我尝试从.NET应用程序订阅ActiveMQ主题,下面是我的代码(我使用的是Apache NMS 1.7.0):
Intent myIntent = new Intent(context, NewsDetails.class);
上面的代码编译成功...但是连接到ActiveMQ服务器的尝试失败。以下是失败的陈述......
using Apache.NMS;
using Apache.NMS.ActiveMQ;
...
public void Start()
{
try {
// connect to ActiveMQ
long timestamp = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
string providerUrl = String.Format("tcp://{0}:{1}", Host, Port);
IConnectionFactory connectionFactory = new ConnectionFactory(providerUrl);
connection = connectionFactory.CreateConnection(); // fails here
connection.ClientId = String.Format("{0}/{1}/{2}", AssemblyInfo.Title, Username, timestamp);
connection.Start();
// create consumer and register callback for incoming messages
ISession session = connection.CreateSession(AcknowledgementMode.AutoAcknowledge);
IMessageConsumer messageConsumer = session.CreateConsumer(
new Apache.NMS.ActiveMQ.Commands.ActiveMQTopic(TopicName), MessageSelector, false
);
messageConsumer.Listener += new MessageListener(OnMessage);
} catch (Exception e) {
_.Logger.Error(Resources.ErrorStartingConsumer, e.Message);
}
}
public void OnMessage(IMessage message)
{
if (!(message is ITextMessage)) {
// 'message' is not a text message
_.Logger.Warn(Resources.SkippedMessage, message.NMSMessageId);
} else {
string textMessage = (message as ITextMessage).Text;
foreach (string acceptedProtocol in AcceptedProtocols) {
if (textMessage.StartsWith(acceptedProtocol + ":")) {
// process message here
return;
}
}
// the url contained in 'message' is not supported
_.Logger.Warn(Resources.SkippedMessage, message.NMSMessageId);
}
}
...这是错误信息:
connection = connectionFactory.CreateConnection();
我有点困惑,因为即使我的客户端第一次尝试连接ActiveMQ服务器,我也会收到此错误。
我还尝试设置Channel was inactive for too long: tcp://172.16.126.194:61615
,但没办法。任何帮助都会非常感激。
答案 0 :(得分:1)
在我们的例子中,端口61615是一个安全端口...所以我只需要像这样修改连接字符串:
string providerUrl = String.Format("ssl://{0}:{1}", Host, Port);
经过这次小修改后,一切都按预期进行。
答案 1 :(得分:0)
就我而言,我使用了错误的端口号来访问代理。我必须使用安全端口61616。