SpringBoot使用Redisson实现延迟执行的完整示例

<dependency>
 
  <groupId>org.redisson</groupId>
 
  <artifactId>redisson-spring-boot-starter</artifactId>
 
  <version>3.16.4</version>
 
</dependency>

redisson.address=redis://127.0.0.1:6379

redisson:address: redis://127.0.0.1:6379

import org.redisson.Redisson;
 
import org.redisson.api.RedissonClient;
 
import org.redisson.config.Config;
 
import org.springframework.beans.factory.annotation.Value;
 
import org.springframework.context.annotation.Bean;
 
import org.springframework.context.annotation.Configuration;
 
 
 
@Configuration
 
public class RedissonConfig {
 
 
 
    @Value("${redisson.address}")
 
    private String address;
 
 
 
    @Bean
 
    public RedissonClient redissonClient() {
 
        Config config = new Config();
 
        config.useSingleServer().setAddress(address);
 
        return Redisson.create(config);
 
    }
 
}

import org.redisson.api.RDelayedQueue;
 
import org.redisson.api.RedissonClient;
 
import org.springframework.beans.factory.annotation.Autowired;
 
import org.springframework.stereotype.Service;
 
 
 
import java.util.concurrent.ExecutorService;
 
import java.util.concurrent.Executors;
 
import java.util.concurrent.TimeUnit;
 
 
 
@Service
 
public class DelayedExecutionService {
 
 
 
    @Autowired
 
    private RedissonClient redissonClient;
 
 
 
    private final ExecutorService executorService = Executors.newFixedThreadPool(10);
 
 
 
    public void addTaskToQueue(String taskId, long delay, TimeUnit timeUnit) {
 
        RDelayedQueue<String> delayedQueue = redissonClient.getDelayedQueue("myDelayedQueue");
 
        delayedQueue.offer(taskId, delay, timeUnit);
 
    }
 
 
 
    public void processTaskFromQueue() {
 
        RDelayedQueue<String> delayedQueue = redissonClient.getDelayedQueue("myDelayedQueue");
 
        String taskId = delayedQueue.poll();
 
        if (taskId != null) {
 
            executorService.submit(() -> {
 
                System.out.println("Task executed: " + taskId);
 
                // 在这里执行你的任务逻辑
 
            });
 
        }
 
    }
 
}

import org.springframework.beans.factory.annotation.Autowired;
 
import org.springframework.web.bind.annotation.GetMapping;
 
import org.springframework.web.bind.annotation.RestController;
 
 
 
@RestController
 
public class DelayedExecutionController {
 
 
 
    @Autowired
 
    private DelayedExecutionService delayedExecutionService;
 
 
 
    @GetMapping("/addTask")
 
    public String addTask() {
 
        delayedExecutionService.addTaskToQueue("task1", 5, TimeUnit.SECONDS);
 
        return "Task added to the queue";
 
    }
 
 
 
    @GetMapping("/processTask")
 
    public String processTask() {
 
        delayedExecutionService.processTaskFromQueue();
 
        return "Task processing started";
 
    }
 
}