Exception in thread "main" java.net.ConnectException: Connection timed out: connect at java.base/java.net.PlainSocketImpl.waitForConnect(Native Method) at java.base/java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:107) at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399) at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242) at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224) at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403) at java.base/java.net.Socket.connect(Socket.java:608) at com.rabbitmq.client.impl.SocketFrameHandlerFactory.create(SocketFrameHandlerFactory.java:60) at com.rabbitmq.client.impl.recovery.RecoveryAwareAMQConnectionFactory.newConnection(RecoveryAwareAMQConnectionFactory.java:62) at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.init(AutorecoveringConnection.java:156) at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1130) at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1087) at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1045) at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1207) at net.xdclass.simple.Send.main(Send.java:22)
解决方法：添加端口
