rabbitmq+topic+java

最新推荐文章于 2025-03-11 18:54:09 发布

dingshai2890

最新推荐文章于 2025-03-11 18:54:09 发布

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文章标签：大数据 java

原文链接：http://www.cnblogs.com/sunshine2016/p/5985071.html

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本文详细介绍如何使用Java和Maven构建项目，通过RabbitMQ客户端库实现消息发送至指定Exchange。具体步骤包括配置依赖、创建连接、声明Exchange并发送消息至特定Routing Key。文章还提供了完整的代码示例。

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可参照github代码：https://github.com/rabbitmq/rabbitmq-tutorials/blob/master/java/EmitLogTopic.java

1. 新建maven项目

2. 在pom.xml中添加rabbitmq依赖

<dependency>
    <groupId>com.rabbitmq</groupId>
    <artifactId>amqp-client</artifactId>
    <version>2.8.2</version>
</dependency>

3. 在pom.xml中添加junit

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.11</version>
    <scope>test</scope>
</dependency>

4. 新建send_msg类，发送消息：

package stream.rabbitmq.client;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

/**
 * Created by sarah on 16/10/21.
 */

public class send_msg {
    private static final String EXCHANGE_NAME = "osc_topic";

    public static void main(String[] argv){
        Connection connection = null;
        Channel channel = null;

        try {
            ConnectionFactory factory = new ConnectionFactory();
            factory.setHost("vpcb-talaris-mq-1.vm.elenet.me");
            factory.setVirtualHost("talaris");
            factory.setPort(5672);
            factory.setUsername("talaris");
            factory.setPassword("talaris");

            connection = factory.newConnection();
            channel = connection.createChannel();

//            channel.exchangeDeclare(EXCHANGE_NAME, "topic");       －－ 若exchange已经定义，就不能再重复定义了

            String routingkey = "action.order.online_pay_make";  //getRouting(argv);
            String message = "Hello World!";      //getMessage(argv);

            channel.basicPublish(EXCHANGE_NAME, routingkey, null, message.getBytes("UTF-8"));
            System.out.println(" [x] Sent '" + routingkey + "':'" + message + "'");

        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (Exception ignore) {}
            }
        }
    }

}