C#兼容各大浏览器的文件下载实例详解【C#.Net教程】,c#,文件下载

本文给人人分享一段实例代码关于css完成文件下载功用，须要的的朋侪参考下吧

1、css代码

public void DownFile(string filePath ,string fileName )
{
 // filePath 文件途径 比方：/File/纪录.xlsx 
 // fileName 文件名称 比方：纪录.xlsx （要后缀哦）
Encoding encoding; // 说明编码
string outputFileName; // 输出名字
Debug.Assert(HttpContext.ApplicationInstance.Request.UserAgent != null, "HttpContext.ApplicationInstance.Request.UserAgent != null");
string browser = HttpContext.ApplicationInstance.Request.UserAgent.ToUpper();
// 微软的浏览器和ie过滤
if (browser.Contains("MS") && browser.Contains("IE"))
{
outputFileName = HttpUtility.UrlEncode(filePath);
encoding = Encoding.Default;
}
//火狐
else if (browser.Contains("FIREFOX"))
{
outputFileName = fileName;
encoding = Encoding.GetEncoding("GB2312");
}
else
{
outputFileName = HttpUtility.UrlEncode(fileName);
encoding = Encoding.Default;
}
string absoluFilePath = Server.MapPath(filePath); //猎取上传文件途径
FileStream fs = new FileStream(absoluFilePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close(); //封闭流，开释资本
HttpContext.ApplicationInstance.Response.Clear();
HttpContext.ApplicationInstance.Response.Buffer = true;
HttpContext.ApplicationInstance.Response.ContentEncoding = encoding;
HttpContext.ApplicationInstance.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", string.IsNullOrEmpty(outputFileName) ? DateTime.Now.ToString("yyyyMMddHHmmssfff") : outputFileName));
Response.BinaryWrite(bytes);
Response.Flush();
HttpContext.ApplicationInstance.Response.End();
}

2、html代码

前端HTML 写一个a标签就好：如 <a href='DownFile' target='_blank'>文件下载</a>

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