通用的redis序列化

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在使用springboot-data-redis的时候, 需要自定义序列化和反序列化. 由于经常使用, 所以写在这里留作备用. 序列化方法是从CSDN博客上面找到的.

都是一些很简单的东西, 所以在这里就只做了代码记录, 没有太多文字性的东西.

引入依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.57</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.8</version>
</dependency>

自定义序列化

/**
 * FastJson2JsonRedisSerializer
 *  Redis使用FastJson序列化
 *  by zhengkai.blog.csdn.net
 *  https://blog.csdn.net/moshowgame/article/details/83246363
 */
public class FastJson2JsonRedisSerializer<T> implements RedisSerializer<T> {

    private ObjectMapper objectMapper = new ObjectMapper();
    private static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    static {
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
        //如果遇到反序列化autoType is not support错误,请添加并修改一下包名到bean文件路径
        // ParserConfig.getGlobalInstance().addAccept("com.xxxxx.xxx");
    }

    public FastJson2JsonRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0) {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);

        return JSON.parseObject(str, clazz);
    }
    public void setObjectMapper(ObjectMapper objectMapper) {
        Assert.notNull(objectMapper, "'objectMapper' must not be null");
        this.objectMapper = objectMapper;
    }

    protected JavaType getJavaType(Class<?> clazz) {
        return TypeFactory.defaultInstance().constructType(clazz);
    }

}

设置到redis中

@Configuration
@EnableCaching
public class RedisConfig {

    @Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate template = new RedisTemplate();
        template.setConnectionFactory(redisConnectionFactory);

        //使用FastJson2JsonRedisSerializer来序列化和反序列化redis的value值 by zhengkai
        FastJson2JsonRedisSerializer serializer = new FastJson2JsonRedisSerializer(Object.class);

        ObjectMapper mapper = new ObjectMapper();
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(mapper);

        template.setValueSerializer(serializer);
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.afterPropertiesSet();
        return template;
    }
}
  1. redis. oopsxxalue(" key", new gson(). tojson( xxx)) 这样可以啵

  2. @feng 阔以阔以, 但是GSON最好不要一直new