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[点晴永久免费OA]js将HTML导出生成word文档
admin
2022年4月14日 18:11 本文热度 2251

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

  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 statics = {
  6. 

                    mhtml: {
  7. 

                        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>",
  8. 

                        head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n",
  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 = "\n";
  55. 

                for (var i = 0; i < images.length; i++) {
  56. 

                    mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n";
  57. 

                    mhtmlBottom += "Content-Location: " + images[i].location + "\n";
  58. 

                    mhtmlBottom += "Content-Type: " + images[i].type + "\n";
  59. 

                    mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + "\n\n";
  60. 

                    mhtmlBottom += images[i].data + "\n\n";
  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 841.14px;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 = statics.mhtml.top.replace("_html_", statics.mhtml.head.replace("_styles_", styles) + statics.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. 

    }

和FileSaver.js源码

  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*;.*charset\s*=\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. 

    }

调用插件

  1. 

    <!DOCTYPE html>
  2. 

    <html>
  3. 

     
  4. 

    <head lang="en">
  5. 

        <meta charset="UTF-8">
  6. 

        <title>html导出生成word文档</title>
  7. 

    </head>
  8. 

     
  9. 

    <body>
  10. 

        <div class="word">
  11. 

            <h1>我们的梦想来自内心深处的孤独</h1>>
  12. 

            <p align="center" style="font-size:20pt;font-weight:bold;">JS导出Word文档</p>
  13. 

            <div>我们来自同一个世界</div>
  14. 

        </div>
  15. 

        <input type="button" value="导出word">
  16. 

        <script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script>
  17. 

        <script type="text/javascript" src="FileSaver.js"></script>
  18. 

        <script type="text/javascript" src="jquery.wordexport.js"></script>
  19. 

        <script>
  20. 

            $(function () {
  21. 

                $("input[type='button']").click(function (event) {
  22. 

                    $(".word").wordExport('word文档');
  23. 

                });
  24. 

            })
  25. 

        </script>
  26. 

    </body>
  27. 

    </html>

导出的html代码样式需要内联样式，

2.vue中使用

首先看看结构目录

2.1 在index.html全局引入jQuery

2.2   cmd安装FileSaver.js

npm install file-saver --save

在需要的组件中引入file-saver

2.3  在需要的组件中引入

2.4使用

.wordExport("生成文档")；这个是生成文档的文件名


该文章在 2022/4/14 18:11:57 编辑过
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