Home Web Front-end JS Tutorial Detailed explanation of vue-cli 3.0 usage

Detailed explanation of vue-cli 3.0 usage

May 02, 2018 am 11:27 AM
vue-cli use Detailed explanation

This time I will bring you a detailed explanation of the use of vue-cli 3.0, what are the precautions when using vue-cli 3.0, the following is a practical case, let's take a look.

Environment installation

A new version of scaffolding, very high quality, remember this name@vue/cli, yes, this is your npm Or just install yarn. Make sure the global environment has it first.

npm install -g @vue/cli
yarn add global @vue/cli
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Create project

Here is a comparison with the previous version before 2.X. The new version adds the plug-in and templates have been ported to the command line interface.

#Old versionCreate command2.xvue init 3.xvue create

来一张图把 ,这里已经有几个默认配好的模板了,我们选最后的Manually select features

vue-cli3.0在你创建后会有一个保存当前配置的功能

配置项目插件和功能

这里就很傻瓜了, 你要集成什么 就选就行了。我这里选个我比较常用的。

  1. TypeScript

  2. PWA

  3. Vue-router

  4. Vuex

  5. CSS预处理

  6. eslint prettier

  7. 自动化测试<a href="http://www.php.cn/php/php-tp-unittesting.html" target="_blank">单元测试</a> 、e2e

这里我选LESS

这里我选eslint + prettier

这里选择语法检查的方式 保存就检查 还是fix和commit时候检查,我就默认选第一个了

这里单元测试 插件我选jest

这里是把babel,postcss,eslint这些配置文件放哪

  1. 独立文件放置

  2. package.json

个人喜好 这里我独立放

最后就是选择 是否记录一下? 下次继续使用这套配置 ,这里咱就不存了 这玩呢存多了 我都不知道怎么删 知道的小哥哥小姐姐麻烦 告诉我下哈。

ok最后确定后 等待装好吧

嗖 装好了

启动项目进入目录,启动项目 这里 vue-cli 3.x 默认会打开浏览器 地址也会打在控制台。

  yarn serve 
  // OR
  npm run serve
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启动后的界面就不截图了 ,按步骤正常操作下来应该跟之前版本一样。

项目分析

首先看下整体目录 比 2.x之前 是精简了不少

去掉了2.x buildconfig等目录 ,大部分配置 都集成到vue.config.js这里了

vue.config.js里
大概包括了配置 常用的输出路径名、跟目录、预处理、devServer配置、pwa、dll、第三方插件等等
详细配置可以看官方文档 详细config配置

如何随心所欲

1. 服务器配置修改

这里我先改个端口, 修改vue.config.js 然后重新启动工程 , 可以看到已经改成5999端口了

module.exports = {
 lintOnSave: false,
 devServer: {
  port: 5999
 }
}
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2. 常用webpack配置修改

webpack的配置在这个属性里修改configureWebpack  

包括plugins也可以自己扩展 ,本身尤大已经把常用的都封装了 ,不满足可以自行扩展。

这里改个webpack devtool输出方式、默认那个我属实不知道怎么跟踪代码

configureWebpack: config => {
  if (process.env.NODE_ENV === 'development') {
    config.devtool = 'source-map'
    // mutate config for production...
  } 
}
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其他配置 就不一一介绍了 具体可以看这里webpack

3. 全局变量的设置

在项目根目录 创建二个文件

.env.development
.env.production

里面配置键值对就行了

但要注意 这里必须以VUE_APP开头

这样我们就可以自定义个全局变量在某个模式下

VUE_APP_MOCK_URL = 'http://xxxx.xxx.xx.xx/mockjs/'
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比如这样在axios中就可以配置根路径了

const service = axios.create({
  baseURL: process.env.VUE_APP_MOCK_URL
})
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相信看了本文案例你已经掌握了方法,更多精彩请关注php中文网其它相关文章!

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