Redis反序列化失败问题

redis反序列化类似于List ‘<Person’> 数据结构时，需要知道类型信息，
ObjectMapper.DefaultTyping.EVERYTHING 这句代码是关键点，让redis反序列化时知道List是什么类型

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.json.JsonMapper;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.Cursor;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ScanOptions;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;import java.time.Duration;
import java.util.ArrayList;
import java.util.List;/*** @ClassName RedisConfig* @Description redis配置类* @Date 2024/12/5 9:11*/
@Slf4j
@EnableCaching  // 开启缓存
@Configuration
public class RedisConfig {// 定义一个Bean，名称为"redisTemplate"，返回类型为RedisTemplate<String, Object>@Bean(name = "redisTemplate")public RedisTemplate<String, Object> getRedisTemplate(RedisConnectionFactory factory) {RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();redisTemplate.setConnectionFactory(factory);StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(objectMapper(), Object.class);redisTemplate.setKeySerializer(stringRedisSerializer);redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);redisTemplate.setHashKeySerializer(stringRedisSerializer);redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);redisTemplate.afterPropertiesSet();return redisTemplate;}@Bean("cacheManager")public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer =new Jackson2JsonRedisSerializer<>(objectMapper(), Object.class);RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofMinutes(5)).disableCachingNullValues().computePrefixWith(name -> name + ":").serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer())).serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer));return RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(cacheConfiguration).build();}private ObjectMapper objectMapper() {ObjectMapper objectMapper = JsonMapper.builder().addModule(new JavaTimeModule()).build();objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance,ObjectMapper.DefaultTyping.EVERYTHING, JsonTypeInfo.As.PROPERTY);return objectMapper;}@Bean@ConditionalOnProperty(name = "app.cache.clear-on-startup", havingValue = "true")public CommandLineRunner cacheClearRunner(RedisTemplate<String, Object> redisTemplate,@Value("${app.cache.clear-patterns:}") List<String> patterns) {return args -> {for (String pattern : patterns) {safeClearCache(redisTemplate, pattern);}};}private void safeClearCache(RedisTemplate<String, Object> redisTemplate, String pattern) {try {log.info("Clearing cache for pattern: " + pattern);int deleted = 0;Cursor<String> cursor = redisTemplate.scan(ScanOptions.scanOptions().match(pattern).count(100).build());List<String> keysBatch = new ArrayList<>(100);while (cursor.hasNext()) {keysBatch.add(cursor.next());if (keysBatch.size() >= 100) {redisTemplate.delete(keysBatch);deleted += keysBatch.size();keysBatch.clear();}}if (!keysBatch.isEmpty()) {redisTemplate.delete(keysBatch);deleted += keysBatch.size();}log.info("Cleared {} keys for pattern: {}", deleted, pattern);} catch (Exception e) {log.error("Cache clear error for pattern " + pattern + ": " + e.getMessage());log.error(e.getMessage(), e);}}
}