要实现ActiveMQ中的持久化主题和并发性，可以使用以下代码示例：

1. 创建一个发布者（Producer）类：

import javax.jms.*;
import org.apache.activemq.ActiveMQConnectionFactory;

public class TopicProducer {
    private static final String BROKER_URL = "tcp://localhost:61616";
    private static final String TOPIC_NAME = "persistent.topic";

    public static void main(String[] args) {
        try {
            // 创建连接工厂
            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(BROKER_URL);

            // 创建连接
            Connection connection = connectionFactory.createConnection();

            // 启动连接
            connection.start();

            // 创建会话
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

            // 创建主题
            Topic topic = session.createTopic(TOPIC_NAME);

            // 创建消息生产者
            MessageProducer producer = session.createProducer(topic);

            // 创建消息
            TextMessage message = session.createTextMessage("Hello, ActiveMQ!");

            // 发布消息
            producer.send(message);

            System.out.println("消息已发送");

            // 关闭连接
            connection.close();
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }
}

2. 创建一个持久化订阅者（Durable Subscriber）类：

import javax.jms.*;
import org.apache.activemq.ActiveMQConnectionFactory;

public class DurableSubscriber {
    private static final String BROKER_URL = "tcp://localhost:61616";
    private static final String TOPIC_NAME = "persistent.topic";
    private static final String SUBSCRIBER_NAME = "durable.subscriber";

    public static void main(String[] args) {
        try {
            // 创建连接工厂
            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(BROKER_URL);

            // 创建连接
            Connection connection = connectionFactory.createConnection();

            // 启动连接
            connection.start();

            // 创建会话
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

            // 创建主题
            Topic topic = session.createTopic(TOPIC_NAME);

            // 创建持久化订阅者
            MessageConsumer consumer = session.createDurableSubscriber(topic, SUBSCRIBER_NAME);

            // 接收消息
            Message message = consumer.receive();

            if (message instanceof TextMessage) {
                TextMessage textMessage = (TextMessage) message;
                System.out.println("接收到消息: " + textMessage.getText());
            }

            // 关闭连接
            connection.close();
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }
}

3. 创建一个非持久化订阅者（Non-Durable Subscriber）类：

import javax.jms.*;
import org.apache.activemq.ActiveMQConnectionFactory;

public class NonDurableSubscriber {
    private static final String BROKER_URL = "tcp://localhost:61616";
    private static final String TOPIC_NAME = "persistent.topic";

    public static void main(String[] args) {
        try {
            // 创建连接工厂
            ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(BROKER_URL);

            // 创建连接
            Connection connection = connectionFactory.createConnection();

            // 启动连接
            connection.start();

            // 创建会话
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

            // 创建主题
            Topic topic = session.createTopic(TOPIC_NAME);

            // 创建非持久化订阅者
            MessageConsumer consumer = session.createConsumer(topic);

            // 设置消息监听器
            consumer.setMessageListener(new MessageListener() {
                @Override
                public void onMessage(Message message) {
                    if (message instanceof TextMessage) {
                        TextMessage textMessage = (TextMessage) message;
                        try {
                            System.out.println("接收到消息: " + textMessage.getText());
                        } catch (JMSException e) {
                            e.printStackTrace();
                        }
                    }
                }
            });

            Thread.sleep(5000); // 等待接收消息

            // 关闭连接
            connection.close();
        } catch (JMSException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}

这些示例代码演示了如何在ActiveMQ中实现持久化主题和并发性。发布者将消息发送到主题，持久化订阅者和非持久化订阅者将接收和处理这些消息。持久化订阅者在断开