使用响应.传输文件下载文件,还包含了页面的源代码
本文关键字:包含 源代码 响应 传输 文件下载 文件 | 更新日期: 2023-09-27 18:18:25
下面是违规代码,我下载了一个csv文件,但是它将页面源代码附加到底部,关于如何防止这种情况的任何想法?
var priceList = Test();
const string downloadName = "PriceList.csv";
var fs = new FileStream(downloadName, FileMode.Create);
var csv = new CsvHelper.CsvHelper(fs);
csv.Writer.WriteRecords(priceList);
Response.ClearContent();
//not sure what the correct content type is. This is probally wrong
Response.ContentType = "application/xls";
//Setting size is optional
Response.AddHeader("Content-Disposition",
"attachment; filename=" + downloadName + "; size=" + fs.Length.ToString());
var fn = fs.Name;
fs.Close();
loadingImage.Visible = false;
Response.TransmitFile(fn);
Response.Flush();
Call Response.End()
.
还有,为什么保存文件只是为了重新发送呢?这充其量是一种浪费,但如果您要重用该名称,那么如果两个人同时访问此页面,就会出现竞争条件。而不是发送文件,使用var csv = new CsvHelper.CsvHelper(Response.OutputStream)
,所以你直接写到浏览器(你必须先发送你的头)。
CSV文件的内容类型为text/csv
在刷新流或尝试强制下载后添加Response.End()
方法
var priceList = Test();
const string downloadName = "PriceList.csv";
var fs = new FileStream(downloadName, FileMode.Create);
var csv = new CsvHelper.CsvHelper(fs);
csv.Writer.WriteRecords(priceList);
Response.ClearContent();
//not sure what the correct content type is. This is probally wrong
Response.ContentType = "application/xls";
//Setting size is optional
Response.AddHeader("Content-Disposition",
"attachment; filename=" + downloadName + "; size=" + fs.Length.ToString());
var fn = fs.Name;
fs.Close();
loadingImage.Visible = false;
Response.TransmitFile(fn);
Response.Flush();
Response.End();