Java中操作Redis

1.Jedis的使用

1.设置依赖

<!--导入jedis的包-->
<dependencies>
    <!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>3.2.0</version>
    </dependency>
    <!--fastjson-->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.2.62</version>
    </dependency>
</dependencies>

2.基本操作

建立连接并测试，注意需要打开redis

执行操作

关闭连接

3.事务的使用

2.Spring Data Redis

1.配置依赖（springboot中）

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

2.自定义redisTemplate序列化

//编写自己的redisTemplate
@Bean
public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory factory) throws UnknownHostException{
    //真实开发一般使用Json来传递对象
    //为了开发方便，一般改为<String,Object>泛型
    RedisTemplate<String, Object> template = new RedisTemplate<String,Object>();
    template.setConnectionFactory(factory);

    //序列化配置jackson
    Jackson2JsonRedisSerializer 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);

    //String的序列化
    StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();

    //key采用String的序列化方式
    template.setKeySerializer(stringRedisSerializer);
    //hash的key采用String的序列化方式
    template.setHashKeySerializer(stringRedisSerializer);
    //value序列化采用jackson
    template.setValueSerializer(jackson2JsonRedisSerializer);
    //hash的value序列化采用Jackson
    template.setHashValueSerializer(jackson2JsonRedisSerializer);
    template.afterPropertiesSet();

    return template;
}