无需在Spring Boot的应用程序属性中提供用户名和密码即可连接到RabbitMQ

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-amqp</artifactId>
</dependency>

spring.rabbitmq.host=your-rabbitmq-host
spring.rabbitmq.port=your-rabbitmq-port
spring.rabbitmq.username=your-username
spring.rabbitmq.password=your-password

import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitMQConfig {

    @Value("${spring.rabbitmq.host}")
    private String rabbitmqHost;

    @Value("${spring.rabbitmq.port}")
    private int rabbitmqPort;

    @Value("${spring.rabbitmq.username}")
    private String rabbitmqUsername;

    @Value("${spring.rabbitmq.password}")
    private String rabbitmqPassword;

    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setHost(rabbitmqHost);
        connectionFactory.setPort(rabbitmqPort);
        connectionFactory.setUsername(rabbitmqUsername);
        connectionFactory.setPassword(rabbitmqPassword);
        return connectionFactory;
    }
}

import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitMQConfig {

    // ...

    @Bean
    public RabbitTemplate rabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        // 配置其他属性，如消息转换器、交换机、队列等
        return rabbitTemplate;
    }
}