浏览器预览excel文件（word怎么预览pdf）

1、mammoth.browserjs（word.docx）

word怎么预览pdf

var url = url;var xhr = new XMLHttpRequest ();xhr. open("get ", url,true);xhr.responseType = "blob";//添加请求头//获取cookie里的 tokenxhr.setRequestHeader (" access-token", getCookie('access-t oken'));xhr. onload = function ( {      if (this.st atus == 200){          var blob = this.response;          //流读取          readFileInputEventAsArrayBuffer (blob);         $('#wordJS').show();      }};xhr.send();function displayResult (result) {  //读取后的blob 转换赋值为html      let html = result. value ;      let newHTML = html.replace(/ /g, ' ')      .replace('<h1>', '<h1>')      .replace( /<table>/g,'<table>')      .replace(/<tr>/g, '<tr>')      .replace( /<td>/g, '<td>')      .replace(/<p>/g, '<p>');      document.getElementById("wordoutput " ) .innerHTML = newHTML;}function readFileInputEventAsArrayBuffer (excelBlob) {    var reader = new FileReader(:    reader. onload = function (loadEvent) {    var arrayBuffer = loadEvent. target. result;     try{      //进行读取        mamoth. convertToHtml({ arrayBuffer: arrayBuffer } ).then (displayResult).done();    }catch(err) {        console.log('格式错误！');    }    reader. readAsArr ayBuffer (excelB1ob) ;}

2、xlsx.full.min.js（excel.xlsx）

//url文件地址var url = url;var xhr = new XMLHttpRequest();xhr.open("get", url, true);xhr.responseType = "blob";//添加请求头xhr.setRequestHeader("access-token", getCookie('access-token'));xhr.onload = function () {    if (this.status == 200) {        var blob = this.response;        readFileInputEventAsArrayBuffer(blob);    }};xhr.send();function readFileInputEventAsArrayBuffer(file){    const reader = new FileReader();    reader.readAsBinaryString(file);    reader.onload = (e) => {      const data = e.target.result;      const zzexcel = window.XLSX.read(data, { type: 'binary'});      const result = [];      for (let i = 0; i < zzexcel.SheetNames.length; i++) {        const newData = window.XLSX.utils.sheet_to_json(zzexcel.Sheets[zzexcel.SheetNames[i]]);        result.push(...newData)      }        //将数据存起来,将excel读取为数组        dataExcel = result;    }}

3、pdfObject.js（embed）

!function(root, factory) {    "function" == typeof define && define.amd ? define([], factory) : "object" == typeof module && module.exports ? module.exports = factory() : root.PDFObject = factory()}(this, function() {    "use strict";    if ("undefined" == typeof window || void 0 === window.navigator || void 0 === window.navigator.userAgent || void 0 === window.navigator.mimeTypes)        return !1;    let nav = window.navigator      , ua = window.navigator.userAgent      , isIE = "ActiveXObject"in window      , isModernBrowser = void 0 !== window.Promise      , supportsPdfMimeType = void 0 !== nav.mimeTypes["application/pdf"]      , isMobileDevice = void 0 !== nav.platform && "MacIntel" === nav.platform && void 0 !== nav.maxTouchPoints && nav.maxTouchPoints > 1 || /Mobi|Tablet|Android|iPad|iPhone/.test(ua)      , isSafariDesktop = !isMobileDevice && void 0 !== nav.vendor && /Apple/.test(nav.vendor) && /Safari/.test(ua)      , isFirefoxWithPDFJS = !!(!isMobileDevice && /irefox/.test(ua) && ua.split("rv:").length > 1) && parseInt(ua.split("rv:")[1].split(".")[0], 10) > 18      , createAXO = function(type) {        var ax;        try {            ax = new ActiveXObject(type)        } catch (e) {            ax = null        }        return ax    }      , supportsPDFs = !isMobileDevice && (isModernBrowser || isFirefoxWithPDFJS || supportsPdfMimeType || isIE && !(!createAXO("AcroPDF.PDF") && !createAXO("PDF.PdfCtrl")))      , embedError = function(msg, suppressConsole) {        return suppressConsole || console.log("[PDFObject] " + msg),        !1    }      , emptyNodeContents = function(node) {        for (; node.firstChild; )            node.removeChild(node.firstChild)    }      , generatePDFJSMarkup = function(targetNode, url, pdfOpenFragment, PDFJS_URL, id, title, omitInlineStyles) {        emptyNodeContents(targetNode);        let fullURL = PDFJS_URL + "?file=" + encodeURIComponent(url) + pdfOpenFragment          , div = document.createElement("div")          , iframe = document.createElement("iframe");        return iframe.src = fullURL,        iframe.className = "pdfobject",        iframe.type = "application/pdf",        iframe.frameborder = "0",        iframe.allow = "fullscreen",        iframe.title = title,        id && (iframe.id = id),        omitInlineStyles || (div.style.cssText = "position: absolute; top: 0; right: 0; bottom: 0; left: 0;",        iframe.style.cssText = "border: none; width: 100%; height: 100%;",        targetNode.style.position = "relative",        targetNode.style.overflow = "auto"),        div.appendChild(iframe),        targetNode.appendChild(div),        targetNode.classList.add("pdfobject-container"),        targetNode.getElementsByTagName("iframe")[0]    }      , embed = function(url, targetSelector, options) {        let selector = targetSelector || !1          , opt = options || {}          , id = "string" == typeof opt.id ? opt.id : ""          , page = opt.page || !1          , pdfOpenParams = opt.pdfOpenParams || {}          , fallbackLink = opt.fallbackLink || !0          , width = opt.width || "100%"          , height = opt.height || "100%"          , title = opt.title || "Embedded PDF"          , assumptionMode = "boolean" != typeof opt.assumptionMode || opt.assumptionMode          , forcePDFJS = "boolean" == typeof opt.forcePDFJS && opt.forcePDFJS          , supportRedirect = "boolean" == typeof opt.supportRedirect && opt.supportRedirect          , omitInlineStyles = "boolean" == typeof opt.omitInlineStyles && opt.omitInlineStyles          , suppressConsole = "boolean" == typeof opt.suppressConsole && opt.suppressConsole          , forceIframe = "boolean" == typeof opt.forceIframe && opt.forceIframe          , PDFJS_URL = opt.PDFJS_URL || !1          , targetNode = function(targetSelector) {            let targetNode = document.body;            return "string" == typeof targetSelector ? targetNode = document.querySelector(targetSelector) : void 0 !== window.jQuery && targetSelector instanceof jQuery && targetSelector.length ? targetNode = targetSelector.get(0) : void 0 !== targetSelector.nodeType && 1 === targetSelector.nodeType && (targetNode = targetSelector),            targetNode        }(selector)          , fallbackHTML = ""          , pdfOpenFragment = "";        if ("string" != typeof url)            return embedError("URL is not valid", suppressConsole);        if (!targetNode)            return embedError("Target element cannot be determined", suppressConsole);        if (page && (pdfOpenParams.page = page),        pdfOpenFragment = function(pdfParams) {            let prop, string = "";            if (pdfParams) {                for (prop in pdfParams)                    pdfParams.hasOwnProperty(prop) && (string += encodeURIComponent(prop) + "=" + encodeURIComponent(pdfParams[prop]) + "&");                string && (string = (string = "#" + string).slice(0, string.length - 1))            }            return string        }(pdfOpenParams),        forcePDFJS && PDFJS_URL)            return generatePDFJSMarkup(targetNode, url, pdfOpenFragment, PDFJS_URL, id, title, omitInlineStyles);        if (supportsPDFs || assumptionMode && !isMobileDevice) {            return function(embedType, targetNode, targetSelector, url, pdfOpenFragment, width, height, id, title, omitInlineStyles) {                emptyNodeContents(targetNode);                let embed = document.createElement(embedType);                if (embed.src = url + pdfOpenFragment,                embed.className = "pdfobject",                embed.type = "application/pdf",                embed.title = title,                id && (embed.id = id),                "iframe" === embedType && (embed.allow = "fullscreen"),                !omitInlineStyles) {                    let style = "embed" === embedType ? "overflow: auto;" : "border: none;";                    targetSelector && targetSelector !== document.body ? style += "width: " + width + "; height: " + height + ";" : style += "position: absolute; top: 0; right: 0; bottom: 0; left: 0; width: 100%; height: 100%;",                    embed.style.cssText = style                }                return targetNode.classList.add("pdfobject-container"),                targetNode.appendChild(embed),                targetNode.getElementsByTagName(embedType)[0]            }(forceIframe || supportRedirect || isSafariDesktop ? "iframe" : "embed", targetNode, targetSelector, url, pdfOpenFragment, width, height, id, title, omitInlineStyles)        }        return PDFJS_URL ? generatePDFJSMarkup(targetNode, url, pdfOpenFragment, PDFJS_URL, id, title, omitInlineStyles) : (fallbackLink && (fallbackHTML = "string" == typeof fallbackLink ? fallbackLink : "<p>This browser does not support inline PDFs. Please download the PDF to view it: <a href='[url]'>Download PDF</a></p>",        targetNode.innerHTML = fallbackHTML.replace(/[url]/g, url)),        embedError("This browser does not support embedded PDFs", suppressConsole))    };    return {        embed: function(a, b, c) {            return embed(a, b, c)        },        pdfobjectversion: "2.2.7",        supportsPDFs: supportsPDFs    }}  //url为文件路径，id为dom PDFObject.embed(url,  id);

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