英文:
Getting JMSException connecting to IBM MQ from Java client
问题
我们正在尝试从Java客户端连接到IBM MQ。我们使用JMSAdmin工具为JNDI上下文生成了.bindings文件。在连接到IBM MQ时，我们遇到了以下异常：
ERR fmbaJMS JMSException: JMSWMQ0018: 无法使用连接模式“Client”和主机名“null”连接到队列管理器“<queue manager name>”
发送的主机名参数为空，而.bindings文件中正确地包含以下内容：
mq/RefAddr/30/Content=localhost(51410)
mq/RefAddr/30/Type=CRSHOSTS
这些条目指向本地主机和端口51410。
英文:
We are trying to connect to IBM MQ from a Java client. We have generated .bindings for JNDI context using the JMSAdmin utility. When connecting to IBM MQ we are getting following exception:
ERR fmbaJMS JMSException: JMSWMQ0018: Failed to connect to queue manager '<queue manager name>' with connection mode 'Client' and host name 'null'
Host name parameter sent is null while .bindings file correctly have
mq/RefAddr/30/Content=localhost(51410)
mq/RefAddr/30/Type=CRSHOSTS
Entries pointing to localhost and port 51410.
答案1
得分: 2
你的.bindings文件看起来不正确。您用什么JMSAdmin命令来创建它？
MQ0018: 无法连接到队列管理器'bt.qm.ccxp0'。
这是您的队列管理器名称还是QCF？注意：根据IBM最佳实践，队列管理器名称应为大写。
要定义一个QCF（队列连接工厂），您可以执行以下操作：
DEFINE QCF(myQCF) QMANAGER(MQA1) CHANNEL(TEST.CHL) HOSTNAME(127.0.0.1) PORT(1414) TRANSPORT(CLIENT) FAILIFQUIESCE(YES)
要定义一个JMS队列，您可以执行以下操作：
DEFINE Q(mqs.dev.test.q) QUEUE(TEST.Q1) QMANAGER(MQA1) TARGCLIENT(JMS) FAILIFQUIESCE(YES)
然后在您的代码中，您将执行以下操作从MQ JNDI加载对象：
Hashtable<String,String> env = new Hashtable<String,String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
env.put(Context.PROVIDER_URL, "file:/C:/JNDI-Directory");
Context ctx = new InitialContext(env);
QueueConnectionFactory cf = (QueueConnectionFactory) ctx.lookup("myQCF");
Queue q = (Queue) ctx.lookup("mqs.dev.test.q");
英文:
Your .bindings file does not look right. What was the JMSAdmin command you used to create it?
> MQ0018: Failed to connect to queue manager 'bt.qm.ccxp0'
Is that your queue manager name or QCF? Note: As per the IBM Best Practises, queue manager names should be in uppercase.
To define a QCF (Queue Connection Factory), you would do:
DEFINE QCF(myQCF) QMANAGER(MQA1) CHANNEL(TEST.CHL) HOSTNAME(127.0.0.1) PORT(1414) TRANSPORT(CLIENT) FAILIFQUIESCE(YES)
To define a JMS queue, you would do:
DEFINE Q(mqs.dev.test.q) QUEUE(TEST.Q1) QMANAGER(MQA1) TARGCLIENT(JMS) FAILIFQUIESCE(YES)
Then in your code, you would do the following to load the objects from the MQ JNDI:
Hashtable<String,String> env = new Hashtable<String,String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
env.put(Context.PROVIDER_URL, "file:/C:/JNDI-Directory");
Context ctx = new InitialContext(env);
QueueConnectionFactory cf = (QueueConnectionFactory) ctx.lookup("myQCF");
Queue q = (Queue) ctx.lookup("mqs.dev.test.q");
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