Spring Data Redis Primer Example: Based on Redistemplate (iii)

Using the underlying API: RedisConnection operation of Redis requires manual conversion of data ( String <---->byte ), which requires most repetitive work and is inefficient; org.springframework.data.redis.core.RedisTemplate classes provide a high level of abstraction for interacting with Redis, which is responsible for serialization and connection management, encapsulating most of the repetitive work. And RedisTemplate is a thread-safe class.

In addition, the template provides an operation view for handling specific types or specific keys. The included interfaces are shown in the following table:

Example: The configuration file for the third step in the previous section adds the following:

 <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">     <property name="connectionFactory" ref="jedisConnectionFactory"/></bean>

Test redistemplate:

// RedisTemplate 操作RedisTemplate redisTemplate = context.getBean(RedisTemplate.class);    // 获取String类型的操作类ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();valueOperations.set("haha", "你好");System.out.println(valueOperations.get("haha"));

Optimization:
In the above example, when you need to manipulate a type, you RedisTemplate get a reference to the corresponding action class from the template class, this step is repeated, can be Spring DI injected, you can save a line of code, the code is as follows

@Autowiredprivate RedisTemplate template;@Resource(name = "redisTemplate")private ValueOperations valueOps;

Example description

1. RedisTemplate是一个泛型类，可以指定key和value的类型2. 想操作Redis的哪种类型数据，从RedisTemplate 获取对应操作的引用，如上面的valueOperations 3. 使用RedisTemplate，没有了底层API将数据转byte的操作

Spring Data Redis Primer Example: Based on Redistemplate (iii)