（转） RabbitMQ学习之spring整合发送异步消息

http://blog.csdn.net/zhu_tianwei/article/details/40919031

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

[plain] view plaincopy print?

#============== 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：

[html] view plaincopy print?

<?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>
<value>classpath*:/application.properties</value>
</list>
</property>
</bean>
<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>
<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

[java] view plaincopy print?

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

[java] view plaincopy print?

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：

[html] view plaincopy print?

<?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>
<value>classpath*:/application.properties</value>
</list>
</property>
</bean>
<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>
<bean id="messageConverter"
class="org.springframework.amqp.support.converter.SimpleMessageConverter">
</bean>
<bean id="receiveHandler"
class="cn.slimsmart.rabbitmq.demo.spring.async.ReceiveMsgHandler">
</bean>
<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>
<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>
</beans>

5.接收消息启动类Receive.java

[java] view plaincopy print?

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

[plain] view plaincopy print?

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。

[java] view plaincopy print?

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。

转载于:https://www.cnblogs.com/telwanggs/p/7124766.html

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