Java 使用ActiveMQ取消订阅持久订阅服务器
我正在尝试从主题中取消订阅持久订户 我的应用程序是一种社交网络：每个用户都是其他用户的话题。因此，每次用户做某事时，都会通知他的朋友。当然，订阅者可能会取消订阅某个主题，希望不再收到关于某个用户的通知 每次我试图取消订阅某个主题的订阅者时，都会出现一个错误，告诉我：“javax.jms.jmsceception:持久消费者正在使用中”” 这是我的两个类，发送者类和接收者类。有人能告诉我我做错了什么吗 发件人类别：Java 使用ActiveMQ取消订阅持久订阅服务器,java,jms,activemq,jms-topic,durable-subscription,Java,Jms,Activemq,Jms Topic,Durable Subscription,我正在尝试从主题中取消订阅持久订户 我的应用程序是一种社交网络：每个用户都是其他用户的话题。因此，每次用户做某事时，都会通知他的朋友。当然，订阅者可能会取消订阅某个主题，希望不再收到关于某个用户的通知 每次我试图取消订阅某个主题的订阅者时，都会出现一个错误，告诉我：“javax.jms.jmsceception:持久消费者正在使用中”” 这是我的两个类，发送者类和接收者类。有人能告诉我我做错了什么吗 发件人类别： package com.citizenweb.classes; import j
package com.citizenweb.classes;
import java.util.Date;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageFormatException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.ObjectMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQSession;
import com.citizenweb.interfaces.PostIF;
import com.citizenweb.interfaces.UserIF;
public class Sender {
private ActiveMQConnectionFactory factory = null;
private ActiveMQConnection connection = null;
private ActiveMQSession session = null;
private Destination destination = null;
private MessageProducer producer = null;
public Sender() {
}
public void connect(){
try{
factory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_BROKER_URL);
// TODO Mécanisme de sécurité d'ActiveMQ à rétablir en production
factory.setTrustAllPackages(true);
connection = (ActiveMQConnection) factory.createConnection();
connection.start();
session = (ActiveMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
} catch (JMSException e){
e.printStackTrace();
}
}
public void sendPost(UserIF user,PostIF post) {
if(session==null){connect();}
try {
destination = session.createTopic(user.toString());
producer = session.createProducer(destination);
ObjectMessage postMessage = session.createObjectMessage();
postMessage.setObject(post);
producer.send(postMessage);
System.out.println("\n SENDER Object message sent");
} catch (MessageFormatException e) {
e.printStackTrace();
} catch (JMSException e) {
e.printStackTrace();
}
}
public void sendInformation(UserIF user,String info){
if(session==null){connect();}
try {
destination = session.createTopic(user.toString());
producer = session.createProducer(destination);
TextMessage infoMessage = session.createTextMessage();
infoMessage.setText(info);
producer.send(infoMessage);
System.out.println("\n SENDER Information message sent");
} catch (JMSException e) {
e.printStackTrace();
}
}
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
UserIF u1, u2, u3;
String[] nom = new String[5];
String[] prenom = new String[5];
String[] login = new String[5];
String[] password = new String[5];
Date[] naiss = new Date[5];
String[] mail = new String[5];
for (int i = 0; i < 5; i++) {
nom[i] = "nom_" + i;
prenom[i] = "prenom_" + i;
login[i] = "login_" + i;
password[i] = "password_" + i;
naiss[i] = new Date();
mail[i] = "mail_" + i;
}
System.out.println("\n SENDER AFFECTATION DES NOMS");
u1 = new User(nom[0], prenom[0], login[0], password[0], naiss[0], mail[0]);
u2 = new User(nom[1], prenom[1], login[1], password[1], naiss[1], mail[1]);
u3 = new User(nom[2], prenom[2], login[2], password[2], naiss[2], mail[2]);
Sender sender = new Sender();
sender.sendInformation(u1, "U1 notification");
sender.sendInformation(u2, "U2 notification");
sender.sendInformation(u3, "U3 notification");
//PostIF post = new Post("Mon Post","Ceci est mon message",u1,u1,"Classe Sender",((User) u1).getIdUser(),0);
//sender.sendPost(user, post);
sender.session.close();
sender.connection.close();
}
}
package com.citizenweb.classes;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.broker.region.Destination;
import com.citizenweb.interfaces.PostIF;
import com.citizenweb.interfaces.UserIF;
import com.citizenweb.classes.Post;
public class Receiver implements MessageListener, Serializable {
private static final long serialVersionUID = 1L;
private ActiveMQConnectionFactory factory = null;
private ActiveMQConnection connection = null;
private ActiveMQSession session = null;
private Topic destination = null;
private MessageConsumer consumer = null;
UserIF userTopic = new User();
UserIF userSubscriber = new User();
List<Message> listeMsg = new ArrayList<Message>();
public Receiver(UserIF subscriber) {
this.userSubscriber = subscriber;
}
public void connect() {
try {
factory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_BROKER_URL);
// TODO Mécanisme de sécurité d'ActiveMQ à rétablir en production
factory.setTrustAllPackages(true);
connection = (ActiveMQConnection) factory.createConnection();
// ClientID :
// https://qnalist.com/questions/2068823/create-durable-topic-subscriber
connection.setClientID(userSubscriber.toString());
connection.start();
session = (ActiveMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
} catch (JMSException e) {
e.printStackTrace();
}
}
public void receiveMessage(UserIF topic) {
try {
if (session == null) {
connect();
}
destination = session.createTopic(topic.toString());
String nomAbonnement = topic.toString() + "->" + userSubscriber.toString();
//String nomAbonnement = userSubscriber.toString();
consumer = session.createDurableSubscriber(destination, nomAbonnement);
consumer.setMessageListener(this);
} catch (JMSException e) {
e.printStackTrace();
}
}
public void unsubscribe(UserIF topic) {
try {
if (session == null) {
connect();
}
System.out.println("\n RECEIVER Désinscription du topic " + topic.toString());
//consumer.close();
String nomAbonnement = topic.toString() + "->" + userSubscriber.toString();
//String nomAbonnement = userSubscriber.toString();
System.out.println("\n RECEIVER Abonnement à clore = " + nomAbonnement);
session.unsubscribe(nomAbonnement);
System.out.println("\n RECEIVER " + userSubscriber.toString() + " s'est désinscrit de " + nomAbonnement);
} catch (JMSException e) {
e.printStackTrace();
}
}
@Override
public void onMessage(Message message) {
System.out.println("\n RECEIVER OnMessage triggered for " + userSubscriber.toString());
listeMsg.add(message);
System.out.println("\n RECEIVER Nombre de messages reçus par " + userSubscriber + " = " + listeMsg.size());
String classe = message.getClass().getSimpleName();
System.out.println("\n RECEIVER Classe de message : " + classe);
try {
if (message instanceof TextMessage) {
TextMessage text = (TextMessage) message;
System.out.println("\n RECEIVER Information : " + text.getText());
}
if (message instanceof ObjectMessage) {
System.out.println("\n RECEIVER ObjectMessage");
ObjectMessage oMessage = (ObjectMessage) message;
if (oMessage.getObject() instanceof PostIF) {
PostIF post = (PostIF) oMessage.getObject();
String s = ((Post) post).getCorpsMessage();
System.out.println("\n RECEIVER Post : " + s);
}
}
} catch (JMSException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws JMSException {
/*
* EACH USER IS A TOPIC FOR OTHER USERS
* WHATEVER A USER DOES RESULTS IN A NOTIFICATION TO SUBSCRIBERS
*/
//CREATE USER
UserIF u1, u2, u3;
String[] nom = new String[5];
String[] prenom = new String[5];
String[] login = new String[5];
String[] password = new String[5];
Date[] naiss = new Date[5];
String[] mail = new String[5];
for (int i = 0; i < 5; i++) {
nom[i] = "nom_" + i;
prenom[i] = "prenom_" + i;
login[i] = "login_" + i;
password[i] = "password_" + i;
naiss[i] = new Date();
mail[i] = "mail_" + i;
}
u1 = new User(nom[0], prenom[0], login[0], password[0], naiss[0], mail[0]);
u2 = new User(nom[1], prenom[1], login[1], password[1], naiss[1], mail[1]);
u3 = new User(nom[2], prenom[2], login[2], password[2], naiss[2], mail[2]);
/*
* MAKE EACH USER A SUBSCRIBER
*/
Receiver receiver1 = new Receiver(u1);
Receiver receiver2 = new Receiver(u2);
Receiver receiver3 = new Receiver(u3);
/*
* PUT A MESSAGE LISTENER FOR EACH USER
*/
receiver1.receiveMessage(u2);
receiver1.receiveMessage(u3);
receiver2.receiveMessage(u1);
receiver2.receiveMessage(u3);
receiver3.receiveMessage(u1);
receiver3.receiveMessage(u2);
/*
* CALL THE SENDER CLASS TO SEND MESSAGES
*/
try {
Sender.main(args);
} catch (Exception e1) {
e1.printStackTrace();
}
/*
* A SLEEP TO HAVE ENOUGH TIME TO LOOK AT THE ACTIVEMQ CONSOLE
* CAN BE REMOVE
*/
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
/*
* UNSUBSCRIBE SUBSCRIBERS FROM TOPICS
*/
receiver1.unsubscribe(u2);
receiver1.unsubscribe(u3);
receiver2.unsubscribe(u1);
receiver2.unsubscribe(u3);
receiver3.unsubscribe(u1);
receiver3.unsubscribe(u2);
}
}
package com.citizenweb.classes；
导入java.util.Date；
导入javax.jms.Connection；
导入javax.jms.ConnectionFactory；
导入javax.jms.Destination；
导入javax.jms.jmsception；
导入javax.jms.MessageFormatException；
导入javax.jms.MessageProducer；
导入javax.jms.Session；
导入javax.jms.TextMessage；
导入javax.jms.Topic；
导入javax.jms.ObjectMessage；
导入org.apache.activemq.ActiveMQConnection；
导入org.apache.activemq.ActiveMQConnectionFactory；
导入org.apache.activemq.ActiveMQSession；
导入com.citizenweb.interfaces.PostIF；
导入com.citizenweb.interfaces.UserIF；
公共类发送器{
私有ActiveMQConnectionFactory工厂=null；
私有ActiveMQConnection连接=null；
私有ActiveMQSession会话=null；
专用目的地=null；
private MessageProducer=null；
公共发送者（）{
}
公共void connect（）{
试一试{
工厂=新的ActiveMQConnectionFactory（ActiveMQConnection.DEFAULT\u BROKER\u URL）；
//TODO Mécanisme de sécuritéd'ActiveMQárétabliré生产
factory.setTrustAllPackages（true）；
connection=（ActiveMQConnection）工厂。createConnection（）；
connection.start（）；
session=（ActiveMQSession）connection.createSession（false，session.AUTO_-ACKNOWLEDGE）；
}捕获（JME）{
e、 printStackTrace（）；
}
}
公共void sendPost（UserIF user，PostIF post）{
如果（session==null）{connect（）；}
试一试{
destination=session.createTopic（user.toString（））；
producer=session.createProducer（目的地）；
ObjectMessage postMessage=session.createObjectMessage（）；
setObject（post）；
producer.send（postMessage）；
System.out.println（“\n发送方对象消息已发送”）；
}捕获（消息格式异常）{
e、 printStackTrace（）；
}捕获（JME）{
e、 printStackTrace（）；
}
}
public void sendInformation（UserIF user，String info）{
如果（session==null）{connect（）；}
试一试{
destination=session.createTopic（user.toString（））；
producer=session.createProducer（目的地）；
TextMessage infoMessage=session.createTextMessage（）；
infoMessage.setText（info）；
producer.send（infoMessage）；
System.out.println（“\n发件人信息消息已发送”）；
}捕获（JME）{
e、 printStackTrace（）；
}
}
/**
*@param args
*@抛出异常
*/
公共静态void main（字符串[]args）引发异常{
UserIF u1、u2、u3；
字符串[]名称=新字符串[5]；
字符串[]prenom=新字符串[5]；
String[]login=新字符串[5]；
字符串[]密码=新字符串[5]；
日期[]naiss=新日期[5]；
字符串[]邮件=新字符串[5]；
对于（int i=0；i<5；i++）{
名称[i]=“名称”+i；
prenom[i]=“prenom_u2;”+i；
登录[i]=“登录”+i；
密码[i]=“密码”+i；
naiss[i]=新日期（）；
邮件[i]=“邮件”+i；
}
System.out.println（“\n发送方假装名称”）；
u1=新用户（nom[0]、prenom[0]、登录[0]、密码[0]、naiss[0]、邮件[0]）；
u2=新用户（名称[1]，prenom[1]，登录[1]，密码[1]，naiss[1]，邮件[1]）；
u3=新用户（nom[2]、prenom[2]、登录[2]、密码[2]、naiss[2]、邮件[2]）；
发送方=新发送方（）；
发送方信息（u1，“u1通知”）；
发件人信息（u2，“u2通知”）；
发送方信息（u3，“u3通知”）；
//PostIF post=new post（“Mon post”，“Ceci est Mon message”，u1，u1，“Classe Sender”，（（用户）u1.getIdUser（），0）；
//sender.sendPost（用户，post）；
sender.session.close（）；
sender.connection.close（）；
}
}
package com.citizenweb.classes;
import java.util.Date;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageFormatException;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.ObjectMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQSession;
import com.citizenweb.interfaces.PostIF;
import com.citizenweb.interfaces.UserIF;
public class Sender {
private ActiveMQConnectionFactory factory = null;
private ActiveMQConnection connection = null;
private ActiveMQSession session = null;
private Destination destination = null;
private MessageProducer producer = null;
public Sender() {
}
public void connect(){
try{
factory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_BROKER_URL);
// TODO Mécanisme de sécurité d'ActiveMQ à rétablir en production
factory.setTrustAllPackages(true);
connection = (ActiveMQConnection) factory.createConnection();
connection.start();
session = (ActiveMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
} catch (JMSException e){
e.printStackTrace();
}
}
public void sendPost(UserIF user,PostIF post) {
if(session==null){connect();}
try {
destination = session.createTopic(user.toString());
producer = session.createProducer(destination);
ObjectMessage postMessage = session.createObjectMessage();
postMessage.setObject(post);
producer.send(postMessage);
System.out.println("\n SENDER Object message sent");
} catch (MessageFormatException e) {
e.printStackTrace();
} catch (JMSException e) {
e.printStackTrace();
}
}
public void sendInformation(UserIF user,String info){
if(session==null){connect();}
try {
destination = session.createTopic(user.toString());
producer = session.createProducer(destination);
TextMessage infoMessage = session.createTextMessage();
infoMessage.setText(info);
producer.send(infoMessage);
System.out.println("\n SENDER Information message sent");
} catch (JMSException e) {
e.printStackTrace();
}
}
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
UserIF u1, u2, u3;
String[] nom = new String[5];
String[] prenom = new String[5];
String[] login = new String[5];
String[] password = new String[5];
Date[] naiss = new Date[5];
String[] mail = new String[5];
for (int i = 0; i < 5; i++) {
nom[i] = "nom_" + i;
prenom[i] = "prenom_" + i;
login[i] = "login_" + i;
password[i] = "password_" + i;
naiss[i] = new Date();
mail[i] = "mail_" + i;
}
System.out.println("\n SENDER AFFECTATION DES NOMS");
u1 = new User(nom[0], prenom[0], login[0], password[0], naiss[0], mail[0]);
u2 = new User(nom[1], prenom[1], login[1], password[1], naiss[1], mail[1]);
u3 = new User(nom[2], prenom[2], login[2], password[2], naiss[2], mail[2]);
Sender sender = new Sender();
sender.sendInformation(u1, "U1 notification");
sender.sendInformation(u2, "U2 notification");
sender.sendInformation(u3, "U3 notification");
//PostIF post = new Post("Mon Post","Ceci est mon message",u1,u1,"Classe Sender",((User) u1).getIdUser(),0);
//sender.sendPost(user, post);
sender.session.close();
sender.connection.close();
}
}
package com.citizenweb.classes;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.broker.region.Destination;
import com.citizenweb.interfaces.PostIF;
import com.citizenweb.interfaces.UserIF;
import com.citizenweb.classes.Post;
public class Receiver implements MessageListener, Serializable {
private static final long serialVersionUID = 1L;
private ActiveMQConnectionFactory factory = null;
private ActiveMQConnection connection = null;
private ActiveMQSession session = null;
private Topic destination = null;
private MessageConsumer consumer = null;
UserIF userTopic = new User();
UserIF userSubscriber = new User();
List<Message> listeMsg = new ArrayList<Message>();
public Receiver(UserIF subscriber) {
this.userSubscriber = subscriber;
}
public void connect() {
try {
factory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_BROKER_URL);
// TODO Mécanisme de sécurité d'ActiveMQ à rétablir en production
factory.setTrustAllPackages(true);
connection = (ActiveMQConnection) factory.createConnection();
// ClientID :
// https://qnalist.com/questions/2068823/create-durable-topic-subscriber
connection.setClientID(userSubscriber.toString());
connection.start();
session = (ActiveMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
} catch (JMSException e) {
e.printStackTrace();
}
}
public void receiveMessage(UserIF topic) {
try {
if (session == null) {
connect();
}
destination = session.createTopic(topic.toString());
String nomAbonnement = topic.toString() + "->" + userSubscriber.toString();
//String nomAbonnement = userSubscriber.toString();
consumer = session.createDurableSubscriber(destination, nomAbonnement);
consumer.setMessageListener(this);
} catch (JMSException e) {
e.printStackTrace();
}
}
public void unsubscribe(UserIF topic) {
try {
if (session == null) {
connect();
}
System.out.println("\n RECEIVER Désinscription du topic " + topic.toString());
//consumer.close();
String nomAbonnement = topic.toString() + "->" + userSubscriber.toString();
//String nomAbonnement = userSubscriber.toString();
System.out.println("\n RECEIVER Abonnement à clore = " + nomAbonnement);
session.unsubscribe(nomAbonnement);
System.out.println("\n RECEIVER " + userSubscriber.toString() + " s'est désinscrit de " + nomAbonnement);
} catch (JMSException e) {
e.printStackTrace();
}
}
@Override
public void onMessage(Message message) {
System.out.println("\n RECEIVER OnMessage triggered for " + userSubscriber.toString());
listeMsg.add(message);
System.out.println("\n RECEIVER Nombre de messages reçus par " + userSubscriber + " = " + listeMsg.size());
String classe = message.getClass().getSimpleName();
System.out.println("\n RECEIVER Classe de message : " + classe);
try {
if (message instanceof TextMessage) {
TextMessage text = (TextMessage) message;
System.out.println("\n RECEIVER Information : " + text.getText());
}
if (message instanceof ObjectMessage) {
System.out.println("\n RECEIVER ObjectMessage");
ObjectMessage oMessage = (ObjectMessage) message;
if (oMessage.getObject() instanceof PostIF) {
PostIF post = (PostIF) oMessage.getObject();
String s = ((Post) post).getCorpsMessage();
System.out.println("\n RECEIVER Post : " + s);
}
}
} catch (JMSException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws JMSException {
/*
* EACH USER IS A TOPIC FOR OTHER USERS
* WHATEVER A USER DOES RESULTS IN A NOTIFICATION TO SUBSCRIBERS
*/
//CREATE USER
UserIF u1, u2, u3;
String[] nom = new String[5];
String[] prenom = new String[5];
String[] login = new String[5];
String[] password = new String[5];
Date[] naiss = new Date[5];
String[] mail = new String[5];
for (int i = 0; i < 5; i++) {
nom[i] = "nom_" + i;
prenom[i] = "prenom_" + i;
login[i] = "login_" + i;
password[i] = "password_" + i;
naiss[i] = new Date();
mail[i] = "mail_" + i;
}
u1 = new User(nom[0], prenom[0], login[0], password[0], naiss[0], mail[0]);
u2 = new User(nom[1], prenom[1], login[1], password[1], naiss[1], mail[1]);
u3 = new User(nom[2], prenom[2], login[2], password[2], naiss[2], mail[2]);
/*
* MAKE EACH USER A SUBSCRIBER
*/
Receiver receiver1 = new Receiver(u1);
Receiver receiver2 = new Receiver(u2);
Receiver receiver3 = new Receiver(u3);
/*
* PUT A MESSAGE LISTENER FOR EACH USER
*/
receiver1.receiveMessage(u2);
receiver1.receiveMessage(u3);
receiver2.receiveMessage(u1);
receiver2.receiveMessage(u3);
receiver3.receiveMessage(u1);
receiver3.receiveMessage(u2);
/*
* CALL THE SENDER CLASS TO SEND MESSAGES
*/
try {
Sender.main(args);
} catch (Exception e1) {
e1.printStackTrace();
}
/*
* A SLEEP TO HAVE ENOUGH TIME TO LOOK AT THE ACTIVEMQ CONSOLE
* CAN BE REMOVE
*/
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}
/*
* UNSUBSCRIBE SUBSCRIBERS FROM TOPICS
*/
receiver1.unsubscribe(u2);
receiver1.unsubscribe(u3);
receiver2.unsubscribe(u1);
receiver2.unsubscribe(u3);
receiver3.unsubscribe(u1);
receiver3.unsubscribe(u2);
}
}
package com.citizenweb.classes；
导入java.io.Serializable；
导入java.util.ArrayList；
导入java.util.Date；
导入java.util.List；
导入javax.jms.jmsception；
导入javax.jms.Message；
导入javax.jms.MessageConsumer；
导入javax.jms.MessageListener；
导入javax.jms.ObjectMessage；
导入javax.jms.Session；
导入javax.jms.TextMessage；
导入javax.jms.Topic；
导入org.apache.activemq.ActiveMQConnection；
导入org.apache.activemq.ActiveMQConnectionFactory；
导入org.apache.activemq.ActiveMQSession；
导入org.apache.activemq.broker.region.Destination；
导入com.citizenweb.interfaces.PostIF；
导入com.citizenweb.interfaces.UserIF；
导入com.citizenweb.classes.Post；
公共类接收器实现MessageListener，可序列化{
私有静态最终长serialVersionUID=1L；
私有ActiveMQConnectionFactory工厂=null；
私有ActiveMQConnection连接=null；
私有ActiveMQSession会话=null；
私有主题目的地=null；
private MessageConsumer=null；
UserIF userTopic=new User（）；
UserIF userSubscriber=新用户（）；
List ListMsg=new ArrayList（）；
公用接收器（用户IF订户）{
this.userSubscriber=subscriber；
}
公共void connect（）{
试一试{
事实的