一、业务需求：
需要将查看页面中的HTML内容及对应的鱼骨图（sbg）导出到word文档中；
二、解决方案：
1、需要svg通过后端请求转成png，重新写入到div中，供导出使用；
2、使用jQuery-Word-Export插件，将重构后的div内容导出到word中。
三、前端实现代码：
1、HTML页面中引入jquery.min.js、FileSaver.js、jquery.wordexport.js三个文件；
2、页面添加导出div，将导出内容写入（含转换后的png）；
3、添加导出按钮，导出按钮添加click事件：
$("#download").wordExport("分析与评价");
四、遇到的问题：
1、svg转png：前端插件很多不兼容IE浏览器，改成后端实现（Svg.dll【从官网上拉的源码修改后编译再引入项目中使用】）；
2、图片导出到word，很多后端插件不兼容office word 2003，改用前端实现；
3、jquery.wordexport.js的导出方法wordExport（）中var img = markup.find('img');不支持谷歌 浏览器，需改成var img = new Image();改后，导出的图片在WPS中不显示。
再次修改插件源码（生成canvas部分代码）如下：
if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") { (function ($) { $.fn.wordExport = function (fileName) { fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export"; var static = { 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,//最大宽度 defaultLength: 300 //默认高度 }; // Clone selected element before manipulating it var markup = $(this).clone(); // Remove hidden elements from the output markup.each(function () { var self = $(this); if (self.is(':hidden')) self.remove(); }); // Embed all images using Data URLs var images = Array(); var img = markup.find('img'); var mhtmlBottom = "\n"; //var img = new Image(); for (var i = 0; i < img.length; i++) { // Calculate dimensions of output image var w = Math.min(img[i].width == 0 ? options.maxWidth : img[i].width, options.maxWidth); var h = (img[i].height == 0 ? options.defaultLength : img[i].height) * (w / (img[i].width == 0 ? options.maxWidth : img[i].width)); // Create canvas for converting image to data URL var canvas = document.createElement("CANVAS"); canvas.width = w; canvas.height = h; // Draw image to canvas var context = canvas.getContext('2d'); context.drawImage(img[i], 0, 0, w, h); // Get data URL encoding of image var uri = canvas.toDataURL("image/png"); console.log(i+":"+uri); $(img[i]).attr("src", img[i].src); img[i].width = w; img[i].height = h; mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n"; mhtmlBottom += "Content-Location: " + uri + "\n"; mhtmlBottom += "Content-Type: " + uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")) + "\n"; mhtmlBottom += "Content-Transfer-Encoding: " + uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")) + "\n\n"; mhtmlBottom += uri.substring(uri.indexOf(",") + 1) + "\n\n"; } mhtmlBottom += "--NEXT.ITEM-BOUNDARY--"; //TODO: load css from included stylesheet var styles = ""; // Aggregate parts of the file together var fileContent = static.mhtml.top.replace("_html_", static.mhtml.head.replace("_styles_", styles) + static.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom; // Create a Blob with the file contents var 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)"); } }五、参照网址：
http://hoohtml.com/jQuery/Tools/2016090927.html
https://www.cnblogs.com/liudaihuablogs/p/9726700.html
https://blog.csdn.net/weixin_33743880/article/details/92385994
https://www.llxrandom.com/test/jqueryword
