69 lines
2.6 KiB
C#
69 lines
2.6 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Web;
|
|
using System.IO;
|
|
|
|
/// <summary>
|
|
///DownLoadFromServer 的摘要说明
|
|
/// </summary>
|
|
public class DownLoadFromServer
|
|
{
|
|
/// <summary>
|
|
/// 从服务器下载
|
|
/// </summary>
|
|
public DownLoadFromServer()
|
|
{
|
|
//
|
|
//TODO: 在此处添加构造函数逻辑
|
|
//
|
|
}
|
|
/// <summary>
|
|
/// 下载Excele文件
|
|
/// </summary>
|
|
/// <param name="ServerPath">服务器存放Excel路径</param>
|
|
public static void DownLoad(ref string ServerPath)
|
|
{
|
|
try
|
|
{
|
|
System.IO.FileInfo file = new System.IO.FileInfo(ServerPath);
|
|
if (file.Exists == true)
|
|
{
|
|
System.Web.HttpContext.Current.Response.Clear();
|
|
System.Web.HttpContext.Current.Response.Charset = "GB2312";
|
|
System.Web.HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;
|
|
// 添加头信息，为"文件下载/另存为"对话框指定默认文件名
|
|
System.Web.HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + System.Web.HttpContext.Current.Server.UrlEncode("Sheet1.xlsx"));
|
|
// 添加头信息，指定文件大小，让浏览器能够显示下载进度
|
|
System.Web.HttpContext.Current.Response.AddHeader("Content-Length", file.Length.ToString());
|
|
// 指定返回的是一个不能被客户端读取的流，必须被下载
|
|
System.Web.HttpContext.Current.Response.ContentType = "application/ms-excel";
|
|
// 把文件流发送到客户端
|
|
System.Web.HttpContext.Current.Response.WriteFile(file.FullName);
|
|
// 停止页面的执行
|
|
//Response.End();
|
|
System.Web.HttpContext.Current.Response.Flush();
|
|
//System.Web.HttpContext.Current.Response.End();
|
|
HttpContext.Current.ApplicationInstance.CompleteRequest();
|
|
}
|
|
else
|
|
{
|
|
System.Web.HttpContext.Current.Response.Write("<script>alert('请尽快与管理员联系.')</script>");
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
System.Web.HttpContext.Current.Response.Write("<script>alert('系统出现以下错误://n" + ex.Message + "!//n请尽快与管理员联系.')</script>");
|
|
}
|
|
}
|
|
|
|
public static void DeleteExcel(ref string ServerPath)
|
|
{
|
|
System.IO.FileInfo file = new System.IO.FileInfo(ServerPath);
|
|
if (file.Exists == true)
|
|
{
|
|
File.Delete(ServerPath);
|
|
}
|
|
}
|
|
|
|
} |