ocupload jquery 的应用

$(function () {
            $(".uploadfile").upload({
                action: 'CourseXMLFileUploadHander.ashx',
                name: 'xml',
                params: {
                    'type': 'uploadCourseXMLFile',
                    'rand': Math.random()
                },
                onSelect: function (self, element) {
                    this.autoSubmit = false;
                    var re = new RegExp("(xml){1}quot;, "i");

                    if (!re.test(this.filename())) {
                        alert("Only xml file can be uploaded");
                    }
                    else {
                        this.submit();
                    }
                },
                onSubmit: function (self, element) {
                    $('.uploadfile').hide();
                    $('#ajax_update').parent().show();
                    //alert('Uploading file...');
                },
                onComplete: function (data, self, element) {
                    $('#ajax_update').parent().hide();
                    $('.uploadfile').show();
                    self.resetInput();
                    try {
                        var ret = data;
                        if (ret.indexOf("exception") >= 0) {
                            alert('Upload file exception: ' + eval(data)[0].exception);
                        }
                        else {
                            showSuccess('File is successfully Load.');

                            uploadSuccess(ret);

                        }
                    } catch (err) {
                        alert(data);
                    }
                }
            });
        });

==============================================

<asp:Button ID="btnUploadXMLFile" runat="server" Text="LoadXMLFile" CausesValidation="false"
                            CssClass="uploadfile" />

 <script src="../js/jquery.ocupload/jquery.ocupload-1.1.2-mod.js" type="text/javascript"></script>

================================================

 public class CourseXMLFileUploadHander : IHttpHandler
    {
        public bool IsReusable { get { return false; } }

        public void ProcessRequest(HttpContext context)
        {
            try
            {
                HttpPostedFile file = context.Request.Files["xml"];
                //string folder = context.Server.MapPath("../UploadedFiles");
                string fileName = Path.GetFileName(file.FileName);

                if (Path.GetExtension(fileName).ToLower() != ".xml")
                {
                    context.Response.Write(string.Concat(@"[{""exception"":""The uploaded file is not a xml file.""}]"));
                    return;
                }

                string content = string.Empty;

                using (StreamReader sr = new StreamReader(file.InputStream, System.Text.Encoding.Default))
                {
                    content = sr.ReadToEnd();

                }
                context.Response.Write(ConvertStr(content));

            }
            catch (Exception ex)
            {
                StringBuilder sb = new StringBuilder();
                while (ex != null)
                {
                    sb.AppendFormat("\r\n. {0}", ex.Message);
                    ex = ex.InnerException;
                }
                context.Response.Write(string.Concat(@"[{""exception"":""", sb.ToString(), @"""}]"));
            }
        }

        private static string ConvertStr(string inputString)
        {
            string retVal = inputString;
            retVal = retVal.Replace("&", "&");
            retVal = retVal.Replace(""", """);
            retVal = retVal.Replace("<", "<");
            retVal = retVal.Replace(">", ">");
            //retVal = retVal.Replace(" ", " ");
            //retVal = retVal.Replace(" ", "  ");
            //retVal = retVal.Replace("t", "  ");
            //retVal = retVal.Replace("r", "<br>");
            return retVal;
        }

    }

最后

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