springboot项目中监听redis失效相关配置及方法 ChenYuan

package com.hxh.basic.project.redis;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.hxh.basic.project.listen.RedisKeyExpirationListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.listener.KeyExpirationEventMessageListener;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * redis配置类
 * @author Administrator
 */
@Configuration
public class RedisConfig {
    @Bean(name = "redisTemplate")
    @Primary
    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        // key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // hash的key也采用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // value序列化方式采用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式采用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }

    @Bean(name = "shiroRedisTemplate")
    public RedisTemplate<String, Object> shiroRedisTemplate(LettuceConnectionFactory factory) {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(factory);
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        // key采用String的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        // hash的key也采用String的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        // value序列化方式采用jackson
        //template.setValueSerializer(jackson2JsonRedisSerializer);
        // hash的value序列化方式采用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();
        return template;
    }


    /**
     * key过期事件订阅需要
     * @param connectionFactory
     * @return
     */
    @Bean
    RedisMessageListenerContainer listenerContainer(RedisConnectionFactory connectionFactory) {
        RedisMessageListenerContainer listenerContainer = new RedisMessageListenerContainer();
        listenerContainer.setConnectionFactory(connectionFactory);
        return listenerContainer;
    }

//    /**
//     * redis监听配置
//     * @param
//     * @return
//     */
//    @Bean
//    KeyExpirationEventMessageListener redisKeyExpirationListener(RedisMessageListenerContainer listenerContainer) {
//        return new RedisKeyExpirationListener(listenerContainer);
//    }

}

package com.hxh.basic.project.listen;

import com.hxh.basic.project.entity.User;
import com.hxh.basic.project.redis.RedisUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
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;

/**
 * @ClassName RedisKeyExpirationListener
 * @Description: TODO
 * @Author ChenYuan
 * @Date 2020/12/21
 * @Version V1.0
 **/
@Slf4j
@Component
public class RedisKeyExpirationListener  extends KeyExpirationEventMessageListener {
    private final String NO_PAY_PRE = "no_pay_pre";

    @Autowired
    private RedisUtil redisUtil;

    public RedisKeyExpirationListener(RedisMessageListenerContainer listenerContainer) {
        super(listenerContainer);
    }


    /**
     * redis key失效，监听
     * @param message
     * @param pattern
     */
    @Override
    public void onMessage(Message message, byte[] pattern) {
        // 业务处理 , 注意message.toString()可以获取失效的key
        String expiredKey = message.toString();
        //处理特定的key
        if(expiredKey.contains(NO_PAY_PRE)){
            log.error(expiredKey);
            System.out.println(expiredKey);
        }
    }
}