Amqp客戶端未連接到activemq服務器。

Question

我正在嘗試使用默認設置從amqp客戶端連接到aqtivemq服務器。 它總是給出錯誤消息，指出連接被拒絕。 然后，我用Rabbitmq服務器而不是activemq服務器嘗試了它，並且工作正常。 我不知道activemq是否需要Linux庫進行通信。

使用的Activemq服務器版本未連接：5.4.2 / 5.10.0使用的Rabitmq版本：3.3.5

rabitmq示例客戶端代碼

import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.Channel;

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

    public static void main(String[] argv)
            throws java.io.IOException {

        //creating the connection factory
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");

        //Creating a connection to the server
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        //declaring a queuw
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        String message = "Hello World!";

        //publishing the queue the queue
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");

        //closing the connection
        channel.close();
        connection.close();
    }
}

在以下代碼行中失敗

//Creating a connection to the server
    Connection connection = factory.newConnection();

我該如何解決這個問題？

Answer 1

我發現了一個類似的問題，並通過以下方式固定檢查了聲明的交換是否等於用於發布的通道：

@Test
public void test() throws KeyManagementException, NoSuchAlgorithmException, URISyntaxException, IOException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("10.211.55.20");
    factory.setPort(5672);
    factory.setVirtualHost("/");
    factory.setUsername("guest");
    factory.setPassword("guest");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.exchangeDeclare("KipcastDirect", "direct", 
           true,    /* durable */
           true,    /* autodelete */
           null);   /* */

    byte[] messageBodyBytes = "Hello, world!".getBytes();

    AMQP.BasicProperties.Builder basic = new AMQP.BasicProperties.Builder();
    AMQP.BasicProperties minBasic = basic.build();

    minBasic = basic.priority(0).deliveryMode(1).build();

    channel.basicPublish("KipcastDirect", "KipcastRouting", minBasic, messageBodyBytes);
    System.out.println(" [x] Sent ");

    channel.close();
}

請小心：Camel Spring DSL上下文中的URI（從和到）和JUnit類必須引用相同的Exchange和隊列，以防止reply-text = PRECONDITION_FAILED –虛擬主機'/'中隊列'QUEUE'的參數不等效錯誤或類似。 要檢查隊列/交換配置參數，請使用：

rabbitmqadmin -V / list queue
rabbitmqadmin -V test list exchanges

看看這個： http : //www.andreagirardi.it/blog/camel-and-rabbitmq-finally-how-to/