Question

我忙于C# MQ，我想在Q上添加文字，但不确定我做的是不是错了。得到以下错误。

未处理的类型＆＃39; System.NullReferenceException＆＃39; 发生在Data.Manager.dll中，发生在＆＃34; Put1Queue.Put（myPutMessage，Put1PutMsgOptions）;＆＃34;

以下是代码：

class Program
{

    static void Main(string[] args)
    {
        MQ mq = new MQ();
        Console.Read();
    }
}

public class MQ
{

    private MQQueue queue;
    private MQMessage queueMessage;
    private MQQueueManager queueManager;

    private string queueManagerName;
    private string host;
    private int port;
    private string channel;
    private string queueName;

    public String putMsg;
    public String markerMsg;
    private MQQueueManager Put1QueueManager;
    private MQPutMessageOptions Put1PutMsgOptions;
    private MQQueue Put1Queue;

    private MQQueueManager Put2QueueManager;
    private MQPutMessageOptions Put2PutMsgOptions;
    private MQQueue Put2Queue;

    private MQQueueManager myQueueManager;
    private MQPutMessageOptions myPutMsgOptions;
    private MQQueue myQueue;

    private Hashtable queueProperties;

    public MQ()
    {
        setupTestData();

    }

    public void setupTestData()
    {

        markerMsg = "<msglamdav5_xml><system message_id=\"\" message_type=\"\" correlation_id=\"\" date_time_stamp=\"\" originator=\"\" destination=\"\" queue_manager=\"\" txn_req_number=\"\" txn_req_id=\"\"/><security user_name=\"G9022O2 \" user_type=\"\" user_identity=\"G90226K     \" user_language=\"\" environment=\"PPEX    \" host_name=\"\"/><errors/><data><txn_ctl bus_txn_phase=\"3\" bus_txn_session_id=\"\" /><data_key party_no=\"0\"/><tasks><task txn_id=\"MARK<uniqueNum> \" event_type=\"2\" external_txn_id=\"04255841252012-06-22-04.56.14.960000            \"><task_data><servicedata inputdata=\"0124473471\"/></task_data><task_metadata><lists/></task_metadata></task></tasks></data></msglamdav5_xml>";

        try { 
        // Setup connection information
        MQEnvironment.Hostname = "SLHUBQ2.sanlam.co.za";
        MQEnvironment.properties.Add(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_CLIENT);
        MQEnvironment.properties.Add(MQC.CCSID_PROPERTY, 437);
        MQEnvironment.Channel = "CLIENTS";//"EFL.SRVCONN";
        MQEnvironment.Port = 1615;//lr.eval_int("<Port>");


        Put1QueueManager = new MQQueueManager("SLHUBQ2");
        int openOptions = MQC.MQOO_OUTPUT | MQC.MQOO_INQUIRE | MQC.MQOO_FAIL_IF_QUIESCING;

        Put1Queue = Put1QueueManager.AccessQueue("LAMDA.PERF.REQUEST", openOptions, null, null, null);

        Put1PutMsgOptions = new MQPutMessageOptions();

        Put1PutMsgOptions.Options = MQC.MQPMO_NEW_MSG_ID | MQC.MQPMO_NEW_CORREL_ID;

        }
        catch (Exception error)
        {

        }

        try {
                MQMessage myPutMessage = new MQMessage();
                myPutMessage.ClearMessage();
                myPutMessage.Persistence = MQC.MQPER_PERSISTENT;
                myPutMessage.Persistence = MQC.MQPER_NOT_PERSISTENT;
                myPutMessage.CorrelationId = MQC.MQCI_NONE;
                myPutMessage.MessageId  = MQC.MQMI_NONE;

                myPutMessage.Format = MQC.MQFMT_STRING; 
                myPutMessage.ReplyToQueueName= "LAMDA.PERF.RESPONSE";

                myPutMessage.WriteString(markerMsg);


              Put1Queue.Put(myPutMessage, Put1PutMsgOptions);




        }
        catch (MQException error)
        {


        }


        try
        {
            Put1Queue.Close();
            Put1QueueManager.Disconnect();

        }
        catch (Exception error)
        {

        }



    }



    }
}

Answer 1

问题可能在您的代码行中

Put1Queue = Put1QueueManager.AccessQueue("LAMDA.PERF.REQUEST", openOptions, null, null, null);

可能是＆＃39; AccessQueue＆＃39;方法返回＆＃39; null＆＃39;结果。所以你可以尝试检查：

您的队列名称是否正确。
选项是否正确。您可以尝试传递MQC.MQOO_OUTPUT + MQC.MQOO_FAIL_IF_QUIESCING选项。

Answer 2

如何在每个catch语句中打印出异常，因为我打赌你在AccessQueue上得到了RC 2035，因此Put1Queue对于Put方法是null。即。

catch (MQException mqex)
{
   System.Console.Out.WriteLine("MQException cc=" + mqex.CompletionCode + " : rc=" + mqex.ReasonCode);
}
catch (System.IO.IOException ioex)
{
   System.Console.Out.WriteLine("IOException ioex=" + ioex);
}
catch (Exception ex)
{
   System.Console.Out.WriteLine("Exception ex=" + ex);
}

MQ放置消息C＃

2 个答案: