.net core api +swagger(一个简单的入门demo 使用codefirst+mysql/mssql)

using Microsoft.Entity workCore;

namespace Core.Model
{
    public class Data  : DbContext
    {
        //构造方法
        public Data (DbContextOptions<Data > options)
            :  (options)
        { }

        #region 数据区域
        public DbSet<User> User { get; set; }
        #endregion

    }
}

   //mysql连接
            services.AddDbContextPool<Data >(options =>
options.UseMySql(Configuration.GetConnectionString(\"MySqlConnection\")));

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

namespace Core.api.Controllers
{
    [Produces(\"application/json\")]
    [Route(\"api/admin/[controller]\")]
    [ApiController]
    public class UserController : Controller
    {

        private readonly Data  _context;
        public UserController(Data  context)
        {
            _context = context;
        }
        #region  

        /// <summary>
        /// 获取单个
        /// </summary>
        /// <param name=\"id\">Id</param>
        /// <returns></returns>
        [HttpGet(\"{id}\")]
        public JsonResult GetById(string id)
        {
            var tt = _context.Set<User>().Where(c => c.id == id).ToList();
            //_context.Set<User>().Add(us);
            //_context.SaveChanges();
            return Json(tt);
        }
        /// <summary>
        /// 添加
        /// </summary>
        /// <param name=\"entity\"></param>
        /// <returns></returns>
        [HttpPost]
        public JsonResult Add(User entity = null)
        {
            _context.Set<User>().Add(entity);
            int num = _context.SaveChanges();

            if (entity == null)
                return Json(\"参数为空\");
            if (num > 0) { return Json(\"成功\"); }
            else { return Json(\"失敗\"); }
        }
        /// <summary>
        /// 编辑 
        /// </summary>
        /// <param name=\"entity\"></param>
        /// <returns></returns>
        [HttpPut]
        [Route(\"User\")]
        public JsonResult Update(User entity = null)
        {

            _context.Set<User>().Update(entity);
            int num = _context.SaveChanges();
            if (entity == null)
                return Json(\"参数为空\");
            if (num > 0) { return Json(\"成功\"); }
            else { return Json(\"失敗\"); }
        }

        /// <summary>
        /// 删除 
        /// </summary>
        /// <param name=\"ids\"></param>
        /// <returns></returns>
        [HttpDelete]
        public JsonResult Dels(string ids = null)
        {
            if (ids.Length == 0)
                return Json(\"参数为空\");
            var tt = _context.Set<User>().Where(c => c.id == ids).First();
            _context.Set<User>().Remove(tt);
            int num = _context.SaveChanges();
            if (num > 0) { return Json(\"成功\"); }
            else { return Json(\"失敗\"); }
        }
        #endregion
    }
}

     #region Swagger
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc(\"v1\", new Info
                {
                    Version = \"v1.1.0\",
                      = \"Ray WebAPI\",
                    De ion = \"框架集合\",
                    TermsOfService = \"None\",
                    Contact = new Swashbuckle.AspNetCore.Swagger.Contact { Name = \"RayWang\", Email = \"2271272653@qq.com\", Url = \"http://www.cnblogs.com/RayWang\" }
                });
                //添加读取注释服务  nuget  Microsoft.Extensions.PlatformAbstractions
                var  Path = PlatformServices.Default.Application.Application Path;
                var  Path = Path.Combine( Path, \"Core.api. \");//此处为生成 文档
                c.Include Comments( Path);
               
            });
            #endregion

  #region Swagger
            app.UseSwagger();
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint(\"/swagger/v1/swagger.json\", \"ApiHelp V1\");
            });
            #endregion