vue 前端预览 Excel 表

一、安装依赖包官网

npm i luckyexcel
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template 模板

<div id="luckysheet" style='width:100vw;height:100vh'>div>
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二、加载

异步加载及

import LuckyExcel from 'luckyexcel';

/* 下列代码加载 cdn 文件，你也可以在 public 文件夹在 html 中引入 */
// 封装加载 src 文件方法
function asynLoad(src, isCss = false) {
  return new Promise(res => {
    let el;
    if (isCss) {
      el = document.createElement('link');
      el.rel = 'stylesheet';
      el.href = src;
    } else {
      el = document.createElement('script');
      el.src = src;
    }
    document.documentElement.appendChild(el);
    el.onload = el.onreadystatechange = function() {
      if (
        !this.readyState ||
        this.readyState == 'loaded' ||
        this.readyState == 'complete'
      ) {
        res(true);
      }
      this.onload = this.onreadystatechange = null;
    };
  });
}

/* Vue 中加载 cdn 文件 */
export default{
  created() {
    this.loadPlugins();
  },
  methods: {
    loadPlugins() {
      const baseURL = '//cdn.jsdelivr.net/npm/luckysheet@latest/dist';
      this.loading = true;
      this.tip = '正在加载依赖插件，请耐心等待...';
      Promise.all([
        asynLoad(`${baseURL}/plugins/css/pluginsCss.css`, true),
        asynLoad(`${baseURL}/plugins/plugins.css`, true),
        asynLoad(`${baseURL}/css/luckysheet.css`, true),
        asynLoad(`${baseURL}/assets/iconfont/iconfont.css`, true),
        asynLoad(`${baseURL}/plugins/js/plugin.js`),
        asynLoad(`${baseURL}/luckysheet.umd.js`)
      ])
        .then(() => {
          luckysheet = (window as any).luckysheet;
          this.getOriginFile(); // 获取远端文件
        })
        .catch(res => {
          this.loading = false;
          this.errStatus = 1;
          this.errorTitle = '插件加载失败，请刷新后重试！';
        })
    }
  },
}


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cdn 加载 index.html 文件

<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet/dist/plugins/css/pluginsCss.css' />
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet/dist/plugins/plugins.css' />
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet/dist/css/luckysheet.css' />
<link rel='stylesheet' href='https://cdn.jsdelivr.net/npm/luckysheet/dist/assets/iconfont/iconfont.css' />
<script src="https://cdn.jsdelivr.net/npm/luckysheet/dist/plugins/js/plugin.js"></script>
<script src="https://cdn.jsdelivr.net/npm/luckysheet/dist/luckysheet.umd.js"></script>

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三、页面使用

/* Vue 中加载 cdn 文件 */
export default{
  methods: {
   // 获取远程文件
	getOriginFile() {
	  this.tip = '正在下载文件...';
	  this.loading = true
	  axios({
	    url: this.fileURL,
	    responseType: 'blob'
	  }).then(({ data }) => {
	    const blob = new Blob([data]);
	    const file = new File([blob], this.fileName);
	    this.init(file); // 开始渲染
	  }).catch(e => {
	    this.errorTitle = '文件解析失败，请下载后使用 Excel 打开或点击重试！'
	    this.errStatus = 2;
	  }).finally(() => {
	    this.loading = false;
	  })
	}
	
	// 渲染方法，接受文件对象，如果是本地文件直接传入文件即可
	init(file: File) {
	  luckysheet.destroy(); // 先销毁当前容器
	  LuckyExcel.transformExcelToLucky(file, exportJson => {
	    if (exportJson.sheets === null || !exportJson.sheets.length) {
	      this.$message.error('无法读取excel文件的内容，当前不支持xls文件！');
	      return;
	    }
	    luckysheet.create({
	      container: 'luckysheet',
	      showinfobar: false,
	      lang: 'zh',
	      data: exportJson.sheets,
	      title: exportJson.info.name,
	      userInfo: exportJson.info.name.creator
	    });
	  });
	}
  },
}
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