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README
Apache-2.0

前言

想必你一定使用过易企秀或百度H5等微场景生成工具制作过炫酷的h5页面,除了感叹其神奇之处有没有想过其实现方式呢?本文从零开始实现一个H5编辑器项目完整设计思路和主要实现步骤,并开源前后端代码。有需要的小伙伴可以按照该教程从零实现自己的H5编辑器。(实现起来并不复杂,该教程只是提供思路,并非最佳实践)

演示地址:传送门

掘金文章:Vue + Koa从零打造一个H5页面可视化编辑器——Quark-h5 && 基于Koa2打造属于自己的MVC框架

编辑器预览:

技术栈

前端:
vue: 模块化开发少不了angular,react,vue三选一,这里选择了vue。
vuex: 状态管理
sass: css预编译器。
element-ui:不造轮子,有现成的优秀的vue组件库当然要用起来。没有的自己再封装一些就可以了。
loadsh:工具类

服务端:
koa:后端语言采用nodejs,koa文档和学习资料也比较多,express原班人马打造,这个正合适。
mongodb:一个基于分布式文件存储的数据库,比较灵活。

阅读前准备

1、了解vue技术栈开发
2、了解koa
3、了解mongodb

工程目录结构

|-- client					--------前端项目界面代码
    |--common					--------前端界面对应静态资源
    |--components				--------组件
    |--config					--------配置文件
    |--eventBus					--------eventBus
    |--filter					--------过滤器
    |--mixins					--------混入
    |--pages					--------页面
    |--router					--------路由配置
    |--store					--------vuex状态管理
    |--service					--------axios封装
    |--App.vue					--------App
    |--main.js					--------入口文件
    |--permission.js			--------权限控制
|-- server					--------服务器端项目代码
    |--confog					--------配置文件
    |--controller				--------数据库链接相关
    |--extend					--------框架扩展
    |--model					-------Schema和Model
    |--middleware				--------中间件
    |--core						--------Koa MVC实现自动加载核心文件
    |--views					--------ejs页面模板
    |--public					--------静态资源
    |--router.js				--------路由
    |--app.js					--------服务端入口
|-- common					--------前后端公用代码模块(如加解密)
|-- engine-template			--------页面模板引擎,使用webpack打包成js提供页面引用
|-- docs					--------预留编写项目文档目录
|-- config.json				--------配置文件

前端编辑器实现

编辑器的实现思路是:编辑器生成页面JSON数据,服务端负责存取JSON数据,渲染时从服务端取数据JSON交给前端模板处理。

数据结构

确认了实现逻辑,数据结构也是非常重要的,把一个页面定义成一个JSON数据,数据结构大致是这样的:

页面工程数据接口

{
	title: '', // 标题
	description: '', //描述
	coverImage: '', // 封面
	auther: '', // 作者
	script: '', // 页面插入脚本
	width: 375, // 高
	height: 644, // 宽
	pages: [], // 多页页面
	shareConfig: {}, // 微信分享配置
	pageMode: 0, // 渲染模式,用于扩展多种模式渲染,翻页h5/长页/PC页面等等
}

多页页面pages其中一页数据结构:

{
	name: '',
	elements: [], // 页面元素
	commonStyle: {
		backgroundColor: '',
		backgroundImage: '',
		backgroundSize: 'cover'
	},
	config: {}
}

元素数据结构:

{
	elName: '', // 组件名
	animations: [], // 图层的动画,可以支持多个动画
	commonStyle: {}, // 公共样式,默认样式
	events: [], // 事件配置数据,每个图层可以添加多个事件
	propsValue: {}, // 属性参数
	value: '', // 绑定值
	valueType: 'String', // 值类型
	isForm: false // 是否是表单控件,用于表单提交时获取表单数据
}

编辑器整体设计

  • 一个组件选择区,提供使用者选择需要的组件
  • 一个编辑预览画板,提供使用者拖拽排序页面预览的功能
  • 一个组件属性编辑,提供给使用者编辑组件内部props、公共样式和动画的功能 如图:

用户在左侧组件区域选择组件添加到页面上,编辑区域通过动态组件特性渲染出每个元素组件。

最后,点击保存将页面数据提交到数据库。至于数据怎么转成静态 HTML方法有很多。还有页面数据我们全部都有,我们可以做页面的预渲染,骨架屏,ssr,编译时优化等等。而且我们也可以对产出的活动页做数据分析~有很多想象的空间。

核心代码

编辑器核心代码,基于 Vue 动态组件特性实现:

为大家附上 Vue 官方文档:cn.vuejs.org/v2/api/#is

画板元素渲染

编辑画板只需要循环遍历pages[i].elements数组,将里面的元素组件JSON数据取出,通过动态组件渲染出各个组件,支持拖拽改变位置尺寸.

元素组件管理

在client目录新建plugins来管理组件库。也可以将该组件库发到npm上工程中通过npm管理

组件库

编写组件,考虑的是组件库,所以我们竟可能让我们的组件支持全局引入和按需引入,如果全局引入,那么所有的组件需要要注册到Vue component 上,并导出:

client/plugins下新建index.js入口文件

```
/**
 * 组件库入口
 * */
import Text from './text'
// 所有组件列表
const components = [
	Text
]
// 定义 install 方法,接收 Vue 作为参数
const install = function (Vue) {
	// 判断是否安装,安装过就不继续往下执行
	if (install.installed) return
	install.installed = true
	// 遍历注册所有组件
	components.map(component => Vue.component(component.name, component))
}

// 检测到 Vue 才执行,毕竟我们是基于 Vue 的
if (typeof window !== 'undefined' && window.Vue) {
	install(window.Vue)
}

export default {
	install,
	// 所有组件,必须具有 install,才能使用 Vue.use()
	Text
}
```

组件开发

示例: text文本组件

client/plugins下新建text组件目录

|-- text                --------text组件
    |--src              --------资源
    	|--index.vue    --------组件
    |--index.js         --------入口

text/index.js

// 为组件提供 install 方法,供组件对外按需引入
import Component from './src/index'
Component.install = Vue => {
	Vue.component(Component.name, Component)
}
export default Component

text/src/index.vue

<!--text.vue-->
<template>
  <div class="qk-text">
    {{text}}
  </div>
</template>

<script>
	export default {
		name: 'QkText', // 这个名字很重要,它就是未来的标签名<qk-text></qk-text>
		props: {
			text: {
				type: String,
				default: '这是一段文字'
      		}
		}
	}
</script>

<style lang="scss" scoped>
</style>

编辑器里使用组件库:

// 引入组件库
import QKUI from 'client/plugins/index'
// 注册组件库
Vue.use(QKUI)

// 使用:
<qk-text text="这是一段文字"></qk-text>

按照这个组件开发方式我们可以扩展任意多的组件,来丰富组件库

需要注意的是这里的组件最外层宽高都要求是100%

配置文件

Quark-h5编辑器左侧选择组件区域可以通过一个配置文件定义可选组件 新建一个ele-config.js配置文件:

export default [
	{
		title: '基础组件',
		components: [
			{
				elName: 'qk-text', // 组件名,与组件库名称一致
				title: '文字',
				icon: 'iconfont iconwenben',
				// 给每个组件配置默认显示样式
				defaultStyle: {
					height: 40
				}
			}
		]
	},
	{
		title: '表单组件',
		components: []
	},
	{
		title: '功能组件',
		components: []
	},
	{
		title: '业务组件',
		components: []
	}
]

公共方法中提供一个function 通过组件名和默认样式获取元素组件JSON,getElementConfigJson(elName, defaultStyle)方法

服务端具体接口实现就不详细介绍了,就是对页面的增删改查,和用户的登录注册难度不大

本地开发

环境准备:mongodb (配置文件在/server/config/index.js) ⭐⭐⭐⭐⭐(重要)

启动前端

npm run dev-client

启动服务端

npm run dev-server

注意: 如果没有生成过引擎模板js文件的,需要先编辑引擎模板,否则预览页面加载页面引擎.js 404报错

编译engine.js模板引擎
npm run lib:h5-swiper

本地部署

环境准备:mongodb (配置文件在/server/config/index.js) ⭐⭐⭐⭐⭐(重要)

需要全局安装pm2

npm install pm2 -g

启动命令

npm run start

启动完访问http://localhost:4000 就可以看到工程页面了

交流群(948547409)

License

Apache License 2.0

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简介

基于vue2 + koa2的 H5制作工具。让不会写代码的人也能轻松快速上手制作H5页面。类似易企秀、百度H5等H5制作、建站工具 展开 收起
JavaScript 等 5 种语言
Apache-2.0
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