Spring Boot实现消息的发送和接收使用实战指南

import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class MessageSender {
    @Autowired
    private RabbitTemplate rabbitTemplate;
    public void sendMessage(String message) {
        rabbitTemplate.convertAndSend("queue_email", message);
        System.out.println("Message sent: " + message);
    }
}

import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
@Component
public class MessageReceiver {
    @RabbitListener(queues = "queue_email")
    public void receiveMessage(String message) {
        System.out.println("Message received: " + message);
    }
}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

spring.rabbitmq.host=localhost
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest

import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class RabbitMQConfig {
 @Bean
 public Queue queue() {
     return new Queue("queue_email");
 }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class MessageController {
    @Autowired
    private MessageSender messageSender;
    @GetMapping("/send-message")
    public String sendMessage() {
        messageSender.sendMessage("Hello, World!");
        return "Message sent";
    }
}