我想在控制器上调用一个动作。让控制器从模型中获取数据。然后该视图将运行并生成PDF。我发现的唯一例子是Lou http://whereslou.com/2009/04/12/returning-pdfs-from-an-aspnet-mvc-action的一篇文章。他的代码非常优雅。该视图使用ITextSharp生成PDF。唯一的缺点是他的例子使用了Spark View引擎。有没有办法用标准的Microsoft视图引擎做类似的事情?
答案 0 :(得分:82)
我使用iTextSharp在MVC中生成动态PDF。您需要做的就是将PDF放入Stream对象,然后ActionResult返回FileStreamResult。我还设置了内容处理,以便用户可以下载它。
public FileStreamResult PDFGenerator() { Stream fileStream = GeneratePDF(); HttpContext.Response.AddHeader("content-disposition", "attachment; filename=form.pdf"); return new FileStreamResult(fileStream, "application/pdf"); }
我还有代码,可以让我获取PDF模板,写文本和图像等(如果你想这样做)。
private Stream GeneratePDF() { //create your pdf and put it into the stream... pdf variable below //comes from a class I use to write content to PDF files MemoryStream ms = new MemoryStream(); byte[] byteInfo = pdf.Output(); ms.Write(byteInfo, 0, byteInfo.Length); ms.Position = 0; return ms; }
答案 1 :(得分:23)
我们对此问题的最终答案是使用Rotativa。
它像其他一些解决方案一样包装WKhtmltopdf.exe,但它是迄今为止我发现的最容易使用的
我上去投了所有其他答案,这也很好地解决了问题,但这就是我们用来解决上述问题中提出的问题。它与其他答案不同。
安装后,这就是您的需要
public ActionResult PrintInvoice(int invoiceId)
{
return new ActionAsPdf(
"Invoice",
new { invoiceId= invoiceId })
{ FileName = "Invoice.pdf" };
}
非常简单。
答案 2 :(得分:6)
在html中创建布局并在之后打印成pdf是最快的方法。
html into pdf转换由phantomjs,wkhtmltopdf或jsreport
提供jsreport提供与asp.net mvc视图的直接集成, 你可以用属性标记控制器动作,它会为你打印pdf而不是html。
有关此blog post
的更多信息免责声明:我是jsreport的作者
答案 3 :(得分:6)
这是一个老问题,但仍然具有相关性,我认为我只是分享我已经实施的那些效果很好。
安装NuGet包TuesPechkin - 基于WkHtmlToPdf的Pechkin库中的一个fork,它使用Webkit引擎将HTML页面转换为PDF。
编写一个小助手来读取视图并将其转换为HTML字符串(mvcContext是this.HttpContext)。当然,替换是可选的!:
public static string RenderViewToString(HttpContextBase mvcContext, string area, string controllerName, string viewName, object model)
{
var context = System.Web.HttpContext.Current;
var contextBase = mvcContext;
var routeData = new RouteData();
if (area == null) area = "";
routeData.DataTokens.Add("area", area);
routeData.Values.Add("controller", controllerName);
var controllerContext = new ControllerContext(contextBase,
routeData,
new EmptyController());
var razorViewEngine = new RazorViewEngine();
var razorViewResult = razorViewEngine.FindView(controllerContext,
viewName,
"",
false);
var writer = new StringWriter();
var viewContext = new ViewContext(controllerContext,
razorViewResult.View,
new ViewDataDictionary(model),
new TempDataDictionary(),
writer);
razorViewResult.View.Render(viewContext, writer);
string hostAddress = context.Request.Url.Scheme + "://" + context.Request.Url.Authority;
return writer.ToString()
.Replace("src=\"/", "src=\"" + hostAddress + "/")
.Replace("<link href=\"/", "<link href=\"" + hostAddress + "/");
}
class EmptyController : ControllerBase
{
protected override void ExecuteCore() { }
}
创建MVC操作以生成文档
public ActionResult DownloadPDF(long CentreID)
{
var model = GetModel()
IPechkin converter = Factory.Create();
byte[] result = converter.Convert(Helpers.PDF.RenderViewToString(this.HttpContext, "area", "controller", "action", model);
MemoryStream outputStream = new MemoryStream();
outputStream.Write(result, 0, result.Length);
outputStream.Position = 0;
return File(outputStream, "application/pdf", "filename.pdf");
}
答案 4 :(得分:5)
我也遇到了这个http://www.codeproject.com/Articles/260470/PDF-reporting-using-ASP-NET-MVC3。它简单快捷,适合MVC。
然而,到目前为止唯一的缺点是,你想要有一个不错的布局,它不是很灵活,例如,你没有太多的控制表和通过HTML的单元格边框。它有点支持强制新页面,但你必须在iTextsharp上应用补丁。
答案 5 :(得分:2)
我刚使用wkhtmltopdf,在html中创建布局,然后将其转换为pdf。
简单,可定制,令人敬畏的地狱:)
答案 6 :(得分:0)
非常晚回复,但我发现以下网址帮助我快速得到了我的结果:
(确保您通过使用Nuget包引用iTextSharp DLL)
修改强> 这是我用来使表格看起来有点不同的代码(这也是景观:
public string GetCssForPdf()
{
string css = "";
css = "th, td" +
"{" +
"font-family:Arial; font-size:10px" +
"}";
return css;
}
[HttpPost]
[ValidateInput(false)]
public FileResult Export(string GridHtml)
{
string webgridstyle = GetCssForPdf();
string exportData = String.Format("<html><body>{0}{1}</body></html>", "<style>" + webgridstyle + "</style>", GridHtml);
var bytes = System.Text.Encoding.UTF8.GetBytes(exportData);
using (var input = new MemoryStream(bytes))
{
var output = new MemoryStream();
var document = new iTextSharp.text.Document(PageSize.A4, 50, 50, 50, 50);
var writer = PdfWriter.GetInstance(document, output);
document.SetPageSize(iTextSharp.text.PageSize.A4.Rotate());
Font headerFont = FontFactory.GetFont("Verdana", 10);
Font rowfont = FontFactory.GetFont("Verdana", 10);
writer.CloseStream = false;
document.Open();
var xmlWorker = iTextSharp.tool.xml.XMLWorkerHelper.GetInstance();
xmlWorker.ParseXHtml(writer, document, input, System.Text.Encoding.UTF8);
document.Close();
output.Position = 0;
return File(output, "application/pdf", "Pipeline_Report.pdf");
//return new FileStreamResult(output, "application/pdf");
}
}
希望这也有助于其他人。
答案 7 :(得分:0)
在asp.net mvc中使用rotativa软件包的小示例
我们将创建一个函数来填充数据。我们将插入7天(2018年2月1日至2018年2月7日)的数据,其中显示特定日期的第一个拳和最后一个拳,并带有备注。
public ReportViewModel PopulateData()
{
var attendances = new List<Attendance>
{
new Attendance{ClassName = "present",Day = new DateTime(2018, 02, 01).ToString("ddd"),Date = new DateTime(2018, 02, 01).ToString("d"),FirstPunch = "09:01:00",LastPunch = "06:00:01",Remarks = ""},
new Attendance{ClassName = "absent",Day = new DateTime(2018, 02, 02).ToString("ddd"),Date = new DateTime(2018, 02, 02).ToString("d"),FirstPunch = "",LastPunch = "",Remarks = "Absent"},
new Attendance{ClassName = "holiday",Day = new DateTime(2018, 02, 03).ToString("ddd"),Date = new DateTime(2018, 02, 03).ToString("d"),FirstPunch = "",LastPunch = "",Remarks = "Democracy Day"},
new Attendance{ClassName = "present",Day = new DateTime(2018, 02, 04).ToString("ddd"),Date = new DateTime(2018, 02, 04).ToString("d"),FirstPunch = "09:05:00",LastPunch = "06:30:01",Remarks = ""},
new Attendance{ClassName = "present",Day = new DateTime(2018, 02, 05).ToString("ddd"),Date = new DateTime(2018, 02, 05).ToString("d"),FirstPunch = "09:01:00",LastPunch = "06:00:01",Remarks = ""},
new Attendance{ClassName = "leave",Day = new DateTime(2018, 02, 06).ToString("ddd"),Date = new DateTime(2018, 02, 06).ToString("d"),FirstPunch = "",LastPunch = "",Remarks = "Sick Leave"},
new Attendance{ClassName = "present",Day = new DateTime(2018, 02, 07).ToString("ddd"),Date = new DateTime(2018, 02, 07).ToString("d"),FirstPunch = "08:35:00",LastPunch = "06:15:01",Remarks = ""}
};
return new ReportViewModel
{
UserInformation = new UserInformation
{
FullName = "Ritesh Man Chitrakar",
Department = "Information Science"
},
StartDate = new DateTime(2018, 02, 01),
EndDate = new DateTime(2018, 02, 07),
AttendanceData = attendances
};
}
然后我们将为DownloadPdf创建一个函数。要下载pdf文件,我们需要创建2个函数。 1.下载pdf 2.查看pdf
public ActionResult DownloadPdf()
{
var filename = "attendance.pdf";
/*get the current login cookie*/
var cookies = Request.Cookies.AllKeys.ToDictionary(k => k, k => Request.Cookies[k]?.Value);
return new ActionAsPdf("PdfView", new
{
startDate = Convert.ToDateTime(Request["StartDate"]),
endDate = Convert.ToDateTime(Request["EndDate"])
})
{
FileName = filename,
/*pass the retrieved cookie inside the cookie option*/
RotativaOptions = {Cookies = cookies}
};
}
public ActionResult PdfView()
{
var reportAttendanceData = PopulateData();
return View(reportAttendanceData);
}
您可以在此链接上查看详细说明。 访问here。
Curtesoy:thelearninguy.com