How C # is compatible with file downloads of major browsers
This article mainly introduces how C# is compatible with the file downloads of major browsers, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article.
1. Css code
Public void DownFile (string filePath, string fileName) {/ / filePath file path for example: / File/ record .xlsx / / fileName file name for example: record .xlsx (to suffix) Encoding encoding; / / declare coding string outputFileName; / / output name Debug.Assert (HttpContext.ApplicationInstance.Request.UserAgent! = null, "HttpContext.ApplicationInstance.Request.UserAgent! = null"); string browser = HttpContext.ApplicationInstance.Request.UserAgent.ToUpper () / Microsoft browser and ie filter if (browser.Contains ("MS") & & browser.Contains ("IE")) {outputFileName = HttpUtility.UrlEncode (filePath); encoding = Encoding.Default;} / / Firefox else if (browser.Contains ("FIREFOX")) {outputFileName = fileName;encoding = Encoding.GetEncoding ("GB2312");} else {outputFileName = HttpUtility.UrlEncode (fileName); encoding = Encoding.Default;} string absoluFilePath = Server.MapPath (filePath) / / get the upload file path FileStream fs = new FileStream (absoluFilePath, FileMode.Open); byte [] bytes = new byte [(int) fs.Length]; fs.Read (bytes, 0, bytes.Length); fs.Close (); / / close the stream and release the resource 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 code
Just write an a tag on the front-end HTML: such as file download
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