<!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> <title></title> </head> <body> <img src="waterImg.ashx?imgName=1.jpg" /> <img src="1.jpg" /> <a href="GetFileDownload.ashx?fn=googlelogo.jpg">点击下载！</a>hellowrold!123456789988 <form action="FileUp.ashx" method="post" enctype="multipart/form-data"> <input type="file" name="fileU" /> <input type="file" name="fileU2" /> <input type="submit" value="上传" /> <input type="hidden" name="isPostBack" value="1"/> </form> </body> </html>
上为HTML代码：
下为ashx代码：
1 <%@ WebHandler Language="C#" Class="FileUp" %> 2 3 using System; 4 using System.Web; 5 6 public class FileUp : IHttpHandler { 7 8 string strHtml = "<html><head></head></html>"; 9 string modelPath = "model.html"; 10 11 public void ProcessRequest (HttpContext context) { 12 System.Web.UI.WebControls.Button btn = new System.Web.UI.WebControls.Button(); 13 14 //尝试检查浏览器是否传递过来一个叫 isPostBack 的控件的值 15 string isPostback = context.Request.Form["isPostBack"]; 16 17 if (!string.IsNullOrEmpty(isPostback))//上传提交 18 { 19 //context.Request.Files -- 这里面有上传上来的文件数据(客户端用户选择了几个文件，那么这个Files里就有几个元素) 20 if (context.Request.Files.Count > 0) 21 { 22 for (int i = 0; i < context.Request.Files.Count; i++) 23 { 24 //获得当前循环到的文件对象 25 HttpPostedFile hPostedFile = context.Request.Files[i]; 26 if (hPostedFile.FileName != "") 27 { 28 //C:Documents and SettingsAdministrator.ICBCOA-6E96E6BE桌面1.jpg 29 string filePath = hPostedFile.FileName; 30 string fileName = System.IO.Path.GetFileName(filePath);//1.jpg 31 //G:WebTwoHandlerupload1.jpg 32 string fileServerPath = context.Server.MapPath("upload\" + fileName); 33 hPostedFile.SaveAs(fileServerPath);//保存在服务器指定的路径上 34 context.Response.Write("上传成功！：）" + hPostedFile.FileName); 35 } 36 } 37 } 38 } 39 else//如果是通过url访问，则读取HTML模板并输出给浏览器(用户就可以看见文件选择框和按钮了) 40 { 41 modelPath = context.Server.MapPath(modelPath);//获得模板服务器物理路径 42 strHtml = System.IO.File.ReadAllText(modelPath);//读取HTML代码 43 context.Response.Write(strHtml); 44 } 45 } 46 47 public bool IsReusable { 48 get { 49 return false; 50 } 51 } 52 53 }