编辑 | blame | 历史 | 原始文档

通知:最新的低代码大屏系统GoView已开源,详见:https://gitee.com/MTrun/go-view

go-view

长期赞助商

一、项目描述

  • 一个基于 Vue、Datav、Echart 框架的 " 数据大屏项目 ",通过 Vue 组件实现数据动态刷新渲染,内部图表可实现自由替换。部分图表使用 DataV 自带组件,可进行更改,详情请点击下方 DataV 文档。

  • Vue3 版本请点击这里查看,使用 Hooks+TypeScript 实现,全新内容等你探索!

  • React 版本请点击这里查看,全新界面超级好看!!!
  • 项目需要全屏展示(按 F11)。
  • 项目部分区域使用了全局注册方式,增加了打包体积,在实际运用中请使用 按需引入
  • 拉取项目之后,建议按照自己的功能区域重命名文件,现以简单的位置进行区分。
  • 项目环境:Vue-cli-3.0、DataV-2.7.3、Echarts-4.6.0(如果5.x版本有问题,请切换到4.x版本)、Webpack-4.0、Npm-6.13、Node-v12.16。
  • 请拉取 master 分支的代码,其余分支是开发分支。
  • 需要其它地图数据的,请查看我的其它项目(有一个地图合集)

友情链接:

  1. Vue 官方文档
  2. DataV 官方文档
  3. echarts 实例echarts API 文档

项目展示
项目展示

二、主要文件介绍

文件 作用/功能
main.js 主目录文件,引入 Echart/DataV 等文件
utils 工具函数与 mixins 函数等
views/ index.vue 项目主结构
views/其余文件 界面各个区域组件(按照位置来命名)
assets 静态资源目录,放置 logo 与背景图片
assets / style.scss 通用 CSS 文件,全局项目快捷样式调节
assets / index.scss Index 界面的 CSS 文件
components/echart 所有 echart 图表(按照位置来命名)
common/... 全局封装的 ECharts 和 flexible 插件代码(适配屏幕尺寸,可定制化修改)

三、使用介绍

启动项目

需要提前安装好 nodejsyarn,下载项目后在项目主目录下运行 yarn 拉取依赖包。安装完依赖包之后然后使用 vue-cli 或者直接使用命令npm run serve,就可以启动项目,启动项目后需要手动全屏(按 F11)。如果编译项目的时候提示没有 DataV 框架的依赖,输入 npm install @jiaminghi/data-view 或者 yarn add @jiaminghi/data-view 进行手动安装。

封装组件渲染图表

所有的 ECharts 图表都是基于 common/echart/index.vue 封装组件创建的,已经对数据和屏幕改动进行了监听,能够动态渲染图表数据和大小。在监听窗口小大的模块,使用了防抖函数来控制更新频率,节约浏览器性能。

项目配置了默认的 ECharts 图表样式,文件地址:common/echart/theme.json

封装的渲染图表组件支持传入以下参数,可根据业务需求自行添加/删除。

参数名称 类型 作用/功能
id String 唯一 id,渲染图表的节点(非必填,使用了 $el)
className String class样式名称(非必填)
options Object ECharts 配置(必填)
height String 图表高度(建议填)
width String 图表宽度(建议填)

动态渲染图表

动态渲染图表案例为 components 目录下各个图表组件,index 文件负责数据获取和处理,chart 文件负责监听和数据渲染。

chart 文件的主要逻辑为:

<template>
  <div>
    <Echart :options="options" id="id" height="height" width="width" ></Echart>
  </div>
</template>

<script>
  // 引入封装组件
import Echart from '@/common/echart'
export default {
  // 定义配置数据
  data(){ return { options: {}}},
  // 声明组件
  components: { Echart},
  // 接收数据
  props: {
    cdata: {
      type: Object,
      default: () => ({})
    },
  },
  // 进行监听,也可以使用 computed 计算属性实现此功能
  watch: {
    cdata: {
      handler (newData) {
        this.options ={
          // 这里编写 ECharts 配置
        }
      },
      // 立即监听
      immediate: true,
      // 深度监听
      deep: true
    }
  }
};
</script>

复用图表组件

复用图表组件案例为中间部分的 任务通过率与任务达标率 模块,两个图表类似,区别在于颜色和主要渲染数据。只需要传入对应的唯一 id 和样式,然后在复用的组件 components/echart/center/centerChartRate 里进行接收并在对应位置赋值即可。

如:在调用处 views/center.vue 里去定义好数据并传入组件

//组件调用
<span>今日任务通过率</span>
<centerChart :id="rate[0].id" :tips="rate[0].tips" :colorObj="rate[0].colorData" />

<span>今日任务达标率</span>
<centerChart :id="rate[1].id" :tips="rate[1].tips" :colorObj="rate[1].colorData" />

...
import centerChart from "@/components/echart/center/centerChartRate";

data() {
  return {
    rate: [
      {
        id: "centerRate1",
        tips: 60,
        ...
      },
      {
        id: "centerRate2",
        tips: 40,
        colorData: {
          ...
        }
      }
    ]
  }
}

更换边框

边框是使用了 DataV 自带的组件,只需要去 views 目录下去寻找对应的位置去查找并替换就可以,具体的种类请去 DavaV 官网查看
如:

<dv-border-box-1></dv-border-box-1>
<dv-border-box-2></dv-border-box-2>
<dv-border-box-3></dv-border-box-3>

更换图表

直接进入 components/echart 下的文件修改成你要的 echarts 模样,可以去echarts 官方社区里面查看案例。

Mixins 解决自适应适配功能

使用 mixins 注入解决了界面大小变动图表自适应适配的功能,函数在 utils/resizeMixins.js 中,应用在 common/echart/index.vue 的封装渲染组件,主要是对 this.chart 进行了功能注入。

屏幕适配

1.5 版本项目放弃了 flexible 插件方案,将 rem 改回px,使用更流程通用的 css3:scale 缩放方案,通过 ref 指向 views/index,屏幕改变时缩放内容。项目的基准尺寸是 1920px*1080px,所以支持同比例屏幕 100% 填充,如果非同比例则会自动计算比例居中填充,不足的部分则留白。实现代码在 src/utils/userDraw ,如果有其它的适配方案,欢迎交流。

请求数据

现在的项目未使用前后端数据请求,建议使用 axios 进行数据请求,在 main.js 位置进行全局配置。

  • axios 的 main.js 配置参考范例(因人而异)
import axios from 'axios';

//把方法放到vue的原型上,这样就可以全局使用了
Vue.prototype.$http = axios.create({
  //设置20秒超时时间
  timeout: 20000,
  baseURL: 'http://172.0.0.1:80080', //这里写后端地址
});

四、更新情况

  1. 增加了 Echart 组件复用的功能,如:中间任务达标率的两个百分比图使用的是同一个组件。
  2. 修复了头部右侧的图案条不对称的问题。
  3. 使用 Mixins 注入图表响应式代码(scale方案之后无需使用)。
  4. vue-awesome 改成按需引入的方式。
  5. 封装渲染函数,抽离了数据使逻辑更加清晰。
  6. 新增地图组件,并添加自动轮播功能
  7. 将适配方案从 rem 改成 scale

五、反馈

QQ群二维码:

输入图片说明

六、相关大屏案例

(以下案例基于此项目二次开发):

  1. (支持地图下钻)https://gitee.com/memeda520/IofTV-Screen
    输入图片说明
  2. (重写结构,支持响应式布局)https://gitee.com/BigCatHome/koi-screen
    输入图片说明

    七、其余

这个项目是个人的作品,难免会有问题和 BUG,如果有问题请进行评论,我也会尽力去更新,自己也在前端学习的路上,欢迎交流,非常感谢!

编辑 | blame | 历史 | 原始文档
                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the
      editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions
      to that Work or Derivative Works thereof, that is intentionally
      submitted to Licensor for inclusion in the Work by the copyright owner
      or by an individual or Legal Entity authorized to submit on behalf of
      the copyright owner. For the purposes of this definition, "submitted"
      means any form of electronic, verbal, or written communication sent
      to the Licensor or its representatives, including but not limited to
      communication on electronic mailing lists, source code control systems,
      and issue tracking systems that are managed by, or on behalf of, the
      Licensor for the purpose of discussing and improving the Work, but
      excluding communication that is conspicuously marked or otherwise
      designated in writing by the copyright owner as "Not a Contribution."

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the
      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
      cross-claim or counterclaim in a lawsuit) alleging that the Work
      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,
          excluding those notices that do not pertain to any part of
          the Derivative Works; and

      (d) If the Work includes a "NOTICE" text file as part of its
          distribution, then any Derivative Works that You distribute must
          include a readable copy of the attribution notices contained
          within such NOTICE file, excluding those notices that do not
          pertain to any part of the Derivative Works, in at least one
          of the following places: within a NOTICE text file distributed
          as part of the Derivative Works; within the Source form or
          documentation, if provided along with the Derivative Works; or,
          within a display generated by the Derivative Works, if and
          wherever such third-party notices normally appear. The contents
          of the NOTICE file are for informational purposes only and
          do not modify the License. You may add Your own attribution
          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions
      for use, reproduction, or distribution of Your modifications, or
      for any such Derivative Works as a whole, provided Your use,
      reproduction, and distribution of the Work otherwise complies with
      the conditions stated in this License.

   5. Submission of Contributions. Unless You explicitly state otherwise,
      any Contribution intentionally submitted for inclusion in the Work
      by You to the Licensor shall be under the terms and conditions of
      this License, without any additional terms or conditions.
      Notwithstanding the above, nothing herein shall supersede or modify
      the terms of any separate license agreement you may have executed
      with Licensor regarding such Contributions.

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
      implied, including, without limitation, any warranties or conditions
      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
      PARTICULAR PURPOSE. You are solely responsible for determining the
      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be
      liable to You for damages, including any direct, indirect, special,
      incidental, or consequential damages of any character arising as a
      result of this License or out of the use or inability to use the
      Work (including but not limited to damages for loss of goodwill,
      work stoppage, computer failure or malfunction, or any and all
      other commercial damages or losses), even if such Contributor
      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,
      defend, and hold each Contributor harmless for any liability
      incurred by, or claims asserted against, such Contributor by reason
      of your accepting any such warranty or additional liability.

   END OF TERMS AND CONDITIONS

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
      boilerplate notice, with the fields enclosed by brackets "[]"
      replaced with your own identifying information. (Don't include
      the brackets!)  The text should be enclosed in the appropriate
      comment syntax for the file format. We also recommend that a
      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
README 9 KB