JsonAutoDetect注解找不到错误

骑猪看日落 2022-05-19 11:51 222阅读 0赞

**RedisConfig类代码：**

package com.neo.SpringBoot.config;
    
    import java.lang.reflect.Method;
    
    import org.springframework.cache.CacheManager;
    import org.springframework.cache.annotation.CachingConfigurerSupport;
    import org.springframework.cache.annotation.EnableCaching;
    import org.springframework.cache.interceptor.KeyGenerator;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.data.redis.cache.RedisCacheManager;
    import org.springframework.data.redis.connection.RedisConnectionFactory;
    import org.springframework.data.redis.core.RedisTemplate;
    import org.springframework.data.redis.core.StringRedisTemplate;
    import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
    
    import com.fasterxml.jackson.annotation.PropertyAccessor;
    import com.fasterxml.jackson.databind.ObjectMapper;
    
    @Configuration
    @EnableCaching
    public class RedisConfig extends CachingConfigurerSupport {
    
        public KeyGenerator keyGenerator() {
            return new KeyGenerator() {
    
                @Override
                public Object generate(Object target, Method method, Object... params) {
                    StringBuilder sb = new StringBuilder();
                    sb.append(target.getClass().getName());
                    sb.append(method.getName());
                    for (Object object : params) {
                        sb.append(object.toString());
                    }
                    return sb.toString();
                }
            };
        }
    
        @SuppressWarnings("rawtypes")
        @Bean
        public CacheManager cacheManager(RedisTemplate redisTemplate) {
            RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
            // 设置缓存的过期时间
            // rcm.setDefaultExpiration(60);//秒
            return rcm;
        }
    
        @Bean
        public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
            StringRedisTemplate template = new StringRedisTemplate(factory);
            Jackson2JsonRedisSerializer<Object> 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);
            template.setValueSerializer(jackson2JsonRedisSerializer);
            template.afterPropertiesSet();
            return template;
        }
    }

**错误提示：**  
![这里写图片描述][20180725095341785]

**pom.xml应引入：**

<dependency>        
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
    </dependency>

**问题解决：**  
![这里写图片描述][20180725095814712]

[20180725095341785]: /images/20220519/61c122d911f540d680580d959a782ba3.png
[20180725095814712]: /images/20220519/2b683757db2a4d38bf43735d2096feb4.png