.net core 6.0 mvc项目

1、.net  core 6.0添加startup文件

在 .NET 6 项目中使用 Startup.cs - 腾讯云开发者社区-腾讯云 (tencent.com)

using SystemProjectOne;

var builder = WebApplication.CreateBuilder(args);
//设置配置源
var startup = new Startup(builder.Configuration);
//ConfigureServices主要是配置依赖注入（DI）。
startup.ConfigureServices(builder.Services);

var app = builder.Build();
startup.Configure(app, builder.Environment);
app.Run();

//新建Startup参考：https://zhuanlan.zhihu.com/p/537282897
//https://www.cnblogs.com/stulzq/p/7845026.html
using Microsoft.AspNetCore.Builder;

namespace SystemProjectOne
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }
        public IConfiguration Configuration { get; }
        //ConfigureServices方法中配置内置容器的服务
        //https://www.cnblogs.com/stulzq/p/7761128.html
        public void ConfigureServices(IServiceCollection services)
        {
            #region 注入自定义Service服务

            #endregion

            services.AddRazorPages();
        }
        public void Configure(WebApplication app, IWebHostEnvironment env)
        {
            if (!app.Environment.IsDevelopment())
            {
                app.UseExceptionHandler("/Error");
                app.UseHsts();
            }
            app.UseHttpsRedirection();
            app.UseStaticFiles();
            app.UseRouting();
            app.UseAuthorization();
            app.MapRazorPages();

        }       
    }
}

 2、.net core 6.0自动注入自定义service服务

采用读取json配置的方式自动注入service服务

第一：参考博客读取json文件配置内容：c#读取json文件配置内容并转为list - じ逐梦 - 博客园 (cnblogs.com)

　　　注意：json配置文件存储的名字为类库的名字

第二：获取配置后的service后选用反射方式注入

在startup中注入

  //ConfigureServices方法中配置内置容器的服务
        //https://www.cnblogs.com/stulzq/p/7761128.html
        public void ConfigureServices(IServiceCollection services)
        {
            #region 注入自定义Service服务 BHP引擎
            //配置文件中读取注入类
            List<UsBhpItem> bhpItems = UsServiceAdd.Us_BHP_GetConfig();

            //自动注入
            UsServiceAdd.ServiceDiAdd(services, bhpItems);
            #endregion

            services.AddRazorPages();
        }

    public static class UsServiceAdd
    {    
        #region 2.自动注入服务类

        public static IServiceCollection ServiceDiAdd(this IServiceCollection services, List<UsBhpItem> bhplist)
        {
            IServiceCollection services1 = null;
            for (var i = 0; i < bhplist.Count; i++)
            {
                //不注入基类
                if (!bhplist[i].IfBaseService)
                {
                    bhplist[i].BaseServiceName = "absege";
                }
                services1 = ServiceDiAdd(services, bhplist[i].PlugDLLScoped, bhplist[i].BaseServiceName, bhplist[i].InJectType);
            }
            return services1;
        }
        #endregion

        #region 3. 通过反射自动注入Di的扩展方法
        /// <summary>
        /// 通过反射自动注入Di的扩展方法
        /// </summary>
        /// <param name="services"></param>
        /// <param name="serviceAssembly">需要注入的程序集</param>
        /// <param name="baseServiceName">需要注入的类的基类, 如果没有指定基类,默认注入类库下面所有的类</param>      
        ///<param name="InJectType">注入类型</param>
        /// <returns></returns>
        private static IServiceCollection ServiceDiAdd(this IServiceCollection services, string serviceAssembly, string? baseServiceName = null, InJectType InJectType = InJectType.Scope)
        {
            try
            {
                //读配置文件获取service程序集名称
                Assembly assembly = Assembly.Load(serviceAssembly);
                //获取程序集下所有类
                Type[] types = assembly.GetTypes();

                types.ToList().ForEach(t =>
                {
                    if (string.IsNullOrEmpty(baseServiceName) ||
                    (t.BaseType != null && t.BaseType.ToString() == baseServiceName))
                    {
                        if (InJectType == InJectType.Scope)
                        {
                            services.AddScoped(t);
                        }
                        else if (InJectType == InJectType.Single)
                        {
                            services.AddSingleton(t);
                        }
                        else if (InJectType == InJectType.Transient)
                        {
                            services.AddTransient(t);
                        }

                    }
                });
                return services;
            }
            catch (Exception ex)
            {
                var mess = ex;
                throw;
            }
        }
        #endregion
    }

 会引发出现一个错误：

 原因：没有在项目中引用 SystemProjectOne.Repository(要注入的类) ，引用这个错误解决

参考文件.netCore 反射 ：Could not load file or assembly 系统找不到指定文件 - mengtree - 博客园 (cnblogs.com)

3、asp.net core mvc 设置区域

添加区域

在startup文件夹中编辑路径（在其Configure方法中编辑）

 //添加路由
 app.UseRouting();

 app.UseEndpoints(endpoints =>
 {
     endpoints.MapControllerRoute(
         name: "areas",
         pattern: "{area:exists}/{controller=UsMain}/{action=Index}/{id?}");
     endpoints.MapControllerRoute(
         name: "default",
          pattern: "{controller=SystemBase}/{action=Index}/{id?}");  //默认打开页面路径
 });

 app.UseMvc(routes =>
 {
     routes.MapRoute(
           name: "default",
           template: "{action}/{id}",
           defaults: new {controller = "SystemBase", action = "Index", id = "" }  //默认打开页面路径
        );
 });

asp.net core mvc 设置区域中的控制器为默认页面

参考文献:https://blog.csdn.net/puzi0315/article/details/118487004