当我使用标头交换时使用Spring AMQP，所有消息都被发送到队列，而不管标头内容如何 . 更具体地说，我在xml中声明我只想在 Headers 中添加带有“betty rubble”的消息，但仍然会出现不匹配的消息 . 我究竟做错了什么？我希望能够以编程方式执行它，所以我也尝试使用BindingBuilder类，但也没有喜悦 . 似乎没有任何与spring amqp或BindingBuilder的示例交换标头的示例 .
我已成功使用java和普通兔api使用这些标头进行路由/过滤，但Spring提供了一些我想要使用的优雅包装 .
我正在使用Spring Core 3.2.2.RELEASE，Spring AMQP 1.1.4.RELEASE，RabbitMq 3.0.4而不使用Spring Integration . 这是我的代码以测试的形式（可能有一天断言:-)
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:applicationContext-test-rabbit.xml" })
public class SpringRabbitTest {
@Autowired
private AmqpTemplate amqpTemplate;
@Autowired
private HeadersExchange headersExchange;
@Autowired
private MessageConverter converter;
@Autowired
@Qualifier("mymessage.consumer")
private Queue consumerQ;
@Test
public void headersTest() throws InterruptedException {
MessageProperties messageProperties = new MessageProperties();
messageProperties.setHeader("fred", "flintstone");
messageProperties.setHeader("wilma", "flintstone");
messageProperties.setHeader("barney", "rubble");
MyMessage myMessage = new MyMessage("just an example");
Message message = converter.toMessage(myMessage, messageProperties);
amqpTemplate.convertAndSend(headersExchange.getName(),"", message);
Thread.sleep(5000);
}
}
app Ctx
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:task="http://www.springframework.org/schema/task" xmlns:rabbit="http://www.springframework.org/schema/rabbit"
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/task http://www.springframework.org/schema/task/spring-task-3.0.xsd
http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit-1.1.xsd" >
<context:component-scan base-package="uk.co.abc" />
<rabbit:connection-factory id="connectionFactory" host="localhost" username="guest" password="guest" virtual-host="/" port="5672" />
<bean id="jsonMessageConverter" class="org.springframework.amqp.support.converter.JsonMessageConverter"/>
<rabbit:template connection-factory="connectionFactory" id="amqpTemplate" message-converter="jsonMessageConverter"/>
<rabbit:admin connection-factory="connectionFactory" />
<rabbit:queue id="mymessage.consumer" name="mymessage.consumer"/>
<rabbit:headers-exchange name="headers.mymessage.all" id="headers.mymessage.all" >
<rabbit:bindings >
<rabbit:binding queue="mymessage.consumer" key="betty" value="rubble" />
<!-- <rabbit:binding queue="mymessage.consumer" key="fred" value="flintstone" /> -->
<!-- <rabbit:binding queue="mymessage.consumer" key="barney" value="rubble" /> -->
</rabbit:bindings>
</rabbit:headers-exchange>
<rabbit:listener-container connection-factory="connectionFactory" message-converter="jsonMessageConverter" error-handler="loggingErrorHandler">
<rabbit:listener queues="mymessage.consumer" ref="myMessageHandler" method="handleMyMessage" />
</rabbit:listener-container>
</beans>
消息 beans
package uk.co.abc;
public class MyMessage {
private String message;
public MyMessage() {
}
public MyMessage(String message) {
this.message = message;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
@Override
public String toString() {
return "MyMessage [message=" + message + "]";
}
}
处理器
package uk.co.abc;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;
@Component
@Qualifier("myMessageHandler")
public class MyMessageHandler {
public void handleMyMessage(MyMessage myMessage) {
System.out.println("Got it! " + myMessage);
} }
为了完整，pom
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<properties>
<spring.amqp.version>1.1.4.RELEASE</spring.amqp.version>
<rabbitmq.version>3.0.4</rabbitmq.version>
<spring.version>3.2.2.RELEASE</spring.version>
<log4j.version>1.2.16</log4j.version>
<slf4j.version>1.5.2</slf4j.version>
</properties>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-amqp</artifactId>
<version>${spring.amqp.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
<version>${spring.amqp.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-erlang</artifactId>
<version>${spring.amqp.version}</version>
</dependency>
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>${rabbitmq.version}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.12</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-lgpl</artifactId>
<version>1.9.12</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<optional>true</optional>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
</dependencies>
</project>
调试日志意味着交换机没有设置标头
DEBUG [org.springframework.amqp.rabbit.connection.CachingConnectionFactory] - Creating cached Rabbit Channel from AMQChannel(amqp://guest@127.0.0.1:5672/,1)
DEBUG [org.springframework.amqp.rabbit.core.RabbitTemplate] - Executing callback on RabbitMQ Channel: Cached Rabbit Channel: AMQChannel(amqp://guest@127.0.0.1:5672/,1)
DEBUG [org.springframework.amqp.rabbit.core.RabbitAdmin] - declaring Exchange 'headers.mymessage.all'
DEBUG [org.springframework.amqp.rabbit.core.RabbitAdmin] - declaring Queue 'mymessage.consumer'
DEBUG [org.springframework.amqp.rabbit.core.RabbitAdmin] - Binding destination [mymessage.consumer (QUEUE)] to exchange [headers.mymessage.all] with routing key []
DEBUG [org.springframework.amqp.rabbit.core.RabbitAdmin] - Declarations finished
DEBUG [org.springframework.amqp.rabbit.listener.BlockingQueueConsumer] - Started on queue 'mymessage.consumer': Consumer: tag=[null], channel=Cached Rabbit Channel: AMQChannel(amqp://guest@127.0.0.1:5672/,1), acknowledgeMode=AUTO local queue size=0
DEBUG [org.springframework.amqp.rabbit.listener.BlockingQueueConsumer] - Retrieving delivery for Consumer: tag=[null], channel=Cached Rabbit Channel: AMQChannel(amqp://guest@127.0.0.1:5672/,1), acknowledgeMode=AUTO local queue size=0
DEBUG [org.springframework.amqp.rabbit.connection.CachingConnectionFactory] - Creating cached Rabbit Channel from AMQChannel(amqp://guest@127.0.0.1:5672/,2)
DEBUG [org.springframework.amqp.rabbit.core.RabbitTemplate] - Executing callback on RabbitMQ Channel: Cached Rabbit Channel: AMQChannel(amqp://guest@127.0.0.1:5672/,2)
DEBUG [org.springframework.amqp.rabbit.core.RabbitTemplate] - Publishing message on exchange [headers.mymessage.all], routingKey = []
DEBUG [org.springframework.amqp.rabbit.listener.BlockingQueueConsumer] - Storing delivery for Consumer: tag=[amq.ctag-JS6zwiLjp6cGSNbieRTlvw], channel=Cached Rabbit Channel: AMQChannel(amqp://guest@127.0.0.1:5672/,1), acknowledgeMode=AUTO local queue size=0
DEBUG [org.springframework.amqp.rabbit.listener.BlockingQueueConsumer] - Received message: (Body:'{"message":"just an example"}'; ID:null; Content:application/json; Headers:{wilma=flintstone, fred=flintstone, __TypeId__=uk.co.abc.MyMessage, barney=rubble}; Exchange:headers.mymessage.all; RoutingKey:; Reply:null; DeliveryMode:PERSISTENT; DeliveryTag:1)
Got it! MyMessage [message=just an example]
1 回答
我强烈建议你不要使用 Headers 路由，与Topic和Pivotal相比，它的性能是可怕的，他们已经说过不使用它 .
http://techblog.betgenius.com/performance-tuning-our-rabbitmq-routing-strategy/