55 lines
2.1 KiB
C#
55 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Web;
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namespace Song.Site.Download
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{
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public class GetExecFile
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{
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/// <summary>
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/// 获取文件
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/// </summary>
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/// <returns></returns>
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public static string File()
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{
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HttpContext context = System.Web.HttpContext.Current;
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string pagename = WeiSha.Common.Request.Page.Name;
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string path = context.Server.MapPath("~/Download/" + pagename + "/");
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System.IO.DirectoryInfo di = new System.IO.DirectoryInfo(path);
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string file = string.Empty;
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System.IO.FileInfo[] files = di.GetFiles("*.exe");
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if (files.Length > 0) file = files[0].FullName;
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return file;
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}
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/// <summary>
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/// 将要下载的文件写入流
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/// </summary>
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/// <param name="file">文件物理路径</param>
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public static void Write(string file)
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{
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HttpContext context = System.Web.HttpContext.Current;
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if (string.IsNullOrWhiteSpace(file))
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{
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context.Response.Write("应用程序不存在！");
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}
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else
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{
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string pagename = WeiSha.Common.Request.Page.Name;
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//下载
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context.Response.Clear();
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context.Response.ClearContent();
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context.Response.ClearHeaders();
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context.Response.AddHeader("Content-Disposition", "attachment;filename=" + pagename + ".exe");
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System.IO.FileInfo fi = new System.IO.FileInfo(file);
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context.Response.AddHeader("Content-Length", fi.Length.ToString());
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context.Response.AddHeader("Content-Transfer-Encoding", "binary");
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context.Response.ContentType = "application/octet-stream";
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context.Response.ContentEncoding = System.Text.Encoding.UTF8;
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context.Response.WriteFile(file);
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context.Response.Flush();
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}
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context.Response.End();
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}
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}
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} |