目录

solon 集成 rocketmq5 sdk

使用 rocketmq5 是比较简单的事情。也有些同学对 sdk 原始接口会陌生,会希望有个集成的示例。

xml 复制代码
<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-client-java</artifactId>
    <version>${rocketmq5.version}</version>
</dependency>

完整的集成代码参考:

https://gitee.com/opensolon/solon-examples/tree/main/b.Integration/demoB002-rocketmq5

希望更加简化使用的同学,可以使用:

rocketmq5-solon-cloud-plugin (但定制性会变差)

1、看看配置怎么搞?

使用 Solon 初始器 生成一个 Solon Web 模板项目,然后添加上面的 rocketmq5 依赖。

  • 添加 yml 配置(具体的配置属性,参考:ClientConfigurationBuilder,ProducerBuilder, PushConsumerBuilder)
yaml 复制代码
solon.app:
  name: "demo-app"
  group: "demo"

solon.logging:
  logger:
    root:
      level: INFO

# 配置可以自由定义,与 @Bean 代码对应起来即可(以下为参考)
solon.rocketmq:
  properties:  #公共配置(配置项,参考:ClientConfigurationBuilder)
    endpoints: "127.0.0.1:8081"
    sessionCredentialsProvider:
      "@type": "demoB002.SessionCredentialsProviderImpl" # solon 支持 "@type" 类型申明当前配置节的实例类型
      accessKey: "xxx"
      accessSecret: "xxx"
      securityToken: "xxx"
    requestTimeout: "10s"
  producer: #生产者专属配置(配置项,参考:ProducerBuilder)
    maxAttempts: 3
  consumer: #消费者专属配置(配置项,参考:PushConsumerBuilder)
    consumerGroup: "${solon.app.group}_${solon.app.name}"
    consumptionThreadCount: 2
    maxCacheMessageCount: 1
    maxCacheMessageSizeInBytes: 1
  • 添加 java 配置器
java 复制代码
@Configuration
public class RocketmqConfig {
    private ClientServiceProvider clientProvider = ClientServiceProvider.loadService();
    
    @Bean
    public ClientConfiguration client(@Inject("${solon.rocketmq.properties}") Properties common){
        ClientConfigurationBuilder builder = ClientConfiguration.newBuilder();
        //注入属性
        Utils.injectProperties(builder, common);

        return builder.build();
    }

    @Bean
    public Producer producer(@Inject("${solon.rocketmq.producer}") Properties producer,
                             ClientConfiguration clientConfiguration) throws ClientException {
        ProducerBuilder producerBuilder = clientProvider.newProducerBuilder();

        //注入属性
        if (producer.size() > 0) {
            Utils.injectProperties(producerBuilder, producer);
        }

        producerBuilder.setClientConfiguration(clientConfiguration);

        return producerBuilder.build();
    }

    @Bean
    public PushConsumer consumer(@Inject("${solon.rocketmq.consumer}") Properties consumer,
                                 ClientConfiguration clientConfiguration,
                                 MessageListener messageListener) throws ClientException{

        //按需选择 PushConsumerBuilder 或 SimpleConsumerBuilder
        PushConsumerBuilder consumerBuilder = clientProvider.newPushConsumerBuilder();

        //注入属性
        Utils.injectProperties(consumerBuilder, consumer);

        Map<String, FilterExpression> subscriptionExpressions = new HashMap<>();
        subscriptionExpressions.put("topic.test",  new FilterExpression("*"));

        consumerBuilder.setSubscriptionExpressions(subscriptionExpressions);
        consumerBuilder.setClientConfiguration(clientConfiguration);
        consumerBuilder.setMessageListener(messageListener);

        return consumerBuilder.build();
    }
}

//这个实现类,(相对于 StaticSessionCredentialsProvider)方便配置自动注入
public class SessionCredentialsProviderImpl implements SessionCredentialsProvider {
    private String accessKey;
    private String accessSecret;
    private String securityToken;

    private SessionCredentials sessionCredentials;

    @Override
    public SessionCredentials getSessionCredentials() {
        if (sessionCredentials == null) {
            if (securityToken == null) {
                sessionCredentials = new SessionCredentials(accessKey, accessSecret);
            } else {
                sessionCredentials = new SessionCredentials(accessKey, accessSecret, securityToken);
            }
        }

        return sessionCredentials;
    }
}

2、代码应用

  • 发送(或生产),这里代控制器由用户请求再发送消息(仅供参考):
java 复制代码
@Controller
public class DemoController {
    @Inject
    private Producer producer;

    @Mapping("/send")
    public void send(String msg) throws ClientException {
        //发送
        producer.send(new MessageBuilderImpl()
                .setTopic("topic.test")
                .setBody(msg.getBytes())
                .build());
    }
}
  • 监听(或消费),这里采用订阅回调的方式:(仅供参考)
java 复制代码
@Component
public class DemoMessageListener implements MessageListener {

    @Override
    public ConsumeResult consume(MessageView messageView) {
        System.out.println(messageView);

        return ConsumeResult.SUCCESS;
    }
}
本文是转载文章,点击查看原文
如有侵权,请联系 xyy@jishuzhan.net 删除
相关推荐
佬乔7 分钟前
xml中配置AOP织入
java·服务器·前端
Eugene__Chen8 分钟前
JavaWeb开发基础知识-XML和JSON
java·开发语言·前端
努力学习的小廉21 分钟前
【C++11(上)】—— 我与C++的不解之缘(三十)
java·开发语言·c++
五行星辰23 分钟前
Fastjson 处理 JSON 生成与解析指南
java·json
nlog3n26 分钟前
Java观察者模式详解
java·开发语言·观察者模式
hello_ejb329 分钟前
聊聊Spring AI的MilvusVectorStore
java·人工智能·spring
M malloc1 小时前
【C++奇遇记】C++中的进阶知识(继承(一))
java·jvm·c++
侧耳倾听1111 小时前
单元测试之mockito
java·单元测试
苹果酱05671 小时前
SpringCloud第二篇:注册中心Eureka
java·vue.js·spring boot·mysql·课程设计
圈圈编码1 小时前
WebSocket
java·网络·spring boot·websocket·网络协议·spring