CapSupport 的使用
CapSupport 是在CAP的操作上做了一些封装
目的是让事务同时执行或者同时回滚
startup
services.AddCapSupport((optaion) => { optaion.SuccessTransactionfulName = "CapTest.ReceiveSuccessful"; optaion.RollbackTransactionfulName = "CapTest.ReceiveRollback"; optaion.CommitTransaction = (tran) => { Console.WriteLine("事务执行成功"); ((MsSqlContext)tran).Session.CommitTransaction(); }; optaion.RollbackTransaction = (tran) => { Console.WriteLine("事务执行失败"); ((MsSqlContext)tran).Session.RollbackTransaction(); }; });
Controller01
MsSqlContext dbContext = new MsSqlContext(""); dbContext.Session.BeginTransaction(); try { var count = dbContext.Insert<AAA>(new AAA() { ID = 1, Name = "AAA" }); var action = _publisher.AsyncPerform(1, dbContext, new Person { Name = "Foo", Age = 11 }, "CapTest05.Subscribe"); var result = await action; Console.WriteLine(result.TransactionResult); } catch (Exception e) { _publisher.RollbackMandatory(1); }
Controller02
[CapSubscribe("CapTest05.Subscribe")] public async Task Subscribe(TransactionContent person) { Console.WriteLine("触发"); MsSqlContext dbContext = new MsSqlContext(""); dbContext.Session.BeginTransaction(); try { var count = dbContext.Insert<CCC>(new CCC() { ID = 1, Name = "CCC" }); var task = _publisher.AsyncPerform(3, dbContext, new Person { Name = "Foo", Age = 11 }, "CapTest04.Subscribe"); var result = await task; Console.WriteLine(count); switch (result.TransactionResult) { case SubscriptionServiceEnum.Successful: _publisher.TransactionSuccessful(person); break; case SubscriptionServiceEnum.Failure: _publisher.TransactionRollback(person); break; default: break; } } catch (Exception e) { _publisher.RollbackMandatory(3); _publisher.TransactionRollback(person); } }
Controller03
[CapSubscribe("CapTest04.Subscribe")] public void Subscribe(TransactionContent person) { MsSqlContext dbContext = new MsSqlContext(""); dbContext.Session.BeginTransaction(); try { var count = dbContext.Insert<BBB>(new BBB() { ID = 1, Name = "BBB" }); Console.WriteLine("触发"); //throw new Exception("测试异常"); _publisher.TransactionSuccessful(person, dbContext); } catch (Exception e) { _publisher.TransactionRollback(person, dbContext); } }
他可以在执行第一个事务中执行另一个事务,并且在另一个事务执行完毕后决定第一个事务是否成功
可以等待一个订阅完成