Asp.Net Core MVC和Web API不同
起因
思来想去还是觉得每天学的东西是很好的,坚持下来成为习惯,就更好了.今天来看一下在Asp.Net Core中,MVC和Web API区别有哪些.MVC和Web API区别
源码位置: /src/Mvc/Mvc/src/MvcServiceCollectionExtensions.cs
MVC使用的是AddControllersWithViews,Web API使用的是AddControllers,从名字看上MVC的功能更多的.实际上也是.下面我们从代码上进行验证.
先看Web API的注册服务的源码:
public static IMvcBuilder AddControllers(this IServiceCollection services, Action<MvcOptions> configure)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
// This method excludes all of the view-related services by default.
var builder = AddControllersCore(services);
if (configure != null)
{
builder.AddMvcOptions(configure);
}
return new MvcBuilder(builder.Services, builder.PartManager);
}
private static IMvcCoreBuilder AddControllersCore(IServiceCollection services)
{
// This method excludes all of the view-related services by default.
return services
.AddMvcCore()
.AddApiExplorer()
.AddAuthorization()
.AddCors()
.AddDataAnnotations()
.AddFormatterMappings();
}源码分析到AddControllerCore中,避免层次太深,容易凌乱.
下面看看MVC的AddControllersWithViews的源码:
public static IMvcBuilder AddControllersWithViews(this IServiceCollection services)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
var builder = AddControllersWithViewsCore(services);
return new MvcBuilder(builder.Services, builder.PartManager);
}
private static IMvcCoreBuilder AddControllersWithViewsCore(IServiceCollection services)
{
var builder = AddControllersCore(services) //Web API是也是用AddControllersCore
.AddViews() //注册View(视图相关)
.AddRazorViewEngine() //注册Razor视图引擎
.AddCacheTagHelper();
AddTagHelpersFrameworkParts(builder.PartManager);
return builder;
}从代码分析得出,MVC和Web API公用了注册Controller(控制器)相关的代码.MVC比Web API的多了View(视图)和Razor视图引擎相关的组件.
秋风
2020-08-18