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4.在Docker中使用

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wenqiang.li edited this page Oct 15, 2020 · 1 revision

Magicodes.IE在Docker中使用

说明

本章主要说明使用Magicodes.IE，在Docker环境中的配置.

要点

  • 通过Dto进行Excel导出
  • 导出PDF
  • Docker配置

示例

导出示例：

Install-Package Magicodes.IE.Excel
Install-Package Magicodes.IE.Pdf
  • 导出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);
        }

通过上述代码我们创建了一个导出示例， 具体特性属性可以看一下前两篇文章 基础教程之导出Excel 、基础教程之导出Pdf收据

Dockerfile配置

#推荐大家使用此基础镜像构建，理由见下文。该镜像通过海外构建已安装libgdiplus库。
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"]
# 如不使用上述基础镜像，那么需要添加以下命令来安装libgdiplus库，用于Excel导出
RUN apt-get update && apt-get install -y libgdiplus libc6-dev
RUN ln -s /usr/lib/libgdiplus.so /usr/lib/gdiplus.dll
# 安装fontconfig库，用于Pdf导出
RUN apt-get update && apt-get install -y fontconfig
# 复制字体文件
COPY /simsun.ttc /usr/share/fonts/simsun.ttc

注意，以上基础镜像使用：(ccr.ccs.tencentyun.com/magicodes/aspnetcore-runtime:latest) ,该镜像GitHub地址：(https://github.com/xin-lai/aspnetcore-docker)。

推荐理由：

  • 加快镜像构建和拉取速度，加速CI\CD构建以及提高开发体验
  • 时区默认设置为东八区，见“ENV TZ=Asia/Shanghai”
  • 默认安装了libgdiplus等库，以便支持Excel导入导出
  • 目前提供了腾讯云的公共镜像和hub.docker的公共镜像，大家可以按需

Reference

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