
      sourceMap: options.sourceMap
    }
  }

  // generate loader string to be used with extract text plugin
  function generateLoaders (loader, loaderOptions) {
    const loaders = options.usePostCSS ? [cssLoader, postcssLoader] : [cssLoader]

    if (loader) {
      loaders.push({
        loader: loader + "-loader",
        options: Object.assign({}, loaderOptions, {
          sourceMap: options.sourceMap
        })
      })
    }

    // Extract CSS when that option is specified
    // (which is the case during production build)
    if (options.extract) {
      return ExtractTextPlugin.extract({
        use: loaders,
        fallback: "vue-style-loader"
      })
    } else {
      return ["vue-style-loader"].concat(loaders)
    }
  }

  // https://vue-loader.vuejs.org/en/configurations/extract-css.html
  return {
    css: generateLoaders(),
    postcss: generateLoaders(),
    less: generateLoaders("less"),
    sass: generateLoaders("sass", { indentedSyntax: true }),
    scss: generateLoaders("sass"),
    stylus: generateLoaders("stylus"),
    styl: generateLoaders("stylus")
  }
}

// Generate loaders for standalone style files (outside of .vue)
exports.styleLoaders = function (options) {
  const output = []
  const loaders = exports.cssLoaders(options)

  for (const extension in loaders) {
    const loader = loaders[extension]
    output.push({
      test: new RegExp("." + extension + "$"),
      use: loader
    })
  }

  return output
}

/*这里是多页面添加的部分------------------------------------开始*/
// glob是webpack安装时依赖的一个第三方模块，该模块允许你使用 *等符号, 例如lib/*.js就是获取lib文件夹下的所有js后缀名的文件
var glob = require("glob")
// 页面模板
var HtmlWebpackPlugin = require("html-webpack-plugin")
// 取得相应的页面路径，因为之前的配置，所以在本项目中是src文件夹下的pages文件夹
var PAGE_PATH = path.resolve(__dirname, "../src/pages")
// 用于做相应的merge处理
var merge = require("webpack-merge")

//多入口配置
// 通过glob模块读取pages文件夹下的所有对应文件夹下的js后缀文件，如果该文件存在
// 那么就作为入口处理
exports.entries = function () {
  var entryFiles = glob.sync(PAGE_PATH + "/*/*.js")
  var map = {}
  entryFiles.forEach((filePath) => {
    var filename = filePath.substring(filePath.lastIndexOf("/") + 1, filePath.lastIndexOf("."))
    map[filename] = filePath
  })
  return map
}

//多页面输出配置
// 与上面的多页面入口配置相同，读取pages文件夹下的对应的html后缀文件，然后放入数组中
exports.htmlPlugin = function () {
  let entryHtml = glob.sync(PAGE_PATH + "/*/*.html")
  let arr = []
  entryHtml.forEach((filePath) => {
    let filename = filePath.substring(filePath.lastIndexOf("/") + 1, filePath.lastIndexOf("."))
    let conf = {
      // 模板来源
      template: filePath,
      // 文件名称
      filename: filename + ".html",
      // 页面模板需要加对应的js脚本，如果不加这行则每个页面都会引入所有的js脚本
      chunks: ["manifest", "vendor", filename],
      inject: true
    }
    if (process.env.NODE_ENV === "production") {
      conf = merge(conf, {
        minify: {
          removeComments: true,
          collapseWhitespace: true,
          removeAttributeQuotes: true
        },
        chunksSortMode: "dependency"
      })
    }
    arr.push(new HtmlWebpackPlugin(conf))
  })
  return arr
}
/* 这里是添加的部分--------------------------------------------结束*/

exports.createNotifierCallback = () => {
  const notifier = require("node-notifier")

  return (severity, errors) => {
    if (severity !== "error") return

    const error = errors[0]
    const filename = error.file && error.file.split("!").pop()

    notifier.notify({
      title: packageConfig.name,
      message: severity + ": " + error.name,
      subtitle: filename || "",
      icon: path.join(__dirname, "logo.png")
    })
  }
}

"use strict"
const path = require("path")
const utils = require("./utils")
const config = require("../config")
const vueLoaderConfig = require("./vue-loader.conf")

function resolve (dir) {
  return path.join(__dirname, "..", dir)
}

const createLintingRule = () => ({
  test: /.(js|vue)$/,
  loader: "eslint-loader",
  enforce: "pre",
  include: [resolve("src"), resolve("test")],
  options: {
    formatter: require("eslint-friendly-formatter"),
    emitWarning: !config.dev.showEslintErrorsInOverlay
  }
})

module.exports = {
  context: path.resolve(__dirname, "../"),
  /*多页面入口修改-------------------------------开始 */
  // 将原来默认的入口配置注释掉
  // entry: {
  //   app: "./src/main.js"
  // },
  // 添加多页面入口配置
  entry: utils.entries(),
  /*多页面入口修改-------------------------------结束 */
  output: {
    path: config.build.assetsRoot,
    filename: "[name].js",
    publicPath: process.env.NODE_ENV === "production"
      ? config.build.assetsPublicPath
      : config.dev.assetsPublicPath
  },
  resolve: {
    extensions: [".js", ".vue", ".json"],
    alias: {
      "vue$": "vue/dist/vue.esm.js",
      "@": resolve("src"),
    }
  },
  module: {
    rules: [
      ...(config.dev.useEslint ? [createLintingRule()] : []),
      {
        test: /.vue$/,
        loader: "vue-loader",
        options: vueLoaderConfig
      },
      {
        test: /.js$/,
        loader: "babel-loader",
        include: [resolve("src"), resolve("test"), resolve("node_modules/webpack-dev-server/client")]
      },
      {
        test: /.(png|jpe?g|gif|svg)(?.*)?$/,
        loader: "url-loader",
        options: {
          limit: 10000,
          name: utils.assetsPath("img/[name].[hash:7].[ext]")
        }
      },
      {
        test: /.(mp4|webm|ogg|mp3|wav|flac|aac)(?.*)?$/,
        loader: "url-loader",
        options: {
          limit: 10000,
          name: utils.assetsPath("media/[name].[hash:7].[ext]")
        }
      },
      {
        test: /.(woff2?|eot|ttf|otf)(?.*)?$/,
        loader: "url-loader",
        options: {
          limit: 10000,
          name: utils.assetsPath("fonts/[name].[hash:7].[ext]")
        }
      }
    ]
  },
  node: {
    // prevent webpack from injecting useless setImmediate polyfill because Vue
    // source contains it (although only uses it if it"s native).
    setImmediate: false,
    // prevent webpack from injecting mocks to Node native modules
    // that does not make sense for the client
    dgram: "empty",
    fs: "empty",
    net: "empty",
    tls: "empty",
    child_process: "empty"
  }
}

build目录下的webpack.dev.conf.js文件

"use strict"
const utils = require("./utils")
const webpack = require("webpack")
const config = require("../config")
const merge = require("webpack-merge")
const path = require("path")
const baseWebpackConfig = require("./webpack.base.conf")
const CopyWebpackPlugin = require("copy-webpack-plugin")
const HtmlWebpackPlugin = require("html-webpack-plugin")
const FriendlyErrorsPlugin = require("friendly-errors-webpack-plugin")
const portfinder = require("portfinder")

const HOST = process.env.HOST
const PORT = process.env.PORT && Number(process.env.PORT)

const devWebpackConfig = merge(baseWebpackConfig, {
  module: {
    rules: utils.styleLoaders({ sourceMap: config.dev.cssSourceMap, usePostCSS: true })
  },
  // cheap-module-eval-source-map is faster for development
  devtool: config.dev.devtool,

  // these devServer options should be customized in /config/index.js
  devServer: {
    clientLogLevel: "warning",
    historyApiFallback: {
      rewrites: [
        { from: /.*/, to: path.posix.join(config.dev.assetsPublicPath, "index.html") },
      ],
    },
    hot: true,
    contentBase: false, // since we use CopyWebpackPlugin.
    compress: true,
    host: HOST || config.dev.host,
    port: PORT || config.dev.port,
    open: config.dev.autoOpenBrowser,
    overlay: config.dev.errorOverlay
      ? { warnings: false, errors: true }
      : false,
    publicPath: config.dev.assetsPublicPath,
    proxy: config.dev.proxyTable,
    quiet: true, // necessary for FriendlyErrorsPlugin
    watchOptions: {
      poll: config.dev.poll,
    }
  },
  plugins: [
    new webpack.DefinePlugin({
      "process.env": require("../config/dev.env")
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.
    new webpack.NoEmitOnErrorsPlugin(),
    // https://github.com/ampedandwired/html-webpack-plugin
    /*注释这个区域的代码------------------------------------------开始 */
    // new HtmlWebpackPlugin({
    //   filename: "index.html",
    //   template: "index.html",
    //   inject: true
    // }),
    /*注释这个区域的代码------------------------------------------结束 */
    // copy custom static assets
    new CopyWebpackPlugin([
      {
        from: path.resolve(__dirname, "../static"),
        to: config.dev.assetsSubDirectory,
        ignore: [".*"]
      }
    ])
    /*添加 .concat(utils.htmlPlugin())-----------------------------开始 */ 
  ].concat(utils.htmlPlugin())
  /*添加 .concat(utils.htmlPlugin())-------------------------------结束*/ 
})

module.exports = new Promise((resolve, reject) => {
  portfinder.basePort = process.env.PORT || config.dev.port
  portfinder.getPort((err, port) => {
    if (err) {
      reject(err)
    } else {
      // publish the new Port, necessary for e2e tests
      process.env.PORT = port
      // add port to devServer config
      devWebpackConfig.devServer.port = port

      // Add FriendlyErrorsPlugin
      devWebpackConfig.plugins.push(new FriendlyErrorsPlugin({
        compilationSuccessInfo: {
          messages: [`Your application is running here: http://${devWebpackConfig.devServer.host}:${port}`],
        },
        onErrors: config.dev.notifyOnErrors
        ? utils.createNotifierCallback()
        : undefined
      }))

      resolve(devWebpackConfig)
    }
  })
})

"use strict"
const path = require("path")
const utils = require("./utils")
const webpack = require("webpack")
const config = require("../config")
const merge = require("webpack-merge")
const baseWebpackConfig = require("./webpack.base.conf")
const CopyWebpackPlugin = require("copy-webpack-plugin")
const HtmlWebpackPlugin = require("html-webpack-plugin")
const ExtractTextPlugin = require("extract-text-webpack-plugin")
const OptimizeCSSPlugin = require("optimize-css-assets-webpack-plugin")
const UglifyJsPlugin = require("uglifyjs-webpack-plugin")

const env = process.env.NODE_ENV === "testing"
  ? require("../config/test.env")
  : require("../config/prod.env")

const webpackConfig = merge(baseWebpackConfig, {
  module: {
    rules: utils.styleLoaders({
      sourceMap: config.build.productionSourceMap,
      extract: true,
      usePostCSS: true
    })
  },
  devtool: config.build.productionSourceMap ? config.build.devtool : false,
  output: {
    path: config.build.assetsRoot,
    filename: utils.assetsPath("js/[name].[chunkhash].js"),
    chunkFilename: utils.assetsPath("js/[id].[chunkhash].js")
  },
  plugins: [
    // http://vuejs.github.io/vue-loader/en/workflow/production.html
    new webpack.DefinePlugin({
      "process.env": env
    }),
    new UglifyJsPlugin({
      uglifyOptions: {
        compress: {
          warnings: false
        }
      },
      sourceMap: config.build.productionSourceMap,
      parallel: true
    }),
    // extract css into its own file
    new ExtractTextPlugin({
      filename: utils.assetsPath("css/[name].[contenthash].css"),
      // Setting the following option to `false` will not extract CSS from codesplit chunks.
      // Their CSS will instead be inserted dynamically with style-loader when the codesplit chunk has been loaded by webpack.
      // It"s currently set to `true` because we are seeing that sourcemaps are included in the codesplit bundle as well when it"s `false`, 
      // increasing file size: https://github.com/vuejs-templates/webpack/issues/1110
      allChunks: true,
    }),
    // Compress extracted CSS. We are using this plugin so that possible
    // duplicated CSS from different components can be deduped.
    new OptimizeCSSPlugin({
      cssProcessorOptions: config.build.productionSourceMap
        ? { safe: true, map: { inline: false } }
        : { safe: true }
    }),
    // generate dist index.html with correct asset hash for caching.
    // you can customize output by editing /index.html
    // see https://github.com/ampedandwired/html-webpack-plugin

    /*注释这个区域的内容------------------------------------------------------------------开始 */
    // new HtmlWebpackPlugin({
    //   filename: process.env.NODE_ENV === "testing"
    //     ? "index.html"
    //     : config.build.index,
    //   template: "index.html",
    //   inject: true,
    //   minify: {
    //     removeComments: true,
    //     collapseWhitespace: true,
    //     removeAttributeQuotes: true
    //     // more options:
    //     // https://github.com/kangax/html-minifier#options-quick-reference
    //   },
    //   // necessary to consistently work with multiple chunks via CommonsChunkPlugin
    //   chunksSortMode: "dependency"
    // }),
    /*注释这个区域的内容--------------------------------------------------------------------结束 */

    // keep module.id stable when vendor modules does not change
    new webpack.HashedModuleIdsPlugin(),
    // enable scope hoisting
    new webpack.optimize.ModuleConcatenationPlugin(),
    // split vendor js into its own file
    new webpack.optimize.CommonsChunkPlugin({
      name: "vendor",
      minChunks (module) {
        // any required modules inside node_modules are extracted to vendor
        return (
          module.resource &&
          /.js$/.test(module.resource) &&
          module.resource.indexOf(
            path.join(__dirname, "../node_modules")
          ) === 0
        )
      }
    }),
    // extract webpack runtime and module manifest to its own file in order to
    // prevent vendor hash from being updated whenever app bundle is updated
    new webpack.optimize.CommonsChunkPlugin({
      name: "manifest",
      minChunks: Infinity
    }),
    // This instance extracts shared chunks from code splitted chunks and bundles them
    // in a separate chunk, similar to the vendor chunk
    // see: https://webpack.js.org/plugins/commons-chunk-plugin/#extra-async-commons-chunk
    new webpack.optimize.CommonsChunkPlugin({
      name: "app",
      async: "vendor-async",
      children: true,
      minChunks: 3
    }),

    // copy custom static assets
    new CopyWebpackPlugin([
      {
        from: path.resolve(__dirname, "../static"),
        to: config.build.assetsSubDirectory,
        ignore: [".*"]
      }
    ])
    /*该位置添加.concat(utils.htmlPlugin())-------------------------------------------开始 */
  ].concat(utils.htmlPlugin())
    /*该位置添加.concat(utils.htmlPlugin())-------------------------------------------结束 */
})

if (config.build.productionGzip) {
  const CompressionWebpackPlugin = require("compression-webpack-plugin")

  webpackConfig.plugins.push(
    new CompressionWebpackPlugin({
      asset: "[path].gz[query]",
      algorithm: "gzip",
      test: new RegExp(
        ".(" +
        config.build.productionGzipExtensions.join("|") +
        ")$"
      ),
      threshold: 10240,
      minRatio: 0.8
    })
  )
}

if (config.build.bundleAnalyzerReport) {
  const BundleAnalyzerPlugin = require("webpack-bundle-analyzer").BundleAnalyzerPlugin
  webpackConfig.plugins.push(new BundleAnalyzerPlugin())
}

module.exports = webpackConfig

在cell 和 home 页面目录下分别创建js和html文件。具体代码见项目目录代码https://github.com/mandyshen9...。

运行项目

npm start

效果：

home页面（页面1）：

cell页面（页面2）：