【ASP.NET Core】AddMvc和AddMvcCore的区别

发布时间：2020-12-16 09:18:35 所属栏目：asp.Net 来源：网络整理

导读：AddMvcCore() method only adds the core MVC services. AddMvc() method adds all the required MVC services. AddMvc() method calls AddMvcCore() method internally. AddMvcCore()更加简洁，只添加了MVC核心服务。而AddMvc()添加了MVC所需要的所有组件

AddMvcCore() method only adds the core MVC services.

AddMvc() method adds all the required MVC services.

AddMvc() method calls AddMvcCore() method internally.

　　AddMvcCore()更加简洁，只添加了MVC核心服务。

　　而AddMvc()添加了MVC所需要的所有组件。

　　AddMvc()内部调用了AddMvcCore()，这也就使得AddMvcCore()更加重要。

　　ASP.Net是开源项目，>github地址

　　贴出AddMvc源码会更加清楚。

public static IMvcBuilder AddMvc(this IServiceCollection services)
        {
            if (services == null)
            {
                throw new ArgumentNullException(nameof(services));
            }

            var builder = services.AddMvcCore(); // 从这里开始，都是以AddMvcCore()为基础进行添加的各种服务。

            builder.AddApiExplorer();
            builder.AddAuthorization();

            AddDefaultFrameworkParts(builder.PartManager);

            // Order added affects options setup order

            // Default framework order
            builder.AddFormatterMappings();
            builder.AddViews();
            builder.AddRazorViewEngine();
            builder.AddRazorPages();
            builder.AddCacheTagHelper();

            // +1 order
            builder.AddDataAnnotations(); // +1 order

            // +10 order
            builder.AddJsonFormatters();

            builder.AddCors();

            return new MvcBuilder(builder.Services,builder.PartManager);
        }

　　AddMvcCore源码：

 1 public static IMvcCoreBuilder AddMvcCore(this IServiceCollection services)
 2         {
 3             if (services == null)
 4             {
 5                 throw new ArgumentNullException(nameof(services));
 6             }
 7 
 8             var partManager = GetApplicationPartManager(services);
 9             services.TryAddSingleton(partManager);
10 
11             ConfigureDefaultFeatureProviders(partManager);
12             ConfigureDefaultServices(services);
13             AddMvcCoreServices(services);
14 
15             var builder = new MvcCoreBuilder(services,partManager);
16 
17             return builder;
18         }

转自油管>ASP NET Core AddMvc vs AddMvcCore

（编辑：李大同）

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