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4.Use in Docker.md

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Magicodes.IE for use in Docker

Description

This chapter mainly explains the use of Magicodes.IE, configuration in a Docker environment.

Main points

  • Excel export via Dto
  • Exporting PDF
  • Docker Configuration

Example

Example of export.

Install-Package Magicodes.IE.Excel
Install-Package Magicodes.IE.Pdf
  • Export Excel
    [ExcelExporter(Name = "学生信息", TableStyle = "Light10", AutoFitAllColumn = true,
        MaxRowNumberOnASheet = 2)]
    public class StudentExcel
    {

        /// <summary>
        ///     姓名
        /// </summary>
        [ExporterHeader(DisplayName = "姓名")]
        public string Name { get; set; }
        /// <summary>
        ///     年龄
        /// </summary>
        [ExporterHeader(DisplayName = "年龄")]
        public int Age { get; set; }
        /// <summary>
        ///     备注
        /// </summary>
        public string Remarks { get; set; }
        /// <summary>
        ///     出生日期
        /// </summary>
        [ExporterHeader(DisplayName = "出生日期", Format = "yyyy-mm-DD")]
        public DateTime Birthday { get; set; }
    }
        public async Task<IActionResult> ExporterExcel() {
            IExporter exporter = new ExcelExporter();
           
            var result = await exporter.Export(Path.Combine("wwwroot","test.xlsx"), new List<StudentExcel>()
                {
                    new StudentExcel
                    {
                        Name = "MR.A",
                        Age = 18,
                        Remarks = "我叫MR.A,今年18岁",
                        Birthday=DateTime.Now
                    },
                    new StudentExcel
                    {
                        Name = "MR.B",
                        Age = 19,
                        Remarks = "我叫MR.B,今年19岁",
                        Birthday=DateTime.Now
                    },
                    new StudentExcel
                    {
                        Name = "MR.C",
                        Age = 20,
                        Remarks = "我叫MR.C,今年20岁",
                        Birthday=DateTime.Now
                    }
                });
            return File("test.xlsx", "application/ms-excel", result.FileName);
        }
  • 导出PDF
    [PdfExporter(Name = "学生信息")]
    public class StudentPdf
    {
        /// <summary>
        ///     姓名
        /// </summary>
        [ExporterHeader(DisplayName = "姓名")]
        public string Name { get; set; }
        /// <summary>
        ///     年龄
        /// </summary>
        [ExporterHeader(DisplayName = "年龄")]
        public int Age { get; set; }
        /// <summary>
        ///     备注
        /// </summary>
        public string Remarks { get; set; }
        /// <summary>
        ///     出生日期
        /// </summary>
        [ExporterHeader(DisplayName = "出生日期", Format = "yyyy-mm-DD")]
        public DateTime Birthday { get; set; }
    }
        public async Task<IActionResult> ExporterPdf() {
            var exporter = new PdfExporter();
            var result = await exporter.ExportListByTemplate(Path.Combine("wwwroot", "test.pdf"), new List<StudentPdf>()
            {
                 new StudentPdf
                    {
                        Name = "MR.A",
                        Age = 18,
                        Remarks = "我叫MR.A,今年18岁",
                        Birthday=DateTime.Now
                    },
                    new StudentPdf
                    {
                        Name = "MR.B",
                        Age = 19,
                        Remarks = "我叫MR.B,今年19岁",
                        Birthday=DateTime.Now
                    },
                    new StudentPdf
                    {
                        Name = "MR.C",
                        Age = 20,
                        Remarks = "我叫MR.C,今年20岁",
                        Birthday=DateTime.Now
                    }
            });
            return File("test.pdf", "application/pdf", result.FileName);
        }

With the above code we have created an export demo， The specific characteristics and properties can be seen in the previous two articles. 基础教程之导出Excel 、基础教程之导出Pdf收据

Dockerfile Configuration

#It is recommended that you build with this base image for the reasons given below. This image build has the libgdiplus library installed.
FROM ccr.ccs.tencentyun.com/magicodes/aspnetcore-runtime:latest AS base

WORKDIR /src
RUN ls
COPY /src/Magicodes.IE.Exporter/simsun.ttc /usr/share/fonts/simsun.ttc

WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/core/sdk:latest AS build
WORKDIR /src
COPY ["Magicodes.IE.Exporter.csproj", "src/Magicodes.IE.Exporter/"]
RUN dotnet restore "src/Magicodes.IE.Exporter/Magicodes.IE.Exporter.csproj"
COPY . .
WORKDIR "src/Magicodes.IE.Exporter"
RUN dotnet build "Magicodes.IE.Exporter.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "Magicodes.IE.Exporter.csproj" -c Release -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from= publish /app/publish .
ENTRYPOINT ["dotnet", "Magicodes.IE.Exporter.dll"]
# If you do not use the above base image, then you need to add the following command to install the libgdiplus library for Excel export
RUN apt-get update && apt-get install -y libgdiplus libc6-dev
RUN ln -s /usr/lib/libgdiplus.so /usr/lib/gdiplus.dll
# Install fontconfig library for Pdf export
RUN apt-get update && apt-get install -y fontconfig
# Copy font file
COPY /simsun.ttc /usr/share/fonts/simsun.ttc

Note that the above base image uses：(ccr.ccs.tencentyun.com/magicodes/aspnetcore-runtime:latest) ,该镜像GitHub地址：(https://github.com/xin-lai/aspnetcore-docker)。

Reasons for Recommendation.

  • Speed up image building and pulling, accelerate CI/CD building and improve development experience
  • Time zone is set to East 8 by default, see "ENV TZ=Asia/Shanghai"
  • By default, libgdiplus and other libraries are installed to support Excel import and export
  • At present, we provide Tencent Cloud public mirror and hub.docker public mirror, you can use them as needed.

Reference