init: 山西治金技师学院MES管理系统首次入库

submit/MESDownloadFile.ashx

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+<%@ WebHandler Language="C#" Class="DownloadHandler" %>
+
+using System;
+using System.Web;
+using System.Data;
+using System.Collections.Generic;
+using System.Linq;
+//using BizDataAccess;
+using System.IO;
+using System.Net;
+using System.Web.Services;
+using System.Text;
+
+
+public class DownloadHandler : IHttpHandler
+{
+    public void ProcessRequest(HttpContext context)
+    {
+        context.Response.ContentType = "text/plain";
+        string filePath = "../webpage/part";
+        filePath = HttpContext.Current.Server.MapPath(filePath);
+        string id = HttpContext.Current.Request["id"];
+        filePath = filePath + "/" + id;
+        string name = HttpContext.Current.Request["name"];
+        try
+        {
+            System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open);
+            byte[] bytes = new byte[(int)fs.Length];
+            fs.Read(bytes, 0, bytes.Length);
+            fs.Close();
+            HttpContext.Current.Response.ContentType = "application/octet-stream";
+            //HttpContext.Current.Response.ContentType = getContentType(extension);  
+            //通知浏览器下载文件而不是打开  
+            HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(name, System.Text.Encoding.UTF8));
+            HttpContext.Current.Response.BinaryWrite(bytes);
+            HttpContext.Current.Response.Flush();
+            HttpContext.Current.Response.End();
+            return;
+        }
+        catch (Exception ex)
+        {
+            return;
+        }
+    }
+    public bool IsReusable
+    {
+        get
+        {
+            return false;
+        }
+    }
+}