Redis过期监听机制,订单超时自动取消方式

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @date 2023-02-21
 * @author LIZAN
 */
@Configuration
public class RedisListenerConfig {

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 处理乱码
     * @return
     */
    @Bean
    public RedisTemplate redisTemplateInit() {

        // key序列化
        redisTemplate.setKeySerializer(new StringRedisSerializer());

        //val实例化
        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());

        return redisTemplate;
    }

    @Bean
    RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory) {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        return container;
    }
}

import lombok.extern.slf4j.Slf4j;
import org.springframework.data.redis.connection.Message;
import org.springframework.data.redis.listener.KeyExpirationEventMessageListener;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.stereotype.Component;

/**
 * @author LiZan
 * @version 1.0
 * @date 2023/2/21 14:09
 */
@Slf4j
@Component
public class RedisKeyExpirationListener extends KeyExpirationEventMessageListener {
    public RedisKeyExpirationListener(RedisMessageListenerContainer listenerContainer) {
        super(listenerContainer);
    }

    /**
     * 针对redis数据失效事件，进行数据处理
     * @param message 失效的key
     */
    @Override
    public void onMessage(Message message, byte[] pattern) {
        log.info("过期redis数据：" + message.toString());
        try {
            String key = message.toString();
            //从失效key中筛选代表订单失效的key
            String orderWithKey = "order_";
            if (null !=  key && orderWithKey.startsWith(key)) {
                        log.info("订单号为【" + 123456 + "】超时未支付-自动修改为已取消状态");
            }
        } catch (Exception e) {
            e.printStackTrace();
            log.error("【修改支付订单过期状态异常】：" + e.getMessage());
        }
    }
}