为什么我的文件下载代码会生成损坏的PDF? [英] Why does my code to download files produce corrupted PDFs?
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问题描述
使用以下代码下载PDF文件时出现问题:
I have a problem when downloading PDF files with the following code:
WebClient client = new WebClient();
client.DownloadFile(remoteFilename, localFilename);
其他文件已成功下载,但是当我下载并保存PDF文档时,当我尝试打开它时,它显示了文档修复错误.
Whereas other files are downloaded successfully, when I download and save a PDF document it shows a document repaired error when I try to open it.
推荐答案
检查此方法,希望对您有帮助
check this method , hope that helps
public static void DownloadFile(HttpResponse response,string fileRelativePath)
{
try
{
string contentType = "";
//Get the physical path to the file.
string FilePath = HttpContext.Current.Server.MapPath(fileRelativePath);
string fileExt = Path.GetExtension(fileRelativePath).Split('.')[1].ToLower();
if (fileExt == "pdf")
{
//Set the appropriate ContentType.
contentType = "Application/pdf";
}
//Set the appropriate ContentType.
response.ContentType = contentType;
response.AppendHeader("content-disposition", "attachment; filename=" + (new FileInfo(fileRelativePath)).Name);
//Write the file directly to the HTTP content output stream.
response.WriteFile(FilePath);
response.End();
}
catch
{
//To Do
}
}
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