SpringBoot利用redis集成消息隊列

一、pom文件依賴

<dependency> 
 　　<groupId>org.springframework.boot</groupId> 
　　 <artifactId>spring-boot-starter-data-redis</artifactId> 
</dependency>

 

二、創建消息接收者

變量、方法及構造函數進行標注，完成自動裝配的工作。 通過 @Autowired的使用來消除 set ，get方法。
@Autowired public Receiver(CountDownLatch latch) { 
this.latch = latch; 
} 
public void receiveMessage(String message) { 
LOGGER.info("收到的消息： <" + message + ">"); latch.countDown(); } }

 

以上基本條件達成后，以下是實現的三要素：

• 一個連接工廠
• 一個消息監聽容器
• Redis template

 

三、在application.java注入消息接收者

@Bean Receiver receiver(CountDownLatch latch) { 
return new Receiver(latch); } 
@Bean CountDownLatch latch() { 
return new CountDownLatch(1); } 
@Bean StringRedisTemplate template(RedisConnectionFactory connectionFactory) { 
return new StringRedisTemplate(connectionFactory); }

 

四、注入消息監聽容器

//必要的redis消息隊列連接工廠
@Bean
Receiver receiver(CountDownLatch latch) {
return new Receiver(latch);
}
 
//必要的redis消息隊列連接工廠
@Bean
CountDownLatch latch() {
return new CountDownLatch(1);
}
 
//redis模板
@Bean
StringRedisTemplate template(RedisConnectionFactory connectionFactory) {
return new StringRedisTemplate(connectionFactory);
}
 
//注入消息監聽器容器
@Bean
RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory,MessageListenerAdapter listenerAdapter) {
RedisMessageListenerContainer container = new RedisMessageListenerContainer();
container.setConnectionFactory(connectionFactory);
container.addMessageListener(listenerAdapter, new PatternTopic("msg"));
return container;
}
 
//注入消息監聽器容器
@Bean
MessageListenerAdapter listenerAdapter(Receiver receiver) {
return new MessageListenerAdapter(receiver, "receiveMessage");
}

 

五、單元測試

import java.util.concurrent.CountDownLatch;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.ApplicationContext;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.test.context.junit4.SpringRunner;
 
import com.Application;
 
@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class MsgQueueTest {
@Autowired
protected ApplicationContext ctx;
private static final Logger logger = LoggerFactory.getLogger(MsgQueueTest.class);
@Test
public void SendMsg() {
StringRedisTemplate template = ctx.getBean(StringRedisTemplate.class);
CountDownLatch latch = ctx.getBean(CountDownLatch.class);
logger.info("我要發送消息咯...");
template.convertAndSend("msg", "歡迎使用redis的消息隊列!");
try {
//發送消息連接等待中
logger.info("消息正在發送...");
latch.await();
} catch (InterruptedException e) {
logger.info("消息發送失敗...");
}
}
 
}