JQYERY.ajaxFileUpload 中AJAX上传图片和声音

//前台JS

                    if (/^.+\.(gif|jpg|jpeg|png|bmp)$/i.test(upload.toLowerCase())) {                  //图片验证格式

　　　　　　　//if (/^.+\.(mp3|wav|rm|ape|wma)$/i.test(uploadSound.toLowerCase())) {                  //声音验证格式
                        $.ajaxFileUpload({
                            url: "../ajax/crm/MemoHandler.ashx",
                            secureuri: false,
                            fileElementId: 'upload',
                            dataType: 'text',
                            success: function (data) {
                                if (data == "1") {
                                    alert("上传的图片不得大于500K");
                                    return false;
                                } else if (data == "2") {
                                    alert("服务器繁忙，请稍后再试！");
                                    return false;
                                } else if (data == "3") {//add by wbliu at 2012-09-20 on 上传伪图片显示成声音播放Bug修复
                                    alert("上传的必须为图片！");
                                    return false;
                                } else {
                                    parent.doUploadPic(tTime, ctype, data.toString());
                                }
                            }
                        });
                    }
                    else {
                        alert("文件类型只支持gif、jpg、jpeg、bmp和png格式！");
                        document.getElementById("upload").outerHTML = document.getElementById("upload").outerHTML;            //清空文件选择框中的内容
                        return false;
                    }

//AJAX中判断

            HttpFileCollection files = HttpContext.Current.Request.Files;
            HRSO.BLL.PicBLL picBLL = new PicBLL();
            if (files.Count > 0){
                HttpPostedFile file = files[0];//这样取上传文件对象
                try{                   
                    int fileCntentLength = files[0].ContentLength;
                    if (fileCntentLength > 0){
                        if (fileCntentLength > 500 * 1024){
                            resultStr = "1";                                      //判断是否大于500K
                        }else{
                            //begin add by wbliu at 2012-09-20 on 上传伪图片显示成声音播放Bug修复
                            string fileContentType = file.ContentType;
                            if (fileContentType == "image/gif" || fileContentType == "image/jpg" || fileContentType == "image/pjpeg" || fileContentType == "image/jpeg" || fileContentType == "image/x-png" || fileContentType == "image/bmp")
                            {
                                resultStr = picBLL.savePicToDatabase(fileCntentLength, files[0].InputStream, "T_Memo_ContentPath");          //保存到图片数据库返回guid(字符串类型)做为图片url   
                            }
                            else
                            {
                                resultStr = "3";
                            }
                            //end                           
                        }
                    }
                }catch (Exception){
                    resultStr = "2";            //异常
                }
               
               
                context.Response.Write(resultStr);
            }

//父页面执行操作

       /*执行图片上传*/
        function doUploadPic(tTime, ctype, pickey) {
            hidCreateNoteMain();
            $.ajax({
                type: "post",
                url: "../ajax/crm/MemoHandler.ashx",
                data: "action=uppic&ctime=" + encodeURI(tTime) + "&pickey=" + encodeURI(pickey) + "&ctype=" + ctype + "&rand=" + Math.random(),                     //tTime：提醒时间；pickey：图片；ctype：
                dataType: "text",
                success: function (data) {
                    if (data > 0) {
                        alert("添加成功！");
                        BindCalendar();
                    } else {
                        alert("系统繁忙，请稍后再试！");
                    }
                }
            });
        }

//父页面AJAX中执行

if (action == "uppic") {
            DateTime ctime = Convert.ToDateTime(HttpUtility.UrlDecode(context.Request["ctime"].ToString()));                        //提醒时间
            string pickey = HttpUtility.UrlDecode(context.Request["pickey"].ToString());                                            //备注图片标识
            string ctype = Convert.ToString(context.Request["ctype"]);                                                              //联系方式（1：电话；2：短信；3：email）
            HRSO.BLL.CrmCustomGroupBLL crmCustomGroupBLL = new CrmCustomGroupBLL();
            HRSO.Model.CrmMemo crmMemo = new CrmMemo();
            crmMemo.CompanyKey = hrcompanykey;
            crmMemo.UserKey = hrukey;
            crmMemo.RemindTime = ctime;
            crmMemo.RemindContent = "备注为图片！";
            crmMemo.ReminderByEmail = ctype == "0" ? "N" : "Y";
            crmMemo.ContentPath = pickey;
            resultStr = crmCustomGroupBLL.AddMemo(crmMemo).ToString();
            context.Response.Write(resultStr);
        }

//图片和声音转化成流文件保存到数据库

        #region 把图片存到图片数据库表中
        /// <summary>
        /// 把图片存到图片数据库表中
        /// </summary>
        /// <param name="fileContentLength">上传图片大小(如：FileUpload1.PostedFile.ContentLength;)</param>
        /// <param name="inputStream">数据流对象(如：hp.InputStream;)</param>
        /// <param name="picTable">上传的表名</param>
        /// <returns>string</returns>
        public string savePicToDatabase(int fileContentLength, Stream inputStream, string pictureTable)
        {
            Byte[] FileData = new Byte[fileContentLength];
            //创建访问客户端上传文件的对象
            //HttpPostedFile hp = FileUpload1.PostedFile;
            //创建数据流对象
            //Stream sr = hp.InputStream;
            Stream sr = inputStream;
            //将图片数据放到FileData数组对象实例中                   
            sr.Read(FileData, 0, fileContentLength);
            //调用存储图片二进制数据（数据库）方法函数
            PicBLL picbll = new PicBLL();
            Guid picid = picbll.AddPic(pictureTable, FileData);
            return picid.ToString();
        }