RedisConfig通用配置（解决存储乱码）

RedisConfig通用配置（解决存储乱码）

1.项目直接使用

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * @version v1.0
 * @description:
 * @author: 47 on 2020/4/3 13:45
 */
@Configuration
//@EnableCaching
public class RedisConfig {

    /**
     * 配置RedisTemplate
     * @param factory
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory){
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(factory);
        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        //反序列化时候遇到不匹配的属性并不抛出异常
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        //序列化时候遇到空对象不抛出异常
        objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        //反序列化的时候如果是无效子类型,不抛出异常
        objectMapper.configure(DeserializationFeature.FAIL_ON_INVALID_SUBTYPE, false);
        //不使用默认的dateTime进行序列化,
        objectMapper.configure(SerializationFeature.WRITE_DATE_KEYS_AS_TIMESTAMPS, false);
        //使用JSR310提供的序列化类,里面包含了大量的JDK8时间序列化类
        objectMapper.registerModule(new JavaTimeModule());
        //启用反序列化所需的类型信息,在属性中添加@class
        objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        RedisSerializer<?> stringSerializer = new StringRedisSerializer();
        //key序列化
        redisTemplate.setKeySerializer(stringSerializer);
        //value序列化
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        //Hash key序列化
        redisTemplate.setHashKeySerializer(stringSerializer);
        // Hashvalue序列化
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

    /**
     * 使用spring的CacheManager
     * @param factory
     * @return
     */
//    @Bean
//    public CacheManager cacheManager(RedisConnectionFactory factory) {
//        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
//        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
//
//        //解决查询缓存转换异常的问题
//        ObjectMapper om = new ObjectMapper();
//        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
//        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
//        jackson2JsonRedisSerializer.setObjectMapper(om);
//
//        // 配置序列化（解决乱码的问题）
//        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig()
//                .entryTtl(Duration.ofMinutes(10))
//                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
//                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer))
//                .disableCachingNullValues();
//
//        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
//                .cacheDefaults(config)
//                .build();
//        return cacheManager;
//    }
}

2.pom文件中引入的依赖是

<dependency>
		    <groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter-redis</artifactId>
		    <version>1.4.7.RELEASE</version>
</dependency> 

配置类：

@Configuration
public class RedisConfig {

    @Autowired
    private RedisTemplate redisTemplate;

    @Bean
    public RedisTemplate<String, Object> stringSerializerRedisTemplate() {
        RedisSerializer<String> stringSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringSerializer);
        redisTemplate.setValueSerializer(stringSerializer);
        redisTemplate.setHashKeySerializer(stringSerializer);
        redisTemplate.setHashValueSerializer(stringSerializer);
        return redisTemplate;
    }
}