- 当我看到这样的问题时，我会摇头。你不
了解 .NET VM（框架）中的面向对象概念和
垃圾收集。
- 另外，为什么不编写纯 C# 代码？
- 最后，在一个安全性非常重要的世界里，您的代码可以
不支持 SSL/TLS 和/或用户 ID 和密码身份验证。
(1) 请注意我在哪里定义 MQMessage 对象（非常重要）。
以下2个代码sn-ps在内存使用或速度上基本没有区别：
(A)
MQMessage msg = null;
while (true)
{
msg = new MQMessage();
get.Get(msg, gmo);
Console.WriteLine(msg.ReadString(msg.MessageLength));
}
(B)
MQMessage msg = new MQMessage();
while (true)
{
get.Get(msg, gmo);
Console.WriteLine(msg.ReadString(msg.MessageLength));
msg.ClearMessage();
msg.MessageId = MQC.MQMI_NONE;
msg.CorrelationId = MQC.MQCI_NONE;
}
我更喜欢 (A)，因为它更简洁、更易于阅读。
(2) 当你使用 'var' 时，你是在强迫 .NET 框架猜测你在做什么。做纯粹的面向对象编程。
即
MQMessage msg = new MQMessage();
(3)在MQQueueManager中显式设置通道名和连接名不允许设置MQ安全信息。此外，不要使用 MQEnvironment 类，因为它不是线程安全的。最好将所有信息放在一个 Hashtable 中并将 Hashtable 传递给 MQQueueManager 类。下面是一个使用 Hashtable 获取 MQ 连接信息的 MQ .NET 托管模式示例：
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using IBM.WMQ;
namespace MQTest02
{
class MQTest02
{
private Hashtable inParms = null;
private Hashtable qMgrProp = null;
private System.String qManager;
private System.String outputQName;
/*
* The constructor
*/
public MQTest02()
: base()
{
}
/// <summary> Make sure the required parameters are present.</summary>
/// <returns> true/false
/// </returns>
private bool allParamsPresent()
{
bool b = inParms.ContainsKey("-h") && inParms.ContainsKey("-p") &&
inParms.ContainsKey("-c") && inParms.ContainsKey("-m") &&
inParms.ContainsKey("-q");
if (b)
{
try
{
System.Int32.Parse((System.String)inParms["-p"]);
}
catch (System.FormatException e)
{
b = false;
}
}
return b;
}
/// <summary> Extract the command-line parameters and initialize the MQ variables.</summary>
/// <param name="args">
/// </param>
/// <throws> IllegalArgumentException </throws>
private void init(System.String[] args)
{
inParms = Hashtable.Synchronized(new Hashtable());
if (args.Length > 0 && (args.Length % 2) == 0)
{
for (int i = 0; i < args.Length; i += 2)
{
inParms[args[i]] = args[i + 1];
}
}
else
{
throw new System.ArgumentException();
}
if (allParamsPresent())
{
qManager = ((System.String)inParms["-m"]);
outputQName = ((System.String)inParms["-q"]);
qMgrProp = new Hashtable();
qMgrProp.Add(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_MANAGED);
qMgrProp.Add(MQC.HOST_NAME_PROPERTY, ((System.String)inParms["-h"]));
qMgrProp.Add(MQC.CHANNEL_PROPERTY, ((System.String)inParms["-c"]));
try
{
qMgrProp.Add(MQC.PORT_PROPERTY, System.Int32.Parse((System.String)inParms["-p"]));
}
catch (System.FormatException e)
{
qMgrProp.Add(MQC.PORT_PROPERTY, 1414);
}
if (inParms.ContainsKey("-u"))
qMgrProp.Add(MQC.USER_ID_PROPERTY, ((System.String)inParms["-u"]));
if (inParms.ContainsKey("-x"))
qMgrProp.Add(MQC.PASSWORD_PROPERTY, ((System.String)inParms["-x"]));
if (inParms.ContainsKey("-s"))
qMgrProp.Add(MQC.SECURITY_EXIT_PROPERTY, ((System.String)inParms["-s"]));
System.Console.Out.WriteLine("MQTest02:");
Console.WriteLine(" QMgrName ='{0}'", qManager);
Console.WriteLine(" Output QName ='{0}'", outputQName);
System.Console.Out.WriteLine("QMgr Property values:");
foreach (DictionaryEntry de in qMgrProp)
{
Console.WriteLine(" {0} = '{1}'", de.Key, de.Value);
}
}
else
{
throw new System.ArgumentException();
}
}
/// <summary> Connect, open queue, read a message, close queue and disconnect.
///
/// </summary>
/// <throws> MQException </throws>
private void testReceive()
{
MQQueueManager qMgr = null;
MQQueue queue = null;
int openOptions = MQC.MQOO_INPUT_AS_Q_DEF + MQC.MQOO_FAIL_IF_QUIESCING;
MQGetMessageOptions gmo = new MQGetMessageOptions();
MQMessage receiveMsg = null;
try
{
qMgr = new MQQueueManager(qManager, qMgrProp);
System.Console.Out.WriteLine("MQTest02 successfully connected to " + qManager);
queue = qMgr.AccessQueue(outputQName, openOptions, null, null, null); // no alternate user id
System.Console.Out.WriteLine("MQTest02 successfully opened " + outputQName);
receiveMsg = new MQMessage();
queue.Get(receiveMsg, gmo);
System.Console.Out.WriteLine("Message Data>>>" + receiveMsg.ReadString(receiveMsg.MessageLength));
}
catch (MQException mqex)
{
System.Console.Out.WriteLine("MQTest02 cc=" + mqex.CompletionCode + " : rc=" + mqex.ReasonCode);
}
catch (System.IO.IOException ioex)
{
System.Console.Out.WriteLine("MQTest02 ioex=" + ioex);
}
finally
{
try
{
queue.Close();
System.Console.Out.WriteLine("MQTest02 closed: " + outputQName);
}
catch (MQException mqex)
{
System.Console.Out.WriteLine("MQTest02 cc=" + mqex.CompletionCode + " : rc=" + mqex.ReasonCode);
}
try
{
qMgr.Disconnect();
System.Console.Out.WriteLine("MQTest02 disconnected from " + qManager);
}
catch (MQException mqex)
{
System.Console.Out.WriteLine("MQTest02 cc=" + mqex.CompletionCode + " : rc=" + mqex.ReasonCode);
}
}
}
/// <summary> main line</summary>
/// <param name="args">
/// </param>
// [STAThread]
public static void Main(System.String[] args)
{
MQTest02 mqt = new MQTest02();
try
{
mqt.init(args);
mqt.testReceive();
}
catch (System.ArgumentException e)
{
System.Console.Out.WriteLine("Usage: MQTest02 -h host -p port -c channel -m QueueManagerName -q QueueName [-u userID] [-x passwd] [-s securityExit]");
System.Environment.Exit(1);
}
catch (MQException e)
{
System.Console.Out.WriteLine(e);
System.Environment.Exit(1);
}
System.Environment.Exit(0);
}
}
}
要使用您的信息运行 MQTest02，它将是：
MQTest02.exe -h A1PATA00.WORLDSPAN.COM -p 1414 -m A1PATA00 -c ECACHE -q SPLASH.ECAC.2