如何访问web api控制器中的mvc控制器以从视图中获取pdf

Question

我为单页面Web应用程序创建了Web Api和MVC.我想调用web api并渲染mvc控制器,使用Rotativa api从视图创建pdf.问题是当我在web api中访问mvc控制器时,它不起作用.

我如何访问web api中的mvc控制器以从视图中获取pdf？

注意:在web api中声明的mvc控制器对象因此它在"GetPdfBytesFormView"方法中给出"ControllerContext"为null.

Web Api:

[RoutePrefix("api/reports/TestReport")]
public class TestReportController : ApiController
{     
    [HttpPost]
    [Route("GetRequistionPdf")]
    public HttpResponseMessage GetRequistionPdf(modelClass oModel)  
    {       
        HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, "value");
        ReportController _Report = new ReportController();
        response.Content = new ByteArrayContent(_Report.GetPdfBytesFormView(oModel));       
        response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");            
        return response;
    }
}

MVC控制器:

public class ReportController : Controller
{       
    public ActionResult GenerateReport(modelClass oModel)
    {
        return View(oModel);
    }

    public byte[] GetPdfBytesFormView(modelClass oModel)
    {            
        var actionPDF = new Rotativa.ActionAsPdf("GenerateReport", oModel) 
        {                
            PageSize = Size.A4,
            PageOrientation = Orientation.Portrait,
            PageMargins = { Left = 6, Right = 7 }
        };

        byte[] applicationPDFData = actionPDF.BuildPdf(ControllerContext);            
        return applicationPDFData;
    }
}

Angularjs web api电话

$http.post('http://localhost:54527/api/reports/TestReport/GetRequistionPdf', { data }, { responseType: 'arraybuffer' })
                .success(function (data) {
                    var file = new Blob([data], { type: 'application/pdf' });
                    var fileURL = URL.createObjectURL(file);
                    window.open(fileURL);
                });

Answer 1

尝试将您的 GetRequestionPdf 替换为以下内容：

public HttpResponse GetRequistionPdf(modelClass oModel)  
    {       
        HttpResponse response = HttpContext.Current.Response;
        ReportController _Report = new ReportController();

                response.Clear()
                response.ClearContent()
                response.ClearHeaders()
                response.Buffer = True
                response.ContentType = "application/pdf"
                response.AddHeader("Content-Disposition", "attachment;filename=xyz.pdf")
                response.BinaryWrite(_Report.GetPdfBytesFormView(oModel));
                response.End()


        return response;
    }