【ASP.NET】swfuplod图片上传

根据网上例子简单实现了图片上传和修改的时候默认显示。

我是图片预览的时候存在了缓冲session里面，这里要改Global.asax文件不然session火狐会失效。

Global.asax文件修改：

      #region 防止火狐session丢失private void mySession() {try{string session_param_name = "ASPSESSID";string session_cookie_name = "ASP.NET_SESSIONID";if (HttpContext.Current.Request.Form[session_param_name] != null){UpdateCookie(session_cookie_name, HttpContext.Current.Request.Form[session_param_name]);}else if (HttpContext.Current.Request.QueryString[session_param_name] != null){UpdateCookie(session_cookie_name, HttpContext.Current.Request.QueryString[session_param_name]);}}catch (Exception){Response.StatusCode = 500;Response.Write("Error Initializing Session");}try{string auth_param_name = "AUTHID";string auth_cookie_name = FormsAuthentication.FormsCookieName;if (HttpContext.Current.Request.Form[auth_param_name] != null){UpdateCookie(auth_cookie_name, HttpContext.Current.Request.Form[auth_param_name]);}else if (HttpContext.Current.Request.QueryString[auth_param_name] != null){UpdateCookie(auth_cookie_name, HttpContext.Current.Request.QueryString[auth_param_name]);}}catch (Exception){Response.StatusCode = 500;Response.Write("Error Initializing Forms Authentication");}}private void UpdateCookie(string cookie_name, string cookie_value){HttpCookie cookie = HttpContext.Current.Request.Cookies.Get(cookie_name);if (cookie == null){cookie = new HttpCookie(cookie_name);HttpContext.Current.Request.Cookies.Add(cookie);}cookie.Value = cookie_value;HttpContext.Current.Request.Cookies.Set(cookie);}#endregion

根据例子修改了如下页面文件，因为前天用到了jquery的放大镜图片效果所以这里生产了3种不同尺寸大小的图片。

upload.aspx文件修改：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Collections.Generic;namespace WMP.Web.user.swfupload
{public partial class upload : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){System.Drawing.Image thumbnail_image = null;System.Drawing.Image original_image = null;System.Drawing.Image c_original_image = null;System.Drawing.Image b_original_image = null;System.Drawing.Bitmap final_image = null;System.Drawing.Graphics graphic = null;System.Drawing.Bitmap c_final_image = null;System.Drawing.Bitmap b_final_image = null;System.Drawing.Graphics c_graphic = null;System.Drawing.Graphics b_graphic = null;MemoryStream ms = null;MemoryStream maxms = null;MemoryStream c_ms = null;MemoryStream b_ms = null;try{//获得数据HttpPostedFile jpeg_image_upload = Request.Files["Filedata"];//获得上传的图片original_image = System.Drawing.Image.FromStream(jpeg_image_upload.InputStream);int width = original_image.Width;//原始图片宽度int height = original_image.Height;//原始图片高度//--目标图片存放小图int target_width = 68;//目标图片宽度int target_height = 68;//目标图片高度int new_width, new_height;//新宽度和新高度float target_ratio = (float)target_width / (float)target_height;//目标图片宽高比float image_ratio = (float)width / (float)height;//原始图片宽高比//计算新的长度和宽度if (target_ratio > image_ratio){new_height = target_height;new_width = (int)Math.Floor(image_ratio * (float)target_height);}else{new_height = (int)Math.Floor((float)target_width / image_ratio);new_width = target_width;}new_width = new_width > target_width ? target_width : new_width;new_height = new_height > target_height ? target_height : new_height;//创建缩略图final_image = new System.Drawing.Bitmap(target_width, target_height);//目标图片的像素图graphic = System.Drawing.Graphics.FromImage(final_image);//目标图片的画板graphic.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.Black), new System.Drawing.Rectangle(0, 0, target_width, target_height));//用黑色填充目标图片大小的矩形框int paste_x = (target_width - new_width) / 2;//从原点位移x坐标int paste_y = (target_height - new_height) / 2;//从原点位移y坐标graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic; //插补模式graphic.DrawImage(original_image, paste_x, paste_y, new_width, new_height);//画图ms = new MemoryStream();//创建一个新的内存流final_image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);//目标图片保存//--目标图片存放中图//生产中等图片int c_width = 300;//目标图片宽度--中等图片int c_height = 300;//目标图片高度--中等图片int c_new_width, c_new_height;//新宽度和新高度--中等图片float c_target_ratio = (float)c_width / (float)c_height;//目标图片宽高比float c_image_ratio = (float)width / (float)height;//原始图片宽高比//计算新的长度和宽度if (c_target_ratio > c_image_ratio){c_new_height = c_height;c_new_width = (int)Math.Floor(c_image_ratio * (float)c_height);}else{c_new_height = (int)Math.Floor((float)c_width / c_image_ratio);c_new_width = c_width;}c_new_width = c_new_width > c_width ? c_width : c_new_width;c_new_height = c_new_height > c_height ? c_height : c_new_height;//创建缩略图c_final_image = new System.Drawing.Bitmap(c_width, c_height);//目标图片的像素图c_graphic = System.Drawing.Graphics.FromImage(c_final_image);//目标图片的画板c_graphic.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.Black), new System.Drawing.Rectangle(0, 0, c_width, c_height));//用黑色填充目标图片大小的矩形框int c_paste_x = (c_width - c_new_width) / 2;//从原点位移x坐标int c_paste_y = (c_height - c_new_height) / 2;//从原点位移y坐标c_graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic; //插补模式c_graphic.DrawImage(original_image, c_paste_x, c_paste_y, c_new_width, c_new_height);//画图c_ms = new MemoryStream();//创建一个新的内存流c_final_image.Save(c_ms, System.Drawing.Imaging.ImageFormat.Jpeg);//目标图片保存c_ms = new MemoryStream();//创建一个新的内存流c_final_image.Save(c_ms, System.Drawing.Imaging.ImageFormat.Jpeg);//目标图片保存//--目标图片存放大图//生产中等图片int b_width = 800;//目标图片宽度--大图片int b_height = 800;//目标图片高度--大图片int b_new_width, b_new_height;//新宽度和新高度--中等图片float b_target_ratio = (float)b_width / (float)b_height;//目标图片宽高比float b_image_ratio = (float)width / (float)height;//原始图片宽高比//计算新的长度和宽度if (b_target_ratio > b_image_ratio){b_new_height = b_height;b_new_width = (int)Math.Floor(b_image_ratio * (float)b_height);}else{b_new_height = (int)Math.Floor((float)b_width / b_image_ratio);b_new_width = b_width;}b_new_width = b_new_width > b_width ? b_width : b_new_width;b_new_height = b_new_height > b_height ? b_height : b_new_height;//创建缩略图b_final_image = new System.Drawing.Bitmap(b_width, b_height);//目标图片的像素图b_graphic = System.Drawing.Graphics.FromImage(b_final_image);//目标图片的画板b_graphic.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.Black), new System.Drawing.Rectangle(0, 0, b_width, b_height));//用黑色填充目标图片大小的矩形框int b_paste_x = (b_width - b_new_width) / 2;//从原点位移x坐标int b_paste_y = (b_height - b_new_height) / 2;//从原点位移y坐标b_graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic; //插补模式b_graphic.DrawImage(original_image, b_paste_x, b_paste_y, b_new_width, b_new_height);//画图b_ms = new MemoryStream();//创建一个新的内存流b_final_image.Save(b_ms, System.Drawing.Imaging.ImageFormat.Jpeg);//目标图片保存//maxms = new MemoryStream();//创建一个新的内存流//original_image.Save(maxms, System.Drawing.Imaging.ImageFormat.Jpeg);//原始图片保存string thumbnail_id = DateTime.Now.ToString("yyyyMMddHHmmssfff");Thumbnail thumb = new Thumbnail(thumbnail_id, b_ms.ToArray(), ms.ToArray(), c_ms.ToArray());List<Thumbnail> thumbnails = Session["file_info"] as List<Thumbnail>;if (thumbnails == null){thumbnails = new List<Thumbnail>();Session["file_info"] = thumbnails;}thumbnails.Add(thumb);Response.StatusCode = 200;Response.Write(thumbnail_id);}catch{// If any kind of error occurs return a 500 Internal Server errorResponse.StatusCode = 500;Response.Write("An error occured");Response.End();}finally{// Clean upif (final_image != null) final_image.Dispose();if (c_final_image != null) c_final_image.Dispose();if (b_final_image != null) b_final_image.Dispose();if (graphic != null) graphic.Dispose();if (c_graphic != null) c_graphic.Dispose();if (b_graphic != null) b_graphic.Dispose();if (original_image != null) original_image.Dispose();if (thumbnail_image != null) thumbnail_image.Dispose();if (ms != null) ms.Close();if (maxms != null) maxms.Close();if (b_ms != null) b_ms.Close();if (c_ms != null) c_ms.Close();Response.End();}}}
}

js这里可以根据自己样式自己修改。可以弄好看点。
handler.js文件修改：

function fileQueueError(file, errorCode, message) {try {if (errorCode === SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {alert("上传文件过多.\n" + (message === 0 ? "你已经达到上传限制." : "您还可以选择上传 " + message + " 图片."));return;}var imageName = "error.gif";var errorName = "";if (errorCode === SWFUpload.errorCode_QUEUE_LIMIT_EXCEEDED) {errorName = "You have attempted to queue too many files.";}if (errorName !== "") {alert(errorName);return;}switch (errorCode) {case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:imageName = "zerobyte.gif";break;case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:imageName = "toobig.gif";break;case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:default:alert(message);break;}addImage("images/" + imageName);} catch (ex) {this.debug(ex);}}function fileDialogComplete(numFilesSelected, numFilesQueued) {try {if (numFilesQueued > 0) {this.startUpload();}} catch (ex) {this.debug(ex);}
}function uploadProgress(file, bytesLoaded) {// try {
//      var percent = Math.ceil((bytesLoaded / file.size) * 100);//        var progress = new FileProgress(file,  this.customSettings.upload_target);
//      progress.setProgress(percent);
//      if (percent === 100) {
//          progress.setStatus("Creating thumbnail...");
//          progress.toggleCancel(false, this);
//      } else {
//          progress.setStatus("Uploading...");
//          progress.toggleCancel(true, this);
//      }
//  } catch (ex) {
//      this.debug(ex);
//  }
}function uploadSuccess(file, serverData) {try {
//      var progress = new FileProgress(file, this.customSettings.upload_target);
//      progress.setStatus("上传成功！");
//      progress.toggleCancel(false);
//      progress.setFileValue(file.id, serverData);
//      progress.setImg("swfupload/thumbnail.aspx?id=" + serverData);showMyImage(serverData);} catch (ex) {this.debug(ex);}
}function uploadComplete(file) {this.setButtonDisabled(false);var stats = this.getStats();var status = document.getElementById("divStatus");status.innerHTML = "已上传 " + stats.successful_uploads + " 个图片,还可以上传" + parseInt(this.settings['file_upload_limit'] - stats.successful_uploads) + "个图片";
//  try {
//      /*  I want the next upload to continue automatically so I'll call startUpload here */
//      if (this.getStats().files_queued > 0) {
//          this.startUpload();
//      } else {
//          var progress = new FileProgress(file,  this.customSettings.upload_target);
//          progress.setComplete();
//          progress.setStatus("上传成功！");
//          progress.toggleCancel(false);
//      }
//  } catch (ex) {
//      this.debug(ex);
//  }
}function uploadError(file, errorCode, message) {var imageName =  "error.gif";var progress;try {switch (errorCode) {case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:try {progress = new FileProgress(file,  this.customSettings.upload_target);progress.setCancelled();progress.setStatus("Cancelled");progress.toggleCancel(false);}catch (ex1) {this.debug(ex1);}break;case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:try {progress = new FileProgress(file,  this.customSettings.upload_target);progress.setCancelled();progress.setStatus("Stopped");progress.toggleCancel(true);}catch (ex2) {this.debug(ex2);}case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:imageName = "uploadlimit.gif";break;default:alert(message);break;}addImage("images/" + imageName);} catch (ex3) {this.debug(ex3);}}function addImage(src) {var newImg = document.createElement("img");newImg.style.margin = "5px";document.getElementById("thumbnails").appendChild(newImg);if (newImg.filters) {try {newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;} catch (e) {// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';}} else {newImg.style.opacity = 0;}newImg.onload = function () {fadeIn(newImg, 0);};newImg.src =src;
}function showImage(src,file) {var newImg = document.createElement("img");newImg.style.margin = "5px";newImg.src =src;newImg.id= file.id;document.getElementById("thumbnails").appendChild(newImg);
//  if (newImg.filters) {
//      try {
//          newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
//      } catch (e) {
//          // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
//          newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
//      }
//  } else {
//      newImg.style.opacity = 0;
//  }// newImg.onload = function () {
//      fadeIn(newImg, 0);
//  };}//显示我的图片songss 2013年12月27日
function showMyImage(pid) {if (pid == "") {return;}var id = "SWFUpload_0_" + pid;this.fileProgressID = "divFileProgress" + pid;this.fileProgressWrapper = document.getElementById(this.fileProgressID);if (!this.fileProgressWrapper) {this.fileProgressWrapper = document.createElement("li");this.fileProgressWrapper.className = "progressWrapper";this.fileProgressWrapper.id = this.fileProgressID;this.fileProgressElement = document.createElement("div");this.fileProgressElement.className = "progressContainer blue";var progressCancel = document.createElement("a");progressCancel.className = "progressCancel";progressCancel.style.visibility = "visible";progressCancel.onclick = function () { delDiv("divFileProgress" + pid); };progressCancel.appendChild(document.createTextNode(" X "));var progressText = document.createElement("div");progressText.className = "progressName";progressText.appendChild(document.createTextNode(""));var progressBar = document.createElement("div");progressBar.className = "progressBarInProgress";var progressStatus = document.createElement("div");progressStatus.className = "progressBarStatus";progressStatus.innerHTML = " ";var progressImg = document.createElement("img");progressImg.style.width = "105px";progressImg.src = "swfupload/thumbnail.aspx?id=" + pid;progressImg.id = id;this.fileProgressElement.appendChild(progressCancel);this.fileProgressElement.appendChild(progressText);this.fileProgressElement.appendChild(progressStatus);this.fileProgressElement.appendChild(progressBar);this.fileProgressElement.appendChild(progressImg);this.fileProgressWrapper.appendChild(this.fileProgressElement);document.getElementById("divFileProgressContainer").appendChild(this.fileProgressWrapper);fadeIn(this.fileProgressWrapper, 0);if (progressImg.filters) {try {progressImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;} catch (e) {// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.progressImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';}} else {progressImg.style.opacity = 0;}progressImg.onload = function () {fadeIn(progressImg, 0);};} else {this.fileProgressElement = this.fileProgressWrapper.firstChild;this.fileProgressElement.childNodes[1].firstChild.nodeValue = "";}this.height = this.fileProgressWrapper.offsetHeight;$('<input />', {type: "hidden",val: pid,id: "value_" + id,name: "fileUrl"}).appendTo(this.fileProgressElement);}function delDiv(mydiv) {document.getElementById("divFileProgressContainer").removeChild(document.getElementById(mydiv));//swfu参见页面中的 swfu = new SWFUpload(settings);var stats = swfu.getStats();stats.successful_uploads--;swfu.setStats(stats);var status = document.getElementById("divStatus");status.innerHTML = "已上传 " + stats.successful_uploads + " 个图片,还可以上传" + parseInt(swfu.settings['file_upload_limit'] - stats.successful_uploads) + "个图片";
}function cancelUpload()
{var obj=document.getElementById("SWFUpload_0_0")document.getElementById("thumbnails").removeChild(obj);
}
function fadeIn(element, opacity) {var reduceOpacityBy = 5;var rate = 30; // 15 fpsif (opacity < 100) {opacity += reduceOpacityBy;if (opacity > 100) {opacity = 100;}if (element.filters) {try {element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;} catch (e) {// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';}} else {element.style.opacity = opacity / 100;}}if (opacity < 100) {setTimeout(function () {fadeIn(element, opacity);}, rate);}
}/* ******************************************* FileProgress Object*    Control object for displaying file info* ****************************************** */function FileProgress(file, targetID) {this.fileProgressID = "divFileProgress"+file.id;this.fileProgressWrapper = document.getElementById(this.fileProgressID);if (!this.fileProgressWrapper) {this.fileProgressWrapper = document.createElement("li");this.fileProgressWrapper.className = "progressWrapper";this.fileProgressWrapper.id = this.fileProgressID;this.fileProgressElement = document.createElement("div");this.fileProgressElement.className = "progressContainer";var progressCancel = document.createElement("a");progressCancel.className = "progressCancel";progressCancel.href = "#";progressCancel.style.visibility = "visible";progressCancel.appendChild(document.createTextNode(" X "));var progressText = document.createElement("div");progressText.className = "progressName";progressText.appendChild(document.createTextNode(""));var progressBar = document.createElement("div");progressBar.className = "progressBarInProgress";var progressStatus = document.createElement("div");progressStatus.className = "progressBarStatus";progressCancel.style.visibility = "hidden";progressStatus.innerHTML = " ";var progressImg = document.createElement("img");progressImg.style.width = "105px";progressImg.id=file.id;this.fileProgressElement.appendChild(progressCancel);this.fileProgressElement.appendChild(progressText);this.fileProgressElement.appendChild(progressStatus);this.fileProgressElement.appendChild(progressBar);this.fileProgressElement.appendChild(progressImg);this.fileProgressWrapper.appendChild(this.fileProgressElement);document.getElementById(targetID).appendChild(this.fileProgressWrapper);fadeIn(this.fileProgressWrapper, 0);} else {this.fileProgressElement = this.fileProgressWrapper.firstChild;this.fileProgressElement.childNodes[1].firstChild.nodeValue = "";}this.height = this.fileProgressWrapper.offsetHeight;}
FileProgress.prototype.setProgress = function (percentage) {this.fileProgressElement.className = "progressContainer green";this.fileProgressElement.childNodes[3].className = "progressBarInProgress";//this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {this.fileProgressElement.className = "progressContainer blue";this.fileProgressElement.childNodes[3].className = "progressBarComplete";this.fileProgressElement.childNodes[3].style.width = "";
};
FileProgress.prototype.setError = function () {this.fileProgressElement.className = "progressContainer red";this.fileProgressElement.childNodes[3].className = "progressBarError";this.fileProgressElement.childNodes[3].style.width = "";};
FileProgress.prototype.setCancelled = function () {this.fileProgressElement.className = "progressContainer";this.fileProgressElement.childNodes[3].className = "progressBarError";this.fileProgressElement.childNodes[3].style.width = "";};
FileProgress.prototype.setStatus = function (status) {this.fileProgressElement.childNodes[2].innerHTML = status;
};
FileProgress.prototype.setImg = function (src) {this.fileProgressElement.childNodes[4].src = src;
};FileProgress.prototype.toggleCancel = function (show, swfuploadInstance) {//this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";this.fileProgressElement.childNodes[0].style.visibility ="visible" ;if (swfuploadInstance) {var fileID = this.fileProgressID;this.fileProgressElement.childNodes[0].onclick = function () {swfuploadInstance.cancelUpload(fileID);var thumdNode=document.getElementById(fileID);thumdNode.parentNode.removeChild(thumdNode);return false;};}
};FileProgress.prototype.setFileValue = function (id, url) {$('<input />', {type: "hidden",val: url,id: "value_" + id,name: "fileUrl"}).appendTo(this.fileProgressElement);};

这个就加了个字段
Thumbnail.cs文件修改：

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;/// <summary>
/// Summary description for Thumbnail
/// </summary>
namespace WMP.Web.user
{public class Thumbnail{private string id;private byte[] originalData;private byte[] data;private byte[] centerdata;public Thumbnail(string id, byte[] originalData, byte[] data, byte[] centerdata){this.ID = id;this.OriginalData = originalData;this.Data = data;this.Centerdata = centerdata;}public string ID{get{return this.id;}set{this.id = value;}}public byte[] OriginalData{get{return this.originalData;}set{this.originalData = value;}}public byte[] Data{get{return this.data;}set{this.data = value;}}public byte[] Centerdata{get{return this.centerdata;}set{this.centerdata = value;}}}}

提交的时候记得sesion什么时候该清空。

部分提交代码：

     protected void Page_Load(object sender, EventArgs e){if (!Page.IsPostBack){Session.Remove("file_info");}}

 string[] picArr = Request.Form["fileUrl"].Split(',');foreach (Thumbnail img in thumbnails){for (int i = 0; i < picArr.Length;i++ ){if (picArr[i] == img.ID){name1 = img.ID + ".jpg";name2 = "s_" + img.ID + ".jpg";name3 = "c_" + img.ID + ".jpg";FileStream fs1 = new FileStream(UploadPath1 + img.ID + ".jpg", FileMode.Create);BinaryWriter bw1 = new BinaryWriter(fs1);bw1.Write(img.OriginalData);bw1.Close();fs1.Close();FileStream fs2 = new FileStream(UploadPath2 + "s_" + img.ID + ".jpg", FileMode.Create);BinaryWriter bw2 = new BinaryWriter(fs2);bw2.Write(img.Data);bw2.Close();fs2.Close();FileStream fs3 = new FileStream(UploadPath3 + "c_" + img.ID + ".jpg", FileMode.Create);BinaryWriter bw3 = new BinaryWriter(fs3);bw3.Write(img.Centerdata);bw3.Close();fs3.Close();if (i != 0){fileIds += ",";}imgModel.id = Guid.NewGuid().ToString().Replace("-", "");fileName = img.ID;imgModel.fileName = fileName;imgModel.filePath = "productImages/";imgModel.fileType = ".jpg";imgBll.Add(imgModel);fileIds += imgModel.id;}}}Session.Remove("file_info");

修改的页面初始化：

 var imgIds = "";function setImgId(str) {imgIds = str;}var swfu;window.onload = function () {swfu = new SWFUpload({// Backend Settingsupload_url: "swfupload/upload.aspx",post_params: {"ASPSESSID": "<%=Session.SessionID %>"},// File Upload Settingsfile_size_limit: 1024,file_types: "*.jpg;*.gif;*.png",file_types_description: "JPG Images",file_upload_limit: 4,   //限制上传文件数目file_queue_limit: 5,     //限制每次选择文件的数目，0为不限制file_queue_error_handler: fileQueueError,file_dialog_complete_handler: fileDialogComplete,upload_progress_handler: uploadProgress,upload_error_handler: uploadError,upload_success_handler: uploadSuccess,upload_complete_handler: uploadComplete,swfupload_loaded_handler: loaded,// Button settingsbutton_image_url: "swfupload/images/uploadbutt.jpg",button_placeholder_id: "spanButtonPlaceholder",button_width: 89,button_height: 28,button_text: '<span class="button"> </span>',button_text_style: '.button { font-family: Helvetica, Arial, sans-serif; font-size: 16pt; } .buttonSmall { font-size: 10pt; }',button_text_top_padding: 2,button_text_left_padding: 5,// Flash Settingsflash_url: "swfupload/swfupload/swfupload.swf", // Relative to this filecustom_settings: {upload_target: "divFileProgressContainer"},// Debug Settingsdebug: false});//再在handlers.js定义loaded函数[javascript]view plaincopyfunction loaded() {var imgArr = imgIds.split(",");for (var i = 0; i < imgArr.length; i++) {addImageFromDb(imgArr[i], this);}}//调用addImageFromDb函数 修改已上传的图片数量 并且生成已上传的图片的缩略图////src_s为生成的缩略图地址//src_b为原图地址//serverData是图片上传处理页面返回的数据 成功则以    success|缩略图地址|原图地址   这样的格式返回//初始化已经上传过的图片function addImageFromDb(id, swfu) {if (id == "") {return;}var stats = swfu.getStats();stats.successful_uploads++;swfu.setStats(stats);showMyImage(id);var status = document.getElementById("divStatus");status.innerHTML = "已上传<font color='green'>" + stats.successful_uploads + "</font>张,还可以上传<font color='red'>" + parseInt(swfu.settings['file_upload_limit'] - stats.successful_uploads) + "</font>张";}}

新增页面没什么就例子里面的

 var swfu;window.onload = function () {swfu = new SWFUpload({// Backend Settingsupload_url: "swfupload/upload.aspx",post_params: {"ASPSESSID": "<%=Session.SessionID %>"},// File Upload Settingsfile_size_limit: 1024,file_types: "*.jpg;*.gif;*.png",file_types_description: "JPG Images",file_upload_limit: 4,   //限制上传文件数目file_queue_limit: 5,     //限制每次选择文件的数目，0为不限制// Event Handler Settings - these functions as defined in Handlers.js//  The handlers are not part of SWFUpload but are part of my website and control how//  my website reacts to the SWFUpload events.file_queue_error_handler: fileQueueError,file_dialog_complete_handler: fileDialogComplete,upload_progress_handler: uploadProgress,upload_error_handler: uploadError,upload_success_handler: uploadSuccess,upload_complete_handler: uploadComplete,// Button settingsbutton_image_url: "swfupload/images/uploadbutt.jpg",button_placeholder_id: "spanButtonPlaceholder",button_width: 89,button_height: 28,button_text: '<span class="button"> </span>',button_text_style: '.button { font-family: Helvetica, Arial, sans-serif; font-size: 16pt; } .buttonSmall { font-size: 10pt; }',button_text_top_padding: 2,button_text_left_padding: 5,// Flash Settingsflash_url: "swfupload/swfupload/swfupload.swf", // Relative to this filecustom_settings: {upload_target: "divFileProgressContainer"},// Debug Settingsdebug: false});}

半夜写的，比较匆忙，给自己一个笔记。

原帖地址：http://blog.csdn.net/hateson/article/details/17976945

http://download.csdn.net/detail/hateson/6822219 源码地址

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