private void ReceiveMessage(MqQueueName queueName, Action<string> action)
{
IModel channel = null;
try
{
if (_connection == null || !_connection.IsOpen)
NewConnection();
//创建通道
channel = _connection.CreateModel();
//创建队列
channel.QueueDeclare(queueName.ToString(), true, false, false, null);
channel.BasicQos(0, 1, false);
var consumer = new QueueingBasicConsumer(channel);
channel.BasicConsume(queueName.ToString(), false, consumer);
while (true)
{
string message = "";
try
{
var ea = consumer.Queue.Dequeue();
message = Encoding.UTF8.GetString(ea.Body);
//处理消息
action(message);
//发送确认回执
channel.BasicAck(ea.DeliveryTag, false);
}
catch (Exception ex)
{
LogHelper.Fatal("RabbitMQ消费者处理消息失败。消息内容：" + queueName + "," + message, ex);
}
}
}
catch (Exception ex)
{
LogHelper.Fatal("RabbitMQ接收和解析消息失败。", ex);
}
finally
{
if (channel != null)
{
channel.Close();
}
}
}
/// <summary>
/// 发送消息到MQ服务器
/// </summary>
/// <param name="queueName">队列名称</param>
/// <param name="json">JSON格式的消息</param>
public void SendMessage(MqQueueName queueName, string json)
{
if (_queue.Count > _maxLength)
{
lock (_queue.SyncRoot)
{
Monitor.Wait(_queue.SyncRoot);
}
}
_queue.Enqueue(queueName + "," + json);
lock (_queueReadLock)
{
Monitor.Pulse(_queueReadLock);
}
}
/// <summary>
/// 为消息队列创建多个消费者线程
/// </summary>
/// <param name="queueName"></param>
/// <param name="action"></param>
/// <param name="batchSize"></param>
private void BatchReceiveMessage(MqQueueName queueName, Action<string> action, int batchSize)
{
for (int i = 0; i < batchSize; i++)
{
Thread thread = new Thread((o) =>
{
object[] os = o as object[];
ReceiveMessage((MqQueueName)os[0], os[1] as Action<string>);
});
thread.IsBackground = true;
thread.Start(new object[] { queueName, action });
_rcvMsgThreadListInExclusiveMode.Add(thread);
}
}
/// <summary>
/// 使用共享模式接收消息。共享模式创建多个消息读取线程，用于所有消息队列的消息读取
/// </summary>
/// <param name="queueName"></param>
/// <param name="action"></param>
public void ReceiveMessageBySharingMode(MqQueueName queueName, Action<string> action)
{
if (_msgReceiverDic.ContainsKey(queueName))
return;
else
_msgReceiverDic.Add(queueName, action);
DisableReceiveMsgInExclusiveMode();
if (_rcvMsgThreadListInSharingMode.Count == 0)
BatchReceiveMessage(MqConcurrentSizeInSharingMode);
}
