Installation and simple use of RabbitMQ in Windows 10 system

1. Download and install Erlang

Because the RabbitMQ server is written based on Erlang, Erlang needs to be installed first.

1) Download

The download address is as follows:

https://www.erlang.org/downloads

The download here is relatively slow, you can refer to the following Baidu network disk:
Link: https://pan.baidu.com/s/1oXq5QX3IlzRq5L-mk1gC4Q
Extraction code: luna

2) install

Select the corresponding installation directory, all the way to next.

3) Configure environment variables

Create a new variable in the system variable variable
name (N): ERLANG_HOME
variable value (V): H:\SW_install\erl-24.1

Note: The variable value needs to be modified according to your actual situation

Add ;%ERLANG_HOME%\bin to the end of the Path variable value.

4) Verify the correctness of the environment variable configuration

echo %ERLANG_HOME%

2. Download and install RabbitMQ

1) Download

The download address is as follows:

https://www.rabbitmq.com/install-windows.html#installer

2) install

Select the corresponding installation directory, all the way to next.

3) Configure environment variables

Create a new variable in the system variable variable
name (N): RABBITMQ_SERVER
variable value (V): H:\SW_install\RabbitMQ Server\rabbitmq_server-3.9.7

Note: The variable value needs to be modified according to your actual situation

Add ;%RABBITMQ_SERVER%\sbin to the end of the Path variable value.

4) Verify the correctness of the environment variable configuration

echo %RABBITMQ_SERVER%

5) Install rabbitmq-plugins

The cmd command opens the command line window and enters the rabbitmq installation bin directory (mine is: H:\SW_install\RabbitMQ Server\rabbitmq_server-3.9.7\sbin)

Execute the following command to install the plugin:

rabbitmq-plugins.bat enable rabbitmq_management

If the following error is reported here:
ERLANG_HOME not set correctly
After confirming that the configured environment variables are correct, go from the C: directory to the RabbitMQ installation bin directory layer by layer, and execute the plug-in installation again to solve the problem.

6) Start the RabbitMQ service

net start RabbitMQ

Or
in the sbin directory of rabbitmq, double-click to execute the rabbitmq-server.bat file.

7) Stop the RabbitMQ service

net stop RabbitMQ

8) View service status

rabbitmqctl status

9) Page access to RabbitMQ

http://localhost:15672
account/password: guest / guest

After login, the page is as follows:

3. Simple use of RabbitMQ

1) RabbitMQ's pom reference

<!-- https://mvnrepository.com/artifact/com.rabbitmq/amqp-client -->
<dependency>
    <groupId>com.rabbitmq</groupId>
    <artifactId>amqp-client</artifactId>
    <version>5.13.1</version>
</dependency>

2) Message sender

package com.miracle.luna.rabbitmq;

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

import java.nio.charset.StandardCharsets;

/**
 * @author Miracle Luna
 * @date 2021/10/19
 */
public class SendMQ {
    
    
    private final static String QUEUE_NAME = "hello";

    public static void main(String[] args) throws Exception{
    
    
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setPort(5672);
        factory.setUsername("guest");
        factory.setPassword("guest");

        final Connection connection = factory.newConnection();
        final Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        String message = "Hello, RabbitMQ!";
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes(StandardCharsets.UTF_8));
        System.out.println("Send '" + message + "'");

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

The result of the operation is as follows:

Send 'Hello, RabbitMQ!'

3) Message receiver

package com.miracle.luna.rabbitmq;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.nio.charset.StandardCharsets;

/**
 * @author Miracle Luna
 * @date 2021/10/19
 */
public class RecvMQ {
    
    
    private final static String QUEUE_NAME = "hello";

    public static void main(String[] args) throws Exception{
    
    
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setPort(5672);
        factory.setUsername("guest");
        factory.setPassword("guest");

        final Connection connection = factory.newConnection();
        final Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);

        System.out.println("Waiting for messages...");

        Consumer consumer = new DefaultConsumer(channel) {
    
    
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
    
    
                String message = new String(body, StandardCharsets.UTF_8);
                System.out.println("Received '" + message + "'");
            }
        };

        channel.basicConsume(QUEUE_NAME, true, consumer);
    }
}

The result of the operation is as follows:

Waiting for messages...
Received 'Hello, RabbitMQ!'

You can see the number of messages in all queues in the Queues tab

4. Common commands

1) View user list: rabbitmqctl list_users
2) Add a new user: rabbitmqctl add_user root password
3) Delete a user: rabbitmqctl delete_user test
4) Modify user password: rabbitmqctl change_password root 123456
5) Grant administrator role: rabbitmqctl set_user_tags root administr ator
6 ) Grant user permissions: rabbitmqctl set_permissions -p / root "." "." ".*"
7) View queue list: rabbitmqctl list_queues
8) Delete a queue: rabbitmqctl delete_queue test
9) Reset (if you forget the password, you can apply it Reset, but data will be lost, use with caution!!!):
rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl start_app