我在Play Framework scala应用程序中使用java-rabbitmq-client。
"com.rabbitmq" % "amqp-client" % "4.0.0"
我经常遇到此异常，几小时后没有任何代码更改或设置更改，它连接并正常工作。
[error] (run-main-0) java.lang.ExceptionInInitializerError
[warn] c.r.c.i.ForgivingExceptionHandler - An unexpected connection driver error occured (Exception message: Socket closed)
java.lang.ExceptionInInitializerError
at utils.mq.email.MQEmailConsumer$.start(MQEmailConsumer.scala:17)
at utils.App$.main(App.scala:20)
at utils.App.main(App.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
Caused by: java.util.concurrent.TimeoutException
at com.rabbitmq.utility.BlockingCell.get(BlockingCell.java:76)
at com.rabbitmq.utility.BlockingCell.uninterruptibleGet(BlockingCell.java:110)
at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:36)
at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:372)
at com.rabbitmq.client.impl.AMQConnection.start(AMQConnection.java:297)
at com.rabbitmq.client.impl.recovery.RecoveryAwareAMQConnectionFactory.newConnection(RecoveryAwareAMQConnectionFactory.java:62)
at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.init(AutorecoveringConnection.java:99)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:900)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:859)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:817)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:954)
连接RabbitMQ的代码如下：
object MQConnection {
val factory: ConnectionFactory = new ConnectionFactory()
factory.setUri(MQConfig.host)
factory.setUsername(MQConfig.username)
factory.setPassword(MQConfig.password)
factory.setVirtualHost(MQConfig.virtualHost)
factory.setConnectionTimeout(MQConfig.connectionTimeout)
val conn: Connection = factory.newConnection()
def getChannel(queueName: String, exchangeName: String, routingKey: String): Channel = {
Logger.info(s"Creating channel with queue ${ queueName }, exchangeName - ${exchangeName}, routingKey - ${routingKey}")
val channel: Channel = conn.createChannel()
channel.exchangeDeclare(
exchangeName,
MQConfig.exchangeType,
MQConfig.durable
)
channel.queueDeclare(queueName, MQConfig.durable, false, false, null)
channel.queueBind(queueName, exchangeName, routingKey)
channel
}
}
尝试启动消费者时，/usr/local/var/log/rabbitmq/rabbit@localhost.log会记录以下详细信息：
=INFO REPORT==== 11-Feb-2017::18:54:43 ===
accepting AMQP connection <0.22922.0> (127.0.0.1:63334 -> 127.0.0.1:5672)
=WARNING REPORT==== 11-Feb-2017::18:54:51 ===
closing AMQP connection <0.22922.0> (127.0.0.1:63334 -> 127.0.0.1:5672):
client unexpectedly closed TCP connection
/usr/local/var/log/rabbitmq/rabbit@localhost-sasl.log中的日志：
=PROGRESS REPORT==== 11-Feb-2017::18:54:43 ===
supervisor: {<0.22920.0>,rabbit_connection_sup}
started: [{pid,<0.22921.0>},
{name,helper_sup},
{mfargs,{rabbit_connection_helper_sup,start_link,[]}},
{restart_type,intrinsic},
{shutdown,infinity},
{child_type,supervisor}]
=PROGRESS REPORT==== 11-Feb-2017::18:54:43 ===
supervisor: {<0.22920.0>,rabbit_connection_sup}
started: [{pid,<0.22922.0>},
{name,reader},
{mfargs,
{rabbit_reader,start_link,
[<0.22921.0>,
{acceptor,{127,0,0,1},5672},
#Port<0.30086>]}},
{restart_type,intrinsic},
{shutdown,30000},
{child_type,worker}]