.NET WebAPI 控制器巧用 GroupName，让 Swagger UI 分类呈现华丽升级

在日常开发 .NET WebAPI 项目时，Swagger 是一个不可或缺的工具，用于自动生成和展示 API 文档。然而随着 API 数量的增长，Swagger UI 中的接口列表可能会变得相当繁杂，这无疑增加了开发者理解和使用的难度。为了解决这一问题，我们可以利用 GroupName 这一特性来对 API 控制器进行分类和分组。

第一步：进行swagger注册找到Startup.cs 在类中添加

        public void ConfigureServices(IServiceCollection services)
        {

            services.AddControllers().AddNewtonsoftJson();//Microsoft.AspNetCore.Mvc.NewtonsoftJson
            services.AddOptions();
            #region Swagger  分组
            services.AddSwaggerGen(c =>
            {
                var data = Configuration.GetSection("SwaggerConfig").Get<List<SwaggerConfig>>();

                Configuration.GetSection("SwaggerConfig").Get<List<SwaggerConfig>>().ForEach(group =>
                {
                    c.SwaggerDoc(group.GroupName, new OpenApiInfo { Title = group.Title, Version = group.Version , Description="EDHR接口说明文档", Contact = new OpenApiContact { Name = "zhanping.zeng", Email = "zhanping.zeng@sinocare.com", } });
                });
                var xmlFileName = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
                var modelsfile = Path.Combine(AppContext.BaseDirectory, "EDHR.Model.xml");
                var modelsphth = Path.Combine(AppContext.BaseDirectory, modelsfile);
                c.IncludeXmlComments(modelsphth, true);  //true:显示Models层注释
                c.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, "Sino.MesEDHR.API.xml"), true);

            });
            #endregion

        }

第二步：在Startup中添加启用 swagger的代码

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseSwagger();
            }
            //启用中间件服务生成Swagger
            app.UseSwagger();
            #region Swagger 分组
            app.UseKnife4UI(c =>
            {
                c.RoutePrefix = string.Empty;
                Configuration.GetSection("SwaggerConfig").Get<List<SwaggerConfig>>().ForEach(group =>
                {
                    c.SwaggerEndpoint($"/swagger/{group.GroupName}/swagger.json", group.Title);  //分组显示
                });
            });
           #endregion

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }

　第三步：appsettings.json配置文件中添加

"SwaggerConfig": [
    {
      "GroupName": "SemiFinished",
      "Title": "半成本",
      "Version": "V1"
    },
    {
      "GroupName": "GoldBar",
      "Title": "金试条",
      "Version": "V1"
    },
    {
      "GroupName": "PackageRecords",
      "Title": "包材记录",
      "Version": "V1"

    },
    {
      "GroupName": "WeighingRecord",
      "Title": "称重记录",
      "Version": "V1"
    }

  ]

最后就是对控制器进行分组标记的操作了

    [ApiExplorerSettings(GroupName = "GoldBar")]
    [Route("api/GoldBar")]
    [ApiController]
    public class GoldBarController : ControllerBase
    {
    
    }

我们启动看下呈现