【HTML5+MVC4】xhEditor网页编辑器图片上传

<textarea id="@ViewData.ModelMetadata.PropertyName" name="@ViewData.ModelMetadata.PropertyName" rows="30" cols="80" style="width: 96%">@Model</textarea>
<script type="text/javascript">
    $(document).ready(function () {
        $('#@ViewData.ModelMetadata.PropertyName').xheditor({ upMultiple: 5, upImgUrl: '@Url.Content("~/Images/XhUpload")',upImgExt: 'jpg,jpeg,gif,png' });
    });
</script>

#region XhEditor网页编辑器图片上传【HTML5+】
        /// <summary>
        /// XhEditor网页编辑器图片上传【HTML5+】
        /// </summary>
        /// <param name="fileData"></param>
        /// <returns></returns>
        [HttpPost]
        public ActionResult XhUpload(HttpPostedFileBase fileData)
        {
            Response.Charset = "UTF-8";

            // 初始化一大堆变量
            //string inputname = "filedata";//表单文件域name
            string xheditorUpload = WebConfigurationManager.AppSettings["XheditorUpload"];     //配置文件： 上传文件保存路径，结尾不要带/
            string imagesDomain = WebConfigurationManager.AppSettings["ImagesDomain"];         //配置文件：网站域名
            int dirtype = 1;                 // 1:按天存入目录 2:按月存入目录 3:按扩展名存目录  建议使用按天存
            int maxattachsize = 2097152;     // 最大上传大小，默认是2M
            string upext = "txt,rar,zip,jpg,jpeg,gif,png,swf,wmv,avi,wma,mp3,mid";    // 上传扩展名
            int msgtype = 2;                 //返回上传参数的格式：1，只返回url，2，返回参数数组
            string immediate = Request.QueryString["immediate"];//立即上传模式，仅为演示用
            byte[] file;                     // 统一转换为byte数组处理
            string localname = "";
            string disposition = Request.ServerVariables["HTTP_CONTENT_DISPOSITION"];

            string err = "";
            string msg = "''";

            if (disposition != null)
            {
                // HTML5上传
                file = Request.BinaryRead(Request.TotalBytes);
                localname = Server.UrlDecode(Regex.Match(disposition, "filename=\"(.+?)\"").Groups[1].Value);// 读取原始文件名
            }
            else
            {
                //HttpFileCollectionBase filecollection = Request.Files;
                //HttpPostedFileBase fileData = filecollection.Get(inputname);

                // 读取原始文件名
                localname = fileData.FileName;
                // 初始化byte长度.
                file = new Byte[fileData.ContentLength];

                // 转换为byte类型
                System.IO.Stream stream = fileData.InputStream;
                stream.Read(file, 0, fileData.ContentLength);
                stream.Close();

                //filecollection = null;
            }

            if (file.Length == 0) err = "无数据提交";
            else
            {
                if (file.Length > maxattachsize) err = "文件大小超过" + maxattachsize + "字节";
                else
                {
                    string attach_dir, attach_subdir, filename, extension, target;

                    // 取上载文件后缀名
                    extension = GetFileExt(localname);

                    if (("," + upext + ",").IndexOf("," + extension + ",") < 0) err = "上传文件扩展名必需为：" + upext;
                    else
                    {
                        switch (dirtype)
                        {
                            case 2:
                                attach_subdir = "month_" + DateTime.Now.ToString("yyMM");
                                break;
                            case 3:
                                attach_subdir = "ext_" + extension;
                                break;
                            default:
                                attach_subdir = "day_" + DateTime.Now.ToString("yyMMdd");
                                break;
                        }
                        attach_dir = xheditorUpload.Replace("~/", "") + "/" + attach_subdir + "/";

                        // 生成随机文件名
                        Random random = new Random(DateTime.Now.Millisecond);
                        filename = DateTime.Now.ToString("yyyyMMddhhmmss") + random.Next(10000) + "." + extension;

                        target = attach_dir + filename;
                        try
                        {
                            CreateFolder(Server.MapPath("~/" + attach_dir));

                            System.IO.FileStream fs = new System.IO.FileStream(Server.MapPath("~/" + target), System.IO.FileMode.Create, System.IO.FileAccess.Write);
                            fs.Write(file, 0, file.Length);
                            fs.Flush();
                            fs.Close();
                        }
                        catch (Exception ex)
                        {
                            err = ex.Message.ToString();
                        }

                        // 立即模式判断
                        if (immediate == "1") target = "!" + target;
                        target = jsonString(target);
                        if (msgtype == 1)
                        {
                            msg = "'" + imagesDomain + "/" + target + "'";
                        }
                        else
                        {
                            //url必须为绝对路径
                            msg = "{'url':'" + imagesDomain + "/" + target + "','localname':'" + jsonString(localname) + "','id':'1'}";
                        }
                    }
                }
            }

            file = null;

            //Response.Write("{'err':'" + jsonString(err) + "','msg':" + msg + "}");
            return this.Content("{'err':'" + jsonString(err) + "','msg':" + msg + "}");
        }


        string jsonString(string str)
        {
            str = str.Replace("\\", "\\\\");
            str = str.Replace("/", "\\/");
            str = str.Replace("'", "\\'");
            return str;
        }


        string GetFileExt(string FullPath)
        {
            if (FullPath != "") return FullPath.Substring(FullPath.LastIndexOf('.') + 1).ToLower();
            else return "";
        }

        void CreateFolder(string FolderPath)
        {
            if (!System.IO.Directory.Exists(FolderPath)) System.IO.Directory.CreateDirectory(FolderPath);
        } 
        #endregion

        [DataType("RichText")]
        public string Texts { get; set; }

@Html.EditorFor(t => t.Texts)

@{
    ViewBag.Title = "Home Page";
}

<div class="row">
    <form id="InputFrm" name="InputFrm" action="@Url.Action("Save")" method="post" class="form-group">
        <div class="form-group">
            <textarea id="elm2" name="elm2" class="xheditor-mfull" rows="12" cols="80" style="width: 80%"></textarea>
        </div>
        <input type="submit" name="save" value="Submit" />

    </form>
</div>
@section scripts
{
    <script type="text/javascript" src="@Url.Content("~/Scripts/xheditor-1.2.2/xheditor-1.2.2.min.js")"></script>
    <script type="text/javascript" src="@Url.Content("~/Scripts/xheditor-1.2.2/xheditor_lang/zh-cn.js")"></script>
    <script type="text/javascript">
        $('#elm2').xheditor({ upImgUrl: "@Url.Action("XhUpload","Image")", upImgExt: "jpg,jpeg,gif,png" });
    </script>
}