[英]How to access mvc controller in web api controller to get pdf from view
我為單頁Web應用程序創建了Web Api和MVC。 我想調用Web api並渲染mvc控制器以使用Rotativa api從視圖創建pdf。 問題是,當我在Web API中訪問MVC控制器時,它不起作用。
我如何在Web API中訪問MVC控制器以從視圖獲取pdf?
注意:在Web api中聲明的mvc控制器對象,使它在“ GetPdfBytesFormView”方法中給出“ ControllerContext”為空。
網絡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調用
$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);
});
終於得到解決方案。
假設您的控制器名稱是“ PDFController”,操作名稱是“ GetPDF”。 在您的api控制器中編寫以下代碼
// Add key value
RouteData route = new RouteData();
route.Values.Add("action", "GetPDF"); // ActionName
route.Values.Add("controller", "PDF"); // Controller Name
System.Web.Mvc.ControllerContext newContext = new System.Web.Mvc.ControllerContext(new HttpContextWrapper(System.Web.HttpContext.Current), route, controller);
controller.ControllerContext = newContext;
controller.GetPDF();
您已完成。 您的pdf應該會生成。
希望對你有幫助
嘗試用下面的一個替換您的GetRequestionPdf:
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;
}
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