Rabbitmq简单使用

yml的配置添加

spring:
rabbitmq:
port: 5672
host: 123.58.251.228
username: guest
password: guest
virtual-host: admin

Rabbitmq的配置

@Configuration
public class MqConfig {

public static final int DEFAULT_CONCURRENT = 2000;

//声明队列
@Bean("datacenter")
public Queue directQueue(){
return new Queue("datacenter",false); //队列名字，是否持久化
}

//声明交换机
@Bean("DIRECT_EXCHANGE")
public DirectExchange directExchange(){
return new DirectExchange("exchange",false,false);//交换器名称、是否持久化、是否自动删除
}

//将队列绑定到交换机
@Bean
Binding binding1(@Qualifier("datacenter") Queue queue, @Qualifier("DIRECT_EXCHANGE") DirectExchange exchange){
return BindingBuilder.bind(queue).to(exchange).with("datacenter");
}

//设置多线程接收
@Bean("customContainerFactory")
public SimpleRabbitListenerContainerFactory containerFactory(SimpleRabbitListenerContainerFactoryConfigurer configurer,
ConnectionFactory connectionFactory) {
SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
factory.setConcurrentConsumers(10);
factory.setMaxConcurrentConsumers(10);
configurer.configure(factory, connectionFactory);
return factory;
}

}

发送者

@Component
public class TradeSender {

@Autowired
AmqpTemplate rabbitmqTemplate;

public void sendNewTrade(Integer i){
String msg=String.valueOf(i);
rabbitmqTemplate.convertAndSend("trade",msg);
}
}

接收者

@RabbitListener(queues = "datacenter",containerFactory = "customContainerFactory")
public class TradeReceiver {

private static final Logger LOG = LoggerFactory.getLogger(TradeReceiver.class);

@Autowired
private volatile TradeService tradeService;

@Autowired
private Web3j web3j;

@RabbitHandler
public void handler(String msg) throws Exception {
System.out.println(msg);
}
}