生成 .rdlc 报告在本地有效，但在部署到 azure 后无效

Posted 2023-04-12

【中文标题】生成 .rdlc 报告在本地有效，但在部署到 azure 后无效

【英文标题】：Generating .rdlc report works on local but not after deploying to azure

【发布时间】：2016-11-06 07:58:43

【问题描述】：

在我的 ASP.NET MVC 5 应用程序中，我有以下方法：

public ActionResult SendMailAsAStudent(string studentId, string companyId, int applicationId, string companyCVR, string studentCPR)
        
            var manager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(new ApplicationDbContext()));
            var student = manager.FindById(studentId);
            var company = manager.FindById(companyId);
            var application = db.Applications.Find(applicationId);
            Project projectobj = db.Projects.Find(application.ProjectId);


            var myMessage = new SendGridMessage();
            myMessage.From = new MailAddress("[e-mail]");
            myMessage.AddTo(student.Email);
            myMessage.AddTo(company.Email);
            myMessage.Subject ="The contract for " + projectobj.Title + " is signed!";
            myMessage.html = "Here is the final contract";

            LocalReport localReport = new LocalReport();
            localReport.ReportPath = Server.MapPath("~/Contracts/Contract.rdlc");

            ReportParameter cvrParameter = new ReportParameter("cvrParameter", companyCVR);
            ReportParameter companyNameParameter = new ReportParameter("companyNameParameter", company.CompanyName);
            ReportParameter companyAddressParameter = new ReportParameter("companyAddressParameter", company.Address);
            ReportParameter studentNameParameter = new ReportParameter("studentNameParameter", student.FirstName+" "+student.LastName);
            ReportParameter studentAddressParameter = new ReportParameter("studentAddressParameter", student.Address);
            ReportParameter studentZipCodeParameter = new ReportParameter("studentZipCodeParameter", student.ZipCode);
            ReportParameter jobStartDateParameter = new ReportParameter("jobStartDateParameter", projectobj.StartDate);
            ReportParameter jobEndDateParameter = new ReportParameter("jobEndDateParameter", projectobj.EndDate);
            ReportParameter jobDescriptionParameter = new ReportParameter("jobDescriptionParameter", projectobj.Description);
            ReportParameter jobHoursPerWeekParameter = new ReportParameter("jobHoursPerWeekParameter", projectobj.HoursPerWeek.ToString());
            ReportParameter jobHourlyRateParameter = new ReportParameter("jobHourlyRateParameter", projectobj.HourlyRate.ToString());
            ReportParameter cprParameter = new ReportParameter("cprParameter", studentCPR);

            localReport.SetParameters(new ReportParameter[]  cprParameter );
            localReport.SetParameters(new ReportParameter[]  cvrParameter );
            localReport.SetParameters(new ReportParameter[]  companyNameParameter );
            localReport.SetParameters(new ReportParameter[]  companyAddressParameter );
            localReport.SetParameters(new ReportParameter[]  studentNameParameter );
            localReport.SetParameters(new ReportParameter[]  studentAddressParameter );
            localReport.SetParameters(new ReportParameter[]  studentZipCodeParameter );
            localReport.SetParameters(new ReportParameter[]  jobStartDateParameter );
            localReport.SetParameters(new ReportParameter[]  jobEndDateParameter );
            localReport.SetParameters(new ReportParameter[]  jobDescriptionParameter );
            localReport.SetParameters(new ReportParameter[]  jobHoursPerWeekParameter );
            localReport.SetParameters(new ReportParameter[]  jobHourlyRateParameter );

            string reportType = "PDF";
            string mimeType;
            string encoding;
            string fileNameExtension = "pdf";
            Warning[] warnings;
            string[] streams;
            var renderedBytes = localReport.Render(reportType, "", out mimeType, out encoding, out fileNameExtension, out streams, out warnings);
            Response.AddHeader("content-disposition", "attatchment; filename=Contract." + fileNameExtension);

           MemoryStream stream = new MemoryStream(renderedBytes);

           myMessage.AddAttachment(stream, "Contract.pdf");


            var apiKey = "key removed for this post";
            var transportWeb = new Web(apiKey);
            transportWeb.DeliverAsync(myMessage);

            Contract contract = new Contract();
            contract.StudentId = studentId;
            contract.CompanyId = companyId;
            contract.CVR = companyCVR;
            contract.ApplicationId = applicationId;
            contract.IsSigned = true;

            db.Contracts.Add(contract);
            db.SaveChanges();
            return RedirectToAction("Index", "Projects");
        

如果我在本地主机上运行它，它会成功发送带有报告文件的邮件。部署到 Azure 时，它​​不再起作用。注释掉报告生成并将其添加为附件使其正常工作，因此我将问题确定为报告生成。

什么可能导致它不再在网站上运行？我检查了参数不为空。

【问题讨论】：

您需要比“不起作用”更具体。有没有抛出异常？我最初的怀疑是您的 azure 实例没有安装报告运行时。

没有异常或类似的东西，试图找出F12的问题，但没有。可能就像您描述的那样，但是我的参考文献中有 Microsoft.ReportViewer.Common 和 Microsoft.ReportViewer.WebForms。当我点击发布时它们没有安装吗？

两个 CopyLocal 都设置为 TRUE

肯定有异常，你知道怎么在Azure上远程调试吗？

在快速谷歌之后，我发现了如何做到这一点。我的另一个问题是在 Visual Studio 中选择“发布”而不是“调试”会改变结果吗？编辑：即使选择了“发布”，仍然可以在我的本地机器上工作

【参考方案1】：

我打开了 web.config 中显示的错误，如下所示：

<customErrors mode="Off"> 

然后我得到了错误：

Could not load file or assembly 'Microsoft.ReportViewer.ProcessingObjectModel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

感谢 Crowcoder，我终于找到了问题所在，我不得不从 NuGet 包管理器安装 Microsoft.Report.Viewer 10.0.0！

构建、发布，现在可以使用了！