vue.config.js

'use strict'
const path = require('path')

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

// 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 method:
// port = 9527 npm run dev OR npm run dev --port = 9527
const port = process.env.port || process.env.npm_config_port || 8010 // 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
   */
  publicPath: '/',
  outputDir: 'dist',
  assetsDir: 'static',
  productionSourceMap: false,
  devServer: {
    port: 8010,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      '/gjjs/business/': {
        target: 'http://127.0.0.1:8081',
        changeOrigin: true,
        pathRewrite: {
          '^/gjjs/business': '/gjjs/business'
        }
      },
      '/gjjs/report/': {
        target: 'http://127.0.0.1:8082',
        changeOrigin: true,
        pathRewrite: {
          '^/gjjs/report': '/gjjs/report'
        }
      },
      
      '/gjjs/devtools/': {
        target: 'http://127.0.0.1:8083',
        changeOrigin: true,
        pathRewrite: {
          '^/gjjs/devtools': '/gjjs/devtools'
        }
      },
      '/gjjs/elec/': {
        target: 'http://127.0.0.1:8084',
        changeOrigin: true,
        pathRewrite: {
          '^/gjjs/elec': '/gjjs/elec'
        }
      },
      '/gjjs/test/': {
        target: 'http://127.0.0.1:8089',
        changeOrigin: true,
        pathRewrite: {
          '^/gjjs/test': '/gjjs/test'
        }
      },

      /**
       * ocr智能识别服务
       */
      '/ocr/': {
        // target: 'http://192.168.0.110:5010',
        target: 'http://127.0.0.1:5000',
        changeOrigin: true,
        pathRewrite: {
          '^/ocr': '/'
        }
      },
      /**
       * 电证系统
       */
      '/esfeserver/': {
        // target: 'http://192.168.0.110:8090',
        target: 'http://114.115.138.98:8300',
        changeOrigin: true,
        pathRewrite: {
          '^/esfeserver': '/esfeserver'
        }
      }
    }
  },
  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.
    devtool: 'source-map',
    resolve: {
      alias: {
        '~': resolve('src')
      }
    },
    output: {
      // 方便浏览器看源码
      devtoolModuleFilenameTemplate: (info) => {
        const resPath = info.resourcePath;
        if ((/\.vue$/.test(resPath) && info.allLoaders !== '') || /node_modules/.test(resPath)) {
          return `webpack:///${resPath}?${info.hash}`;
        }
        return `webpack:///${resPath.replace('./src', 'SourceCode')}`;
      }
    }
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').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'
      }
    ])

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

    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')
        }
      )
  }
}