C# 重复的标题并在错误的路径中调用文件
我正在尝试通过单击链接从我的网页创建并显示pdf。但是当系统必须显示出它出了问题时 当我使用这个命令时 返回新的FileStreamResult(fileStream,“application/pdf”) 它显示一个空的pdf文件: ///C:/Users/Me/Downloads/C--Apps-MyWebSolution-MyWeb-Documenten-MyList_198721.pdf 它另存为:C:\Apps\MyWebSolution\MyWeb\Documenten\MyList_198721%20.pdf 当我使用这个命令时: 返回文件(fileStream,“application/pdf”,fullFileName) 然后我收到一条错误消息: 错误\u响应\u标题\u多个\u内容\u处置 我做错了什么C# 重复的标题并在错误的路径中调用文件,c#,asp.net-mvc-4,C#,Asp.net Mvc 4,我正在尝试通过单击链接从我的网页创建并显示pdf。但是当系统必须显示出它出了问题时 当我使用这个命令时 返回新的FileStreamResult(fileStream,“application/pdf”) 它显示一个空的pdf文件: ///C:/Users/Me/Downloads/C--Apps-MyWebSolution-MyWeb-Documenten-MyList_198721.pdf 它另存为:C:\Apps\MyWebSolution\MyWeb\Documenten\MyList_
public FileStreamResult PDFGenerator(string html, string fileName)
{
string fullFileName = Server.MapPath("~/Documenten/" + fileName + ".pdf");
Stream fileStream = CreatePDF(html, fullFileName);
HttpContext.Response.AddHeader("content-disposition", "attachment; filename=" + fullFileName);
//return new FileStreamResult(fileStream, "application/pdf");
return File(fileStream, "application/pdf", fullFileName);
}
如果我必须发布更多。我会的。但我认为不需要它。最有可能需要
。查找流到开头(通常在写入文件时位置
指向结尾/最后写入的位置)
第二个问题有点不言自明,因为您需要手动和通过文件(…)
设置“内容处置”标题两次。您最有可能需要.Seek
流到开头(通常在写入文件时位置
指向结尾/最后写入的位置)
第二个问题有点不言自明,因为您需要手动和通过文件(…)
设置“内容处置”标题两次。您最有可能需要.Seek
流到开头(通常在写入文件时位置
指向结尾/最后写入的位置)
第二个问题有点不言自明,因为您需要手动和通过文件(…)
设置“内容处置”标题两次。您最有可能需要.Seek
流到开头(通常在写入文件时位置
指向结尾/最后写入的位置)
第二个问题在某种程度上是不言自明的,因为您可以手动和通过文件(…)
设置两次“内容处置”标题,这有三件事:
您是否尝试删除(或注释掉)在响应中添加标题的行?返回文件(…)可能会为您添加头,导致头被指定两次,这将导致您看到的错误
文件(…)应该指定filename.pdf
,而不是文件的整个路径
请注意,文件名不应包含任何空格或任何非字母数字字符。这是建议反对的
三件事:
您是否尝试删除(或注释掉)在响应中添加标题的行?返回文件(…)可能会为您添加头,导致头被指定两次,这将导致您看到的错误
文件(…)应该指定filename.pdf
,而不是文件的整个路径
请注意,文件名不应包含任何空格或任何非字母数字字符。这是建议反对的
三件事:
您是否尝试删除(或注释掉)在响应中添加标题的行?返回文件(…)可能会为您添加头,导致头被指定两次,这将导致您看到的错误
文件(…)应该指定filename.pdf
,而不是文件的整个路径
请注意,文件名不应包含任何空格或任何非字母数字字符。这是建议反对的
三件事:
您是否尝试删除(或注释掉)在响应中添加标题的行?返回文件(…)可能会为您添加头,导致头被指定两次,这将导致您看到的错误
文件(…)应该指定filename.pdf
,而不是文件的整个路径
请注意,文件名不应包含任何空格或任何非字母数字字符。这是建议反对的
这是我的有效结果:
这是从视图调用
public HttpResponseBase HitlijstNaarPdf(int? AID_Hitlijst = 0)
{
SelectPeriode(AID_Hitlijst);
var model = new HitlijstModel();
GetHitlijstSettings();
string sHtmlInhoud = ViewRenderer.RenderView("Hitlijst", model, ControllerContext);
string fileName = "Hitlijst_" + AID_Hitlijst.ToString() + ".pdf";
return CreatePDF(sHtmlInhoud, fileName);
}
private HttpResponseBase CreatePDF(string html, string fileName)
{
string convertingTool = Server.MapPath("~/bin/wkhtmltopdf.exe ");
ProcessStartInfo psi = new ProcessStartInfo(convertingTool);
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.RedirectStandardInput = true;
psi.RedirectStandardError = true;
psi.CreateNoWindow = true;
Process myProcess = Process.Start(psi);
myProcess.WaitForExit();
myProcess.Close();
string fullFileName = Server.MapPath("~/Documenten/" + fileName);
if (!System.IO.File.Exists(fullFileName))
{
Document pdfDocument = new Document(PageSize.A4, 30, 30, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(pdfDocument, new FileStream(fullFileName, FileMode.Create));
PdfWriter.GetInstance(pdfDocument, Response.OutputStream);
pdfDocument.Open();
XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDocument, new StringReader(html));
pdfDocument.Close();
}
Response.Clear();
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(fullFileName);
Response.AddHeader("content-disposition", "attachment;filename=" + fileName);
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
return Response;
}
这是我的有效结果:
这是从视图调用
public HttpResponseBase HitlijstNaarPdf(int? AID_Hitlijst = 0)
{
SelectPeriode(AID_Hitlijst);
var model = new HitlijstModel();
GetHitlijstSettings();
string sHtmlInhoud = ViewRenderer.RenderView("Hitlijst", model, ControllerContext);
string fileName = "Hitlijst_" + AID_Hitlijst.ToString() + ".pdf";
return CreatePDF(sHtmlInhoud, fileName);
}
private HttpResponseBase CreatePDF(string html, string fileName)
{
string convertingTool = Server.MapPath("~/bin/wkhtmltopdf.exe ");
ProcessStartInfo psi = new ProcessStartInfo(convertingTool);
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.RedirectStandardInput = true;
psi.RedirectStandardError = true;
psi.CreateNoWindow = true;
Process myProcess = Process.Start(psi);
myProcess.WaitForExit();
myProcess.Close();
string fullFileName = Server.MapPath("~/Documenten/" + fileName);
if (!System.IO.File.Exists(fullFileName))
{
Document pdfDocument = new Document(PageSize.A4, 30, 30, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(pdfDocument, new FileStream(fullFileName, FileMode.Create));
PdfWriter.GetInstance(pdfDocument, Response.OutputStream);
pdfDocument.Open();
XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDocument, new StringReader(html));
pdfDocument.Close();
}
Response.Clear();
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(fullFileName);
Response.AddHeader("content-disposition", "attachment;filename=" + fileName);
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
return Response;
}
这是我的有效结果:
这是从视图调用
public HttpResponseBase HitlijstNaarPdf(int? AID_Hitlijst = 0)
{
SelectPeriode(AID_Hitlijst);
var model = new HitlijstModel();
GetHitlijstSettings();
string sHtmlInhoud = ViewRenderer.RenderView("Hitlijst", model, ControllerContext);
string fileName = "Hitlijst_" + AID_Hitlijst.ToString() + ".pdf";
return CreatePDF(sHtmlInhoud, fileName);
}
private HttpResponseBase CreatePDF(string html, string fileName)
{
string convertingTool = Server.MapPath("~/bin/wkhtmltopdf.exe ");
ProcessStartInfo psi = new ProcessStartInfo(convertingTool);
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.RedirectStandardInput = true;
psi.RedirectStandardError = true;
psi.CreateNoWindow = true;
Process myProcess = Process.Start(psi);
myProcess.WaitForExit();
myProcess.Close();
string fullFileName = Server.MapPath("~/Documenten/" + fileName);
if (!System.IO.File.Exists(fullFileName))
{
Document pdfDocument = new Document(PageSize.A4, 30, 30, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(pdfDocument, new FileStream(fullFileName, FileMode.Create));
PdfWriter.GetInstance(pdfDocument, Response.OutputStream);
pdfDocument.Open();
XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDocument, new StringReader(html));
pdfDocument.Close();
}
Response.Clear();
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(fullFileName);
Response.AddHeader("content-disposition", "attachment;filename=" + fileName);
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
return Response;
}
这是我的有效结果:
这是从视图调用
public HttpResponseBase HitlijstNaarPdf(int? AID_Hitlijst = 0)
{
SelectPeriode(AID_Hitlijst);
var model = new HitlijstModel();
GetHitlijstSettings();
string sHtmlInhoud = ViewRenderer.RenderView("Hitlijst", model, ControllerContext);
string fileName = "Hitlijst_" + AID_Hitlijst.ToString() + ".pdf";
return CreatePDF(sHtmlInhoud, fileName);
}
private HttpResponseBase CreatePDF(string html, string fileName)
{
string convertingTool = Server.MapPath("~/bin/wkhtmltopdf.exe ");
ProcessStartInfo psi = new ProcessStartInfo(convertingTool);
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
psi.RedirectStandardInput = true;
psi.RedirectStandardError = true;
psi.CreateNoWindow = true;
Process myProcess = Process.Start(psi);
myProcess.WaitForExit();
myProcess.Close();
string fullFileName = Server.MapPath("~/Documenten/" + fileName);
if (!System.IO.File.Exists(fullFileName))
{
Document pdfDocument = new Document(PageSize.A4, 30, 30, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(pdfDocument, new FileStream(fullFileName, FileMode.Create));
PdfWriter.GetInstance(pdfDocument, Response.OutputStream);
pdfDocument.Open();
XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDocument, new StringReader(html));
pdfDocument.Close();
}
Response.Clear();
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(fullFileName);
Response.AddHeader("content-disposition", "attachment;filename=" + fileName);
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
return Response;
}
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