我正在尝试使用 Spring 4
向安装在我的 localhost
上的 RabbitMQ
发送消息,但由于某种原因,消息未发送我也没有收到任何错误。在我看来,我的 Spring 配置 (beans.xml
) 不正确。
请指导。
pom.xml
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.0.2.RELEASE</version>
</dependency>
<!-- RabbitMQ -->
<dependency>
<groupId>org.springframework.amqp</groupId>
<artifactId>spring-rabbit</artifactId>
<version>1.5.5.RELEASE</version>
</dependency>
</dependencies>
beans.xml
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:flow="http://www.springframework.org/schema/webflow-config"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:jms="http://www.springframework.org/schema/jms"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
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/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/webflow-config http://www.springframework.org/schema/webflow-config/spring-webflow-config.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit-1.5.xsd">
<bean id="helloWorld" class="com.study.jms.HelloWorld">
<property name="message" value="Hello World (Spring-RabbitMQ)!" />
</bean>
<rabbit:connection-factory id="rabbitConnectionFactory" host="localhost" username="guest" password="guest" port="5672"/>
<rabbit:template id="amqpTemplate" connection-factory="rabbitConnectionFactory"/>
<rabbit:admin connection-factory="rabbitConnectionFactory"/>
<rabbit:queue name="helloQueue"/>
</beans>
Main.java
public class Main {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
HelloWorld helloWorld = (HelloWorld) context.getBean("helloWorld");
//send message
System.out.println("Sending message....");
AmqpTemplate template = context.getBean(AmqpTemplate.class);
template.convertAndSend(helloWorld.getMessage());
}
}
HelloWorld.java
public class HelloWorld {
private String message;
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
最佳答案
您需要告诉 RabbitMQ 如何路由消息。
由于您没有创建交换器或将队列绑定(bind)到交换器,因此您可以使用队列名称路由到默认交换器 (""
)。
您需要将模板上的 routingKey
属性(routing-key
属性)设置为队列名称,或者需要将其包含在 中ConvertAndSend
调用:
template.convertAndSend("", "helloQueue", helloWorld.getMessage());
RabbitMQ 只是丢弃已成功传递到交换器但未路由到任何队列的消息。
请参阅RabbitMQ Tutorials了解交换、路由 key 等。
Spring AMQP samples repo有 Spring Boot 版本的教程。
关于java - 无法使用 Spring 向 RabbitMQ 发送消息,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36925660/