我正在用spring boot 2.2.7编写一个简单的rabbitmq producer。
在broker端,我已经设置了一个 直接交换 样品 , a 队列 名为 样品.默认 并将它们捆绑在一起,增加了一个 样品.默认 绑定键.
当运行应用程序时,我得到以下错误
Attempting to connect to: [127.0.0.1:5672]
2020-05-14 15:13:39.232 INFO 28393 --- [nio-8080-exec-1] o.s.a.r.c.CachingConnectionFactory : Created new connection: rabbitConnectionFactory#2f860823:0/SimpleConnection@3946e760 [delegate=amqp://[email protected]:5672/, localPort= 34710]
2020-05-14 15:13:39.267 ERROR 28393 --- [ 127.0.0.1:5672] o.s.a.r.c.CachingConnectionFactory : Channel shutdown: channel error; protocol method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no exchange '"samples"' in vhost '/', class-id=60, method-id=40)
rabbitmq服务器的配置是正确的,因为我有一个python生产者,它已经把消息成功地放在 "samples.default "队列中。
在Spring boot中,我使用Jackson序列化,但我认为这不是问题所在,因为我已经测试了没有Jakson序列化配置的代码,问题还是一样。
我的broker配置是在 应用程序.属性 :
#spring.rabbitmq.host=localhost
spring.rabbitmq.addresses=127.0.0.1
spring.rabbitmq.port=5672
spring.rabbitmq.username=xxxx
spring.rabbitmq.password=xxxx
broker.exchange = "samples"
broker.routingKey = "samples.default"
请注意,使用spring.rabbitmq.host是行不通的,因为它的结果是使用我的互联网提供商地址。 !
并在 经纪人论坛 配置类。
@Configuration
public class BrokerConf {
@Bean("publisher")
MessagePublisher<BaseSample> baseSamplePublisher(RabbitTemplate rabbitTemplate) {
return new MessagePublisher<BaseSample>(rabbitTemplate);
}
@Bean
public RabbitTemplate rabbitTemplate(final ConnectionFactory connectionFactory) {
final var rabbitTemplate = new RabbitTemplate(connectionFactory);
rabbitTemplate.setMessageConverter(producerJackson2MessageConverter());
return rabbitTemplate;
}
@Bean
public MessageConverter producerJackson2MessageConverter() {
return new Jackson2JsonMessageConverter();
}
}
发布者的基类是:
@Component
public class MessagePublisher<T> {
private static final Logger log = LoggerFactory.getLogger(MessagePublisher.class);
private final RabbitTemplate rabbitTemplate;
public MessagePublisher(RabbitTemplate r) {
rabbitTemplate = r;
}
public void publish(List<BaseSample> messages, String exchange, String routingKey) {
for (BaseSample message: messages) {
rabbitTemplate.convertAndSend(exchange, routingKey, message);
}
}
}
我在一个休息控制器中使用
private static final Logger logger = LoggerFactory.getLogger(SamplesController.class);
@Autowired
private MessagePublisher<BaseSample> publisher;
@Value("${broker.exchange}")
private String exchange;
@Value("${broker.routingKey}")
private String routingKey;
@PutMapping(value = "/new", produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<SampleAck> add(@RequestBody List<BaseSample> samples) {
publisher.publish(samples, exchange, routingKey);
return ResponseEntity.ok(new SampleAck(samples.size(), new Date()));
}
所以经纪商的连接是正常的,但是找不到交易所。
和rabbitmq资源存在
xxxxxx@xxxxxxx:~/factory/udc-collector$ sudo rabbitmqctl list_exchanges
Listing exchanges for vhost / ...
name type
amq.topic topic
amq.rabbitmq.trace topic
amq.match headers
amq.direct direct
amq.fanout fanout
direct
amq.rabbitmq.log topic
amq.headers headers
samples direct
xxxx@xxxxx:~/factory/udc-collector$ sudo rabbitmqctl list_queues
Timeout: 60.0 seconds ...
Listing queues for vhost / ...
name messages
samples.default 2
任何想法?
先谢谢你。
错误似乎很明显。
在vhost中没有交换'"samples"'。
broker.exchange = "samples"
broker.routingKey = "samples.default"
删除引号
broker.exchange=samples
broker.routingKey=samples.default