我正在尝试找到一种将对象传递到 Azure 队列的方法。我找不到方法来做到这一点。
正如我所见,我可以传递字符串或字节数组,这对于传递对象来说不太舒服。
是否可以将自定义对象传递到队列?
谢谢!
最佳答案
您可以使用以下类作为示例:
[Serializable]
public abstract class BaseMessage
{
public byte[] ToBinary()
{
BinaryFormatter bf = new BinaryFormatter();
byte[] output = null;
using (MemoryStream ms = new MemoryStream())
{
ms.Position = 0;
bf.Serialize(ms, this);
output = ms.GetBuffer();
}
return output;
}
public static T FromMessage<T>(CloudQueueMessage m)
{
byte[] buffer = m.AsBytes;
T returnValue = default(T);
using (MemoryStream ms = new MemoryStream(buffer))
{
ms.Position = 0;
BinaryFormatter bf = new BinaryFormatter();
returnValue = (T)bf.Deserialize(ms);
}
return returnValue;
}
}
然后是 StdQueue(强类型队列):
public class StdQueue<T> where T : BaseMessage, new()
{
protected CloudQueue queue;
public StdQueue(CloudQueue queue)
{
this.queue = queue;
}
public void AddMessage(T message)
{
CloudQueueMessage msg =
new CloudQueueMessage(message.ToBinary());
queue.AddMessage(msg);
}
public void DeleteMessage(CloudQueueMessage msg)
{
queue.DeleteMessage(msg);
}
public CloudQueueMessage GetMessage()
{
return queue.GetMessage(TimeSpan.FromSeconds(120));
}
}
然后,您所要做的就是继承BaseMessage:
[Serializable]
public class ParseTaskMessage : BaseMessage
{
public Guid TaskId { get; set; }
public string BlobReferenceString { get; set; }
public DateTime TimeRequested { get; set; }
}
并创建一个适用于该消息的队列:
CloudStorageAccount acc;
if (!CloudStorageAccount.TryParse(connectionString, out acc))
{
throw new ArgumentOutOfRangeException("connectionString", "Invalid connection string was introduced!");
}
CloudQueueClient clnt = acc.CreateCloudQueueClient();
CloudQueue queue = clnt.GetQueueReference(processQueue);
queue.CreateIfNotExist();
this._queue = new StdQueue<ParseTaskMessage>(queue);
希望这有帮助!
关于c# - 在 Azure 队列存储中传递对象消息,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8550702/