.net core API 使用swagger

第一种方法：直接添加swagger，会在app_start中生成SwaggerConfig，在该文件中配置相关内容（把生成xml打开）；

第二种方法：添加四个引用文件Swashbuckle.AspNetCore.Swagger 、Swashbuckle.AspNetCore.SwaggerGen、Swashbuckle.AspNetCore.SwaggerUI、Swashbuckle.AspNetCore；然后在startup文件中添加以下代码：

  public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1",new Microsoft.OpenApi.Models.OpenApiInfo { Title = "myApi", Version = "v1" });
                var xmlFile = $"{Assembly.GetEntryAssembly().GetName().Name}.xml";
                var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
                c.IncludeXmlComments(xmlPath);
            });
            services.AddMvcCore().AddApiExplorer();

        }

 public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc();
            app.UseSwagger();
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "myApi");
            });

        }