C#兼容各大浏览器的文件下载实例详解

本文给大家分享一段实例代码关于css实现文件下载功能，需要的的朋友参考下吧

1、css代码

public void DownFile(string filePath ,string fileName ){ // filePath 文件路径 例如：/File/记录.xlsx  // fileName 文件名称 例如：记录.xlsx （要后缀哦）Encoding encoding; // 申明编码string outputFileName; // 输出名<strong>本文来源gaodaima#com搞(代@码$网6</strong>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); //获取上传文件路径FileStream fs = new FileStream(absoluFilePath, FileMode.Open);byte[] bytes = new byte[(int)fs.Length];fs.Read(bytes, 0, bytes.Length);fs.Close(); //关闭流，释放资源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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