springcloud stream消息驱动步骤

一、springcloud stream生产者

1. 配置主启动类

@SpringBootApplication
public class StreamMQMain8801 {

    public static void main(String[] args) {
        SpringApplication.run(StreamMQMain8801.class,args);
    }

}

2. 配置service层的IMessageProvider

创建一个service包

public interface IMessageProvider {

    public String send();

}

创建它的实现类

@EnableBinding(Source.class) // 定义消息推送的管道
public class IMessageProviderImpl implements IMessageProvider {

    /**
     * 消息发送管道
     */
    @Resource
    private MessageChannel output;

    @Override
    public String send() {
        String serial = UUID.randomUUID().toString();
        output.send(MessageBuilder.withPayload(serial).build());
        System.out.println("serial = " + serial);
        return null;
    }
}

3. 配置controller层的SendMessageController

@RestController
public class SendMessageController {

    @Resource
    private IMessageProvider messageProvider;

    @GetMapping("/sendMessage")
    public String sendMessage() {
        return messageProvider.send();
    }

}

4. 配置application

server:
  port: 8801

spring:
  application:
    name: cloud-stream-provider
  cloud:
    stream:
      binders: # 在此处配置要绑定的rabbitMQ的服务信息
        defaultRabbit: # 表示定义的名称，用于binding的整合
          type: rabbit # 消息中间件类型
          environment: # 设置rabbitMQ的相关环境配置
            spring:
              rabbitmq:
                host: 
                port: 5672
                username: 
                password: 
                virtual-host: /
      bindings: # 服务的整合处理
        output: # 这个名字是一个通道的名称
          destination: studyExchange # 表示要使用的exchange名称定义
          content-type: application/json # 设置消息类型，本次为json，文本则设为text/plain
          binder: defaultRabbit # 设置要绑定的消息服务的具体设置
  
eureka:
  client:
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka
  instance:
    lease-renewal-interval-in-seconds: 2 # 设置心跳的间隔时间，默认30
    lease-expiration-duration-in-seconds: 5 # 超过5秒间隔，默认90
    instance-id: send-8801.com # 主机名
    prefer-ip-address: true # 显示ip

二、springcloud stream消费者

1. 配置主启动类

@SpringBootApplication
public class StreamMQMain8802 {

    public static void main(String[] args) {
        SpringApplication.run(StreamMQMain8802.class,args);
    }

}

2. 配置controller层的ReceiveMessageListenerController

@Component
@EnableBinding(Sink.class)
public class ReceiveMessageListenerController {
    @Value("${server.port}")
    private String serverPort;

    @StreamListener(Sink.INPUT)
    public void input(Message<String> message){
        System.out.println("消费者1号，------->接收到的消息： "+message.getPayload()+"\t port: "+serverPort);
    }
}

3. 配置application

server:
  port: 8802


spring:
  application:
    name: cloud-stream-consumer
  cloud:
    stream:
      binders: # 在此处配置要绑定的rabbitMQ的服务信息
        defaultRabbit: # 表示定义的名称，用于binding的整合
          type: rabbit # 消息中间件类型
          environment: # 设置rabbitMQ的相关环境配置
            spring:
              rabbitmq:
                host: 
                port: 5672
                username: 
                password: 
      bindings: # 服务的整合处理
        input: # 这个名字是一个通道的名称
          destination: studyExchange # 表示要使用的exchange名称定义
          content-type: application/json # 设置消息类型，本次为json，文本则设为text/plain
          binder: defaultRabbit # 设置要绑定的消息服务的具体设置

eureka:
  client:
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka
  instance:
    lease-renewal-interval-in-seconds: 2 # 设置心跳的间隔时间，默认30
    lease-expiration-duration-in-seconds: 5 # 超过5秒间隔，默认90
    instance-id: receive-8802.com #主机名
    prefer-ip-address: true # 显示ip