标签:base exchange 利用 trace kafka int cli sch app
常见的消息中间件产品:
(1)ActiveMQ
ActiveMQ 是Apache出品,最流行的,能力强劲的开源消息总线。ActiveMQ 是一个完全支持JMS1.1和J2EE 1.4规范的 JMS Provider实现。
(2)RabbitMQ
AMQP协议的领导实现,支持多种场景。淘宝的MySQL集群内部有使用它进行通讯,OpenStack开源云平台的通信组件,最先在金融行业得到运用。我们在本次课程中介绍 RabbitMQ的使用。
(3)ZeroMQ
史上最快的消息队列系统
(4)Kafka
Apache下的一个子项目 。特点:高吞吐,在一台普通的服务器上既可以达到10W/s的吞吐速率;完全的分布式系统。适合处理海量数据。
(5)RocketMQ 阿里巴巴
消息中间件利用高效可靠的消息传递机制进行平台无关的数据交流,并基于数据通信来进行分布式系统的集成。通过提供消息传递和消息排队模型,它可以在分布式环境下扩展进程间的通信。对于消息中间件,常见的角色大致也就有Producer(生产者)、Consumer(消费者)。
消息队列中间件是分布式系统中重要的组件,主要解决应用解耦,异步消息,流量削锋等问题,实现高性能,高可用,可伸缩和最终一致性架构。
? Spring-amqp是对AMQP协议的抽象实现,而spring-rabbit 是对协议的具体实现,也是目前的唯一实现。底层使用的就是RabbitMQ。
已经配置好了ssm的开发环境
<dependencies>
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>5.5.3</version>
</dependency>
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
<version>2.1.3.RELEASE</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.5</version>
</dependency>
</dependencies>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rabbit="http://www.springframework.org/schema/rabbit"
xsi:schemaLocation="http://www.springframework.org/schema/rabbit
http://www.springframework.org/schema/rabbit/spring-rabbit-1.4.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="cn.test.rabbitmq.spring"/>
<!-- 配置连接工厂 -->
<rabbit:connection-factory id="connectionFactory" virtual-host="/saas"
host="127.0.0.1" port="5672" username="saas" password="saas" />
<!-- 定义mq管理 -->
<rabbit:admin connection-factory="connectionFactory" />
<!-- 声明队列 -->
<rabbit:queue name="spring.test.queue" auto-declare="true" durable="true" />
<!-- 定义交换机绑定队列(路由模式) -->
<rabbit:direct-exchange name="spring.test.exchange">
<rabbit:bindings>
<rabbit:binding queue="spring.test.queue" key="user.insert" />
</rabbit:bindings>
</rabbit:direct-exchange>
<!-- 定义交换机绑定队列(路由模式)使用匹配符
<rabbit:topic-exchange id="springTestExchange" name="spring.test.exchange">
<rabbit:bindings>
<rabbit:binding queue="spring.test.queue" pattern="#.#" />
</rabbit:bindings>
</rabbit:topic-exchange>
-->
<!-- 消息对象json转换类 -->
<bean id="jsonMessageConverter"
class="org.springframework.amqp.support.converter.Jackson2JsonMessageConverter" />
<!-- 定义模版 -->
<rabbit:template id="rabbitTemplate" connection-factory="connectionFactory"
exchange="spring.test.exchange"
message-converter="jsonMessageConverter"/>
</beans>
这里是往RabbitMQ队列中放入任务,让消费者去取
package cn.test.rabbitmq.spring;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class MqSender {
@Autowired
private AmqpTemplate amqpTemplate;
public void sendMessage(){
//根据key发送到对应的队列
amqpTemplate.convertAndSend("user.insert","spring整合RabbitMQ消息");
System.out.println("发送成功........");
}
}
package cn.test.rabbitmq.spring;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.HashMap;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext-mq-send.xml")
public class MqSendDemo {
@Autowired
private MqSender mqSender;
@Test
public void test(){
//根据key发送到对应的队列
mqSender.sendMessage();
}
}
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rabbit="http://www.springframework.org/schema/rabbit"
xsi:schemaLocation="http://www.springframework.org/schema/rabbit
http://www.springframework.org/schema/rabbit/spring-rabbit.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 配置连接工厂 -->
<rabbit:connection-factory id="connectionFactory" virtual-host="/saas"
host="127.0.0.1" port="5672" username="saas" password="saas" />
<!-- 定义mq管理 -->
<rabbit:admin connection-factory="connectionFactory" />
<!-- 声明队列 -->
<rabbit:queue name="spring.test.queue" auto-declare="true" durable="true" />
<!-- 定义消费者 -->
<bean id="testMqListener" class="cn.test.rabbitmq.spring.MqListener" />
<!-- 定义消费者监听队列 -->
<rabbit:listener-container
connection-factory="connectionFactory">
<rabbit:listener ref="testMqListener" queues="spring.test.queue" />
</rabbit:listener-container>
</beans>
package cn.test.rabbitmq.spring;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessageListener;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
public class MqListener implements MessageListener {
public void onMessage(Message message) {
try {
System.out.println(message.getBody());
String ms = new String(message.getBody(), "UTF-8");
System.out.println(ms);
} catch (Exception e) {
e.printStackTrace();
}
}
}
package cn.itcast.rabbitmq.spring;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext-mq-receive.xml")
public class MqReceiveDemo {
@Test
public void test(){
//等待队列中放入任务,如果有任务,立即消费任务
while (true){
}
}
}
标签:base exchange 利用 trace kafka int cli sch app
原文地址:https://www.cnblogs.com/changchangchang/p/12024401.html