SpringCloud Stream使用解析

 <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
    </dependency>

server:
 port: 8801

spring:
 application:
  name: cloud-stream-provider
 rabbitmq:
  host: 192.168.43.76
  port: 5672
  username: guest
  password: guest
 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，用于于binding整合
     type: rabbit # 消息组件类型
#     environment: # 设置rabbitmq的相关的环境配置，（本机方式）
#      spring:
#       rabbitmq:
#        host: localhost
#        port: 5672
#        username: guest
#        password: guest
   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，文本则设置“text/plain”
     binder: defaultRabbit # 设置要绑定的消息服务的具体设置(爆红不要管)

eureka:
 client: # 客户端进行Eureka注册的配置
  service-url:
   defaultZone: http://localhost:7001/eureka
 instance:
  lease-renewal-interval-in-seconds: 2 # 设置心跳的时间间隔（默认是30秒）
  lease-expiration-duration-in-seconds: 5 # 如果现在超过了5秒的间隔（默认是90秒）
  instance-id: send-8801.com # 在信息列表时显示主机名称
  prefer-ip-address: true   # 访问的路径变为IP地址

import org.lzl.springcloud.service.IMessageProvider;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.support.MessageBuilder;
import javax.annotation.Resource;
import java.util.UUID;


//注意这里不需要写@Service，因为该service是跟rabbitmq打交道的
@EnableBinding(Source.class)//定义消息的推送管道
public class MessageProviderImpl implements IMessageProvider {

  @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;
  }
}

import org.lzl.springcloud.service.IMessageProvider;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;

@RestController
public class SendMessageController {
  @Resource
  private IMessageProvider messageProvider;

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

	<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

server:
 port: 8802

spring:
 application:
  name: cloud-stream-consumer
 rabbitmq:
  host: 192.168.43.76
  port: 5672
  username: guest
  password: guest
 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，用于于binding整合
     type: rabbit # 消息组件类型
#     environment: # 设置rabbitmq的相关的环境配置
#      spring:
#       rabbitmq:
#        host: localhost
#        port: 5672
#        username: guest
#        password: guest
   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，本次为对象json，如果是文本则设置“text/plain”
     binder: defaultRabbit # 设置要绑定的消息服务的具体设置



eureka:
 client: # 客户端进行Eureka注册的配置
  service-url:
   defaultZone: http://localhost:7001/eureka
 instance:
  lease-renewal-interval-in-seconds: 2 # 设置心跳的时间间隔（默认是30秒）
  lease-expiration-duration-in-seconds: 5 # 如果现在超过了5秒的间隔（默认是90秒）
  instance-id: receive-8802.com # 在信息列表时显示主机名称
  prefer-ip-address: true   # 访问的路径变为IP地址

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.messaging.Message;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

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

  @StreamListener(Sink.INPUT)//只要8801发送消息，8802就会接收到8801的消息
  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);
  }

}