js 将网页下载为html

原创 于 2018-05-29 14:20:41 发布 · 1.8k 阅读 · 0 ·
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本文介绍了一种将HTML文档转换并保存为Word文件的方法，利用了jQuery和FileSaver.js等工具，实现了导出功能。

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Test.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>网页HTML存本地</title>
    <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
	 <script src="FileSaver.js"></script>
	 <script src="jqueryword.js"></script>
	<style>
tr {
	mso-height-source: auto;
	mso-ruby-visibility: none;
}

col {
	mso-width-source: auto;
	mso-ruby-visibility: none;
}

br {
	mso-data-placement: same-cell;
}

ruby {
	ruby-align: left;
}

.style0 {
	mso-number-format: General;
	text-align: general;
	vertical-align: bottom;
	white-space: normal;
	mso-rotate: 0;
	mso-background-source: auto;
	mso-pattern: auto;
	color: windowtext;
	font-size: 12.0pt;
	font-weight: 400;
	font-style: normal;
	text-decoration: none;
	font-family: 宋体;
	mso-generic-font-family: auto;
	mso-font-charset: 134;
	border: none;
	mso-protection: locked visible;
	mso-style-name: 常规;
	mso-style-id: 0;
}

td {
	mso-style-parent: style0;
	padding-top: 1px;
	padding-right: 1px;
	padding-left: 1px;
	mso-ignore: padding;
	color: windowtext;
	font-size: 12.0pt;
	font-weight: 400;
	font-style: normal;
	text-decoration: none;
	font-family: 宋体;
	mso-generic-font-family: auto;
	mso-font-charset: 134;
	mso-number-format: General;
	text-align: general;
	vertical-align: bottom;
	border: none;
	mso-background-source: auto;
	mso-pattern: auto;
	mso-protection: locked visible;
	white-space: normal;
	mso-rotate: 0;
	border: 1px solid black;
}

.xl65 {
	mso-style-parent: style0;
	text-align: center;
	vertical-align: middle;
	border: 1px solid black;
}

.xl66 {
	mso-style-parent: style0;
	text-align: center;
	vertical-align: middle;
	border: 1px solid black;
	word-wrap: break-word;
	word-break: break-all;
}

.xl67 {
	mso-style-parent: style0;
	text-align: center;
	vertical-align: middle;
	border: 1px solid black;
	white-space: normal;
}

.xl68 {
	mso-style-parent: style0;
	text-align: left;
	vertical-align: top;
	white-space: normal;
}

.xl69 {
	mso-style-parent: style0;
	text-align: left;
	vertical-align: top;
	border-top: .5pt solid windowtext;
	border-right: none;
	border-bottom: .5pt solid windowtext;
	white-space: normal;
}

.xl70 {
	mso-style-parent: style0;
	text-align: left;
	vertical-align: top;
	border-top: .5pt solid windowtext;
	border-right: .5pt solid windowtext;
	border-bottom: .5pt solid windowtext;
	white-space: normal;
}

.xl71 {
	mso-style-parent: style0;
	font-size: 22.0pt;
	font-weight: 700;
	text-align: center;
	vertical-align: middle;
	white-space: normal;
}

.xl72 {
	mso-style-parent: style0;
	text-align: left;
	vertical-align: top;
	border: 1px solid black;
	white-space: normal;
}

.xl73 {
	mso-style-parent: style0;
	font-size: 18.0pt;
	font-weight: 700;
	text-align: center;
	vertical-align: middle;
	white-space: normal;
}


table {
	mso-displayed-decimal-separator: "\.";
	mso-displayed-thousand-separator: "\,";
}

@page {
	margin: 1.0in .75in 1.0in .75in;
	mso-header-margin: .5in;
	mso-footer-margin: .5in;
}

ruby {
	ruby-align: left;
}

rt {
	color: windowtext;
	font-size: 9.0pt;
	font-weight: 400;
	font-style: normal;
	text-decoration: none;
	font-family: 宋体;
	mso-generic-font-family: auto;
	mso-font-charset: 134;
	mso-char-type: none;
	display: none;
}
p {
	font-size: 12.0pt;
	font-weight: 400;
	font-style: normal;
	text-decoration: none;
	font-family: 宋体;
}

.page_content{
    line-height:28pt;
      font-family:FZXBSJW-GB1-0 ,方正小标宋简体;
    font-size: 13pt;
    color:#000000;
    text-indent:2em;
    }
</style>
</head>
<body>
<input type="button" value="导出" id="bth">
	<div style="margin:0 auto;width:500px" id="content">
		<p  height=67 class="xl71 text-center" width=640>中介机构中选通知书</p>
			<p style="line-height:28pt;font-family:FZXBSJW-GB1-0,方正小标宋简体;font-size: 13pt;color:#000000"><span id='CONAME'></span>:</p>
			<p class='page_content' >根据中介机构公开选取公告，我单位于
			<span id='confirmDate'></span>在中介服务网进行中介机构选取，采用<span id="bid_type"></span>确定中介机构。</p>
			<p class='page_content'>现确定你公司为<span id='title'></span>项目招标代理活动的中介机构中选单位。请你单位持本中选确认书与业主单位联系。</p>
			<p id="button_tr" style="text-align:center">
			
						<span style="color:red;">如果在IE或者360浏览器（所有IE内核浏览器）中打印，请使用打印预览功能查看打印效果，如需打印为一张，请在打印预览中进行缩放设置。</span>
			</p>
			
	</div>
<script>


$(function(){
$("#bth").click(function() {
 $("#content").wordExport("中选通知书");    

});
})
</script>
</body>
</html>

FileSaver.js

/* 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 unsupported
    if (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {
        return;
    }
    var
          doc = 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 URL
                    get_URL().revokeObjectURL(file);
                } else { // file is a File
                    file.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 BF
            if (/^\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 URLs
            var
                  filesaver = 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 urls
                        var 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 dispatching
                            filesaver.readyState = filesaver.DONE;
                            dispatch_all();
                        };
                        reader.readAsDataURL(blob);
                        filesaver.readyState = filesaver.INIT;
                        return;
                    }
                    // don't create more object URLs than needed
                    if (!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.html
                            view.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 window
 
if (typeof module !== "undefined" && module.exports) {
  module.exports.saveAs = saveAs;
} else if ((typeof define !== "undefined" && define !== null) && (define.amd !== null)) {
  define([], function() {
    return saveAs;
  });
}

jqueryword.js

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
            };
            // 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');
            for (var i = 0; i < img.length; i++) {
                // Calculate dimensions of output image
                var w = Math.min(img[i].width, options.maxWidth);
                var h = img[i].height * (w / 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");
                $(img[i]).attr("src", img[i].src);
                img[i].width = w;
                img[i].height = h;
                // Save encoded image to array
                images[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 data
            var 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 = "";
 
            // 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)");
    }
}


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