NetCore+Dapper WebApi架构搭建（二）：底层封装

看下我们上一节搭建的架构，现在开始从事底层的封装

1、首先需要一个实体的接口IEntity

 namespace Dinner.Dapper
 {
     public interface IEntity<TPrimaryKey>
     {
         TPrimaryKey Id { get; set; }
     }
 }

2、由于所有的数据库实体都是有主键的，所以这里定义一个BaseModel，这里我用的主键是Guid，你们可以换成int

 using System;

 namespace Dinner.Dapper
 {
     public class BaseModel : IEntity<Guid>
     {
         public Guid Id { get; set; }
     }
 }

3、接下来是封装Dapper的SqlServer配置DataBaseConfig（Redis的配置你们可以忽略）,不要忘记添加Dapper的Nuget包

 using StackExchange.Redis;
 using System.Data;
 using System.Data.SqlClient;

 namespace Dinner.Dapper
 {
     public class DataBaseConfig
     {
         #region SqlServer链接配置

         private static string DefaultSqlConnectionString = @"Data Source=localhost;Initial Catalog=Dinner;User ID=sa;Password=123456;";
         private static string DefaultRedisString = "localhost, abortConnect=false";
         private static ConnectionMultiplexer redis;

         public static IDbConnection GetSqlConnection(string sqlConnectionString = null)
         {
             if (string.IsNullOrWhiteSpace(sqlConnectionString))
             {
                 sqlConnectionString = DefaultSqlConnectionString;
             }
             IDbConnection conn = new SqlConnection(sqlConnectionString);
             conn.Open();
             return conn;
         }

         #endregion

         #region Redis链接配置

         private static ConnectionMultiplexer GetRedis(string redisString = null)
         {
             if (string.IsNullOrWhiteSpace(redisString))
             {
                 redisString = DefaultRedisString;
             }
             if (redis == null || redis.IsConnected)
             {
                 redis = ConnectionMultiplexer.Connect(redisString);
             }
             return redis;
         }

         #endregion
     }
 }

4、然后是仓储基接口IRepositoryBase，添加了基本的增删改查和一个无参的存储过程

 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;

 namespace Dinner.Dapper
 {
     public interface IRepositoryBase<T>
     {
         Task Insert(T entity, string insertSql);

         Task Update(T entity, string updateSql);

         Task Delete(Guid Id, string deleteSql);

         Task<List<T>> Select(string selectSql);

         Task<T> Detail(Guid Id, string detailSql);

         /// <summary>
         /// 无参存储过程
         /// </summary>
         /// <param name="SPName"></param>
         /// <param name="args"></param>
         /// <returns></returns>
         Task<List<T>> ExecQuerySP(string SPName);
     }
 }

5、仓储基实现类RepositoryBase继承仓储基接口，简单实现增删改查和无参的存储过程

 using Dapper;
 using System;
 using System.Collections.Generic;
 using System.Data;
 using System.Linq;
 using System.Threading.Tasks;

 namespace Dinner.Dapper
 {
     public class RepositoryBase<T> : IRepositoryBase<T>
     {
         public async Task Delete(Guid Id, string deleteSql)
         {
             using (IDbConnection conn = DataBaseConfig.GetSqlConnection())
             {
                 await conn.ExecuteAsync(deleteSql, new { Id = Id });
             }
         }

         public async Task<T> Detail(Guid Id, string detailSql)
         {
             using (IDbConnection conn = DataBaseConfig.GetSqlConnection())
             {
                 //string querySql = @"SELECT Id, UserName, Password, Gender, Birthday, CreateDate, IsDelete FROM dbo.Users WHERE Id=@Id";
                 return await conn.QueryFirstOrDefaultAsync<T>(detailSql, new { Id = Id });
             }
         }

         /// <summary>
         /// 无参存储过程
         /// </summary>
         /// <param name="SPName"></param>
         /// <returns></returns>
         public async Task<List<T>> ExecQuerySP(string SPName)
         {
             using (IDbConnection conn = DataBaseConfig.GetSqlConnection())
             {
                 return await Task.Run(() => conn.Query<T>(SPName, null, null, true, null, CommandType.StoredProcedure).ToList());
             }
         }

         public async Task Insert(T entity, string insertSql)
         {
             using (IDbConnection conn = DataBaseConfig.GetSqlConnection())
             {
                 await conn.ExecuteAsync(insertSql, entity);
             }
         }

         public async Task<List<T>> Select(string selectSql)
         {
             using (IDbConnection conn = DataBaseConfig.GetSqlConnection())
             {
                 //string selectSql = @"SELECT Id, UserName, Password, Gender, Birthday, CreateDate, IsDelete FROM dbo.Users";
                 return await Task.Run(()=>conn.Query<T>(selectSql).ToList());
             }
         }

         public async Task Update(T entity, string updateSql)
         {
             using (IDbConnection conn = DataBaseConfig.GetSqlConnection())
             {
                 await conn.ExecuteAsync(updateSql, entity);
             }
         }
     }
 }

上面这些就是底层基本的封装，下一节我们来添加实体和仓储

源码地址： https://github.com/wangyulong0505/Dinner