Spring 集成RabbitMq

Spring 集成RabbitMq 

一、基本配置

1、pom添加以下jar

　　　　　
            com.fasterxml.jackson.core
            jackson-databind
            2.7.5
        
        
        
            org.springframework.amqp
            spring-rabbit
            2.1.7.RELEASE
        

2、spring配置文件springContext.xml添加以下配置

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:task="http://www.springframework.org/schema/task" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans    
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd    
           http://www.springframework.org/schema/context    
           http://www.springframework.org/schema/context/spring-context-3.0.xsd  
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd  
           http://www.springframework.org/schema/aop    
           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd    
           http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
           ">
      

    
    
    package="com.pinghengxing..*">
    
    
   <import resource="classpath*:com/config/rabbitmq_producer.xml" />
   
       
   <import resource="classpath*:com/config/rabbitmq_consumer.xml" />
    

 

3、rabbitmq_producer.xml生产者配置如下（其中配置了exchange的三种类型：fanout，direct，topic）

 

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:rabbit="http://www.springframework.org/schema/rabbit"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
      http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.xsd
            http://www.springframework.org/schema/rabbit
            http://www.springframework.org/schema/rabbit/spring-rabbit.xsd">
    
    
    
    
    
    
    
    host="140.143.xx.xx" username="ww" password="ww" port="5672"
    virtual-host="ww" channel-cache-size="25" cache-mode="CHANNEL"
    publisher-confirms="true" publisher-returns="true" connection-timeout="200" />
    
    
    
    
    class="org.springframework.retry.support.RetryTemplate">
        
            class="org.springframework.retry.backoff.ExponentialBackOffPolicy">
                
                
            
        
        
            class="org.springframework.retry.policy.SimpleRetryPolicy">
                
            
        
    
    

    
     
     message-converter="jsonMessageConverter" confirm-callback="confirmCallback" return-callback="returnCallback" mandatory="true" 
    />
    



    
    
    
    
    
    
    
    
    
    
    
    
    
        
            
            
        
    
    
    
    
    
        
            
        
    
    
    
        
            
            
            
        
    
    
    
    class="org.springframework.amqp.support.converter.Jackson2JsonMessageConverter">
    
    
    
    

    

        

    
    

 

3、rabbitmq_consumer.xml消费者配置如下：（其中定义了三种exchange类型对应队列的消费者 ，）

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:rabbit="http://www.springframework.org/schema/rabbit"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
      http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.3.xsd
            http://www.springframework.org/schema/rabbit
            http://www.springframework.org/schema/rabbit/spring-rabbit.xsd">
    
    
    
    
    
    
    
    host="140.143.xx.xx" username="ww" password="ww" port="5672"
    virtual-host="ww" channel-cache-size="25" cache-mode="CHANNEL"
     connection-timeout="200" />

    
    
    
    
    prefetch="1" concurrency="1"  >
        
        
        
        
        
        
        
        
        
        
    
    
    

二、编写测试代码（在此只进行Direct类型 交换机测试代码的表写，其他类型仿照此示例即可）

1、定义消息生产者（DirectProducer）

package com.pinghengxing.direct;

import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

/** 
 * @author ww
 */

public class DirectProducer {
    
    
    private static ApplicationContext ac;

    public static void sendMessage(String exchange,String routingKey,Object message){
        ac = new ClassPathXmlApplicationContext("classpath:com/config/springContext.xml");
        RabbitTemplate rt = ac.getBean(RabbitTemplate.class);
        
        for(int i=0;i<10;i++){
            rt.convertAndSend(exchange, routingKey, message+""+i);
        }
    }
     
    public static void main(String[] args) {
        DirectProducer.sendMessage("myDirectExchange","direct","路由模式");
    }

    
    
}  

2、定义消息消费者（DirectReceiver1，DirectReceiver1  ）-多个消费者

消费者1

package com.pinghengxing.direct;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;

import com.rabbitmq.client.Channel;
@Component("directReceiver")
public class DirectReceiver implements ChannelAwareMessageListener{
    @Override
    public void onMessage(Message message, Channel channel) throws Exception {
        System.out.println("************************direct111********************************");
        System.out.println("路由模式direct111 接收信息："+new String(message.getBody()));
        System.out.println("********************************************************");
        //设置手工应答
//        if(true){
//            throw new Exception();
//        }
        channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
                    
    }

    
}

消费者2

package com.pinghengxing.direct;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;

import com.rabbitmq.client.Channel;
@Component("directReceiver2")
public class DirectReceiver2 implements ChannelAwareMessageListener{
    @Override
    public void onMessage(Message message, Channel channel) throws Exception {
        System.out.println("************************direct222********************************");
        System.out.println("路由模式direct222 接收信息："+new String(message.getBody()));
        System.out.println("********************************************************");
        //设置手工应答
//        if(true){
//            throw new Exception();
//        }
        channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
                    
    }

    
}

 

三、测试

1、进行测试，结果如下：（两个消费者都可以从队列中取到数据，且数据不重复）

 

四、confirm-callback监听（用于监听exchange是否接收成功）

1、在配置工厂连接的时候，设置publisher-confirms="true"

    host="140.143.xx.xx" username="ww" password="ww" port="5672"
    virtual-host="ww" channel-cache-size="25" cache-mode="CHANNEL"
    publisher-confirms="true" publisher-returns="true" connection-timeout="200" />

2、在定义rabbitmq模板时，指定confirm-callback的实现类

 
     message-converter="jsonMessageConverter" confirm-callback="confirmCallback" return-callback="returnCallback" mandatory="true" 
    />

3、创建实现类ConfirmCallback，实现RabbitTemplate.ConfirmCallback接口

 

package com.pinghengxing.callback;

import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.stereotype.Component;

/**
 * confirm-callback监听（用于监听exchange是否接收成功）
 * @author ww
 *
 */
@Component("confirmCallback")
public class ConfirmCallBack implements  RabbitTemplate.ConfirmCallback{

    /**
    * CorrelationData 是在发送消息时传入回调方法的参数，可以用于区分消息对象。 CorrelationData对象中只有一个属性 String id。
    * 通过这个参数，我们可以区分当前是发送哪一条消息时的回调，并通过ack参数来进行失败重发功能
    * @param correlationData 回调的相关数据.
    * @param ack true for ack, false for nack
    * @param cause 专门给NACK准备的一个可选的原因，其他情况为null。
    */
    public void confirm(CorrelationData correlationData, boolean ack,String cause) {
        System.out.println("********************************************************");
        System.out.println("exChange确认" + ack + "   " + cause);
        System.out.println("********************************************************");
    }
    
}

4、测试

五、returnCallback监听（basicpublish推送消息到queue失败时回调）

1、在配置工厂连接的时候，设置publisher-returns="true"

host="140.143.xx.xx" username="ww" password="ww" port="5672"
virtual-host="ww" channel-cache-size="25" cache-mode="CHANNEL"
publisher-confirms="true" publisher-returns="true" connection-timeout="200" />

2、在定义rabbitmq模板时，指定return-callback的实现类，并且设置mandatory="true"

     
     message-converter="jsonMessageConverter" confirm-callback="confirmCallback" return-callback="returnCallback" mandatory="true" 
    />

3、创建实现类ReturnCallBack，实现RabbitTemplate.ReturnCallback接口

package com.pinghengxing.callback;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.stereotype.Component;

/**
 * 推送消息到queue失败时回调
 * @author ww
 *
 */
@Component("returnCallback")
public class ReturnCallBack implements RabbitTemplate.ReturnCallback {
    
    
        @Override
        public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
            System.out.println("********************************************************");
            System.out.println("失败确认:"+message+" | "+replyCode+" | "+replyText+" | "+exchange+" | "+routingKey);
            System.out.println("********************************************************");
        }


}

 4、测试（更改routing_key的值为direct123，由于找不到对应的队列，报以下错误）

六、json转换（可以将map等自动转换成json格式）

1、pom.xml添加以下maven依赖

　　　　  
            com.fasterxml.jackson.core
            jackson-databind
            2.7.5
        

 2、定义消息转换器，转成json格式

    class="org.springframework.amqp.support.converter.Jackson2JsonMessageConverter">

 

3、在定义rabbitmq模板时，指定转换器message-converter="jsonMessageConverter"

     
     message-converter="jsonMessageConverter" confirm-callback="confirmCallback" return-callback="returnCallback" mandatory="true" 
    />

 

 4、测试，创建map，进行生产，消费者接收到的信息如下：为json格式

 

友情链接：

完整的项目配置下载地址如下：可下载参考

https://files.cnblogs.com/files/pinghengxing/spring_rabbitmq_test.zip