.net core MassTransit请求/响应是否需要common.dll';微服务架构中的什么?
我将在.NETCore中实现我的应用程序,在请求/响应模式中使用RabbitMQ和MassTransit 以下是receiver的代码(它接收用户名和密码,然后将用户名和提供者密钥发送给客户端): 下面是我的客户端的代码(发送用户创建请求):.net core MassTransit请求/响应是否需要common.dll';微服务架构中的什么?,.net-core,rabbitmq,masstransit,.net Core,Rabbitmq,Masstransit,我将在.NETCore中实现我的应用程序,在请求/响应模式中使用RabbitMQ和MassTransit 以下是receiver的代码(它接收用户名和密码,然后将用户名和提供者密钥发送给客户端): 下面是我的客户端的代码(发送用户创建请求): var-bus=BusConfigurator.ConfigureBus((cfg,主机)=> { ReceiveEndpoint(主机,“profile.test.service”,e=> { }); }); TaskUtil.Await(()=>bus
var-bus=BusConfigurator.ConfigureBus((cfg,主机)=>
{
ReceiveEndpoint(主机,“profile.test.service”,e=>
{
});
});
TaskUtil.Await(()=>bus.StartAsync());
尝试
{
IRequestClient=CreateRequestClient(总线);
var userName=“userName”;
var password=“password”;
Task.Run(异步()=>
{
var response=await client.Request(new CreateUserCommand())
{
用户名=用户名,
密码=密码
});
WriteLine(“用户提供程序密钥:{0}”,response.ProviderKey);
WriteLine(“用户用户名:{0}”,response.Username);
}).Wait();
}
捕获(例外情况除外)
{
WriteLine(“异常!!!OMG!!!{0}”,ex);
}
最后
{
公共汽车站();
}
}
静态IRequestClient CreateRequestClient(IBusControl总线控制)
{
var serviceAddress=新Uri(RabbitMqConstants.RabbitMqUri+RabbitMqConstants.OAuth2ServiceQueue);
var客户端=
CreateRequestClient(服务地址,TimeSpan.FromSeconds(60),TimeSpan.FromSeconds(60));
返回客户;
}
关键是双方(请求端和响应端)是不同的项目,没有共同的.ddl。换句话说,它们不共享IUserCreatedEvent和ICreateUserCommand接口。当运行服务器代码(应答器)时,它会创建一个名为“WebHost.My.ServiceBus.Messages:ICreateUserCommand”的交换,它是名称空间和接口名称的组合。因为我的客户端代码中没有这样的名称空间,所以当响应者发送提供者密钥和用户名时,消息会发送到一个跳过的交换,我无法得到响应
据我搜索和理解,命令和事件接口必须在两个项目(请求者和响应者)之间共享,但由于我正在基于项目API编写代码,我不希望它们共享名称空间!
如何克服大众运输中的这种限制
非常感谢使用相同的名称空间/接口名称,只要消息定义兼容,它就可以工作。只要NS+接口名称匹配,那么它是否是相同的DLL并不重要。
//BusConfiguration.cs
public static IBusControl ConfigureBus(
Action<IRabbitMqBusFactoryConfigurator, IRabbitMqHost> registrationAction = null)
{
return Bus.Factory.CreateUsingRabbitMq(cfg =>
{
var host = cfg.Host(new Uri(RabbitMqConstants.RabbitMqUri), hst =>
{
hst.Username(RabbitMqConstants.UserName);
hst.Password(RabbitMqConstants.Password);
});
registrationAction?.Invoke(cfg, host);
});
}
public void ConfigureBus()
{
bus = BusConfigurator.ConfigureBus((cfg, host) =>
{
cfg.ReceiveEndpoint(host, RabbitMqConstants.OAuth2ServiceQueue, e =>
{
e.Consumer<CreateUserCommandConsumer>();
});
});
TaskUtil.Await(() => bus.StartAsync());
}
//CreateUserCommandConsumer.cs
public class CreateUserCommandConsumer : IConsumer<ICreateUserCommand>
{
public async Task Consume(ConsumeContext<ICreateUserCommand> context)
{
await context.RespondAsync<IUserCreatedEvent>(new
{
UserName = context.Message.UserName,
ProviderKey = "q1w2e3d3r"
});
}
}
//ICreateUserCommand.cs
namespace WebHost.My.ServiceBus.Messages
{
public interface ICreateUserCommand
{
string UserName { get; set; }
string Password { get; set; }
}
}
//IUserCreatedEvent.cs
namespace WebHost.My.ServiceBus.Messages.CreateUser
{
public interface IUserCreatedEvent
{
string UserName { get; set; }
string ProviderKey { get; set; }
}
}
var bus = BusConfigurator.ConfigureBus((cfg, host) =>
{
cfg.ReceiveEndpoint(host, "profile.test.service", e =>
{
});
});
TaskUtil.Await(() => bus.StartAsync());
try
{
IRequestClient<ICreateUserCommand, IUserCreatedEvent> client = CreateRequestClient(bus);
var userName = "username";
var password = "password";
Task.Run(async () =>
{
var response = await client.Request(new CreateUserCommand()
{
UserName = userName,
Password = password
});
Console.WriteLine("User Provider key: {0}", response.ProviderKey);
Console.WriteLine("User Username: {0}", response.UserName);
}).Wait();
}
catch (Exception ex)
{
Console.WriteLine("Exception!!! OMG!!! {0}", ex);
}
finally
{
bus.Stop();
}
}
static IRequestClient<ICreateUserCommand, IUserCreatedEvent> CreateRequestClient(IBusControl busControl)
{
var serviceAddress = new Uri(RabbitMqConstants.RabbitMqUri + RabbitMqConstants.OAuth2ServiceQueue);
var client =
busControl.CreateRequestClient<ICreateUserCommand, IUserCreatedEvent>(serviceAddress, TimeSpan.FromSeconds(60), TimeSpan.FromSeconds(60));
return client;
}