本节源码

https://github.com/densen2014/Blazor100/tree/Blazor-教程15-6/b16blazorIDS2

截图

安装 FreeSql.Generator 命令行代码生成器生成实体类

对于此工具的使用可参考 https://github.com/dotnetcore/FreeSql/wiki/DbFirst , 也可直接运行命令查看 FreeSql.Generator

安装 dotnet-tool 生成实体类

dotnet tool install -g FreeSql.Generator

生成实体

项目右键添加 Model 目录
右键选择在终端中打开
输入命令

FreeSql.Generator  -NameOptions 0,0,0,0 -NameSpace b16blazorIDS2.Models.ids -DB "Sqlite,Data Source=../ids.db;" -Filter "View+StoreProcedure" -FileName "{name}.cs"

解释

-NameOptions 0,0,0,0 首字母大写, 首字母大写，其他小写, 全部小写, 下划线转驼峰
-DB "Sqlite,Data Source=../ids.db;" 数据库类型和连接字符串,本例数据库在上一级目录,所以是../ids.db
-Filter "View+StoreProcedure" 不生成视图和存储过程

生成的实体

添加 BootstrapBlazor 组件库

相关步骤往日文章有写,不再赘述,只贴上关键部分.

引用Nuget包

        <PackageReference Include="BootstrapBlazor" Version="7.*" />

        <PackageReference Include="BootstrapBlazor.FontAwesome" Version="7.*" />

        <PackageReference Include="Densen.Extensions.BootstrapBlazor" Version="7.*" />

        <PackageReference Include="Densen.FreeSql.Extensions.BootstrapBlazor" Version="7.*" />

        <PackageReference Include="FreeSql.Provider.Sqlite" Version="3.2.685" />

        <PackageReference Include="Magicodes.IE.Core" Version="2.7.1" />

        <PackageReference Include="Magicodes.IE.Excel" Version="2.7.1" />

        <PackageReference Include="Magicodes.IE.Html" Version="2.7.1" />

        <PackageReference Include="Magicodes.IE.Pdf" Version="2.7.1" />

        <PackageReference Include="Magicodes.IE.Word" Version="2.7.1" />

        <PackageReference Include="HtmlToOpenXml.dll" Version="2.3.0" />

        <PackageReference Include="Haukcode.WkHtmlToPdfDotNet" Version="1.5.86" />

App.razor

<BootstrapBlazorRoot>

    <CascadingAuthenticationState>

    ...

    </CascadingAuthenticationState>

</BootstrapBlazorRoot>

_Imports.razor

添加的代码

@using BootstrapBlazor.Components

@using AME.Services

@using Blazor100.Service

@using System.Diagnostics.CodeAnalysis

Pages_Host.cshtml

    <!-- 删掉这行 <link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" /> !-->

    <link href="css/site.css" rel="stylesheet" />

    <!-- 添加下面两行 !-->

    <link href="_content/BootstrapBlazor.FontAwesome/css/font-awesome.min.css" rel="stylesheet">

    <link href="_content/BootstrapBlazor/css/bootstrap.blazor.bundle.min.css" rel="stylesheet">

    <!-- 添加上面两行 !-->

    ...

    <!-- <script src="_framework/blazor.server.js"></script> 之前增加这行 !-->

    <script src="_content/BootstrapBlazor/js/bootstrap.blazor.bundle.min.js"></script>

添加导入导出服务

新建 Service 文件夹, 新建 ImportExportsService.cs 文件

using BootstrapBlazor.Components;

using Magicodes.ExporterAndImporter.Core;

using Magicodes.ExporterAndImporter.Excel;

using Magicodes.ExporterAndImporter.Html;

using Magicodes.ExporterAndImporter.Pdf;

using Magicodes.ExporterAndImporter.Word;

namespace Blazor100.Service

{

    /// <summary>

    /// 通用导入导出服务类

    /// </summary>

    public class ImportExportsService

    {

        public enum ExportType

        {

            Excel,

            Pdf,

            Word,

            Html

        }

        public async Task<string> Export<T>(string filePath, List<T>? items = null, ExportType exportType = ExportType.Excel) where T : class, new()

        {

            switch (exportType)

            {

                case ExportType.Pdf:

                    var exporterPdf = new PdfExporter();

                    items = items ?? new List<T>();

                    var resultPdf = await exporterPdf.ExportListByTemplate(filePath + ".pdf", items);

                    return resultPdf.FileName;

                case ExportType.Word:

                    var exporterWord = new WordExporter();

                    items = items ?? new List<T>();

                    var resultWord = await exporterWord.ExportListByTemplate(filePath + ".docx", items);

                    return resultWord.FileName;

                case ExportType.Html:

                    var exporterHtml = new HtmlExporter();

                    items = items ?? new List<T>();

                    var resultHtml = await exporterHtml.ExportListByTemplate(filePath + ".html", items);

                    return resultHtml.FileName;

                default:

                    IExporter exporter = new ExcelExporter();

                    items = items ?? new List<T>();

                    var result = await exporter.Export(filePath + ".xlsx", items);

                    return result.FileName;

            }

        }

        public async Task<(IEnumerable<T>? items,string error)> ImportFormExcel<T>(string filePath) where T : class, new()

        {

            IExcelImporter Importer = new ExcelImporter();

            var import = await Importer.Import<T>(filePath);

            if (import.Data == null )

            {

                return (null, import.Exception.Message);

            }

            return (import.Data!.ToList(),"");

        }

    }

}

Program.cs

顶上添加

using Densen.DataAcces.FreeSql;

using Blazor100.Service;

在 builder.Services.AddSingleton<WeatherForecastService>(); 下面添加

builder.Services.AddFreeSql(option =>

{

    option.UseConnectionString(FreeSql.DataType.Sqlite, "Data Source=ids.db;")  //也可以写到配置文件中

#if DEBUG

         //开发环境:自动同步实体

         .UseAutoSyncStructure(true)

         .UseNoneCommandParameter(true)

    //调试sql语句输出

         .UseMonitorCommand(cmd => System.Console.WriteLine(cmd.CommandText))

#endif

    ;

});

builder.Services.AddSingleton(typeof(FreeSqlDataService<>));

builder.Services.AddTransient<ImportExportsService>();

builder.Services.AddDensenExtensions();

builder.Services.ConfigureJsonLocalizationOptions(op =>

{

    // 忽略文化信息丢失日志

    op.IgnoreLocalizerMissing = true;

});

管理页面

Pages 添加组件 DataAdmin.razor

@page "/DataAdmin"

@using b16blazorIDS2.Models.ids

@using static Blazor100.Service.ImportExportsService

<PageTitle>管理</PageTitle>

 <Tab IsLazyLoadTabItem="true">

     <TabItem Text="Users">

         <Table TItem="AspNetUsers"

                IsPagination="true"

                IsStriped="true"

                IsBordered="true"

                AutoGenerateColumns="true"

                ShowSearch="true"

                ShowToolbar="true"

                ShowExtendButtons="true"

                DoubleClickToEdit=true

                ShowColumnList=true

                ShowCardView=true>

             <TableToolbarTemplate>

                 <TableToolbarButton TItem="AspNetUsers" Color="Color.Primary" Text="自由编辑" OnClick="@IsExcelToggle" />

             </TableToolbarTemplate>

         </Table>

     </TabItem>

     <TabItem Text="Roles">

         <Table TItem="AspNetRoles"

                IsPagination="true"

                IsStriped="true"

                IsBordered="true"

                AutoGenerateColumns="true"

                ShowSearch="true"

                ShowToolbar="true"

                ShowExtendButtons="true"

                DoubleClickToEdit=true

                ShowColumnList=true

                ShowCardView=true>

             <TableToolbarTemplate>

                 <TableToolbarButton TItem="AspNetRoles" Color="Color.Primary" Text="自由编辑" OnClick="@IsExcelToggle" />

             </TableToolbarTemplate>

         </Table>

     </TabItem>

     <TabItem Text="Logins">

         <Table TItem="AspNetUserLogins"

                IsPagination="true"

                IsStriped="true"

                IsBordered="true"

                AutoGenerateColumns="true"

                ShowSearch="true"

                ShowToolbar="true"

                ShowExtendButtons="true"

                DoubleClickToEdit=true

                ShowColumnList=true

                ShowCardView=true>

             <TableToolbarTemplate>

                 <TableToolbarButton TItem="AspNetUserLogins" Color="Color.Primary" Text="自由编辑" OnClick="@IsExcelToggle" />

             </TableToolbarTemplate>

         </Table>

     </TabItem>

 </Tab>

组件 DataAdmin.razor 后置代码 DataAdmin.razor.cs

using Blazor100.Service;

using BootstrapBlazor.Components;

using Microsoft.AspNetCore.Components;

using System.Diagnostics.CodeAnalysis;

namespace b16blazorIDS2.Pages

{

    public partial class DataAdmin

    {

        [Inject]

        IWebHostEnvironment? HostEnvironment { get; set; }

        [Inject]

        [NotNull]

        NavigationManager? NavigationManager { get; set; }

        [Inject]

        [NotNull]

        ImportExportsService? ImportExportsService { get; set; }

        [Inject]

        [NotNull]

        ToastService? ToastService { get; set; } 

        // 由于使用了FreeSql ORM 数据服务,可以直接取对象

        [Inject]

        [NotNull]

        IFreeSql? fsql { get; set; }

        [Inject] ToastService? toastService { get; set; }

        [Inject] SwalService? SwalService { get; set; }

        public bool IsExcel { get; set; }

        public bool DoubleClickToEdit { get; set; } = true;

        protected string UploadPath = "";

        protected string? uploadstatus;

        long maxFileSize = 1024 * 1024 * 15;

        string? tempfilename;

        private Task IsExcelToggle()

        {

            IsExcel = !IsExcel;

            DoubleClickToEdit = !IsExcel;

            StateHasChanged();

            return Task.CompletedTask;

        }

    }

}

运行截图

本节源码

https://github.com/densen2014/Blazor100/tree/Blazor-教程15-6/b16blazorIDS2

源代码

https://github.com/densen2014/Blazor100

https://gitee.com/densen2014/Blazor100 (镜像/非最新版)

巴特西

Blazor入门100天 : 身份验证和授权 (6) - 使用 FreeSql orm 管理ids数据

目录

本节源码

截图

安装 FreeSql.Generator 命令行代码生成器生成实体类

生成实体

解释

生成的实体

添加 BootstrapBlazor 组件库

引用Nuget包

App.razor

_Imports.razor

Pages_Host.cshtml

添加导入导出服务

Program.cs

管理页面

运行截图

本节源码

源代码

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