<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="jqUploadify._Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>无标题页</title> <link href="scripts/uploadify.css" rel="stylesheet" type="text/css" /> <link href="scripts/default.css" rel="stylesheet" type="text/css" /> <script src="scripts/jquery-1.7.2.min.js" type="text/javascript"></script> <script src="scripts/swfobject.js" type="text/javascript"></script> <script src="scripts/jquery.uploadify.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function(){ $("#file_upload").uploadify({ //开启调试 'debug' : false, //是否自动上传 'auto':false, 'buttonText':'选择照片', //flash 'swf': "scripts/uploadify.swf", //文件选择后的容器ID 'queueID':'uploadfileQueue', 'uploader':'scripts/upload.ashx', 'width':'75', 'height':'24', 'multi':false, 'fileTypeDesc':'支持的格式：', 'fileTypeExts':'*.jpg;*.jpge;*.gif;*.png', 'fileSizeLimit':'1MB', 'removeTimeout':1, //返回一个错误，选择文件的时候触发 'onSelectError':function(file, errorCode, errorMsg){ switch(errorCode) { case -100: alert("上传的文件数量已经超出系统限制的"+$('#file_upload').uploadify('settings','queueSizeLimit')+"个文件！"); break; case -110: alert("文件 ["+file.name+"] 大小超出系统限制的"+$('#file_upload').uploadify('settings','fileSizeLimit')+"大小！"); break; case -120: alert("文件 ["+file.name+"] 大小异常！"); break; case -130: alert("文件 ["+file.name+"] 类型不正确！"); break; } }, //检测FLASH失败调用 'onFallback':function(){ alert("您未安装FLASH控件，无法上传图片！请安装FLASH控件后再试。"); }, //上传到服务器，服务器返回相应信息到data里 'onUploadSuccess':function(file, data, response){ //alert(data); } }); }); function doUplaod(){ $('#file_upload').uploadify('upload','*'); } function closeLoad(){ $('#file_upload').uploadify('cancel','*'); } </script> </head> <body> <table width="704" border="0" align="center" cellpadding="0" cellspacing="0" id="__01"> <tr> <td align="center" valign="middle"> <div id="uploadfileQueue" style="padding: 3px;"> </div> <div id="file_upload"> </div> </td> </tr> <tr> <td height="50" align="center" valign="middle"> <img alt="" src="images/BeginUpload.gif" width="77" height="23" onclick="doUplaod()" style="cursor: hand" /> <img alt="" src="images/CancelUpload.gif" width="77" height="23" onclick="closeLoad()" style="cursor: hand" /> </td> </tr> </table> </body> </html>
using System; using System.Collections; using System.Data; using System.Linq; using System.Web; using System.Web.Services; using System.Web.Services.Protocols; using System.Xml.Linq; using System.Web.SessionState; using System.IO; namespace jqUploadify.scripts { /// <summary> /// $codebehindclassname$ 的摘要说明 /// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class upload : IHttpHandler, IRequiresSessionState { public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; context.Response.Charset = "utf-8"; HttpPostedFile file = context.Request.Files["Filedata"]; string uploadPath = context.Server.MapPath("..\uploads\"); if (file != null) { if (!Directory.Exists(uploadPath)) { Directory.CreateDirectory(uploadPath); } file.SaveAs(uploadPath + file.FileName); //生成缩略图 MakeThumbnail(uploadPath + file.FileName, uploadPath + "\s\" + file.FileName, 80, 80); } } private void MakeThumbnail(string sourcePath, string newPath, int width, int height) { System.Drawing.Image ig = System.Drawing.Image.FromFile(sourcePath); int towidth = width; int toheight = height; int x = 0; int y = 0; int ow = ig.Width; int oh = ig.Height; if ((double)ig.Width / (double)ig.Height > (double)towidth / (double)toheight) { oh = ig.Height; ow = ig.Height * towidth / toheight; y = 0; x = (ig.Width - ow) / 2; } else { ow = ig.Width; oh = ig.Width * height / towidth; x = 0; y = (ig.Height - oh) / 2; } System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight); System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap); g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; g.Clear(System.Drawing.Color.Transparent); g.DrawImage(ig, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel); try { bitmap.Save(newPath, System.Drawing.Imaging.ImageFormat.Jpeg); } catch (Exception ex) { throw ex; } finally { ig.Dispose(); bitmap.Dispose(); g.Dispose(); } } public bool IsReusable { get { return false; } } } }