pulsar官方demo

最新推荐文章于 2025-06-26 14:05:52 发布

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最新推荐文章于 2025-06-26 14:05:52 发布

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文章标签： java

原文链接：https://segmentfault.com/a/1190000006899623

本文介绍如何使用Pulsar消息队列的1.14版本搭建standalone模式，并通过示例代码演示如何创建生产者发布消息及消费者订阅消息的过程。

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standalone模式

cd pulsar-1.14
bin/pulsar standalone

maven

        <dependency>
            <groupId>com.yahoo.pulsar</groupId>
            <artifactId>pulsar-client</artifactId>
            <version>1.14</version>
        </dependency>

producer

@Test
    public void producer() throws PulsarClientException {
        PulsarClient client = PulsarClient.create("http://localhost:8080");

        Producer producer = client.createProducer(
                "persistent://sample/standalone/ns1/my-topic");

// Publish 10 messages to the topic
        for (int i = 0; i < 10; i++) {
            producer.send("my-message".getBytes());
        }

        client.close();
    }

consumer

@Test
    public void consumer() throws PulsarClientException {
        PulsarClient client = PulsarClient.create("http://localhost:8080");

        Consumer consumer = client.subscribe(
                "persistent://sample/standalone/ns1/my-topic",
                "my-subscribtion-name");

        for(int i=0;i<100;i++) {
            // Wait for a message
            Message msg = consumer.receive();

            System.out.println("Received message: " + new String(msg.getData()));

            // Acknowledge the message so that it can be deleted by broker
            consumer.acknowledge(msg);
        }

        client.close();
    }