[开发测试].net core 初体验

.net core 未来预测会火，随便写一个先练习熟悉一下。

现在主流前后端分离，所以后台采用webapi

层级结构大概这样,WebAPI 授权和鉴权 用JWT 先简单看一下

测试：

运行JWT

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输入用户名密码获取token

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运行web api

地址：http://localhost:5000/swagger/index.html

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测试创建博客文章

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填好刚才的token

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测试创建接口

?基础仓库代码段?

using SamBlog.IRepository;
using SamBlog.Model;
using SqlSugar;
using SqlSugar.IOC;
using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;

namespace SamBlog.Repository
{
  public class BaseRepository<TEntity> : SimpleClient<TEntity>, IBaseRepository<TEntity> where TEntity : class, new()
  {
    public BaseRepository(ISqlSugarClient context=null):base(context)
    {
        base.Context = DbScoped.Sugar;
        // 创建数据库
        base.Context.DbMaintenance.CreateDatabase();
        // 创建表
        base.Context.CodeFirst.InitTables(
            typeof(BlogNews),
            typeof(TypeInfo),
            typeof(WriterInfo)
            );
        }
    public async Task<bool> CreateAsync(TEntity entity)
    {
      return await base.InsertAsync(entity);
    }
    public async Task<bool> DeleteAsync(int id)
    {
      return await base.DeleteByIdAsync(id);
    }

    public async Task<bool> EditAsync(TEntity entity)
    {
      return await base.UpdateAsync(entity);
    }
    //导航查询
    public virtual async Task<TEntity> FindAsync(int id)
    {
      return await base.GetByIdAsync(id);
    }

    public async Task<TEntity> FindAsync(Expression<Func<TEntity, bool>> func)
    {
      return await base.GetSingleAsync(func);
    }

    public virtual async Task<List<TEntity>> QueryAsync()
    {
      return await base.GetListAsync();
    }

    public virtual async Task<List<TEntity>> QueryAsync(Expression<Func<TEntity, bool>> func)
    {
      return await base.GetListAsync(func);
    }

    public virtual async Task<List<TEntity>> QueryAsync(int page, int size, RefAsync<int> total)
    {
      return await base.Context.Queryable<TEntity>()
        .ToPageListAsync(page, size, total);
    }

    public virtual async Task<List<TEntity>> QueryAsync(Expression<Func<TEntity, bool>> func, int page, int size, RefAsync<int> total)
    {
      return await base.Context.Queryable<TEntity>()
        .Where(func)
        .ToPageListAsync(page, size, total);
    }
  }
}

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博客文章的增删改查接口代码段

using AutoMapper;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using SamBlog.IService;
using SamBlog.Model;
using SamBlog.Model.DTO;
using SamBlog.WebApi.Untility.ApiResult;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace SamBlog.WebApi.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    [Authorize]
    public class BlogNewsController : ControllerBase
    {
        private readonly IBlogNewsService _iBlogNewsService;
        public BlogNewsController(IBlogNewsService iblogNewsService)
        {
            this._iBlogNewsService = iblogNewsService;
        }

        [HttpGet("BlogNews")]
        public async Task<ActionResult<ApiResult>> GetBlogNews()
        {
            int id = Convert.ToInt32(this.User.FindFirst("Id").Value);
            var data = await _iBlogNewsService.QueryAsync(c => c.WriterId == id);
            if (data == null) return ApiResultHelper.Error("没有更多的文章");
            return ApiResultHelper.Success(data);
        }
        [HttpPost("Create")]
        public async Task<ActionResult<ApiResult>> Create(string title,string content,int typeid)
        {
            BlogNews blogNews = new BlogNews
            {
                BrowseCount = 0,
                Content = content,
                LikeCount = 0,
                Time = DateTime.Now,
                Title = title,
                TypeId = typeid,
                WriterId=1
                //WriterId = Convert.ToInt32(this.User.FindFirst("Id").Value)
            };
            bool result =await _iBlogNewsService.CreateAsync(blogNews);
            if (!result) return ApiResultHelper.Error("添加失败，服务器发生错误");
            return ApiResultHelper.Success(blogNews);
        }
        [HttpDelete("Delete")]
        public async Task<ActionResult<ApiResult>>Delete(int id)
        {
            bool result = await _iBlogNewsService.DeleteAsync(id);
            if(!result) return ApiResultHelper.Error("删除失败！");
            return ApiResultHelper.Success(result);
        }

        [HttpPut("Edit")]
        public async Task<ActionResult<ApiResult>> Edit(int id, string title, string content, int typeid)
        {
            var blogNews = await _iBlogNewsService.FindAsync(id);
            if (blogNews == null) return ApiResultHelper.Error("没有找到该文章");
            blogNews.Title = title;
            blogNews.Content = content;
            blogNews.TypeId = typeid;
            bool result = await _iBlogNewsService.EditAsync(blogNews);
            if (!result) return ApiResultHelper.Error("修改失败");
            return ApiResultHelper.Success(blogNews);
        }
        [HttpGet("BlogNewsPage")]
        public async Task<ApiResult> GetBlogNewsPage([FromServices] IMapper iMapper, int page, int size)
        {
            RefAsync<int> total = 0;
            var blognews = await _iBlogNewsService.QueryAsync(page, size, total);
            try
            {
                var blognewsDTO = iMapper.Map<List<BlogNewsDTO>>(blognews);
                return ApiResultHelper.Success(blognewsDTO, total);
            }
            catch (Exception)
            {
                return ApiResultHelper.Error("AutoMapper映射错误");
            }
        }
    }
}

总结：

.net core 写后台和传统的 其实差不太多。现在发布docker 还有点问题，微软要在2021年11月份发布新的VS IDE 到时候在试试。

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