CKEditor上传插件

前言

CKEditor上传插件是不是免费的，与您分享在此开发。这个插件是基于ASP.NET MVC下开发的，假设是webform的用户或者其他语言的用户。能够參考把server端做对应的改动。看图：

大家能够看到Browse Button和Upload选项卡。

以下分步具体解释三部分的实现：浏览server端图片或文件。上传图片或文件，CKEditor配置。

浏览server端图片或文件

先上图：

做了一个十分简易的浏览页面。左半部分是目录树。右半部分则显示当前目录中的图片。

ASP.NET MVC中Controller中浏览页面的action代码例如以下(即页面相应的server端代码)：

public ActionResult Browse()

        {

            var type = Request.QueryString["Type"];

            var isImage = !string.IsNullOrEmpty(type) && type.Equals("Images", StringComparison.InvariantCultureIgnoreCase);

            ViewBag.IsImg = isImage;

            return View();

        }

不是ASP.NET MVC的用户。就把它当成是页面载入。

View（即页面代码）代码例如以下：

@{

    Layout = null;

}

<!DOCTYPE html>

<html>

<head>

    <meta name="viewport" content="width=device-width" />

    <title>Browse</title>

    @Scripts.Render("~/bundles/jquery")

    @Scripts.Render("~/bundles/modernizr")

    <link href="/SHTracker/Scripts/TreeView/jquery.treeview.css" rel="stylesheet" type="text/css" />

    <link href="/SHTracker/Scripts/TreeView/screen.css" rel="stylesheet" type="text/css" />

    <script src="/SHTracker/Scripts/TreeView/jquery.treeview.pack.js" type="text/javascript"></script>

    <script type="text/javascript">

        $(document).ready(function () {

            $("body>aside>ul").treeview({

                animated: true,

                persist: "location",

                collapsed: true,

                unique: false

            });

        });

    </script>

    <style type="text/css">

        aside{ border: solid 3px #006400;float: left;width: 20%;height: 100%;padding: 5px;}

        section{ float: right;padding: 5px;margin-left: 10px;border: solid 3px #008b8b;width: 70%;height: 100%;}

        section ul li{ float: left;padding: 10px;list-style-type: none;}

        img{ z-index: 999;cursor: pointer;}

    </style>

</head>

<body>

    <aside>

        <ul>

            <li>Home</li>

            <ul>

                @if ((bool) ViewBag.IsImg)

                {

                    <li>Images

                        <ul>

                            @foreach (var dir in Directory.GetDirectories(Server.MapPath("/Images")))

                            {

                                <li><a href="@ICStars2_0.Common.UrlHelper.SafeAddQueryToURL("folderpath", Url.Encode(dir.Replace(Server.MapPath("/"), "")), Request.RawUrl)">@Path.GetFileName(dir)</a></li>

                            }

                        </ul>

                    </li>

                }

                else

                {

                    <li>Docs

                        <ul>

                            @foreach (var dir in Directory.GetDirectories(Server.MapPath("/Docs")))

                            {

                                <li><a href="@ICStars2_0.Common.UrlHelper.SafeAddQueryToURL("folderpath", Url.Encode(dir.Replace(Server.MapPath("/"), "")), Request.RawUrl)">@Path.GetFileName(dir)</a></li>

                            }

                        </ul>

                    </li>

                }

            </ul>

        </ul>

    </aside>

    <section>

        @if (!string.IsNullOrEmpty(Request.QueryString["folderpath"]))

        {

            <ul>

                @{ var imgTypes = new[] {".jpg", ".gif", ".png"}; }

                @foreach (var file in Directory.GetFiles(Server.MapPath("/" + Request.QueryString["folderpath"])))

                {

                    if ((bool) ViewBag.IsImg && imgTypes.Contains(Path.GetExtension(file.ToLower())))

                    {

                        <li><img src="/@Request.QueryString["folderpath"].Replace("\\", "/")/@Path.GetFileName(file)" width="100" onclick=" window.opener.CKEDITOR.tools.callFunction(@Request.QueryString["CKEditorFuncNum"], this.src);window.close(); "/></li>

                    }

                    else

                    {

                        <li><a href="javascript:" onclick=" window.opener.CKEDITOR.tools.callFunction(@Request.QueryString["CKEditorFuncNum"], '/@Request.QueryString["folderpath"].Replace("\\", "/")/@Path.GetFileName(file)');window.close(); ">@Path.GetFileName(file)</a></li>

                    }

                }

            </ul>

        }

    </section>

</body>

</html>

页面引用了JQUERY，树状菜单部分是jquery的treeview插件，可自行GOOGLE。也可留言，我email给你。

当中的ICStars2_0.Common.UrlHelper.SafeAddQueryToURL方法。事实上是我比較懒了随便GOOGLE了一个使用，就是给URL加入參数。代码例如以下：

#region = SafeAddQueryToURL =

        /// <summary>

        /// Add a query to an URL.

        /// if the URL has not any query,then append the query key and value to it.

        /// if the URL has some queries, then check it if exists the query key already,replace the value, or append the key and value

        /// if the URL has any fragment, append fragments to the URL end.

        /// </summary>

        /// <example>

        ///             string s = "http://blog.csdn.net/leewhoee/?

a=1&b=2&c=3#tag";

        /// WL(SafeRemoveQueryFromURL("a",s));

        /// WL(SafeRemoveQueryFromURL("b",s));

        /// WL(SafeRemoveQueryFromURL("c",s));

        /// WL(SafeAddQueryToURL("d","new",s));

        /// WL(SafeAddQueryToURL("a","newvalue",s));

        ///            输出例如以下:

        ///            http://blog.csdn.net/leewhoee/?b=2&c=3#tag

        ///            http://blog.csdn.net/leewhoee/?a=1&c=3#tag

        ///            http://blog.csdn.net/leewhoee/?a=1&b=2#tag

        ///            http://blog.csdn.net/leewhoee/?

a=1&b=2&c=3&d=new#tag

        ///            http://blog.csdn.net/leewhoee/?a=newvalue&b=2&c=3#tag

        /// </example>

        public static string SafeAddQueryToURL(string key, string value, string url)

        {

            int fragPos = url.LastIndexOf("#");

            string fragment = string.Empty;

            if (fragPos > -1)

            {

                fragment = url.Substring(fragPos);

                url = url.Substring(0, fragPos);

            }

            int querystart = url.IndexOf("?");

            if (querystart < 0)

            {

                url += "?" + key + "=" + value;

            }

            else

            {

                Regex reg = new Regex(@"(?<=[&\?])" + key + @"=[^\s&#]*", RegexOptions.Compiled);

                if (reg.IsMatch(url))

                    url = reg.Replace(url, key + "=" + value);

                else

                    url += "&" + key + "=" + value;

            }

            return url + fragment;

        }

        #endregion

        #region = SafeRemoveQueryFromURL =

        /// <summary>

        /// Remove a query from url

        /// </summary>

        /// <param name="key"></param>

        /// <param name="url"></param>

        /// <returns></returns>

        public static string SafeRemoveQueryFromURL(string key, string url)

        {

            Regex reg = new Regex(@"[&\?

]" + key + @"=[^\s&#]*&?", RegexOptions.Compiled);

            return reg.Replace(url, new MatchEvaluator(PutAwayGarbageFromURL));

        }

        private static string PutAwayGarbageFromURL(Match match)

        {

            string value = match.Value;

            if (value.EndsWith("&"))

                return value.Substring(0, 1);

            else

                return string.Empty;

        }

        #endregion

致此，“浏览server端图片或文件”部分就完毕了。

上传图片或文件

上图：

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(最后改动 2014/6/11)

由于这个弹框是CKEditor提供的，我们仅仅须要处理请求。以下是处理WEB请求的ACTION(能够用不论什么语言处理些请求，逻辑上大体同样)：

[HttpPost]

        public ActionResult FileUpload()

        {

            var ckEditorFuncNum = Request.QueryString["CKEditorFuncNum"];

            var type = Request.QueryString["Type"];

            var isImage = !string.IsNullOrEmpty(type) && type.Equals("Images", StringComparison.InvariantCultureIgnoreCase);

            var maxContentLength = isImage ? 512*1024 : 1024*1024;

            var file = Request.Files["upload"];

            if (file == null)

            {

                return Content("No file has been chosen!");

            }

            if (file.ContentLength > maxContentLength)

            {

                return Content("The image file size should be no bigger than 512KB! The document file size should be no bigger than 1024KB!");

            }

            var urlpath = string.Empty;

            var datestamp = DateTime.Now.ToString("MMddyyyy");

            var rootfolderpath = isImage ? "/Images/" : "/docs/";

            var folderpath = Server.MapPath(rootfolderpath) + datestamp;

            if (file.ContentLength > 0)

            {

                var filename = Path.GetFileNameWithoutExtension(file.FileName);

                var fileextension = Path.GetExtension(file.FileName);

                var timestamp = DateTime.Now.ToString("MMddyyyyHHmmssfff");

                var filepath = string.Format("{0}/{1}{2}{3}", folderpath, filename, timestamp,

                                                fileextension);

                urlpath = string.Format("{4}{0}/{1}{2}{3}", datestamp, filename, timestamp,

                                                fileextension, rootfolderpath);

                if (!Directory.Exists(folderpath))

                {

                    Directory.CreateDirectory(folderpath);

                }

                file.SaveAs(filepath);

            }

            return

                Content(

                    string.Format(

                        @"<script type=""text/javascript"">window.parent.CKEDITOR.tools.callFunction({0}, ""{1}"");</script>",

                        ckEditorFuncNum, urlpath));

        }

假设你不懂ASP.NET MVC，以下做一些简单的解释。[HttpPost]表明仅仅处理POST请求，return Content("")是返回一个纯文本字符串，其他部分大同小异。唯一值得注意的是最后返回了一段javascript脚本给CKEditor。它促使窗体跳转到Image Info选项卡并把图片URL传递过去，然后预览。例如以下图：

图片或文件上传部分到这里为止。以下介绍怎么配置CKEditor。

CKEditor配置

CKEditor里有一个配置文件config.js，我们仅仅须要设置几个链接就能够了。代码例如以下：

/**

 * @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.

 * For licensing, see LICENSE.html or http://ckeditor.com/license

 */

CKEDITOR.editorConfig = function (config) {

    config.extraPlugins = "autogrow,imagebrowser,filebrowser";

    /*config autogrow*/

    config.autoGrow_maxHeight = 400;

    /*config autogrow end*/

    /*config imagebrowser*/

    //config.imageBrowser_listUrl = "";

    /*config imagebrowser end*/

    /*config filebrowser*/

    config.filebrowserImageBrowseUrl = '/SHTracker/CKEditor/Browse?type=Images';

    config.filebrowserImageUploadUrl = '/SHTracker/CKEditor/FileUpload?

type=Images';

    config.filebrowserBrowseUrl = '/SHTracker/CKEditor/Browse?type=docs';

    config.filebrowserUploadUrl = '/SHTracker/CKEditor/FileUpload?type=docs';

    config.filebrowserImageWindowWidth = 640;

    config.filebrowserImageWindowHeight = 480;

    /*config filebrowser end*/

    // Define changes to default configuration here. For example:

    // config.language = 'fr';

    // config.uiColor = '#AADC6E';

    config.skin = 'Moono';

    config.disableNativeSpellChecker = false;

};

extraPlugins里设置了imagebrowser图片浏览和filebrowser文件浏览。然后为其配置处理请求的URL:

config.filebrowserImageBrowseUrl = '/SHTracker/CKEditor/Browse?type=Images';

    config.filebrowserImageUploadUrl = '/SHTracker/CKEditor/FileUpload?

type=Images';

    config.filebrowserBrowseUrl = '/SHTracker/CKEditor/Browse?

type=docs';

    config.filebrowserUploadUrl = '/SHTracker/CKEditor/FileUpload?type=docs';

请确保你的URL能够正确訪问。此时。这个CKEditor的文件图片上传插件就完毕了。

总结

相信不愿意花钱买CKEditor插件的朋友一定用的上此功能。对于一个富文本编辑器。怎么能没有文件图片上传功能呢？CKEditor又这么简单好用，功能强大，实在没有勇气放弃它而去选择其他的产品。

自已从零開始开发一个富文该编辑器？重复-create家庭的车轮，很少有人愿意去做？我们希望帮助人们谁有需求，假设花钱，请顶一下，非常感谢~~