SpringBoot+Redis发布与订阅demo

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文章标签：

#redis #java #spring boot

Redis 同时被 2 个专栏收录

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本文介绍了如何在SpringBoot应用中集成Redis，实现消息发布与订阅功能，包括定义接收消息接口、创建消息处理类、配置Redis消息监听器和定义消息发布者。通过实例演示了如何向channel和crm频道发送信息。

随着了解了Redis入门（五）—— 发布与订阅
尝试将redis和SpringBoot进行集成构建了一个简单的demo

一、引入依赖

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!--redis-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-redis</artifactId>
            <version>1.3.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

二、编码

2.1 定义接收信息接口

@Component
public interface RedisMsg {

    void recevierMsg(String content);
}

2.2 消息处理类

实现RedisMsg接口

@Component
public class RedisChannelSub implements RedisMsg {
    @Override
    public void recevierMsg(String content) {
        System.out.println("Channel频道收到消息："+content);
    }
}

@Component
public class CRMChannelSub implements RedisMsg {
    @Override
    public void recevierMsg(String content) {
        System.out.println("CRM频道收到消息："+content);
    }
}

2.3 配置redis消息监听器

@Configuration
@EnableCaching
public class RedisListenerConfig {

    /**
     * redis消息监听器容器
     */
    @Bean
    RedisMessageListenerContainer container(RedisConnectionFactory redisConnectionFactory){
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(redisConnectionFactory);
        //订阅了channel通道
        container.addMessageListener(listenerAdapter(new RedisChannelSub()),new PatternTopic("channel"));
        //订阅了crm通道
        container.addMessageListener(listenerAdapter(new CRMChannelSub()),new PatternTopic("crm"));
        return container;
    }

    /**
     * 配置消息处理类
     * @param redisMsg
     * @return
     */
    @Bean
    @Scope("prototype")
    MessageListenerAdapter listenerAdapter(RedisMsg redisMsg){
        return new MessageListenerAdapter(redisMsg,"recevierMsg");
    }


}

2.4 定义消息发布者

@RestController
public class RedisPublisher {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @RequestMapping("/issue")
    public void issue(@RequestParam("channel") String channel,@RequestParam("content") String content){
        stringRedisTemplate.convertAndSend(channel,content);
    }
}