vue创建多项目工程

我司的一个系统要重构,新系统计划用vue开发,但是由于旧系统过于庞大,在开发时使用分包开发(多系统),所以老大要求在开发新系统时也要分成多个系统。但是本人又不想在多个系统中维护一堆同样的代码(为保持风格一致,需要使用公共的样式、组件等),遂研究如何在一个vue项目中创建多个系统。

先根据这篇文章搭建一个可以本地访问的多系统前端项目

创建新项目

vue create multi-project

创建时的选项可以自己选择,为简洁计,我只在基本的选择上添加了routerstore
创建完成的项目结构如下:

初始目录结构

使用脚手架创建的vue项目均为单页应用,但在此处我们需要把它修改为多页应用。
将目录结构调整如下:

多系统工程目录结构

在官方文档中给出的解决方法是在vue.config.js配置项pages
官方文档

vue.config.js配置参考文档
修改vue.config.js文件为:

module.exports = {
  pages: {
    projectA: {
      // page 的入口
      entry: 'src/modules/projectA/main.js',
      // 模板来源
      template: 'public/index.html',
      // 在 dist/index.html 的输出
      filename: 'projectA.html',
      // 当使用 title 选项时,
      // template 中的 title 标签需要是 <%= htmlWebpackPlugin.options.title %>
      title: 'project A Page',
      // 在这个页面中包含的块,默认情况下会包含
      // 提取出来的通用 chunk 和 vendor chunk。
      chunks: ['chunk-vendors', 'chunk-common', 'projectA']
    },
    // 当使用只有入口的字符串格式时,
    // 模板会被推导为 `public/subpage.html`
    // 并且如果找不到的话,就回退到 `public/index.html`。
    // 输出文件名会被推导为 `subpage.html`。
    projectB: {
      // page 的入口
      entry: 'src/modules/projectB/main.js',
      // 模板来源
      template: 'public/index.html',
      // 在 dist/index.html 的输出
      filename: 'projectB.html',
      // 当使用 title 选项时,
      // template 中的 title 标签需要是 <%= htmlWebpackPlugin.options.title %>
      title: 'project B Page',
      // 在这个页面中包含的块,默认情况下会包含
      // 提取出来的通用 chunk 和 vendor chunk。
      chunks: ['chunk-vendors', 'chunk-common', 'projectB']
    }
  }
}

重新启动项目,访问下面两个地址即可看到多页面的效果。
http://localhost:8080/projectA/
http://localhost:8080/projectB/
此时可以正确看到两个项目的App页面,但在App通过router-vue暴露出去的页面却看不到,查看network报错为We're sorry but multi-project3 doesn't work properly without JavaScript enabled. Please enable it to continue.
查资料后,把router的history修改为hash模式即可

打包部署到服务器

此时执行npm run build打包,打包结果如下(自己当时没有截图,借用别人的图):

打包结构混乱

两个不同的项目的文件各自编译打包,但并没有按项目分成不同的文件夹,我们进一步修改配置,将其改为按项目打包。
修改vue.config.js代码如下:

var projectname = process.argv[3]
var glob = require('glob')

function getEntry() {
  var entries = {}
  if (process.env.NODE_ENV == 'production') {
    entries = {
      index: {
        // page的入口
        entry: 'src/modules/' + projectname + '/main.js',
        // 模板来源
        template: 'public/index.html',
        // 在 dist/index.html 的输出
        filename: 'index.html',
        title: projectname,
        chunks: ['chunk-vendors', 'chunk-common', 'index']
      }
    }
  } else {
    var items = glob.sync( './src/modules/*/*.js')
    for (var i in items) {
      var filepath = items[i]
      var fileList = filepath.split('/');
      var fileName = fileList[fileList.length-2];
      entries[fileName] = {
        entry: `src/modules/${fileName}/main.js`,
        // 模板来源
        template: `public/index.html`,
        // 在 dist/index.html 的输出
        filename: `${fileName}.html`,
        // 提取出来的通用 chunk 和 vendor chunk。
        chunks: ['chunk-vendors', 'chunk-common', fileName]
      }
    }
  }
  return entries
}

var pages = getEntry()
module.exports = {
  productionSourceMap: false, // 生产禁止显示源代码
  outputDir: 'dist/' + projectname,
  pages: pages
}

现在执行以下命令进行打包:

#  npm run build [projectFileName]
npm run build projectA
npm run build projectB

打包结果如下:


分项目打包

把打包好的文件放到nginx上,访问结果如下:

image.png

跟上面是同样的问题,请求的js404
看了下打包后的文件,是打包后的文件中jscss等文件引用路径错误,手动修改后可以正常访问,所以只要修改打包配置,使文件引用路径符合要求就可以了

此时需要参考官网修改vue.config.js文件

publicPath: '/',  // 原配置
publicPath: '/' + projectname + '/',  // 修改后

之后再打包的文件引用路径就没有问题了

把之前的单项目修改为多项目

由于我们之前已经有一个小项目(vue单项目-修改自开源项目vue-admin-template),考虑到修改为多项目的代码修改量不是很大,所以继续在之前的项目中进行修改。
首先根据上面的步骤修改目录结构和vue.config.js文件,由于现有的项目采用后端返回路由,前端进行解析的方式动态加载路由,所以除了views外,apilayoutrouterstore目录也都在子项目目录中存在。其中store中的公共部分提取到父项目中,子项目中需要用到的路由部分留在子项目中。
目前为止,项目可以正常访问,只是公共组件SvgIcon无法使用,原因是把之前项目的vue.config.js文件中的内容给修改了,再加回去就好了。
直接把加载svg的配置加进去会报错Error: Cannot call .tap() on a plugin that has not yet been defined. Call plugin('preload').use() first.:

image.png

参考文章修改如下:
修改前:

config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

修改后:

const PreloadWebpackPlugin = require("@vue/preload-webpack-plugin");

config.plugin('preload').use(PreloadWebpackPlugin).tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

此时便可以正常使用SvgIcon组件了
此时vue.config.js文件如下:

'use strict'

const projectname = process.argv[3]
const glob = require('glob')

const PreloadWebpackPlugin = require("@vue/preload-webpack-plugin");

function getEntry() {
  let entries = {}
  if (process.env.NODE_ENV == 'production') {
    entries = {
      index: {
        // page的入口
        entry: 'src/modules/' + projectname + '/main.js',
        // 模板来源
        template: 'public/index.html',
        // 在 dist/index.html 的输出
        filename: 'index.html',
        title: projectname,
        chunks: ['chunk-vendors', 'chunk-common', 'index']
      }
    }
  } else {
    let items = glob.sync( './src/modules/*/*.js')
    for (let i in items) {
      let filepath = items[i]
      let fileList = filepath.split('/');
      let fileName = fileList[fileList.length-2];
      entries[fileName] = {
        entry: `src/modules/${fileName}/main.js`,
        // 模板来源
        template: `public/index.html`,
        // 在 dist/index.html 的输出
        filename: `${fileName}.html`,
        // 提取出来的通用 chunk 和 vendor chunk。
        chunks: ['chunk-vendors', 'chunk-common', fileName]
      }
    }
  }
  return entries
}

let pages = getEntry()

const path = require('path')
const defaultSettings = require('./src/settings.js')

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

const name = defaultSettings.title || 'vue Admin Template' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  outputDir: 'dist/' + projectname,
  publicPath: '/' + projectname + '/',
  pages: pages,
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    host: '0.0.0.0',
    port: port,
    open: true,
    https: true,
    overlay: {
      warnings: false,
      errors: true
    },
    before: require('./mock/mock-server.js'),
    proxy: {
      '/downloadFile': {
        // target: 'http://10.141.128.102:8401',
        // target: 'http://dhr-basic-service.apps.uat.taikangcloud.com/', //test
        target: 'http://127.0.0.1:88', //dev
        changeOrigin: true,
        ws: true,
        pathRewrite: {
          '^/downloadFile': '/'
        }
      },
    },
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    }
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').use(PreloadWebpackPlugin).tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        // fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/], // 文件黑名单
        fileBlacklist: [/\.map$/, /hot-update\.js$/],
        include: 'initial'
      }
    ])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .plugin('ScriptExtHtmlWebpackPlugin')
            .after('html')
            .use('script-ext-html-webpack-plugin', [{
            // `runtime` must same as runtimeChunk name. default is `runtime`
              inline: /runtime\..*\.js$/
            }])
            .end()
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                libs: {
                  name: 'chunk-libs',
                  test: /[\\/]node_modules[\\/]/,
                  priority: 10,
                  chunks: 'initial' // only package third parties that are initially dependent
                },
                elementUI: {
                  name: 'chunk-elementUI', // split elementUI into a single package
                  priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                  test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
                },
                commons: {
                  name: 'chunk-commons',
                  test: resolve('src/components'), // can customize your rules
                  minChunks: 3, //  minimum common number
                  priority: 5,
                  reuseExistingChunk: true
                }
              }
            })
          // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
          config.optimization.runtimeChunk('single')
        }
      )
  }
}

但是,我又双叕发现问题啦!!!
打包部署到nginx后,有一个runtime.**.js文件找不到

找不到runtime.**.js

找了半天没找到好方法,最后把vue.config.js文件中的最后一个config注释掉后好了
但是这个配置这儿不太熟,别人写的配置也看不太懂,之后可能会遇到其他问题,到时候自求多福吧
修改后的vue.config.js文件如下:

'use strict'

const projectname = process.argv[3]
const glob = require('glob')

const PreloadWebpackPlugin = require("@vue/preload-webpack-plugin");

function getEntry() {
  let entries = {}
  if (process.env.NODE_ENV == 'production') {
    entries = {
      index: {
        // page的入口
        entry: 'src/modules/' + projectname + '/main.js',
        // 模板来源
        template: 'public/index.html',
        // 在 dist/index.html 的输出
        filename: 'index.html',
        title: projectname,
        chunks: ['chunk-vendors', 'chunk-common', 'index']
      }
    }
  } else {
    let items = glob.sync( './src/modules/*/*.js')
    for (let i in items) {
      let filepath = items[i]
      let fileList = filepath.split('/');
      let fileName = fileList[fileList.length-2];
      entries[fileName] = {
        entry: `src/modules/${fileName}/main.js`,
        // 模板来源
        template: `public/index.html`,
        // 在 dist/index.html 的输出
        filename: `${fileName}.html`,
        // 提取出来的通用 chunk 和 vendor chunk。
        chunks: ['chunk-vendors', 'chunk-common', fileName]
      }
    }
  }
  return entries
}

let pages = getEntry()

const path = require('path')
const defaultSettings = require('./src/settings.js')

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

const name = defaultSettings.title || 'vue Admin Template' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  outputDir: 'dist/' + projectname,
  publicPath: '/' + projectname + '/',
  pages: pages,
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    host: '0.0.0.0',
    port: port,
    open: true,
    https: true,
    overlay: {
      warnings: false,
      errors: true
    },
    before: require('./mock/mock-server.js'),
    proxy: {
      '/downloadFile': {
        // target: 'http://10.141.128.102:8401',
        // target: 'http://dhr-basic-service.apps.uat.taikangcloud.com/', //test
        target: 'http://127.0.0.1:88', //dev
        changeOrigin: true,
        ws: true,
        pathRewrite: {
          '^/downloadFile': '/'
        }
      },
    },
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    }
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').use(PreloadWebpackPlugin).tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/], // 文件黑名单
        include: 'initial'
      }
    ])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // config
    //   .when(process.env.NODE_ENV !== 'development',
    //     config => {
    //       config
    //         .plugin('ScriptExtHtmlWebpackPlugin')
    //         .after('html')
    //         .use('script-ext-html-webpack-plugin', [{
    //         // `runtime` must same as runtimeChunk name. default is `runtime`
    //           inline: /runtime\..*\.js$/
    //         }])
    //         .end()
    //       config
    //         .optimization.splitChunks({
    //           chunks: 'all',
    //           cacheGroups: {
    //             libs: {
    //               name: 'chunk-libs',
    //               test: /[\\/]node_modules[\\/]/,
    //               priority: 10,
    //               chunks: 'initial' // only package third parties that are initially dependent
    //             },
    //             elementUI: {
    //               name: 'chunk-elementUI', // split elementUI into a single package
    //               priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
    //               test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
    //             },
    //             commons: {
    //               name: 'chunk-commons',
    //               test: resolve('src/components'), // can customize your rules
    //               minChunks: 3, //  minimum common number
    //               priority: 5,
    //               reuseExistingChunk: true
    //             }
    //           }
    //         })
    //       // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
    //       config.optimization.runtimeChunk('single')
    //     }
    //   )
  }
}

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