2.模块化开发

Abp每一个项目都是模块，按模块开发，模块依赖型的

[DependsOn] (依赖)

Abp的核心就是模块依赖

namespace AbpDemo
{
    [DependsOn(typeof(AbpAspNetCoreMvcModule))]
    public class AbpDemoModule:AbpModule
    {
        /// <summary>
        /// 服务依赖注入
        /// </summary>
        /// <param name="context"></param>
        public override void ConfigureServices(ServiceConfigurationContext context)
        {
            base.ConfigureServices(context);
        }

        /// <summary>
        /// 中间件配置
        /// </summary>
        /// <param name="context"></param>
        public override void OnApplicationInitialization(ApplicationInitializationContext context)
        {
            base.OnApplicationInitialization(context);
        }
    }
}

2.把启动类里面的依赖注入builder.Services.XXX转移到模块类的ConfigureServices

3.把启动类的app.UseXXX使用中间件等代码转移到OnApplicationInitialization

调整完后Program.cs启动类变成

using AbpDemo;

var builder = WebApplication.CreateBuilder(args);
// 重新注册 Configuration 不加启动会报错
builder.Services.ReplaceConfiguration(builder.Configuration);
//添加自定义模块
builder.Services.AddApplication<AbpDemoModule>();
//* 同上等效代码
//* 添加自定义模块 DemoWebApiModule
//builder.Services.AddApplication<DemoWebApiModule>(options => {
//options.Services.ReplaceConfiguration(builder.Configuration); // 重新注册 Configuration
//});
var app = builder.Build();
app.InitializeApplication();
app.Run();

Module类：

using Volo.Abp;
using Volo.Abp.AspNetCore.Mvc;
using Volo.Abp.Modularity;

namespace AbpDemo
{
        [DependsOn(
        typeof(AbpAspNetCoreMvcModule),
        typeof(AbpAutofacModule)
        )]
    public class AbpDemoModule : AbpModule
    {
        /// <summary>
        /// 服务依赖注入
        /// </summary>
        /// <param name="context"></param>
        public override void ConfigureServices(ServiceConfigurationContext context)
        {

            context.Services.AddControllersWithViews();

        }

        /// <summary>
        /// 中间件配置
        /// </summary>
        /// <param name="context"></param>
        public override void OnApplicationInitialization(ApplicationInitializationContext context)
        {
            var app = context.GetApplicationBuilder();

            if (!context.GetEnvironment().IsDevelopment())
            {
                app.UseExceptionHandler("/Home/Error");
            }
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(
              end =>
              {
                  end.MapControllerRoute(
                      name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}"
                );
              }
                );

        }
    }
}

项目启动即可