ibm websphere MQ大虾们请进

[xiaojun0124]

　　请求/响应模式．
　　我写了两个方法，一个是请求方，发消息到队列，之后等待响应，　　
　　另一个是读取请求方发送的消息，之后给于响应．　　当我读取请求方消息的时候，我想得到messageId并且转换成字符串，想看看是否与请求方放入队列的messageId是一致的？　　
　　网上还有说．消息Id可以自定义的，这个怎么自字义．．求高手帮忙．
　　用java写的代码

[jaminwm]

package test;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.command.ConnectionId;
import org.apache.activemq.command.ConnectionInfo;
import org.apache.activemq.management.JMSStatsImpl;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.util.IdGenerator;

public class CustomActiveMQConnection extends ActiveMQConnection{

/**自己的connectionInfo*/
private ConnectionInfo info;

/**messageid的正则*/
private final Pattern pattern = Pattern.compile("ID:([\\w*-?\\w*]*)-\\d+-\\d+-\\d+:\\d+");

public CustomActiveMQConnection(final Transport transport,
IdGenerator clientIdGenerator, JMSStatsImpl factoryStats,String messageid)
throws Exception {
super(transport, clientIdGenerator, factoryStats);
//取得生动生成的connectionid
String uniqueId = super.getConnectionInfo().getConnectionId().getValue();
if(messageid!=null){//替换机器名
Matcher matcher = pattern.matcher(uniqueId);
if(matcher.find()){
String localName = matcher.group(1);
uniqueId = uniqueId.replace(localName, messageid);
}
}
//构造自己的connectionInfo
this.info = new ConnectionInfo(new ConnectionId(uniqueId));
this.info.setManageable(true);
this.info.setFaultTolerant(transport.isFaultTolerant());
}

public ConnectionInfo getConnectionInfo() {
return this.info;
}

public void setUserName(String userName) {
this.info.setUserName(userName);
}

public void setPassword(String password) {
this.info.setPassword(password);
}

}

[jaminwm]

package test;

import javax.jms.JMSException;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.management.JMSStatsImpl;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.util.JMSExceptionSupport;

public class CustomActiveMQConnectionFactory extends ActiveMQConnectionFactory{

JMSStatsImpl factoryStats = new JMSStatsImpl();

public CustomActiveMQConnectionFactory(){
super(DEFAULT_BROKER_URL);
}

public CustomActiveMQConnectionFactory(String userName,String password,String brokerURL){
super(userName,password,brokerURL);
}

/**得到一个算定义messageid的Connection*/
public CustomActiveMQConnection createConnection(String messageid) throws JMSException {
CustomActiveMQConnection connection = null;
try{
Transport transport = super.createTransport();
connection = new CustomActiveMQConnection(transport,super.getClientIdGenerator(),factoryStats,messageid);
connection.setUserName(userName);
connection.setPassword(password);
super.configureConnection(connection);
transport.start();
if (clientID != null) {
connection.setDefaultClientID(clientID);
}
return connection;
}catch(Exception e){
try {
if(connection!=null)
connection.close();
} catch (Throwable ignore) {
}
throw JMSExceptionSupport.create("Could not connect to broker URL: " + brokerURL + ". Reason: " + e, e);
}
}
}

[longyangyangyang]

1，自己定义，你只要能保证消息ID的唯一性，当然也可以
String messageId=UUID.randomUUID().toString()
message.setStringProperty("MessageID", messageId);
2,用MQ自己生成的id，放进去后，你存着这个ID，当你取出来的时候进行比较即是
TextMessage msg= session.createTextMessage();
sender.send(msg);
String messageId = message.getStringProperty("MessageID");

[JasonYao]

给一个忠告：自定义ID一定要保证是48位16进制，不然不同平台之间传递消息会导致消息ID乱码

[JasonYao]

引用 4 楼 javalover_yao 的回复:

给一个忠告：自定义ID一定要保证是48位16进制，不然不同平台之间传递消息会导致消息ID乱码

原因参考：http://blog.csdn.net/javalover_yao/article/details/6570638