c# - Rotativa.Netcore 在本地工作，但在部署后不工作

Question

我在 ASP.NET Core 2.1.1 项目中使用最新的 Rotativa.NetCore 程序集。 NuGet (https://www.nuget.org/packages/Rotativa.AspNetCore v. 1.0.6) 不适用于部署 (win2016)，但可以在本地 (win10) 运行。

部署的 IIS 给出 404，错误日志(stdout)显示如下:

fail: Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware[1]
      An unhandled exception has occurred while executing the request.
System.Exception
   at Rotativa.AspNetCore.WkhtmlDriver.Convert(String wkhtmlPath, String switches, String html, String wkhtmlExe)
   at Rotativa.AspNetCore.WkhtmltopdfDriver.ConvertHtml(String wkhtmltopdfPath, String switches, String html)
   at Rotativa.AspNetCore.ViewAsPdf.CallTheDriver(ActionContext context)
   at Rotativa.AspNetCore.AsResultBase.BuildFile(ActionContext context)
   at Rotativa.AspNetCore.AsResultBase.ExecuteResultAsync(ActionContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultAsync(IActionResult result)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResultFilterAsync[TFilter,TFilterAsync]()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResultExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeResultFilters()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeNextResourceFilter()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Builder.RouterMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)

这里是“我的项目”源代码

public IActionResult DownloadCertificate(int id)
{
    var model = getData(id);
    return new ViewAsPdf("PdfCertificate", model)
    {
        WkhtmlPath = "", // set the path to the Rotativa .exe files. works locally but not on deployment. 
        FileName = "Cert.pdf"
    };
}

我尝试将 WkhtmlPath 更改为 "..\\Rotativa\\" 但没有成功。

疑难解答 我发现了这个:https://stackoverflow.com/a/48166956/560784 - 显然 Rotativa 是针对 .NET Core 1.0 编译的:

There's code to update Rotativa.NetCore from .Net Core 1 to .Net Core 2.0 here: https://github.com/aaxelm/Rotativa.NetCore/pull/1/files?diff=split

所以，我下载了 Rotativa 源代码并相应地更新到 .NET core 2.0，并引用了新程序集。问题仍然存在。

我也检查了权限。 Rotativa 文件夹赋予 IIS_IUSRS 执行权限(运行 ApplicationPoolIdentity)。

我错过了什么？

我的本​​地文件夹结构:

c:\inetpub\myproject\myproject.dll + web.config and what not. c:\inetpub\myproject\Rotativa{wkhtmltoimage.exe, wkhtmltopdf.exe, wkhtmltox.dll}

我部署的文件夹结构:

c:\inetpub\sites\myproject\myproject.dll + web.config and what not. c:\inetpub\sites\myproject\wwwroot\ (static files) c:\inetpub\sites\myproject\Rotativa{wkhtmltoimage.exe, wkhtmltopdf.exe, wkhtmltox.dll}

Answer 1

原来我需要安装 Microsoft Visual C++ Redistributable 2017 (x86) - 在这里下载:https://visualstudio.microsoft.com/vs/older-downloads/或 https://visualstudio.microsoft.com/downloads/

1. 我已恢复为官方 nuget(以便于以后维护)https://www.nuget.org/packages/Rotativa.AspNetCore诉 1.0.6
2. 我将 RotativaConfiguration.Setup(env, "..\\Rotativa\\"); 添加到 Startup.cs
3. 我的最终代码如下所示:

代码:

public IActionResult DownloadCertificate(int id)
{
    var model = getData(id);
    return new ViewAsPdf("PdfCertificate", model)
    {
         FileName = "Cert.pdf"
    };
}