【React】前端React 代码中预览展示excel文件
封装了ExcelView来展示excel文件，支持显示loading
1.安装依赖
npm i @js-preview/excel
- 源码
import React, { useEffect, useRef, useState } from 'react'
import jsPreviewExcel, { JsExcelPreview } from '@js-preview/excel'
import '@js-preview/excel/lib/index.css'
import { Spin } from 'antd'export interface Props {fileInfo: string
}const ExcelView = (props: Props) => {const { fileInfo } = propsconst excelContainerRef = useRef<HTMLDivElement | null>(null)const excelPreviewerRef = useRef<JsExcelPreview | null>(null) // 保存 myExcelPreviewer 的引用const [isLoading, setIsLoading] = useState<boolean>(true)useEffect(() => {const containerElement = excelContainerRef.currentif (containerElement && !excelPreviewerRef.current) {// 初始化 myExcelPreviewer，并保存引用const myExcelPreviewer = jsPreviewExcel.init(containerElement)excelPreviewerRef.current = myExcelPreviewersetIsLoading(true) // 开始加载时设置 loading 状态myExcelPreviewer.preview(fileInfo).then(() => {setIsLoading(false) // 预览完成后取消 loading 状态console.info('预览完成')}).catch((e) => {setIsLoading(false) // 预览失败后取消 loading 状态console.info('预览失败', e)})}}, [fileInfo])return (<div className="relative h-full"><div ref={excelContainerRef} className="h-full" />{isLoading && (<div className="absolute inset-0 flex items-center justify-center bg-white bg-opacity-75"><Spin size="large" /></div>)}</div>)
}export default ExcelView