前言：
项目开发中遇到了需要将HTML页面的内容导出为一个word文档，所以有了这边随笔。
当然，项目开发又时间有点紧迫，第一时间想到的是用插件，所以百度了下。下面就介绍两个导出word文档的方法。
法一：通过jquery.wordexport.js导出word
备注：兼容IE9以上
大概浏览了下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。
插件源码：
FileSaver.js
1 /* FileSaver.js 2 * A saveAs() FileSaver implementation. 3 * 1.3.2 4 * 2016-06-16 18:25:19 5 * 6 * By Eli Grey, http://eligrey.com 7 * License: MIT 8 * See https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md 9 */ 10 11 /*global self */ 12 /*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */ 13 14 /*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */ 15 16 var saveAs = saveAs || (function(view) { 17 "use strict"; 18 // IE <10 is explicitly unsupported 19 if (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]./.test(navigator.userAgent)) { 20 return; 21 } 22 var 23 doc = view.document 24 // only get URL when necessary in case Blob.js hasn't overridden it yet 25 , get_URL = function() { 26 return view.URL || view.webkitURL || view; 27 } 28 , save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a") 29 , can_use_save_link = "download" in save_link 30 , click = function(node) { 31 var event = new MouseEvent("click"); 32 node.dispatchEvent(event); 33 } 34 , is_safari = /constructor/i.test(view.HTMLElement) 35 , is_chrome_ios =/CriOS/[d]+/.test(navigator.userAgent) 36 , throw_outside = function(ex) { 37 (view.setImmediate || view.setTimeout)(function() { 38 throw ex; 39 }, 0); 40 } 41 , force_saveable_type = "application/octet-stream" 42 // the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to 43 , arbitrary_revoke_timeout = 1000 * 40 // in ms 44 , revoke = function(file) { 45 var revoker = function() { 46 if (typeof file === "string") { // file is an object URL 47 get_URL().revokeObjectURL(file); 48 } else { // file is a File 49 file.remove(); 50 } 51 }; 52 setTimeout(revoker, arbitrary_revoke_timeout); 53 } 54 , dispatch = function(filesaver, event_types, event) { 55 event_types = [].concat(event_types); 56 var i = event_types.length; 57 while (i--) { 58 var listener = filesaver["on" + event_types[i]]; 59 if (typeof listener === "function") { 60 try { 61 listener.call(filesaver, event || filesaver); 62 } catch (ex) { 63 throw_outside(ex); 64 } 65 } 66 } 67 } 68 , auto_bom = function(blob) { 69 // prepend BOM for UTF-8 XML and text/* types (including HTML) 70 // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF 71 if (/^s*(?:text/S*|application/xml|S*/S*+xml)s*;.*charsets*=s*utf-8/i.test(blob.type)) { 72 return new Blob([String.fromCharCode(0xFEFF), blob], {type: blob.type}); 73 } 74 return blob; 75 } 76 , FileSaver = function(blob, name, no_auto_bom) { 77 if (!no_auto_bom) { 78 blob = auto_bom(blob); 79 } 80 // First try a.download, then web filesystem, then object URLs 81 var 82 filesaver = this 83 , type = blob.type 84 , force = type === force_saveable_type 85 , object_url 86 , dispatch_all = function() { 87 dispatch(filesaver, "writestart progress write writeend".split(" ")); 88 } 89 // on any filesys errors revert to saving with object URLs 90 , fs_error = function() { 91 if ((is_chrome_ios || (force && is_safari)) && view.FileReader) { 92 // Safari doesn't allow downloading of blob urls 93 var reader = new FileReader(); 94 reader.onloadend = function() { 95 var url = is_chrome_ios ? reader.result : reader.result.replace(/^data:[^;]*;/, 'data:attachment/file;'); 96 var popup = view.open(url, '_blank'); 97 if(!popup) view.location.href = url; 98 url=undefined; // release reference before dispatching 99 filesaver.readyState = filesaver.DONE; 100 dispatch_all(); 101 }; 102 reader.readAsDataURL(blob); 103 filesaver.readyState = filesaver.INIT; 104 return; 105 } 106 // don't create more object URLs than needed 107 if (!object_url) { 108 object_url = get_URL().createObjectURL(blob); 109 } 110 if (force) { 111 view.location.href = object_url; 112 } else { 113 var opened = view.open(object_url, "_blank"); 114 if (!opened) { 115 // Apple does not allow window.open, see https://developer.apple.com/library/safari/documentation/Tools/Conceptual/SafariExtensionGuide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.html 116 view.location.href = object_url; 117 } 118 } 119 filesaver.readyState = filesaver.DONE; 120 dispatch_all(); 121 revoke(object_url); 122 } 123 ; 124 filesaver.readyState = filesaver.INIT; 125 126 if (can_use_save_link) { 127 object_url = get_URL().createObjectURL(blob); 128 setTimeout(function() { 129 save_link.href = object_url; 130 save_link.download = name; 131 click(save_link); 132 dispatch_all(); 133 revoke(object_url); 134 filesaver.readyState = filesaver.DONE; 135 }); 136 return; 137 } 138 139 fs_error(); 140 } 141 , FS_proto = FileSaver.prototype 142 , saveAs = function(blob, name, no_auto_bom) { 143 return new FileSaver(blob, name || blob.name || "download", no_auto_bom); 144 } 145 ; 146 // IE 10+ (native saveAs) 147 if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) { 148 return function(blob, name, no_auto_bom) { 149 name = name || blob.name || "download"; 150 151 if (!no_auto_bom) { 152 blob = auto_bom(blob); 153 } 154 return navigator.msSaveOrOpenBlob(blob, name); 155 }; 156 } 157 158 FS_proto.abort = function(){}; 159 FS_proto.readyState = FS_proto.INIT = 0; 160 FS_proto.WRITING = 1; 161 FS_proto.DONE = 2; 162 163 FS_proto.error = 164 FS_proto.onwritestart = 165 FS_proto.onprogress = 166 FS_proto.onwrite = 167 FS_proto.onabort = 168 FS_proto.onerror = 169 FS_proto.onwriteend = 170 null; 171 172 return saveAs; 173 }( 174 typeof self !== "undefined" && self 175 || typeof window !== "undefined" && window 176 || this.content 177 )); 178 // `self` is undefined in Firefox for Android content script context 179 // while `this` is nsIContentFrameMessageManager 180 // with an attribute `content` that corresponds to the window 181 182 if (typeof module !== "undefined" && module.exports) { 183 module.exports.saveAs = saveAs; 184 } else if ((typeof define !== "undefined" && define !== null) && (define.amd !== null)) { 185 define([], function() { 186 return saveAs; 187 }); 188 }
jquery.wordexport.js
1 if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") { 2 (function($) { 3 $.fn.wordExport = function(fileName) { 4 fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export"; 5 var static = { 6 mhtml: { 7 top: "Mime-Version: 1.0 Content-Base: " + location.href + " Content-Type: Multipart/related; boundary="NEXT.ITEM-BOUNDARY";type="text/html" --NEXT.ITEM-BOUNDARY Content-Type: text/html; charset="utf-8" Content-Location: " + location.href + " <!DOCTYPE html> <html> _html_</html>", 8 head: "<head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <style> _styles_ </style> </head> ", 9 body: "<body>_body_</body>" 10 } 11 }; 12 var options = { 13 maxWidth: 624 14 }; 15 // Clone selected element before manipulating it 16 var markup = $(this).clone(); 17 18 // Remove hidden elements from the output 19 markup.each(function() { 20 var self = $(this); 21 if (self.is(':hidden')) 22 self.remove(); 23 }); 24 25 // Embed all images using Data URLs 26 var images = Array(); 27 var img = markup.find('img'); 28 for (var i = 0; i < img.length; i++) { 29 // Calculate dimensions of output image 30 var w = Math.min(img[i].width, options.maxWidth); 31 var h = img[i].height * (w / img[i].width); 32 // Create canvas for converting image to data URL 33 var canvas = document.createElement("CANVAS"); 34 canvas.width = w; 35 canvas.height = h; 36 // Draw image to canvas 37 var context = canvas.getContext('2d'); 38 context.drawImage(img[i], 0, 0, w, h); 39 // Get data URL encoding of image 40 var uri = canvas.toDataURL("image/png/jpg"); 41 $(img[i]).attr("src", img[i].src); 42 img[i].width = w; 43 img[i].height = h; 44 // Save encoded image to array 45 images[i] = { 46 type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")), 47 encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")), 48 location: $(img[i]).attr("src"), 49 data: uri.substring(uri.indexOf(",") + 1) 50 }; 51 } 52 53 // Prepare bottom of mhtml file with image data 54 var mhtmlBottom = " "; 55 for (var i = 0; i < images.length; i++) { 56 mhtmlBottom += "--NEXT.ITEM-BOUNDARY "; 57 mhtmlBottom += "Content-Location: " + images[i].location + " "; 58 mhtmlBottom += "Content-Type: " + images[i].type + " "; 59 mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + " "; 60 mhtmlBottom += images[i].data + " "; 61 } 62 mhtmlBottom += "--NEXT.ITEM-BOUNDARY--"; 63 64 //TODO: load css from included stylesheet 65 66 //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;}'; 67 68 var styles=""; 69 70 // Aggregate parts of the file together 71 var fileContent = static.mhtml.top.replace("_html_", static.mhtml.head.replace("_styles_", styles) + static.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom; 72 73 // Create a Blob with the file contents 74 var blob = new Blob([fileContent], { 75 type: "application/msword;charset=utf-8" 76 }); 77 saveAs(blob, fileName + ".doc"); 78 }; 79 })(jQuery); 80 } else { 81 if (typeof jQuery === "undefined") { 82 console.error("jQuery Word Export: missing dependency (jQuery)"); 83 } 84 if (typeof saveAs === "undefined") { 85 console.error("jQuery Word Export: missing dependency (FileSaver.js)"); 86 } 87 }
插件调用：
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title>生成word文档</title> 6 </head> 7 <body lang=ZH-CN style='tab-interval:21.0pt'> 8 <div class="word"> 9 <p align="center" style="font-size:20pt;font-weight:bold;">JS导出Word文档</p> 10 </div> 11 <input type="button" value="导出word"> 12 <script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script> 13 <script type="text/javascript" src="js/FileSaver.js"></script> 14 <script type="text/javascript" src="js/jquery.wordexport.js"></script> 15 <script> 16 $(function(){ 17 $("input[type='button']").click(function(event) { 18 $(".word").wordExport('生成word文档'); 19 }); 20 }) 21 </script> 22 </body> 23 </html>
直接调用wordExport()接口就可以导出word文档，传的参数为导出的word文件名。
补充：
通过我们常规写的外联样式设置样式是无效的，通过个人的实践发现需要写内联样式才能生效，而单位也需要按照word的配置
单位pt设置。
而jquery.wordexport.js插件是要配置了个style样式让我们补充样式设置的：
但是个人实践了下，设置的样式却无法生效，只能通过内联设置才生效。
截图：
法二：通过百度js模板引擎生成word文档
主要是通过js模板设置对应的标签，然后XDoc.to(baidu.template())导出word，而通过百度js模板引擎的好处是也可以导出PDF文件。
完整demo：
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="UTF-8"> 5 <script type="text/javascript" src="http://www.xdocin.com/xdoc.js"></script> 6 <script type="text/javascript" src="http://www.xdocin.com/baiduTemplate.js"></script> 7 <style> 8 .head{ 9 font-size: 29px; 10 display: block; 11 } 12 .content{ 13 display: block; 14 } 15 </style> 16 </head> 17 <body> 18 <input type="button" onclick="gen('pdf')" value="生成PDF"/> 19 <input type="button" onclick="gen('docx')" value="生成Word"/> 20 <br/> 21 <script id="tmpl" type="text/html"> 22 <xdoc version="A.3.0"> 23 <body> 24 <para heading="1" lineSpacing="28"> 25 <text class="head" valign="center" fontName="标宋" fontSize="29"><%=title%></text> 26 </para> 27 <para> 28 <img src="<%=img%>" sizeType="autosize"/> 29 </para> 30 <para lineSpacing="9"> 31 <text class="content" fontName="仿宋" fontSize="18"><%=content%></text> 32 </para> 33 </body> 34 </xdoc> 35 </script> 36 <script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script> 37 <script type="text/javascript"> 38 var type="docx";//pdf 39 var data = { 40 title: "导出"+type+"文件", 41 img: "http://www.wordlm.com/uploads/allimg/130101/1_130101000405_1.jpg", 42 content: "我这样就可以导出"+type+"格式的文件了，是不是很方便", 43 }; 44 function renderTemplate(){ 45 var template=$("#tmpl").html(); 46 var html=template.replace(/<%=title%>/,data.title) 47 .replace(/<%=img%>/,data.img) 48 .replace(/<%=content%>/,data.content); 49 $("body").append(html); 50 } 51 renderTemplate(); 52 function gen(type) { 53 XDoc.to(baidu.template('tmpl', data), type, {}, "_blank"); 54 } 55 console.log('http://www.xdocin.com/xml.html'); 56 </script> 57 </body> 58 </html>
这里我通过renderTemplate函数叫js模板渲染到HTML中，实现了文本的展示和导出内容的结合。而因为这里导出的word文档是需要特别设置样式的，所以在页面样式展示下我们可以通过添加.class的方式设置。
附部分导出word文档样式设置：
截图：
更多参考：
FileSave.js:https://github.com/eligrey/FileSaver.js
百度导出文档模板：http://www.xdocin.com/xml.html