AA.FrameWork

AA.Framework is built on the popular open source class library of NET Core

Completed list

• log：Log4net
• object mapper：automapper
• orm：dapper（Dapper-FluentMap,Dommel）
• MQ：RabbitMQ.Client
• Redis：StackExchange.Redis
• message bus：MassTransit
• more.....

Nuget Packages

Package	nuget	description
AA.Dapper	nuget	基于dapper，Dapper-FluentMap 开发 ， 支持工作单元、仓储模式和原生dapper的操作
AA.Log4Net	nuget	基于Log4net开发，提供常用的日志操作类
AA.FrameWork	nuget	基础框架
AA.Redis	nuget	基于StackExchange.Redis开发，提供各种redis操作和基于redis的分布式锁
AA.AutoMapper	nuget	基于AutoMapper开发，对象映射
AA.ServiceBus	nuget	基于MassTransit开发的服务总线 ；很方便的应用在event bus 和 publish/subscribe 场景
AA.AspNetCore	nuget	aspnetcore常用类集合

AA.Dapper用法

实体映射配置

使用DommelEntityMap类映射属性名称。创建一个派生类，在构造函数中设置Map方法，可指定某个属性映射到数据库列名

   public class UserInfoMap : DommelEntityMap<UserInfo>
    {
        public UserInfoMap()
        {
            ToTable("Sys_UserInfo");//映射具体的表名
            Map(p => p.SysNo).IsKey();//指定主键 ,IsIdentity是否自增
            Map(p=>p.GmtCreate).ToColumn("GmtCreateDate"); //属性名和数据库列名 可以不同
            Map(p=>p.LastLoginDate).Ignore();//一些计算属性，可以忽略不需要跟数据库列进行映射
        }
    }

使用MapConfiguration.Init方法，把映射类初始化，后续就可以使用了

 public static void InitMapCfgs()
        {
            var fluentMapconfig = new List<Action<FluentMapConfiguration>>();
            fluentMapconfig.Add(cfg =>
            {
                cfg.AddMap(new UserInfoMap());
            });
            MapConfiguration.Init(fluentMapconfig);
        }

开始使用AA.Dapper

使用DapperContext设置数据库连接和数据库类型是sqlserver还是mysql

    public class AADapperContext : DapperContext
    {
        public AADapperContext() : base(new NameValueCollection()
        {
            ["aa.dataSource.AaCenter.connectionString"] = "Data Source =.; Initial Catalog = AaCenter;User ID = sa; Password = 123;",
            ["aa.dataSource.AaCenter.provider"] = "SqlServer"
        })
        { }
    }

仓储包含了大部分的操作，同时支持Async操作

IDapperRepository<UserInfo> userInfoRepository = new DapperRepository<UserInfo>();

插入实体

 var user = new UserInfo()
            {
                UserName = "chengTian",
                RealName = "成天",
                GmtCreate = DateTime.Now,
                GmtModified = DateTime.Now
            };
  var result = userInfoRepository.Insert(user);

修改实体

 var user = userInfoRepository.Get(1);
            user.GmtModified = DateTime.Now;
 var result = userInfoRepository.Update(user);

获取实体

   var user = userInfoRepository.Get(1);//By 主键
   var users = userInfoRepository.GetAll();//所有
   var users = userInfoRepository.Select(p => p.UserName == "chengTian");//谓词

删除实体

   var user = userInfoRepository.Get(1);
   var result = userInfoRepository.Delete(user);

分页

var result = _userRepository.From(sql =>  
            {  
                sql.Select()  
                   .Where(x=>x.UserName==input.UserName)  
                   .Page(input.PageIndex, input.PageSize);  
            });  

事务

using (var dbTransaction = dapperContext.BeginTransaction())  
 {  
     try  
     {  
         var user = new UserInfo()  
         {  
             UserName = "chengTian",  
             RealName = "成天",  
             GmtCreate = DateTime.Now,  
             GmtModified = DateTime.Now,  
             LastLoginDate = DateTime.Now  
         };  
         userInfoRepository.Insert(user);  
         userAlbumRepository.Insert(new UserAlbum  
         {  
             Pic = "image/one.jgp"  
         });  
         dapperContext.Commit();  
     }  
     catch (Exception ex)  
     {  
         dbTransaction.Rollback();  
     }  
 }  
 

动态Expression

var where = DynamicWhereExpression.Init<User>();  
if (input.RealName != "")  
{  
   where = where.And(x => x.RealName.Contains(input.RealName));  
}  
if (input.SysNo!=Guid.Empty)   
{  
    where = where.And(x=>x.SysNo==input.SysNo);  
}  
if (input.SysNos.Any())   
{  
    where = where.And(x=>input.SysNos.Contains(x.SysNo));  
}  
var result = _userRepository.From(sql =>  
{  
    sql.Select()  
       .Where(where)  
       .Page(input.PageIndex, input.PageSize);  
});  

支持Dapper原生操作

操作基本的封装都是单表的操作，可以满足一部分业务开发，有些业务场景编写sql还是比较合适的比如报表和一些复杂的查询，推荐使用原生dapper的操作

public class UserInfoRepository : DapperRepository<UserInfo>, IUserInfoRepository
    {
      
        public IEnumerable<UserInfo> QueryAll()
        {
            var result = DapperContext.Current.DataBase.Query<UserInfo>("SELECT * from  [Sys_UserInfo]");//实例
            return result;
        }
    }

AA.Log4Net 用法

1. log4net.config 配置，并将log4net.config的属性->复制到输出目录->设置为->始终复制
2. Log4NetLogger.Use("配置文件名或者路径+配置文件名"); 例如：log4net.config文件在根目录下，Log4NetLogger.Use("log4net.config");如果在自定义文件中；例如config/log4net.config 则Log4NetLogger.Use("config/log4net.config")
3. ILog log= Logger.Get(typeof(类)); log.Debug("example");

AA.ServiceBus 用法

生产者（事件和命令两种类型）

实例化bus

 //事件
 IBusControl busControl = ServiceBusManager.Instance.UseRabbitMq(rabbitMqUri, rabbitMqUserName, rabbitMqPassword)
                         .BuildEventProducer();
 //命令
 ISendEndpoint busControl = ServiceBusManager.Instance.UseRabbitMq(rabbitMqUri, rabbitMqUserName, rabbitMqPassword)
                         .BuildCommandProducer(queueName);

实例化bus之后可以使用发送和发布两个方法

  //命令
  TaskUtil.Await(busControl.Send<SubmitOrder>(new
            {
                Id = 10
            }));
   //事件          
   TaskUtil.Await(busControl.Publish<OrderSubmitted>(new
            {
                Id = 1
            }));

消费者

  [Fact]
        public void TestConsumer()
        {
            Log4NetLogger.Use("Log4Net/log4net.config");
            string rabbitMqUri = "rabbitmq://localhost:5672";
            string rabbitMqUserName = "";
            string rabbitMqPassword = "";
            string queueName = "order.queue";

            var busControl = ServiceBusManager.Instance.UseRabbitMq(rabbitMqUri, rabbitMqUserName, rabbitMqPassword)
             .RegisterConsumer<SubmitOrderCommandConsumer>(queueName)//注册命令消费者
             .RegisterConsumer<OrderSubmittedEventConsumer>(null)//注册事件消费者
             .Build();
            busControl.Start();

        }

定义消费者需要实现接口IConsumer

public class OrderSubmittedEventConsumer : IConsumer<OrderSubmitted>
    {
        public async Task Consume(ConsumeContext<OrderSubmitted> context)
        {
            var @event = context.Message;

            var result = $"OrderSubmittedEvent {@event.Id.ToString()}";
            ILog log = Logger.Get(typeof(OrderSubmittedEventConsumer));
            log.Debug(result);
            //do somethings...
        }
    }


    public class SubmitOrderCommandConsumer : IConsumer<SubmitOrder>
    {
        public async Task Consume(ConsumeContext<SubmitOrder> context)
        {
            var command = context.Message;

            var result = $"CreateFooCommand {command.Id.ToString()}";
            ILog log = Logger.Get(typeof(SubmitOrderCommandConsumer));
            log.Debug(result);
            //do somethings...
        }
    }

AA.AutoMapper用法

实现IMapperConfiguration接口，创建映射规则配置

 public class WebMapperConfigurations : IMapperConfiguration
    {
        public int Order { get { return 0; } }

        public Action<IMapperConfigurationExpression>  GetConfiguration()
        {
            Action<IMapperConfigurationExpression> action = cfg =>
            {
                cfg.CreateMap<UserVm, UserInput>();
            };
            return action;
        }
    }

在程序startup调用配置

     var mapperConfig = new WebMapperConfigurations();
     AutoMapperConfiguration.Init(new List<Action<IMapperConfigurationExpression>> { mapperConfig.GetConfiguration() });
     ObjectMapping.ObjectMapManager.ObjectMapper = new AutoMapperObjectMapper();

利用扩展方法MapTo执行映射

 [Fact]
        public void TestMap()
        {
            //init
            Init();
            UserVm userVm = new UserVm { Id = 1, Name = "成天" ,Remark="微信公众号:dotNet知音"};
            var userDto = userVm.MapTo<UserInput>();
            //var userDto2 = userVm.MapTo<UserVm,UserInput>();

        }