RabbitMQ整合Spring Cloud

一 项目架构

二 编写生产者

1 添加依赖

      <dependencies>
            <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-config</artifactId>
            </dependency>
            <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-eureka</artifactId>
            </dependency>
            <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
            </dependency>
      </dependencies>

2 配置文件

server:
  port: 8080
spring:
  application:
    name: spring-msg-producer
  #默认配置，可不配置
  #rabbitmq:
  #  host: localhost
  #  port: 5672
  #  username: guest
  #  password: guest
eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/

3 新建接口

package org.crazyit.cloud;

import org.springframework.cloud.stream.annotation.Output;
import org.springframework.messaging.SubscribableChannel;

public interface SendService {
    //绑定通道名
    @Output("myInput")
    SubscribableChannel sendOrder();
}

4 新建启动类

package org.crazyit.cloud;

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.stream.annotation.EnableBinding;

@SpringBootApplication
@EnableEurekaClient
@EnableBinding(SendService.class)
public class ProducerApp {

    public static void main(String[] args) {
        new SpringApplicationBuilder(ProducerApp.class).run(args);
    }

}

5 编写控制器，发送消息

package org.crazyit.cloud;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.Message;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestController {
    
    @Autowired
    private SendService sendService;

    @RequestMapping(value = "/send", method = RequestMethod.GET)
    public String send() {
        Message msg = MessageBuilder.withPayload("Hello World".getBytes()).build();
        sendService.sendOrder().send(msg);
        return "success";
    }

}

6 启动项目

7 测试

三 编写消费者

1 添加依赖

      <dependencies>
            <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-config</artifactId>
            </dependency>
            <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-eureka</artifactId>
            </dependency>
            <dependency>
                  <groupId>org.springframework.cloud</groupId>
                  <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
            </dependency>
      </dependencies>

2 编写接口

package org.crazyit.cloud;

import org.springframework.cloud.stream.annotation.Input;
import org.springframework.messaging.SubscribableChannel;

public interface ReceiveService {
    //绑定通道名
    @Input("myInput")
    SubscribableChannel myInput();
}

3 新建启动类

package org.crazyit.cloud;

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.StreamListener;

@SpringBootApplication
@EnableEurekaClient
@EnableBinding(ReceiveService.class)
public class ConsumerApp {

    public static void main(String[] args) {
        new SpringApplicationBuilder(ConsumerApp.class).web(true).run(args);
    }

    //监听消息
    @StreamListener("myInput")
    public void onReceive(byte[] msg) {
        System.out.println("消息者1，接收到的消息：" + new String(msg));
    }
}

4 启动消费者

四 测试

浏览器输入：http://localhost:8080/send

消费者控制台输出：

消息者1，接收到的消息：Hello World