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零框架多租户设计方案

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hello 2024-04-28 16:00:15 +08:00
parent b7caaa2d0c
commit b4a704526d
42 changed files with 1002 additions and 1 deletions
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27
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Controllers/ProductsController.cs Normal file
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using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using MultiTenancySample.DatabaseIsolationService.Entities;
using MultiTenancySample.DatabaseIsolationService.EntityFrameworks;
namespace MultiTenancySample.DatabaseIsolationService.Controllers
{
[Route("api/{tenant}/[controller]")]
[ApiController]
public class ProductsController(IDbContextFactory<DatabaseIsolationServiceDbContext> dbContextFactory) : ControllerBase
{
private readonly DatabaseIsolationServiceDbContext _dbContext = dbContextFactory.CreateDbContext();
[HttpGet]
public IActionResult GetProducts(string? keyword)
{
IQueryable<Product> products = _dbContext.Set<Product>();
if (!string.IsNullOrWhiteSpace(keyword))
{
products = products.Where(p => p.Name.Contains(keyword));
}
return Ok(products);
}
}
}

9
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Entities/Product.cs Normal file
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namespace MultiTenancySample.DatabaseIsolationService.Entities
{
public class Product
{
public Guid Id { get; set; }
public required string Name { get; set; }
}
}

43
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DataSeeding.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.DatabaseIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.DatabaseIsolationService.EntityFrameworks
{
public class DataSeeding(IDbContextFactory<DatabaseIsolationServiceDbContext> dbContext, ICurrentTenant currentTenant)
{
public async Task SeedDataAsync()
{
currentTenant.SetTenant("Tenant1");
DatabaseIsolationServiceDbContext dbContext1 = await dbContext.CreateDbContextAsync();
if (await dbContext1.Database.EnsureCreatedAsync())
{
await dbContext1.AddRangeAsync(new List<Product> {
new() { Id = Guid.NewGuid(), Name = "Product1"},
new() { Id = Guid.NewGuid(), Name = "Product3"},
new() { Id = Guid.NewGuid(), Name = "Product5"}
});
await dbContext1.SaveChangesAsync();
}
currentTenant.SetTenant("Tenant2");
DatabaseIsolationServiceDbContext dbContext2 = await dbContext.CreateDbContextAsync();
if (await dbContext2.Database.EnsureCreatedAsync())
{
await dbContext2.AddRangeAsync(new List<Product>
{
new() { Id = Guid.NewGuid(), Name = "Product2"},
new() { Id = Guid.NewGuid(), Name = "Product4"},
new() { Id = Guid.NewGuid(), Name = "Product6"}
});
await dbContext2.SaveChangesAsync();
}
}
}
}

29
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/EntityFrameworks/DatabaseIsolationServiceDbContext.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.DatabaseIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.DatabaseIsolationService.EntityFrameworks
{
public class DatabaseIsolationServiceDbContext(DbContextOptions<DatabaseIsolationServiceDbContext> options, ICurrentTenant currentTenant, IConfiguration configuration) : DbContext(options)
{
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<Product>().Property(p => p.Name).HasMaxLength(32);
base.OnModelCreating(modelBuilder);
}
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
if (currentTenant.TenantId != null)
{
string? connectionString = configuration.GetConnectionString(currentTenant.TenantId);
optionsBuilder.UseNpgsql(connectionString);
}
base.OnConfiguring(optionsBuilder);
}
}
}

18
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/MultiTenancySample.DatabaseIsolationService.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.2" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\MultiTenancySample.ServiceDefaults\MultiTenancySample.ServiceDefaults.csproj" />
</ItemGroup>
</Project>

42
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Program.cs Normal file
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using MultiTenancySample.DatabaseIsolationService.EntityFrameworks;
using MultiTenancySample.ServiceDefaults;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddDbContextFactory<DatabaseIsolationServiceDbContext>(lifetime: ServiceLifetime.Scoped);
builder.Services.AddScoped<DataSeeding>();
builder.Services.AddHttpContextAccessor();
builder.Services.AddMultiTenancy();
var app = builder.Build();
app.UseMultiTenancy();
var serviceProvider = app.Services.CreateScope().ServiceProvider;
var dataSeeding = serviceProvider.GetRequiredService<DataSeeding>();
await dataSeeding.SeedDataAsync();
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.UseAuthorization();
app.MapControllers();
app.Run();

41
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/Properties/launchSettings.json Normal file
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{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:62504",
"sslPort": 44361
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "http://localhost:5220",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "https://localhost:7102;http://localhost:5220",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"launchUrl": "swagger",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

8
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/appsettings.Development.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

13
samples/MultiTenancySample/MultiTenancySample.DatabaseIsolationService/appsettings.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*",
"ConnectionStrings": {
"Tenant1": "Host=localhost;Port=5432;Database=DatabaseIsolationService1;Username=postgres;Password=postgres",
"Tenant2": "Host=localhost;Port=5432;Database=DatabaseIsolationService2;Username=postgres;Password=postgres"
}
}

27
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Controllers/ProductsController.cs Normal file
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using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using MultiTenancySample.FieldIsolationService.Entities;
using MultiTenancySample.FieldIsolationService.EntityFrameworks;
namespace MultiTenancySample.FieldIsolationService.Controllers
{
[Route("api/{tenant}/[controller]")]
[ApiController]
public class ProductsController(IDbContextFactory<FieldIsolationServiceDbContext> dbContextFactory) : ControllerBase
{
private readonly FieldIsolationServiceDbContext _dbContext = dbContextFactory.CreateDbContext();
[HttpGet]
public IActionResult GetProducts(string? keyword)
{
IQueryable<Product> products = _dbContext.Set<Product>();
if (!string.IsNullOrWhiteSpace(keyword))
{
products = products.Where(p => p.Name.Contains(keyword));
}
return Ok(products);
}
}
}

7
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/IMultiTenant.cs Normal file
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namespace MultiTenancySample.FieldIsolationService.Entities
{
public interface IMultiTenant
{
string? TenantId { get; set; }
}
}

14
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Entities/Product.cs Normal file
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using System.Text.Json.Serialization;
namespace MultiTenancySample.FieldIsolationService.Entities
{
public class Product : IMultiTenant
{
public Guid Id { get; set; }
public required string Name { get; set; }
[JsonIgnore]
public string? TenantId { get; set; }
}
}

43
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/DataSeeding.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.FieldIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.FieldIsolationService.EntityFrameworks
{
public class DataSeeding(IDbContextFactory<FieldIsolationServiceDbContext> dbContext, ICurrentTenant currentTenant)
{
public async Task SeedDataAsync()
{
currentTenant.SetTenant("Tenant1");
FieldIsolationServiceDbContext dbContext1 = await dbContext.CreateDbContextAsync();
if (await dbContext1.Database.EnsureCreatedAsync())
{
await dbContext1.AddRangeAsync(new List<Product> {
new() { Id = Guid.NewGuid(), Name = "Product1"},
new() { Id = Guid.NewGuid(), Name = "Product3"},
new() { Id = Guid.NewGuid(), Name = "Product5"}
});
await dbContext1.SaveChangesAsync();
}
currentTenant.SetTenant("Tenant2");
FieldIsolationServiceDbContext dbContext2 = await dbContext.CreateDbContextAsync();
if (await dbContext2.Set<Product>().IgnoreQueryFilters().CountAsync() < 6)
{
await dbContext2.AddRangeAsync(new List<Product>
{
new() { Id = Guid.NewGuid(), Name = "Product2"},
new() { Id = Guid.NewGuid(), Name = "Product4"},
new() { Id = Guid.NewGuid(), Name = "Product6"}
});
await dbContext2.SaveChangesAsync();
}
}
}
}

29
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/EntityTypeBuilderQueryFilterExtensions.cs Normal file
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using Microsoft.EntityFrameworkCore.Metadata.Builders;
using Microsoft.EntityFrameworkCore.Query;
using System.Linq.Expressions;
namespace MultiTenancySample.FieldIsolationService.EntityFrameworks
{
public static class EntityTypeBuilderQueryFilterExtensions
{
/// <summary>
/// Support multiple HasQueryFilter calls on same entity type
/// https://github.com/dotnet/efcore/issues/10275
/// </summary>
public static void AddQueryFilter<T>(this EntityTypeBuilder entityTypeBuilder, Expression<Func<T, bool>> expression)
{
ParameterExpression parameterType = Expression.Parameter(entityTypeBuilder.Metadata.ClrType);
Expression expressionFilter = ReplacingExpressionVisitor.Replace(expression.Parameters.Single(), parameterType, expression.Body);
LambdaExpression? currentQueryFilter = entityTypeBuilder.Metadata.GetQueryFilter();
if (currentQueryFilter is not null)
{
Expression currentExpressionFilter = ReplacingExpressionVisitor.Replace(currentQueryFilter.Parameters.Single(), parameterType, currentQueryFilter.Body);
expressionFilter = Expression.AndAlso(currentExpressionFilter, expressionFilter);
}
LambdaExpression lambdaExpression = Expression.Lambda(expressionFilter, parameterType);
entityTypeBuilder.HasQueryFilter(lambdaExpression);
}
}
}

32
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/FieldIsolationServiceDbContext.cs Normal file
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using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata;
using MultiTenancySample.FieldIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.FieldIsolationService.EntityFrameworks
{
public class FieldIsolationServiceDbContext(DbContextOptions<FieldIsolationServiceDbContext> options, ICurrentTenant currentTenant) : DbContext(options)
{
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<Product>().Property(p => p.Name).HasMaxLength(32);
foreach (IMutableEntityType entityType in modelBuilder.Model.GetEntityTypes())
{
if (entityType.ClrType.IsAssignableTo(typeof(IMultiTenant)))
{
modelBuilder.Entity(entityType.ClrType).AddQueryFilter<IMultiTenant>(e => e.TenantId == currentTenant.TenantId);
}
}
base.OnModelCreating(modelBuilder);
}
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
optionsBuilder.AddInterceptors(new TenantSaveChangesInterceptor(currentTenant));
base.OnConfiguring(optionsBuilder);
}
}
}

41
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/EntityFrameworks/TenantSaveChangesInterceptor.cs Normal file
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using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.ChangeTracking;
using Microsoft.EntityFrameworkCore.Diagnostics;
using MultiTenancySample.FieldIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.FieldIsolationService.EntityFrameworks
{
public class TenantSaveChangesInterceptor(ICurrentTenant currentTenant) : SaveChangesInterceptor
{
public override InterceptionResult<int> SavingChanges(DbContextEventData eventData, InterceptionResult<int> result)
{
if (eventData.Context is not null)
{
MultiTenancyTracking(eventData.Context);
}
return base.SavingChanges(eventData, result);
}
public override ValueTask<InterceptionResult<int>> SavingChangesAsync(DbContextEventData eventData, InterceptionResult<int> result, CancellationToken cancellationToken = default)
{
if (eventData.Context is not null)
{
MultiTenancyTracking(eventData.Context);
}
return base.SavingChangesAsync(eventData, result, cancellationToken);
}
private void MultiTenancyTracking(DbContext dbContext)
{
IEnumerable<EntityEntry<IMultiTenant>> multiTenancyEntries = dbContext.ChangeTracker.Entries<IMultiTenant>().Where(entry => entry.State == EntityState.Added || entry.State == EntityState.Modified);
multiTenancyEntries?.ToList().ForEach(entityEntry =>
{
entityEntry.Entity.TenantId ??= currentTenant.TenantId;
});
}
}
}

18
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/MultiTenancySample.FieldIsolationService.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.2" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\MultiTenancySample.ServiceDefaults\MultiTenancySample.ServiceDefaults.csproj" />
</ItemGroup>
</Project>

46
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Program.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.FieldIsolationService.EntityFrameworks;
using MultiTenancySample.ServiceDefaults;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddDbContextFactory<FieldIsolationServiceDbContext>(options =>
{
options.UseNpgsql(builder.Configuration.GetConnectionString("Default"));
}, lifetime: ServiceLifetime.Scoped);
builder.Services.AddScoped<DataSeeding>();
builder.Services.AddHttpContextAccessor();
builder.Services.AddMultiTenancy();
var app = builder.Build();
app.UseMultiTenancy();
var serviceProvider = app.Services.CreateScope().ServiceProvider;
var dataSeeding = serviceProvider.GetRequiredService<DataSeeding>();
await dataSeeding.SeedDataAsync();
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.UseAuthorization();
app.MapControllers();
app.Run();

41
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/Properties/launchSettings.json Normal file
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{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:40935",
"sslPort": 44346
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "http://localhost:5072",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "https://localhost:7237;http://localhost:5072",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"launchUrl": "swagger",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

8
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/appsettings.Development.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

12
samples/MultiTenancySample/MultiTenancySample.FieldIsolationService/appsettings.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*",
"ConnectionStrings": {
"Default": "Host=localhost;Port=5432;Database=FieldIsolationService;Username=postgres;Password=postgres"
}
}

27
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Controllers/ProductsController.cs Normal file
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using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using MultiTenancySample.SchemaIsolationService.Entities;
using MultiTenancySample.SchemaIsolationService.EntityFrameworks;
namespace MultiTenancySample.SchemaIsolationService.Controllers
{
[Route("api/{tenant}/[controller]")]
[ApiController]
public class ProductsController(IDbContextFactory<SchemaIsolationDbContext> dbContextFactory) : ControllerBase
{
private readonly SchemaIsolationDbContext _dbContext = dbContextFactory.CreateDbContext();
[HttpGet]
public IActionResult GetProducts(string? keyword)
{
IQueryable<Product> products = _dbContext.Set<Product>();
if (!string.IsNullOrWhiteSpace(keyword))
{
products = products.Where(p => p.Name.Contains(keyword));
}
return Ok(products);
}
}
}

9
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Entities/Product.cs Normal file
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namespace MultiTenancySample.SchemaIsolationService.Entities
{
public class Product
{
public Guid Id { get; set; }
public required string Name { get; set; }
}
}

45
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/DataSeeding.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.SchemaIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.SchemaIsolationService.EntityFrameworks
{
public class DataSeeding(IDbContextFactory<SchemaIsolationDbContext> dbContext, ICurrentTenant currentTenant)
{
public async Task SeedDataAsync()
{
currentTenant.SetTenant("Tenant1");
SchemaIsolationDbContext dbContext1 = await dbContext.CreateDbContextAsync();
if (await dbContext1.Database.EnsureCreatedAsync())
{
await dbContext1.AddRangeAsync(new List<Product> {
new() { Id = Guid.NewGuid(), Name = "Product1"},
new() { Id = Guid.NewGuid(), Name = "Product3"},
new() { Id = Guid.NewGuid(), Name = "Product5"}
});
await dbContext1.SaveChangesAsync();
}
currentTenant.SetTenant("Tenant2");
SchemaIsolationDbContext dbContext2 = dbContext.CreateDbContext();
await dbContext2.Database.MigrateAsync();
if (await dbContext2.Database.EnsureCreatedAsync())
{
await dbContext2.AddRangeAsync(new List<Product>
{
new() { Id = Guid.NewGuid(), Name = "Product2"},
new() { Id = Guid.NewGuid(), Name = "Product4"},
new() { Id = Guid.NewGuid(), Name = "Product6"}
});
await dbContext2.SaveChangesAsync();
}
}
}
}

21
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/EntityFrameworks/SchemaIsolationDbContext.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.SchemaIsolationService.Entities;
using MultiTenancySample.ServiceDefaults;
namespace MultiTenancySample.SchemaIsolationService.EntityFrameworks
{
public class SchemaIsolationDbContext(DbContextOptions<SchemaIsolationDbContext> options, ICurrentTenant currentTenant) : DbContext(options)
{
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<Product>().Property(p => p.Name).HasMaxLength(32);
// This scenario is not directly supported by EF Core and is not a recommended solution.
// https://learn.microsoft.com/en-us/ef/core/miscellaneous/multitenancy
modelBuilder.HasDefaultSchema(currentTenant.TenantId);
base.OnModelCreating(modelBuilder);
}
}
}

31
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/MultiTenancySample.SchemaIsolationService.csproj Normal file
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@ -0,0 +1,31 @@
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.2" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\MultiTenancySample.ServiceDefaults\MultiTenancySample.ServiceDefaults.csproj" />
</ItemGroup>
<ItemGroup>
<Content Update="appsettings.Development.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
<CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
</Content>
<Content Update="appsettings.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
<CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
</Content>
</ItemGroup>
</Project>

46
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Program.cs Normal file
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using Microsoft.EntityFrameworkCore;
using MultiTenancySample.SchemaIsolationService.EntityFrameworks;
using MultiTenancySample.ServiceDefaults;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddDbContextFactory<SchemaIsolationDbContext>(options =>
{
options.UseNpgsql(builder.Configuration.GetConnectionString("Default"));
}, lifetime: ServiceLifetime.Scoped);
builder.Services.AddScoped<DataSeeding>();
builder.Services.AddHttpContextAccessor();
builder.Services.AddMultiTenancy();
var app = builder.Build();
app.UseMultiTenancy();
var serviceProvider = app.Services.CreateScope().ServiceProvider;
var dataSeeding = serviceProvider.GetRequiredService<DataSeeding>();
await dataSeeding.SeedDataAsync();
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.UseAuthorization();
app.MapControllers();
app.Run();

41
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/Properties/launchSettings.json Normal file
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@ -0,0 +1,41 @@
{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:40979",
"sslPort": 44360
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "http://localhost:5258",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "https://localhost:7264;http://localhost:5258",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"launchUrl": "swagger",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

8
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/appsettings.Development.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

12
samples/MultiTenancySample/MultiTenancySample.SchemaIsolationService/appsettings.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*",
"ConnectionStrings": {
"Default": "Host=localhost;Port=5432;Database=SchemaIsolationService;Username=postgres;Password=postgres"
}
}

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samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/CurrentTenant.cs Normal file
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namespace MultiTenancySample.ServiceDefaults
{
public class CurrentTenant : ICurrentTenant
{
public string? TenantId { get; private set; }
public IDisposable SetTenant(string? tenantId)
{
string? parentTenantId = TenantId;
TenantId = tenantId;
return new DisposeAction(() =>
{
TenantId = parentTenantId;
});
}
public class DisposeAction(Action action) : IDisposable
{
void IDisposable.Dispose()
{
action();
GC.SuppressFinalize(this);
}
}
}
}

9
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ICurrentTenant.cs Normal file
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namespace MultiTenancySample.ServiceDefaults
{
public interface ICurrentTenant
{
string? TenantId { get; }
IDisposable SetTenant(string? tenantId);
}
}

7
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/ITenantIdProvider.cs Normal file
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namespace MultiTenancySample.ServiceDefaults
{
public interface ITenantIdProvider
{
Task<string?> GetTenantIdAsync();
}
}

23
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/MultiTenancyExtensions.cs Normal file
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using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;
namespace MultiTenancySample.ServiceDefaults
{
public static class MultiTenancyExtensions
{
public static IServiceCollection AddMultiTenancy(this IServiceCollection services)
{
services.AddScoped<ICurrentTenant, CurrentTenant>();
services.AddScoped<ITenantIdProvider, TenantIdProvider>();
return services.AddScoped<TenantMiddleware>();
}
public static IApplicationBuilder UseMultiTenancy(this IApplicationBuilder app)
{
app.UseMiddleware<TenantMiddleware>();
return app;
}
}
}

13
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/MultiTenancySample.ServiceDefaults.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<FrameworkReference Include="Microsoft.AspNetCore.App" />
</ItemGroup>
</Project>

12
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/Properties/launchSettings.json Normal file
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{
"profiles": {
"MultiTenancySample.ServiceDefaults": {
"commandName": "Project",
"launchBrowser": true,
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
},
"applicationUrl": "https://localhost:61544;http://localhost:61545"
}
}
}

36
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantIdProvider.cs Normal file
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using Microsoft.AspNetCore.Http;
namespace MultiTenancySample.ServiceDefaults
{
public class TenantIdProvider(IHttpContextAccessor httpContextAccessor) : ITenantIdProvider
{
public async Task<string?> GetTenantIdAsync()
{
HttpContext httpContext = httpContextAccessor.HttpContext ?? new DefaultHttpContext();
const string tenantKey = "tenant";
if (httpContext.Request.Headers.TryGetValue(tenantKey, out var headerValues))
{
return headerValues.First();
}
if (httpContext.Request.Query.TryGetValue(tenantKey, out var queryValues))
{
return queryValues.First();
}
if (httpContext.Request.Cookies.TryGetValue(tenantKey, out var cookieValue))
{
return cookieValue;
}
if (httpContext.Request.RouteValues.TryGetValue(tenantKey, out var routeValue))
{
return routeValue?.ToString();
}
return await Task.FromResult<string?>(null);
}
}
}

17
samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/TenantMiddleware.cs Normal file
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using Microsoft.AspNetCore.Http;
namespace MultiTenancySample.ServiceDefaults
{
public class TenantMiddleware(ICurrentTenant currentTenant, ITenantIdProvider tenantProvider) : IMiddleware
{
public async Task InvokeAsync(HttpContext context, RequestDelegate next)
{
string? tenantId = await tenantProvider.GetTenantIdAsync();
using (currentTenant.SetTenant(tenantId))
{
await next(context);
}
}
}
}

43
samples/MultiTenancySample/MultiTenancySample.sln Normal file
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.9.34728.123
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MultiTenancySample.SchemaIsolationService", "MultiTenancySample.SchemaIsolationService\MultiTenancySample.SchemaIsolationService.csproj", "{57818F02-DC4F-44CD-89A6-75D00AB5640C}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MultiTenancySample.DatabaseIsolationService", "MultiTenancySample.DatabaseIsolationService\MultiTenancySample.DatabaseIsolationService.csproj", "{340A9AE9-C3FA-4555-86AF-395780D2B89B}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MultiTenancySample.FieldIsolationService", "MultiTenancySample.FieldIsolationService\MultiTenancySample.FieldIsolationService.csproj", "{0B3EB138-AE17-4EB0-B282-88777F6D5FCA}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MultiTenancySample.ServiceDefaults", "MultiTenancySample.ServiceDefaults\MultiTenancySample.ServiceDefaults.csproj", "{CF4169D1-AB89-42FD-B209-FCBA9B6F0816}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{57818F02-DC4F-44CD-89A6-75D00AB5640C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{57818F02-DC4F-44CD-89A6-75D00AB5640C}.Debug|Any CPU.Build.0 = Debug|Any CPU
{57818F02-DC4F-44CD-89A6-75D00AB5640C}.Release|Any CPU.ActiveCfg = Release|Any CPU
{57818F02-DC4F-44CD-89A6-75D00AB5640C}.Release|Any CPU.Build.0 = Release|Any CPU
{340A9AE9-C3FA-4555-86AF-395780D2B89B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{340A9AE9-C3FA-4555-86AF-395780D2B89B}.Debug|Any CPU.Build.0 = Debug|Any CPU
{340A9AE9-C3FA-4555-86AF-395780D2B89B}.Release|Any CPU.ActiveCfg = Release|Any CPU
{340A9AE9-C3FA-4555-86AF-395780D2B89B}.Release|Any CPU.Build.0 = Release|Any CPU
{0B3EB138-AE17-4EB0-B282-88777F6D5FCA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{0B3EB138-AE17-4EB0-B282-88777F6D5FCA}.Debug|Any CPU.Build.0 = Debug|Any CPU
{0B3EB138-AE17-4EB0-B282-88777F6D5FCA}.Release|Any CPU.ActiveCfg = Release|Any CPU
{0B3EB138-AE17-4EB0-B282-88777F6D5FCA}.Release|Any CPU.Build.0 = Release|Any CPU
{CF4169D1-AB89-42FD-B209-FCBA9B6F0816}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{CF4169D1-AB89-42FD-B209-FCBA9B6F0816}.Debug|Any CPU.Build.0 = Debug|Any CPU
{CF4169D1-AB89-42FD-B209-FCBA9B6F0816}.Release|Any CPU.ActiveCfg = Release|Any CPU
{CF4169D1-AB89-42FD-B209-FCBA9B6F0816}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {201289BC-2E55-46AF-AD01-B3D4288D9904}
EndGlobalSection
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20
samples/MultiTenancySample/README.md Normal file
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@ -0,0 +1,20 @@
# 零框架多租户设计方案
多租户应用程序是一种软件架构设计，允许单个实例的软件服务多个客户，每个客户被称为一个租户，租户之间的数据自动隔离的，租户之间的数据不会相互影响，租户和用户是一对多的关系。
## 零度框架中实现多租户
由于每个系统的需求不同，零度框架没有提供多租户的通用解决方案，但我们提供了三种多租户设计的思路，并提供了示例代码，以便于开发者根据自己的需求来实现多租户设计。
## 基于单表字段隔离租户数据
单表多租户设计是指在一个表中存储多个租户的数据，通过在表中增加一个 TenantId 字段来区分不同租户的数据，使用全局查询过滤器来过滤租户数据，使用拦截器来保存租户数据。
## 基于多数据库隔离租户数据
多数据库多租户设计是指为每个租户创建一个独立的数据库，通过数据库连接字符串来区分不同租户的数据，使用拦截器来设置数据库连接字符串。
## 基于单数据库架构隔离租户数据
基于 Schema 的多租户设计是指为每个租户创建一个独立的 Schema 名称 ，通过 Schema 来区分不同租户的数据，使用拦截器来设置 Schema 名称。

6
samples/MultiTenancySample/global.json Normal file
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{
"sdk": {
"version": "8.0.204",
"rollForward": "latestFeature"
}
}

1
samples/README.md
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@ -1 +0,0 @@
# 示例代码