C#中实现文件下载的四种方法总结

using System;  
using System.Data;  
using System.Configuration;  
using System.Web;  
using System.Web.Security;  
using System.Web.UI;  
using System.Web.UI.WebControls;  
using System.Web.UI.WebControls.WebParts;  
using System.Web.UI.HtmlControls;  
using System.IO;  
 
public partial class _Default : System.Web.UI.Page  
{  
protected void Page_Load(object sender, EventArgs e)  
{  
 
} 

//TransmitFile实现下载
 

protected void Button1_Click(object sender, EventArgs e)  
{  
 
 
Response.ContentType = "application/x-zip-compressed";  
Response.AddHeader("Content-Disposition", "attachment;filename=z.zip");  
string filename = Server.MapPath("DownLoad/z.zip");  
Response.TransmitFile(filename);  
}  

//WriteFile实现下载
 

protected void Button2_Click(object sender, EventArgs e)  
{  
 
 
string fileName ="asd.txt";//客户端保存的文件名  
string filePath=Server.MapPath("DownLoad/aaa.txt");//路径  
 
FileInfo fileInfo = new FileInfo(filePath);  
Response.Clear();  
Response.ClearContent();  
Response.ClearHeaders();  
Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);  
Response.AddHeader("Content-Length", fileInfo.Length.ToString());  
Response.AddHeader(
                        
                                                

                            

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                                Last updated：2010-03-10
                            
                        
                    
                                

	

		
		
mikebai
		
This person is a lazy dog and has left nothing
	
	

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