用js将HTML文本导出生成word文档

在项目开发中中，遇到将HTML导出生成word文档，刚开始在网上找了很多资料，基本都是jQuery中的插件jquery.wordexport.js，刚开始是不想用这个的，这个要引用另一个插件FileSaver.js;但是没有找到更好的方法，所以在这里记录下js将HTML导出生成word文档的方法；如果有其他方法的可以提供下链接；学习下
jquery.wordexport.js插件的代码，了解到了通过该插件可以导出文本和图片，而图片首先通过canvas的形式
绘制，文本则需要再依赖FileSaver.js插件，FileSaver.js插件则主要通过H5的文件操作新特性new Blob()和new FileReader()
来实现文本的导出。
在这里给出jquery.wordexport.js源码

if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") {(function ($) {$.fn.wordExport = function (fileName) {fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export";var statics = {mhtml: {top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n<html>\n_html_</html>",head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n",body: "<body>_body_</body>"}};var options = {maxWidth: 624};// Clone selected element before manipulating itvar markup = $(this).clone();// Remove hidden elements from the outputmarkup.each(function () {var self = $(this);if (self.is(':hidden'))self.remove();});// Embed all images using Data URLsvar images = Array();var img = markup.find('img');for (var i = 0; i < img.length; i++) {// Calculate dimensions of output imagevar w = Math.min(img[i].width, options.maxWidth);var h = img[i].height * (w / img[i].width);// Create canvas for converting image to data URLvar canvas = document.createElement("CANVAS");canvas.width = w;canvas.height = h;// Draw image to canvasvar context = canvas.getContext('2d');context.drawImage(img[i], 0, 0, w, h);// Get data URL encoding of imagevar uri = canvas.toDataURL("image/png/jpg");$(img[i]).attr("src", img[i].src);img[i].width = w;img[i].height = h;// Save encoded image to arrayimages[i] = {type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")),encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")),location: $(img[i]).attr("src"),data: uri.substring(uri.indexOf(",") + 1)};}// Prepare bottom of mhtml file with image datavar mhtmlBottom = "\n";for (var i = 0; i < images.length; i++) {mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n";mhtmlBottom += "Content-Location: " + images[i].location + "\n";mhtmlBottom += "Content-Type: " + images[i].type + "\n";mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + "\n\n";mhtmlBottom += images[i].data + "\n\n";}mhtmlBottom += "--NEXT.ITEM-BOUNDARY--";//TODO: load css from included stylesheet//var styles=' /* Font Definitions */@font-face{font-family:宋体;panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-alt:SimSun;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;}  @font-face{font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;mso-font-charset:1;mso-generic-font-family:roman;mso-font-format:other;mso-font-pitch:variable;mso-font-signature:0 0 0 0 0 0;}  @font-face{font-family:"\@宋体";panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;}/* Style Definitions */p.MsoNormal, li.MsoNormal, div.MsoNormal{mso-style-unhide:no;mso-style-qformat:yes;mso-style-parent:"";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:14.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoHeader, li.MsoHeader, div.MsoHeader{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页眉 Char";margin:0cm;margin-bottom:.0001pt;text-align:center;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoFooter, li.MsoFooter, div.MsoFooter{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页脚 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoAcetate, li.MsoAcetate, div.MsoAcetate{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"批注框文本 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.Char{mso-style-name:"页眉 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页眉;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char0{mso-style-name:"页脚 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页脚;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char1{mso-style-name:"批注框文本 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:批注框文本;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}p.msochpdefault, li.msochpdefault, div.msochpdefault{mso-style-name:msochpdefault;mso-style-unhide:no;mso-margin-top-alt:auto;margin-right:0cm;mso-margin-bottom-alt:auto;margin-left:0cm;mso-pagination:widow-orphan;font-size:10.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.msonormal0{mso-style-name:msonormal;mso-style-unhide:no;}.MsoChpDefault{mso-style-type:export-only;mso-default-props:yes;font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt;}/* Page Definitions */  @page WordSection1{size:595.3pt 841.9pt;margin:72.0pt 90.0pt 72.0pt 90.0pt;mso-header-margin:42.55pt;mso-footer-margin:49.6pt;mso-paper-source:0;}div.WordSection1{page:WordSection1;}';var styles = "";// Aggregate parts of the file togethervar fileContent = statics.mhtml.top.replace("_html_", statics.mhtml.head.replace("_styles_", styles) + statics.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom;// Create a Blob with the file contentsvar blob = new Blob([fileContent], {type: "application/msword;charset=utf-8"});saveAs(blob, fileName + ".doc");};})(jQuery);
} else {if (typeof jQuery === "undefined") {console.error("jQuery Word Export: missing dependency (jQuery)");}if (typeof saveAs === "undefined") {console.error("jQuery Word Export: missing dependency (FileSaver.js)");}
}

和FileSaver.js源码

/* FileSaver.js* A saveAs() FileSaver implementation.* 1.3.2* 2016-06-16 18:25:19** By Eli Grey, http://eligrey.com* License: MIT*   See https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md*//*global self */
/*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true *//*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */var saveAs = saveAs || (function (view) {"use strict";// IE <10 is explicitly unsupportedif (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {return;}vardoc = view.document// only get URL when necessary in case Blob.js hasn't overridden it yet, get_URL = function () {return view.URL || view.webkitURL || view;}, save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a"), can_use_save_link = "download" in save_link, click = function (node) {var event = new MouseEvent("click");node.dispatchEvent(event);}, is_safari = /constructor/i.test(view.HTMLElement), is_chrome_ios = /CriOS\/[\d]+/.test(navigator.userAgent), throw_outside = function (ex) {(view.setImmediate || view.setTimeout)(function () {throw ex;}, 0);}, force_saveable_type = "application/octet-stream"// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to, arbitrary_revoke_timeout = 1000 * 40 // in ms, revoke = function (file) {var revoker = function () {if (typeof file === "string") { // file is an object URLget_URL().revokeObjectURL(file);} else { // file is a Filefile.remove();}};setTimeout(revoker, arbitrary_revoke_timeout);}, dispatch = function (filesaver, event_types, event) {event_types = [].concat(event_types);var i = event_types.length;while (i--) {var listener = filesaver["on" + event_types[i]];if (typeof listener === "function") {try {listener.call(filesaver, event || filesaver);} catch (ex) {throw_outside(ex);}}}}, auto_bom = function (blob) {// prepend BOM for UTF-8 XML and text/* types (including HTML)// note: your browser will automatically convert UTF-16 U+FEFF to EF BB BFif (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type });}return blob;}, FileSaver = function (blob, name, no_auto_bom) {if (!no_auto_bom) {blob = auto_bom(blob);}// First try a.download, then web filesystem, then object URLsvarfilesaver = this, type = blob.type, force = type === force_saveable_type, object_url, dispatch_all = function () {dispatch(filesaver, "writestart progress write writeend".split(" "));}// on any filesys errors revert to saving with object URLs, fs_error = function () {if ((is_chrome_ios || (force && is_safari)) && view.FileReader) {// Safari doesn't allow downloading of blob urlsvar reader = new FileReader();reader.onloadend = function () {var url = is_chrome_ios ? reader.result : reader.result.replace(/^data:[^;]*;/, 'data:attachment/file;');var popup = view.open(url, '_blank');if (!popup) view.location.href = url;url = undefined; // release reference before dispatchingfilesaver.readyState = filesaver.DONE;dispatch_all();};reader.readAsDataURL(blob);filesaver.readyState = filesaver.INIT;return;}// don't create more object URLs than neededif (!object_url) {object_url = get_URL().createObjectURL(blob);}if (force) {view.location.href = object_url;} else {var opened = view.open(object_url, "_blank");if (!opened) {// Apple does not allow window.open, see https://developer.apple.com/library/safari/documentation/Tools/Conceptual/SafariExtensionGuide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.htmlview.location.href = object_url;}}filesaver.readyState = filesaver.DONE;dispatch_all();revoke(object_url);};filesaver.readyState = filesaver.INIT;if (can_use_save_link) {object_url = get_URL().createObjectURL(blob);setTimeout(function () {save_link.href = object_url;save_link.download = name;click(save_link);dispatch_all();revoke(object_url);filesaver.readyState = filesaver.DONE;});return;}fs_error();}, FS_proto = FileSaver.prototype, saveAs = function (blob, name, no_auto_bom) {return new FileSaver(blob, name || blob.name || "download", no_auto_bom);};// IE 10+ (native saveAs)if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) {return function (blob, name, no_auto_bom) {name = name || blob.name || "download";if (!no_auto_bom) {blob = auto_bom(blob);}return navigator.msSaveOrOpenBlob(blob, name);};}FS_proto.abort = function () { };FS_proto.readyState = FS_proto.INIT = 0;FS_proto.WRITING = 1;FS_proto.DONE = 2;FS_proto.error =FS_proto.onwritestart =FS_proto.onprogress =FS_proto.onwrite =FS_proto.onabort =FS_proto.onerror =FS_proto.onwriteend =null;return saveAs;
}(typeof self !== "undefined" && self|| typeof window !== "undefined" && window|| this.content
));
// `self` is undefined in Firefox for Android content script context
// while `this` is nsIContentFrameMessageManager
// with an attribute `content` that corresponds to the windowif (typeof module !== "undefined" && module.exports) {module.exports.saveAs = saveAs;
} else if ((typeof define !== "undefined" && define !== null) && (define.amd !== null)) {define([], function () {return saveAs;});
}

HTML页面:

<!DOCTYPE html>
<html><head lang="en"><meta charset="UTF-8"><title>html导出生成word文档</title>
</head><body><div class="word"><h1>我们的梦想来自内心深处的孤独</h1>><p align="center"style="font-size:20pt;font-weight:bold;">JS导出Word文档</p><div>我们来自同一个世界</div></div><input type="button" value="导出word"><script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script><script type="text/javascript" src="FileSaver.js"></script><script type="text/javascript" src="jquery.wordexport.js"></script><script>$(function () {$("input[type='button']").click(function (event) {$(".word").wordExport('word文档');});})</script>
</body>
</html>

导出的html代码样式需要内联样式

注意!!! 如果遇到 报错 $(…).wordExport is not a function

将

$(function () {//jquery  code})

改为

jQuery(document).ready(function($){//jquery  code});

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