Asp.net core WebApi 使用Swagger生成接口帮助文档

一.新建一个WebAPI接口，命名为First

测试代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace MY.Controllers
{
    /// <summary>
    /// 严格遵循RestFull 风格 get、post、put、delete
    /// </summary>
    [Route("api/[controller]")]
    [ApiController] // First 当成一个资源  对完提供增删改查的Api
    public class FirstController : ControllerBase
    {

        [Route("Get")]
        [HttpGet]
        public string Get()
        {
            return "得到一串数据";
        }


        [Route("Info")]
        [HttpGet]
        public string Info()
        {
            return Newtonsoft.Json.JsonConvert.SerializeObject(new
            {
                Id = 1456,
                Name = "yhh"
            });
        }

        [Route("GetInfo")]
        [HttpGet]
        public string GetInfo(int id,string name)
        {
            return Newtonsoft.Json.JsonConvert.SerializeObject(new
            {
                Id = id,
                Name = name
            });
        }
    }
}

二.右键项目依赖项，点击管理Nuget程序包，安装如下图组件

 三.在项目Startup添加配置项

  /// <summary>
    /// Core 项目中导出都是IOC + DI
    /// </summary>
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }


        /// <summary>
        /// 被运行时调用的  还有什么？
        /// 执行且只执行一次；
        /// </summary>
        /// <param name="services"></param>

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            #region 注册Swagger服务 
            services.AddSwaggerGen(s =>
            {
                #region 注册 Swagger
                s.SwaggerDoc("V1", new OpenApiInfo()
                {
                    Title = "Study",
                    Version = "version-01",
                    Description = "webapi配置swagger学习"
                });
                #endregion 
            });
            #endregion
            services.AddControllers();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            } 
            #region 使用Swagger中间件
            app.UseSwagger();
            app.UseSwaggerUI(s =>
            {
                s.SwaggerEndpoint("/swagger/V1/swagger.json", "test1");
            });
            #endregion


            //使用中间件
            app.UseRouting();

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

　　四.启动项目，然后浏览器输入 http://localhost:50786/swagger/index.html(注:端口和域名依自己的电脑为准)