【发布时间】:2021-07-09 12:02:55
【问题描述】:
这是我将图片添加到工作表的代码。我从数据库中获取图片作为一个字节。 .Net Core 框架版本为 2.2.104。这是一个 API 项目。在我的语言环境中,代码运行良好。我使用的 ClosedXML 组件 0.95.4 版本如下。
[HttpPost("GetTowel")]
public IActionResult GetTowel()
{
string contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
string fileName = "Towel Quotation.xlsx";
try
{
using (var workbook = new XLWorkbook())
{
IXLWorksheet worksheet = workbook.Worksheets.Add("Towel Quotation");
byte[] bytes = _fileService.Get(159).FileInBytes;
System.IO.Stream x = new System.IO.MemoryStream(bytes);
//the exception is throwed at this line:
**var image = worksheet.AddPicture(x).MoveTo(worksheet.Cell("P1")).Scale(1.0);**
using (var stream = new MemoryStream())
{
workbook.SaveAs(stream);
var content = stream.ToArray();
return File(content, contentType, fileName);
}
}
}
catch (Exception ex)
{
return BadRequest(ErrorResultFormatter.PrepareErrorResult("",ex.Message));
}
}
我的 Kubernetes 服务器信息如下:
System.drawing.common the type initializer for 'gdip' threw an exception
*FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build WORKDIR /app
COPY *.csproj Nuget.Config ./ RUN dotnet restore /property:Configuration=Release
--configfile=Nuget.Config --no-cache --force
COPY . ./temp/ WORKDIR /app/temp RUN dotnet publish -c Release -o out FROM mcr.microsoft.com/dotnet/core/aspnet:2.2 AS runtime ENV ASPNETCORE_URLS="http://+" ENV ASPNETCORE_Kestrel__Certificates__Default__Password="*****" WORKDIR /app COPY --from=build /app/temp/out ./ ENTRYPOINT ["dotnet", "blahblah.dll"]*
在服务器端,我得到如下异常:“system.drawing.common 'gdip' 的类型初始化程序引发异常”
我在谷歌上搜索过很多次。这种方式一般建议添加docker文件:
RUN apt-get install libgdiplus
但是这种方式也没有解决我的问题。有人可以帮帮我吗?
提前致谢。
【问题讨论】:
-
这是 windows 还是 linux 容器?
-
你可以使用这个repo来生成简单的excel文件:github.com/doxa-labs/ExcelLabs
-
你也需要 libc6-dev。检查它是否已安装。
标签: c# kubernetes .net-core worksheet closedxml