Java 建立套接字连接时出错
我正在尝试运行下面的程序,但出现以下错误:Java 建立套接字连接时出错,java,rabbitmq,Java,Rabbitmq,我正在尝试运行下面的程序,但出现以下错误: Exception in thread "main" java.net.ConnectException: Connection refused: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at java.net.P
Exception in thread "main" java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at com.rabbitmq.client.ConnectionFactory.createFrameHandler(ConnectionFactory.java:445)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:504)
at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:533)
at Recieve.main(Recieve.java:14)
我正在尝试运行的程序是:
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
public class Send {
private final static String QUEUE_NAME = "hello";
public static void main(String[] argv) throws java.io.IOException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
String message = "Hello World!";
channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
System.out.println(" [x] Sent '" + message + "'");
channel.close();
connection.close();
}
}
我不知道如何进行套接字连接,请告诉我如何解决此问题。以下是代码正常工作时应遵循的步骤:
希望这有帮助 您正在尝试连接到什么?看起来您正在尝试连接到在localhost上运行的RabbitMQ实例。RabbitMQ实例是否已启动并运行并准备好接受连接?@Peter i dint开始运行RabbitMQ实例,请简要介绍一下,如何启动其实例?我在这里遵循以下步骤:你知道你的代码会做什么吗?我想你知道RabbitMQ是什么?您的代码将尝试连接到本地主机上运行的RabbitMQ(MessageBroker)实例,然后创建一个名为“hello”的队列,并向该队列发布消息“hello World!”。因此,为了使代码正常工作,必须在本地主机上运行RabbitMQ服务器实例。您是否遵循了有关安装服务器的说明()