springcloud: stream整合rocketmq

一、依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>springcloudstreamrocketmq</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <parent>
        <artifactId>spring-boot-starter-parent</artifactId>
        <groupId>org.springframework.boot</groupId>
        <version>2.6.6</version>
    </parent>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR12</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-spring-boot-starter</artifactId>
            <version>2.0.3</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-stream-rocketmq</artifactId>
            <version>2.0.3.RELEASE</version>
        </dependency>
    </dependencies>

</project>

二、配置文件

server:
  port: 9967
spring:
  cloud:
    stream:
      bindings:
        input:
          destination: my-demo7
          group: tju
        output:
          destination: my-demo7
      rocketmq:
        binder:
          nameServer: xx.xx.xx.xx:9876

三、启动类：

package cn.edu.tju;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.cloud.stream.messaging.Source;

@SpringBootApplication
@EnableBinding({Source.class , Sink.class })
public class Start {
    public static void main(String[] args) {
        SpringApplication.run(Start.class, args);
    }
}

四、发送消息的controller

package cn.edu.tju.controller;


import org.apache.rocketmq.common.message.MessageConst;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;


@RestController
public class SendController {
    @Resource
    private MessageChannel output;
    @GetMapping("/test")
    public String test(){
        String uuid = UUID.randomUUID().toString();
        Map<String,Object> headerMap = new HashMap<>();
        headerMap.put(MessageConst.PROPERTY_TAGS,"testTag");
        MessageHeaders messageHeaders = new MessageHeaders(headerMap);
        Message<String> message = MessageBuilder.createMessage(uuid, messageHeaders);
        boolean b = output.send(message);
        //System.out.println(b);

        return "ok";

    }
}

五、接收消息的service

package cn.edu.tju.service;

import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.stereotype.Component;

import java.util.Date;

@Component
public class ReceiveService {
    @StreamListener(Sink.INPUT)
    public void onMessage(String message){
        System.out.print(new Date() + " " + "received: ");
        System.out.println(message);
    }
}