Asp.net implements file download function
This article mainly introduces Asp.net's use of general processing programs to implement file download functions. It is very good and has reference value. Friends in need can refer to it
First there is an html page, and the page has an Link, click the link to pop up file download/save (similar to Thunder download link)
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>文件下载</title> <meta charset="utf-8" /> </head> <body> <!--该方式不行,1:如果访问的是类似文本等浏览器可以处理的文件,则是浏览器打开显示的方式,并不是文件下载;2:如果访问的是App_Data文件夹里的文件,由于.net的机制不允许访问App_Data文件夹资源,所以会报“请求筛选模块被配置为拒绝包含 hiddenSegment 节的 URL 中的路径。”--> <a href="App_Data/readme.txt" rel="external nofollow" >下载readme.txt文件</a> <br /> <a href="DownloadFileHandler.ashx" rel="external nofollow" >下载readme.txt文件</a> </body> </html>
The code of the general processing program is as follows
using System.IO; using System.Web; namespace Zhong.Web { /// <summary> /// DownloadFileHandler 的摘要说明 /// </summary> public class DownloadFileHandler : IHttpHandler { public void ProcessRequest(HttpContext context) { string filePath = context.Server.MapPath("~/App_Data/readme.txt"); FileStream fs = new FileStream(filePath, FileMode.Open); byte[] bytes = new byte[fs.Length]; fs.Read(bytes, 0, bytes.Length); fs.Dispose(); context.Response.ContentType = "application/octet-stream"; context.Response.AddHeader("Content-Disposition", "attachment; filename=readme.txt"); context.Response.BinaryWrite(bytes); context.Response.Flush(); //大文件下载的解决方案 //context.Response.ContentType = "application/x-zip-compressed"; //context.Response.AddHeader("Content-Disposition", "attachment;filename=z.zip"); //string filename = Server.MapPath("~/App_Data/move.zip"); //context.Response.TransmitFile(filename); } public bool IsReusable { get { return false; } } } }
Click the first link to access, the display is as follows:
Click the second link to access, download the file:
Since I have already tested it once before, I named it readme(1).txt
when downloading this time.The above is the detailed content of Asp.net implements file download function. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

There will be many AI creation functions in the Doubao app, so what functions does the Doubao app have? Users can use this software to create paintings, chat with AI, generate articles for users, help everyone search for songs, etc. This function introduction of the Doubao app can tell you the specific operation method. The specific content is below, so take a look! What functions does the Doubao app have? Answer: You can draw, chat, write articles, and find songs. Function introduction: 1. Question query: You can use AI to find answers to questions faster, and you can ask any kind of questions. 2. Picture generation: AI can be used to create different pictures for everyone. You only need to tell everyone the general requirements. 3. AI chat: can create an AI that can chat for users,

Both vivox100s and x100 mobile phones are representative models in vivo's mobile phone product line. They respectively represent vivo's high-end technology level in different time periods. Therefore, the two mobile phones have certain differences in design, performance and functions. This article will conduct a detailed comparison between these two mobile phones in terms of performance comparison and function analysis to help consumers better choose the mobile phone that suits them. First, let’s look at the performance comparison between vivox100s and x100. vivox100s is equipped with the latest

Python provides the following options to open downloaded files: open() function: open the file using the specified path and mode (such as 'r', 'w', 'a'). Requests library: Use its download() method to automatically assign a name and open the file directly. Pathlib library: Use write_bytes() and read_text() methods to write and read file contents.

JPA and MyBatis: Function and Performance Comparative Analysis Introduction: In Java development, the persistence framework plays a very important role. Common persistence frameworks include JPA (JavaPersistenceAPI) and MyBatis. This article will conduct a comparative analysis of the functions and performance of the two frameworks and provide specific code examples. 1. Function comparison: JPA: JPA is part of JavaEE and provides an object-oriented data persistence solution. It is passed annotation or X

"Exploring Discuz: Definition, Functions and Code Examples" With the rapid development of the Internet, community forums have become an important platform for people to obtain information and exchange opinions. Among the many community forum systems, Discuz, as a well-known open source forum software in China, is favored by the majority of website developers and administrators. So, what is Discuz? What functions does it have, and how can it help our website? This article will introduce Discuz in detail and attach specific code examples to help readers learn more about it.

With the rapid development of the Internet, the concept of self-media has become deeply rooted in people's hearts. So, what exactly is self-media? What are its main features and functions? Next, we will explore these issues one by one. 1. What exactly is self-media? We-media, as the name suggests, means you are the media. It refers to an information carrier through which individuals or teams can independently create, edit, publish and disseminate content through the Internet platform. Different from traditional media, such as newspapers, television, radio, etc., self-media is more interactive and personalized, allowing everyone to become a producer and disseminator of information. 2. What are the main features and functions of self-media? 1. Low threshold: The rise of self-media has lowered the threshold for entering the media industry. Cumbersome equipment and professional teams are no longer needed.

PHP Tips: Quickly implement the function of returning to the previous page. In web development, we often encounter the need to implement the function of returning to the previous page. Such operations can improve the user experience and make it easier for users to navigate between web pages. In PHP, we can achieve this function through some simple code. This article will introduce how to quickly implement the function of returning to the previous page and provide specific PHP code examples. In PHP, we can use $_SERVER['HTTP_REFERER'] to get the URL of the previous page

What does a Bluetooth adapter do? With the continuous development of science and technology, wireless communication technology has also been rapidly developed and popularized. Among them, Bluetooth technology, as a short-distance wireless communication technology, is widely used in data transmission and connection between various devices. The Bluetooth adapter plays a vital role as an important device that supports Bluetooth communication. A Bluetooth adapter is a device that can turn a non-Bluetooth device into a device that supports Bluetooth communication. It realizes wireless connection and data transmission between devices by converting wireless signals into Bluetooth signals. Bluetooth adapter
