复杂数据（Protobuf）

StackExchange.Redis 还支持在 pub / sub 通道上发送字节，这里我们使用 protobuf-net 在发送之前将消息序列化为字节数组：

// definition of a message (marked up with Protobuf attributes)
[ProtoContract]
public class ChatMessage
{
    [ProtoMember(1)]
    public Guid Id { get; set; }
    [ProtoMember(2)]
    public string User { get; set; }
    [ProtoMember(3)]
    public string Text { get; set; }
}

// grab an instance of an ISubscriber
var subscriber = connection.GetSubscriber();

var message = new ChatMessage
{
    Id = Guid.NewGuid(), 
    User = "User 1234", 
    Text = "Hello World!"
};

using (var memoryStream = new MemoryStream())
{
    // serialize a ChatMessage using protobuf-net
    Serializer.Serialize(memoryStream, message);

    // publish the message to the 'chat' channel
    subscriber.Publish("chat", memoryStream.ToArray());
}

订阅者再次需要在收到消息时反序列化消息：

// grab an instance of an ISubscriber
var subscriber = connection.GetSubscriber();

// subscribe to messages over the 'chat' channel
subscriber.Subscribe("chat", (channel, bytes) => {
    using (var memoryStream = new MemoryStream(bytes))
    {
        var message = Serializer.Deserialize<ChatMessage>(memoryStream);

        // do something with the message
        Console.WriteLine($"{message.User} said {message.Text}");
    }
});