Question

EmailContentDAL example = new EmailContentDAL();
example.Pdf(sMailBody);

EmailContentDAL是一个类名。Pdf是一种非静态方法，但是Response在pdf方法中不起作用

public void Pdf(string sMailBody)
{
    StringReader sr = new StringReader(sMailBody.ToString()));
    Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
    HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
    PdfWriter writer = PdfWriter.GetInstance(pdfDoc,
    Response.OutputStream);
    pdfDoc.Open();
    htmlparser.Parse(sr);
    pdfDoc.Close();
    Response.Clear();
    Response.ContentType = "application/pdf";
    Response.AddHeader("Content-Disposition", "attachment; filename=GetPass_" + passno + ".pdf");
    Response.Buffer = true;
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    Response.Write(pdfDoc);
    Response.End();
}

Answer 1

考虑到我们没有看到任何错误消息，我只是提供建议：

为什么不使用Response对象作为Pdf方法的参数？这样做不会将Reponse依赖项隐藏在Pdf方法内。

public void Pdf(string sMailBody, Response currentResponse)
{
    StringReader sr = new StringReader(sMailBody.ToString() ));
    Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
    HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
    PdfWriter writer = PdfWriter.GetInstance(pdfDoc, 
    currentResponse.OutputStream);
    pdfDoc.Open();
    htmlparser.Parse(sr);
    pdfDoc.Close();
    currentResponse.Clear();
    currentResponse.ContentType = "application/pdf";
    currentResponse.AddHeader("Content-Disposition", "attachment; "+
                              "filename=GetPass_" + passno + ".pdf");
   currentResponse.Buffer = true;
   currentResponse.Cache.SetCacheability(HttpCacheability.NoCache);
   currentResponse.Write(pdfDoc);
   currentResponse.End();
}

调用方法：

example.Pdf(sMailBody, Response);

通过使用这种方法，您可以通过模拟Response对象来轻松地测试您的方法。

Answer 2

您随时可以在System.Web.HttpContext.Current.Response.xxx方法中使用Pdf。

System.Web.HttpContext.Current.Response.ContentType = "application/pdf";

或在方法中声明一次

HttpResponse Response = HttpContext.Current.Response;

然后，您可以像平常一样写Response.xxx。

如何在非静态方法中使用Response？

2 个答案: