SmartSql简介

0. Why

• 拥抱 跨平台 DotNet Core，是时候了。
• 高性能、高生产力，史上最轻量级的ORM。107kb

1. So SmartSql

• TargetFrameworks: .NETFramework 4.6 & .NETStandard 2.0
• SmartSql = MyBatis + Cache(Memory | Redis) + ZooKeeper + R/W Splitting + ……

2. 主要特性 (√ 为已完成，未打 √ 为计划特性)

1. 1 ORM
2. 1.1 Sync
3. 1.2 Async
4. 2 XmlConfig & XmlStatement -> Sql
5. 2.1 SmartSqlMapConfig & SmartSqlMap √ (是的，你猜对了，和MyBatis一样，通过XML配置分离SQL。)
6. 2.2 Config Hot Update ->ConfigWatcher & Reload (配置文件热更新：当你需要修改Sql的时候，直接修改SqlMap配置文件，保存即可。)
7. 3 读写分离 √
8. 3.1 读写分离 √
9. 3.2 多读库 权重筛选 √ （配置多读库，根据读库权重选举读库）
10. 4 日志 √
11. 4.1 基于 Microsoft.Extensions.Logging.Abstractions (当你需要跟踪调试的时候一切都是那么一目了然)
12. 5 Dynamic Repository
13. 5.1 SmartSql.DyRepository √ （解放你的双手，你来定义仓储接口，我来实现数据库访问）
14. 6 查询缓存 √ （热数据缓存，一个配置轻松搞定）
15. 6.1 SmartSql.Cache.Memory √
16. 6.1.1 Fifo √
17. 6.1.2 Lru √
18. 6.2 SmartSql.Cache.Redis √
19. 6.3 缓存事务一致性
20. 7 分布式配置插件
21. 7.1 IConfigLoader √ (配置文件加载器)
22. 7.2 LocalFileConfigLoader √ √ (本地文件配置加载器)
23. 7.2.1 Load SmartSqlMapSource Xml √
24. 7.3.1 Load SmartSqlMapSource Directory √
25. 7.3 SmartSql.ZooKeeperConfig √ (ZooKeeper 分布式配置文件加载器)

3. 性能

BenchmarkDotNet=v0.10.14, OS=Windows 10.0.16299.431 (1709/FallCreatorsUpdate/Redstone3)
Intel Core i7-4710MQ CPU 2.50GHz (Haswell), 1 CPU, 8 logical and 4 physical cores
Frequency=2435768 Hz, Resolution=410.5481 ns, Timer=TSC
.NET Core SDK=2.1.201
  [Host]     : .NET Core 2.0.7 (CoreCLR 4.6.26328.01, CoreFX 4.6.26403.03), 64bit RyuJIT
  DefaultJob : .NET Core 2.0.7 (CoreCLR 4.6.26328.01, CoreFX 4.6.26403.03), 64bit RyuJIT

　　

ORM	Type	Method	Mean	Error	StdDev	Rank	Gen 0	Gen 1	Gen 2	Allocated
SmartSql	SmartSqlBenchmarks	Query	101.6 ms	0.2226 ms	0.1738 ms	1	2437.5000	1062.5000	375.0000	13.37 MB
Native	NativeBenchmarks	Query_IsDBNull_GetValue	101.7 ms	0.4101 ms	0.3635 ms	1	2437.5000	1062.5000	375.0000	13.37 MB
Dapper	DapperBenchmarks	Query	104.4 ms	1.3195 ms	1.2342 ms	2	3375.0000	1375.0000	625.0000	17.64 MB
SmartSqlDapper	SmartSqlDapperBenchmarks	Query	105.7 ms	1.1697 ms	1.0941 ms	3	3750.0000	1437.5000	625.0000	19.47 MB
Native	NativeBenchmarks	Query_GetValue_DbNull	107.4 ms	1.0710 ms	1.0018 ms	4	3062.5000	1187.5000	500.0000	16.42 MB
SqlSugar	SqlSugarBenchmarks	Query	108.9 ms	0.4048 ms	0.3787 ms	5	2375.0000	1000.0000	312.5000	13.09 MB
EF	EFBenchmarks	SqlQuery	110.9 ms	0.6922 ms	0.6475 ms	6	11062.5000	-	-	34.13 MB
Chloe	ChloeBenchmarks	Query	14.5 ms	2.2600 ms	5.3711 ms	7	2375.0000	1000.0000	312.5000	13.07 MB
EF	EFBenchmarks	Query_NoTracking	126.4 ms	1.3197 ms	1.2344 ms	8	5937.5000	2250.0000	1062.5000	30.16 MB
EF	EFBenchmarks	SqlQuery_NoTracking	148.6 ms	0.8290 ms	0.7755 ms	9	7437.5000	2937.5000	1250.0000	37.79 MB

4. 安装 (NuGet)

Install-Package SmartSql

　　

5. 常规代码查询

ISmartSqlMapper SqlMapper = MapperContainer.Instance.GetSqlMapper();
SqlMapper.Query<T_Test>(new RequestContext
{
Scope = "T_Test",
SqlId = "GetList",
Request = new { Ids = new long[] { 1, 2, 3, 4 } }
});

　　

事务

 try
            {
                ISmartSqlMapper SqlMapper = MapperContainer.Instance.GetSqlMapper();
                SqlMapper.BeginTransaction();
                //BizCode
                SqlMapper.CommitTransaction();
            }
            catch (Exception ex)
            {
                SqlMapper.RollbackTransaction();
                throw ex;
            }

　　

6. 最佳实践

6.1 安装 SmartSql.DIExtension

Install-Package SmartSql.DIExtension

　　

6.2 注入依赖

services.AddSmartSql();
 services.AddRepositoryFactory();
 services.AddRepositoryFromAssembly((options) =>
 {
    options.AssemblyString = "SmartSql.Starter.Repository";
 });

　　

6.3 定义仓储接口

/// <summary>
    /// 属性可选： [SqlMap(Scope = "User")] ,不设置 则默认 Scope 模板：I{Scope}Repository
    /// 可传入自定义模板
    /// RepositoryBuilder builder=new RepositoryBuilder("I{Scope}DAL");
    /// </summary>
    public interface IUserRepository
    {
        /// <summary>
        /// 属性可选 [Statement(Execute = ExecuteBehavior.Auto,Id = "Query")]
        /// 默认 Execute：Auto ，自动判断 执行类型
        /// 默认 Id : 方法名
        /// </summary>
        /// <param name="reqParams"></param>
        /// <returns></returns>
        IEnumerable<User> Query(object reqParams);
        long GetRecord(object reqParams);
        User Get(object reqParams);
        long Insert(User entity);
        int Update(User entity);
        int Delete(User enttiy);
    }

　　

6.4 尽情享用

 public class UserService
    {
        private readonly ISmartSqlMapper _smartSqlMapper;
        private readonly IUserRepository _userRepository;

        public UserService(
             ISmartSqlMapper smartSqlMapper
            , IUserRepository userRepository)
        {
            _smartSqlMapper = smartSqlMapper;
            _userRepository = userRepository;
        }

        public long Add(AddRequest request)
        {
            int existsNum = _userRepository.Exists(new { request.UserName });
            if (existsNum > 0)
            {
                throw new ArgumentException($"{nameof(request.UserName)} has already existed!");
            }
            return _userRepository.Add(new Entitiy.User
            {
                UserName = request.UserName,
                Password = request.Password,
                Status = Entitiy.UserStatus.Ok,
                CreationTime = DateTime.Now,
            });
        }

        public void UseTransaction()
        {
            try
            {
                _smartSqlMapper.BeginTransaction();
                //Biz();
                _smartSqlMapper.CommitTransaction();
            }
            catch (Exception ex)
            {
                _smartSqlMapper.RollbackTransaction();
                throw ex;
            }
        }
    }

　　

7. 文档地址

• 在线阅读地址
• PDF
• Mobi
• ePub

services.AddSmartSql(); services.AddRepositoryFactory(); services.AddRepositoryFromAssembly((options) => {    options.AssemblyString = "SmartSql.Starter.Repository"; });--------------------- 作者：Ahoo 来源：CSDN 原文：https://blog.csdn.net/tsgx_1989/article/details/69055089 版权声明：本文为博主原创文章，转载请附上博文链接！