csharp 独立类中间件是基于约定的

Posted 2021-05-12

public class HelloMiddleware
    {
        private RequestDelegate _next;

        public HelloMiddleware(RequestDelegate next)
        {
            _next = next;
        }

        public async Task Invoke(HttpContext context)
        {
            await context.Response.WriteAsync("Hello world from HelloMiddleware!\n");
            await _next.Invoke(context);
            await context.Response.WriteAsync("\nHello world from HelloMiddleware!\n");
        }
    }
    
    
    app.UseMiddleware<HelloMiddleware>();