在尝试使用 c# 和 ibm mq 客户端(9.1.5)时,我想使用同步点功能。
var getMessageOptions = new MQGetMessageOptions();
getMessageOptions = new MQGetMessageOptions();
getMessageOptions.Options += MQC.MQGMO_WAIT + MQC.MQGMO_SYNCPOINT;
getMessageOptions.WaitInterval = 20000; // 20 seconds wait
Hashtable props = new Hashtable();
props.Add(MQC.HOST_NAME_PROPERTY, "localhost");
props.Add(MQC.CHANNEL_PROPERTY, "DOTNET.SVRCONN");
props.Add(MQC.PORT_PROPERTY, 3636);
MQQueueManager qm = new MQQueueManager("QM", props);
MQQueue queue = qm.AccessQueue("Q1", MQC.MQOO_INPUT_AS_Q_DEF);
try
{
var message = new MQMessage();
queue.Get(message, getMessageOptions);
string messageStr = message.ReadString(message.DataLength);
SaveTheMessageToAFile(messageStr);
//qm.Commit();
}
catch (MQException e) when (e.Reason == 2033)
{
// Report exceptions other than "no messages in the queue"
Log.Information("No messages in the queue");
}
catch (Exception ex)
{
Log.Error($"Exception when trying to capture a message from the queue:
}
如果我不调用 commit,我本来希望每次都能看到相同的消息。队列管理器是否需要启用某些功能?