RabbitMQ学习之spring整合发送异步消息

实现使用Exchange类型为DirectExchange. routingkey的名称默认为Queue的名称。异步发送消息。

1.配置文件

#============== rabbitmq config ====================
rabbit.hosts=192.168.36.102
rabbit.username=admin
rabbit.password=admin
rabbit.virtualHost=/
rabbit.queue=spring-queue-async
rabbit.routingKey=spring-queue-async#<span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25.2000007629395px;">routingkey的名称默认为Queue的名称</span>

2.生产者配置applicationContext-rabbitmq-async-send.xml：

<?xml version="1.0" encoding="UTF-8"?>
<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"
       xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">

	<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
		<property name="ignoreResourceNotFound" value="true" />
		<property name="locations">
			<list>
				<!-- 标准配置 -->
				<value>classpath*:/application.properties</value>
			</list>
		</property>
	</bean>
	
    <!-- 创建connectionFactory -->
    <bean id="rabbitConnectionFactory"
      class="org.springframework.amqp.rabbit.connection.CachingConnectionFactory">
	    <constructor-arg value="${rabbit.hosts}"/>
	    <property name="username" value="${rabbit.username}"/>
	    <property name="password" value="${rabbit.password}"/>
	    <property name="virtualHost" value="${rabbit.virtualHost}"/>
	    <property name="channelCacheSize" value="5"/>
	</bean>
	
	<!-- 创建rabbitAdmin 代理类 -->
	<bean id="rabbitAdmin"
		class="org.springframework.amqp.rabbit.core.RabbitAdmin">
		<constructor-arg ref="rabbitConnectionFactory" />
	</bean>
	
	<!-- 创建rabbitTemplate 消息模板类
	 -->
	<bean id="rabbitTemplate"
		class="org.springframework.amqp.rabbit.core.RabbitTemplate">
		<constructor-arg ref="rabbitConnectionFactory"></constructor-arg>
		<property name="routingKey" value="${rabbit.routingKey}"></property>
	</bean>
</beans>

3.生产者发送消息代码Send.java

package cn.slimsmart.rabbitmq.demo.spring.async;

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

public class Send {

	public static void main(String[] args) throws InterruptedException {
		ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext-rabbitmq-async-send.xml");  
		AmqpTemplate amqpTemplate = context.getBean(RabbitTemplate.class);  
		for(int i=0;i<1000;i++){
			amqpTemplate.convertAndSend("test spring async=>"+i); 
			Thread.sleep(3000);
		}
	}
}

4.处理消息类ReceiveMsgHandler.java

package cn.slimsmart.rabbitmq.demo.spring.async;

public class ReceiveMsgHandler {

	public void handleMessage(String text) {
		System.out.println("Received: " + text);
	}
}

5.配置applicationContext-rabbitmq-async-receive.xml：

<?xml version="1.0" encoding="UTF-8"?>
<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"
       xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
   
   	<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
		<property name="ignoreResourceNotFound" value="true" />
		<property name="locations">
			<list>
				<!-- 标准配置 -->
				<value>classpath*:/application.properties</value>
			</list>
		</property>
	</bean>
	
    <!-- 创建connectionFactory -->
    <bean id="rabbitConnectionFactory"
      class="org.springframework.amqp.rabbit.connection.CachingConnectionFactory">
	    <constructor-arg value="${rabbit.hosts}"/>
	    <property name="username" value="${rabbit.username}"/>
	    <property name="password" value="${rabbit.password}"/>
	    <property name="virtualHost" value="${rabbit.virtualHost}"/>
	    <property name="channelCacheSize" value="5"/>
	</bean>
	
	<!-- 声明消息转换器为SimpleMessageConverter -->  
    <bean id="messageConverter"  
        class="org.springframework.amqp.support.converter.SimpleMessageConverter">  
    </bean>  
    <!-- 监听生产者发送的消息开始 -->  
    <!-- 用于接收消息的处理类 -->  
    <bean id="receiveHandler"  
        class="cn.slimsmart.rabbitmq.demo.spring.async.ReceiveMsgHandler">  
    </bean>  
    <!-- 用于消息的监听的代理类MessageListenerAdapter -->  
    <bean id="receiveListenerAdapter"  
        class="org.springframework.amqp.rabbit.listener.adapter.MessageListenerAdapter">  
        <constructor-arg ref="receiveHandler" />  
        <property name="defaultListenerMethod" value="handleMessage"></property>  
        <property name="messageConverter" ref="messageConverter"></property>  
    </bean>  
    <!-- 用于消息的监听的容器类SimpleMessageListenerContainer，对于queueName的值一定要与定义的Queue的值相同 -->  
    <bean id="listenerContainer"  
        class="org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer">  
        <property name="queueNames" value="${rabbit.queue}"></property> 
        <property name="connectionFactory" ref="rabbitConnectionFactory"></property>  
        <property name="messageListener" ref="receiveListenerAdapter"></property>  
    </bean>  
    <!-- 监听生产者发送的消息结束 -->  
</beans>

5.接收消息启动类Receive.java

package cn.slimsmart.rabbitmq.demo.spring.async;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Receive {

	public static void main(String[] args) {
		 new ClassPathXmlApplicationContext("applicationContext-rabbitmq-async-receive.xml");
	}
}

启动接收消息，再发送消息

Received: test spring async=>0
Received: test spring async=>1
Received: test spring async=>2
Received: test spring async=>3
Received: test spring async=>4
Received: test spring async=>5
Received: test spring async=>6
Received: test spring async=>7
......

若报如下错误，说明消息队列不存在，请在控制台添加消息队列。

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.springframework.context.ApplicationContextException: Failed to start bean 'listenerContainer'; nested exception is org.springframework.amqp.AmqpIllegalStateException: Fatal exception on listener startup
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:170)
	at org.springframework.context.support.DefaultLifecycleProcessor.access$1(DefaultLifecycleProcessor.java:154)
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:339)
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:143)
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:108)
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:931)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472)
	at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:73)
	at cn.slimsmart.rabbitmq.demo.spring.async.Consumer.main(Consumer.java:7)
Caused by: org.springframework.amqp.AmqpIllegalStateException: Fatal exception on listener startup
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doStart(SimpleMessageListenerContainer.java:333)
	at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.start(AbstractMessageListenerContainer.java:360)
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:167)
	... 8 more
Caused by: org.springframework.amqp.rabbit.listener.FatalListenerStartupException: Cannot prepare queue for listener. Either the queue doesn't exist or the broker will not allow us to use it.
	at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:228)
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:516)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException
	at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:106)
	at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:102)
	at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:124)
	at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:788)
	at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:348)
	at com.sun.proxy.$Proxy8.queueDeclarePassive(Unknown Source)
	at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:213)
	... 2 more
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'spring-queue-async' in vhost '/', class-id=50, method-id=10), null, ""}
	at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:67)
	at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:33)
	at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:343)
	at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:216)
	at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:118)
	... 11 more
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'spring-queue-async' in vhost '/', class-id=50, method-id=10), null, ""}
	at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:473)
	at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:313)
	at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:144)
	at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:91)
	at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:533)

控制台添加队列。