rabbitMQ连接超时

Question

我在vm上运行rabbitMQ服务器。我正在学习rabbitMQ java教程。它在vm上本地运行良好，但当尝试从主机发送时，我遇到了一个异常

Exception in thread "main" java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at com.rabbitmq.client.impl.FrameHandlerFactory.create(FrameHandlerFactory.java:32)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:714)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:760)
at Send.main(Send.java:16)

以下是我正在使用的发送代码：

import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Connection;
import java.util.concurrent.TimeoutException;
import com.rabbitmq.client.Channel;

public class Send {
    private final static String QUEUE_NAME = "hello";

    public static void main(String[] args) throws java.io.IOException, TimeoutException {

            ConnectionFactory factory = new ConnectionFactory();
            factory.setHost("192.168.198.100");
            factory.setPort(5672);
            Connection connection = factory.newConnection();
            Channel channel = connection.createChannel();

            channel.queueDeclare(QUEUE_NAME, false, false, false, null);
            String message = "Hello World from Windows!";
            channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
            System.out.println(" [x] Sent '" + message + "'");

            channel.close();
            connection.close();

        }
    }

我可以ping服务器在192.168.198.100但我不能访问管理UI在192.168.198.100:15672/

有人能帮我弄清楚这个问题出了什么问题吗？提前感谢。

Answer 1

1.

您正在使用来宾作为凭据，远程IP不允许使用。

请阅读：新安装后无法访问RabbitMQ web管理界面，则必须添加以下内容：

factory.setPassword("test");
factory.setUsername("test");

2.

是否启用了管理UI？如果不使用：

rabbitmq-plugins enable rabbitmq_management

3.

检查您的防火墙配置，可能端口5672和15672已关闭。您可以使用telnet来测试端口：

telnet 192.168.198.100 5672
Trying 192.168.198.100...
Connected to 192.168.198.100.
Escape character is '^]'.

和：

telnet 192.168.198.100 15672
Trying 192.168.198.100...
Connected to 192.168.198.100.
Escape character is '^]'.