- 增加 UnitOfWorkManager 工作单元管理器，实现多种传播事务；#289

Examples/aspnetcore_transaction/Startup.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using aspnetcore_transaction.Controllers;
+using FreeSql;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.HttpsPolicy;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace aspnetcore_transaction
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+            Fsql = new FreeSql.FreeSqlBuilder()
+                 .UseConnectionString(FreeSql.DataType.Sqlite, @"Data Source=|DataDirectory|\test_trans.db")
+                 .UseAutoSyncStructure(true)
+                 .UseMonitorCommand(cmd => Trace.WriteLine(cmd.CommandText))
+                 .UseNoneCommandParameter(true)
+                 .Build();
+        }
+
+        public IConfiguration Configuration { get; }
+        public static IFreeSql Fsql { get; private set; }
+
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddControllersWithViews();
+
+            services.AddSingleton<IFreeSql>(Fsql);
+            services.AddScoped<UnitOfWorkManager>();
+            services.AddFreeRepository(null, typeof(Startup).Assembly);
+            services.AddScoped<SongService>();
+        }
+
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+            Console.OutputEncoding = Encoding.GetEncoding("GB2312");
+            Console.InputEncoding = Encoding.GetEncoding("GB2312");
+
+            app.UseHttpMethodOverride(new HttpMethodOverrideOptions { FormFieldName = "X-Http-Method-Override" });
+            app.UseDeveloperExceptionPage();
+            app.UseRouting();
+            app.UseEndpoints(a => a.MapControllers());
+        }
+    }
+}