Cannot construct instance of `org.springframework.security.core.authority.SimpleGrantedAuthority`

错误描述
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of org.springframework.security.core.GrantedAuthority (no Creators, like default constructor, exist): abstract types either need to be mapped to concrete types, have custom deserializer, or contain additional type information

方法一

• 通过编写一个自定义的反序列化器解决此问题

class SimpleGrantedAuthorityDeserializer extends StdDeserializer {
    public SimpleGrantedAuthorityDeserializer() {
        super(SimpleGrantedAuthority.class);
    }
    @Override
    public SimpleGrantedAuthority deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
        JsonNode tree = p.getCodec().readTree(p);
        return new SimpleGrantedAuthority(tree.get("authority").textValue());
    }
}

然后在redis的反序列化使用Jackson2JsonRedisSerializer反序列化，在里面配置ObjectMapper

配置中加上

@Slf4j
@Configuration
@EnableCaching
@ConditionalOnClass(RedisOperations.class)
@EnableConfigurationProperties(RedisProperties.class)
public class RedisConfig extends CachingConfigurerSupport{


    @SuppressWarnings("all")
    @Bean(name = "redisTemplate")
    @ConditionalOnMissingBean(name = "redisTemplate")
    public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisSerializer