9css分离:extract-text-webpack-plugin

css分离:extract-text-webpack-plugin

  1. 安装该插件:


    for webpack 1

    npm install –save-dev [email protected]

    for webpack 2

    npm install –save-dev [email protected]

    for webpack 3

    npm install –save-dev extract-text-webpack-plugin

    for webpack 4

    npm i extract-text-webpack-plugin@next -D

  2. 在webpack-config.js中引入插件
    const extractTextPlugin=require(“extract-text-webpack-plugin”);
  3. 配置plugins:这里new一下这个对象,与上面那个配置插件用逗号分隔
    new extractTextPlugin(“/css/index,.css”)

  4. 这里的/css/index.css是分离后的路径位置。这部配置完成后,包装代码:还要修改原来我们的style-loader和css-loader

    • [x] 修改代码如下:
      module:{
              rules: [
                  {
                    test: /\.css$/,
                    use: extractTextPlugin.extract({
                      fallback: "style-loader",
                      use: "css-loader"
                    })
                  },{
                     test:/\.(png|jpg|gif)/ ,
                     use:[{
                         loader:'url-loader',
                         options:{
                             limit:500000
                         }
                     }]
                  }
                ]
          },
  5. 使用webpack进行打包

    • 注意:虽然把css文件分离出来了,但是css路径不对
    • 用==publishPath==来解决

      • publicPath:是在webpack.config.js文件的output选项中,主要作用就是处理静态文件路径的
      • 在处理前需要在webpack.config.js上方声明一个website对象
      var website={
          publicPath:"http://192.168.1.108:1717"
      }
      • 注意:这里的IP和端口是本机的ip或者是你devServer配置的IP和端口 //==publicPath里面的内内容一定要写正确:用ipconfig查看电脑的ip地址,然后冒号后面跟自己设置的端口==
  6. 在output选项中引用这个对象的publicPath属性

    //出口文件的配置项
    output:{
        //输出的路径,用了Node语法
        path:path.resolve(__dirname,'dist'),
        //输出的文件名称
        filename:'[name].js',
        publicPath:website.publicPath
    },
  7. 使用webpack进行打包,这时原来的相对路径就会变为绝对路径(绝对路径速度会更快)


    gitub官网

    webpack4版本以上css分离

*若出现下列错误,说明ip没写对

> y@1.0.0 server F:\webLearn\webpackLearn
> webpack-dev-server

events.js:183
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRNOTAVAIL 10.212.109.18:8087
    at Object._errnoException (util.js:992:11)
    at _exceptionWithHostPort (util.js:1014:20)
    at Server.setupListenHandle [as _listen2] (net.js:1338:19)
    at listenInCluster (net.js:1396:12)
    at doListen (net.js:1505:7)
    at _combinedTickCallback (internal/process/next_tick.js:141:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
    at Function.Module.runMain (module.js:695:11)
    at startup (bootstrap_node.js:191:16)
    at bootstrap_node.js:612:3
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! y@1.0.0 server: `webpack-dev-server`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the y@1.0.0 server script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\勾丽娜\AppData\Roaming\npm-cache\_logs\2018-07-11T07_46_12_914Z-debug.log
PS F:\webLearn\webpackLearn>

修改好正确的ip地址就可以运行成功了,哈哈

猜你喜欢

转载自blog.csdn.net/free_and_strong/article/details/81780294