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网站建设的生存期模型,进入百度,怀化网站建设,今日凌晨六点26分开战目录建立默认带身份验证 Blazor 程序角色/组件/特性/过程逻辑DB 改 Sqlite将自定义字段添加到用户表脚手架拉取IDS文件,本地化资源freesql 生成实体类,freesql 管理ids数据表初始化 Roles,freesql 外键 > 导航属性完善 freesql 和 bb 特性本节源码 https://github.com/…

本节源码

https://github.com/densen2014/Blazor100/tree/Blazor-%E6%95%99%E7%A8%8B15-6/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=trueShowColumnList=trueShowCardView=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=trueShowColumnList=trueShowCardView=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=trueShowColumnList=trueShowCardView=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;}}
}