<%@ webhandler Language="C#" class="Upload" %>
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/**
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* KindEditor ASP.NET
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*
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* 本ASP.NET程序是演示程序，建议不要直接在实际项目中使用。
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* 如果您确定直接使用本程序，使用之前请仔细确认相关安全设置。
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*
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*/
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using System;
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using System.Collections;
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using System.Web;
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using System.IO;
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using System.Globalization;
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using System.Configuration;
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using LitJson;
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using Newtonsoft.Json;
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using HH.WMS.Common;
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using System.Text.RegularExpressions;
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public class Upload : IHttpHandler
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{
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private HttpContext context;
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public void ProcessRequest(HttpContext context)
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{
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String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);
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//文件保存目录路径
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//String savePath = "../attached/";
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String savePath = "/public/ContentPics/";
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//文件保存目录URL
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//String saveUrl = aspxUrl + "../attached/";
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// String saveUrl = "http://fc.joyinmoney.com:868/public/ContentPics/";//http://192.168.1.169:81/AdminUI/index.aspx
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//定义允许上传的文件扩展名
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Hashtable extTable = new Hashtable();
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extTable.Add("image", "gif,jpg,jpeg,png,bmp");
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extTable.Add("flash", "mp4");
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extTable.Add("media", "mp4");
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extTable.Add("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2");
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//最大文件大小
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int maxSize = 30000000;
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this.context = context;
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HttpPostedFile imgFile = context.Request.Files["imgFile"];
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if (imgFile == null)
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{
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showError("请选择文件。");
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}
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String dirPath = context.Server.MapPath(savePath);
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if (!Directory.Exists(dirPath))
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{
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showError("上传目录不存在。");
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}
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String dirName = context.Request.QueryString["dir"];
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if (String.IsNullOrEmpty(dirName)) {
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dirName = "image";
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}
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if (!extTable.ContainsKey(dirName)) {
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showError("目录名不正确。");
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}
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String fileName = imgFile.FileName;
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String fileExt = Path.GetExtension(fileName).ToLower();
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if (imgFile.InputStream == null || imgFile.InputStream.Length > maxSize)
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{
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showError("上传文件大小超过限制。");
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}
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if (String.IsNullOrEmpty(fileExt) || Array.IndexOf(((String)extTable[dirName]).Split(','), fileExt.Substring(1).ToLower()) == -1)
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{
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showError("上传文件扩展名是不允许的扩展名。\n只允许" + ((String)extTable[dirName]) + "格式。");
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}
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//创建文件夹
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dirPath += dirName + "/";//D:\\项目文档\\配件电子商务\\配件商城-2015-08-07\\配件商城-生成静态页\\HanHe.WebUI\\public\\ContentPics\\image/
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savePath += dirName + "/";///public/ContentPics/image/
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if (!Directory.Exists(dirPath)) {
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Directory.CreateDirectory(dirPath);
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}
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String ymd = DateTime.Now.ToString("yyyyMMdd", DateTimeFormatInfo.InvariantInfo);//20150826
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dirPath += ymd + "/";//D:\\项目文档\\配件电子商务\\配件商城-2015-08-07\\配件商城-生成静态页\\HanHe.WebUI\\public\\ContentPics\\image/20150826/
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savePath += ymd + "/";///public/ContentPics/image/20150826/
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if (!Directory.Exists(dirPath)) {
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Directory.CreateDirectory(dirPath);
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}
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String newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + fileExt;//20150826090252_0834.jpg
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String filePath = dirPath + newFileName;//D:\\项目文档\\配件电子商务\\配件商城-2015-08-07\\配件商城-生成静态页\\HanHe.WebUI\\public\\ContentPics\\image/20150826/20150826090252_0834.jpg
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//如果文件为图片，添加水印
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//如果文件为图片，添加水印
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if (".gif.jpg.jpeg.png.bmp".IndexOf(fileExt) > -1)
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{
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//获取水印图
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string backgroundUrl = context.Request.PhysicalApplicationPath.Replace("\\", "/") + @"Public/WaterMark/";
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if (Directory.Exists(backgroundUrl))
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{
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DirectoryInfo TheFolder = new DirectoryInfo(backgroundUrl);
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if (TheFolder.GetFiles().Length > 0)
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{
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backgroundUrl = backgroundUrl + TheFolder.GetFiles()[0].Name;
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//给原图添加水印
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//System.Drawing.Image img = CombinImage(backgroundUrl, System.Drawing.Image.FromStream(imgFile.InputStream));
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//img.Save(filePath);
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AddWaterPic(System.Drawing.Image.FromStream(imgFile.InputStream), backgroundUrl, filePath);
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}
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}
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}
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else
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{
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imgFile.SaveAs(filePath);
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}
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String fileUrl = savePath + newFileName;///public/ContentPics/image/20150826/20150826090252_0834.jpg
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Hashtable hash = new Hashtable();
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hash["error"] = 0;
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hash["url"] = fileUrl;
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context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
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context.Response.Write(JsonMapper.ToJson(hash));
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context.Response.End();
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}
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#region 字符串提取
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public static string RegexSub(string str, string begin, string end)
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{
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if (string.IsNullOrEmpty(str))
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{
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return "";
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}
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str = str.Replace(begin, "△");
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if (end == "")
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{
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str = str + "▲";
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}
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else
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{
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str = str.Replace(end, "▲");
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}
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return RegexSub(str, "△([^▲]+)▲");
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}
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public static string RegexSub(string str, string zhengze)
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{
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if (str == null)
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{
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return "";
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}
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MatchCollection matchs = new Regex(zhengze, RegexOptions.Singleline | RegexOptions.IgnoreCase).Matches(str);
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return ((matchs.Count == 0) ? "" : matchs[0].Groups[1].Value);
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}
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#endregion
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#region 添加水印
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/// <summary>
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/// 添加水印
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/// </summary>
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/// <param name="backgroundUrl">水印图片绝对路径</param>
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/// <param name="img">原图Imge对象</param>
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/// <returns></returns>
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private System.Drawing.Image CombinImage(string backgroundUrl, System.Drawing.Image img)
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{
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if (Directory.Exists(backgroundUrl))
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{
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DirectoryInfo TheFolder = new DirectoryInfo(backgroundUrl);
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if (TheFolder.GetFiles().Length > 0)
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{
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backgroundUrl = backgroundUrl + TheFolder.GetFiles()[0].Name;
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System.Drawing.Image imgBack = System.Drawing.Image.FromFile(backgroundUrl); //相框图片
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System.Drawing.Bitmap pbitmap = new System.Drawing.Bitmap(img);
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//将白色替换成透明
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pbitmap.MakeTransparent(System.Drawing.Color.White);
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img = pbitmap;
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//从指定的System.Drawing.Image创建新的System.Drawing.Graphics
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System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(imgBack);
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g.DrawImage(imgBack, 0, 0, imgBack.Width, imgBack.Height); // g.DrawImage(imgBack, 0, 0, 相框宽, 相框高);
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g.DrawImage(img, 0, 0, img.Width, img.Height);
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GC.Collect();
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return imgBack;
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}
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else
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{
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return img;
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}
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}
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else
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{
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return img;
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}
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}
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#endregion
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/// <summary>
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/// 在图片上添加图片水印
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/// </summary>
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/// <param name="path">原服务器上的图片路径</param>
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/// <param name="syPicPath">水印图片的路径</param>
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/// <param name="waterPicPath">生成的水印图片存放路径</param>
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public static void AddWaterPic(System.Drawing.Image img, string syPicPath, string waterPicPath)
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{
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System.Drawing.Image image = img;
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System.Drawing.Image waterImage = System.Drawing.Image.FromFile(syPicPath);
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System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(image);
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graphic.DrawImage(waterImage, new System.Drawing.Rectangle((image.Width - waterImage.Width) / 2, (image.Height - waterImage.Height) / 2, waterImage.Width, waterImage.Height), 0, 0, waterImage.Width, waterImage.Height, System.Drawing.GraphicsUnit.Pixel);
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graphic.Dispose();
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image.Save(waterPicPath);
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image.Dispose();
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}
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private void showError(string message)
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{
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Hashtable hash = new Hashtable();
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hash["error"] = 1;
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hash["message"] = message;
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context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
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context.Response.Write(JsonMapper.ToJson(hash));
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context.Response.End();
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}
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public bool IsReusable
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{
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get
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{
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return true;
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}
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}
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}
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