Java使用RedisTemplate操作Redis遇到的坑

@AutoWired
private RedisTemplate redisTemplate;

package com.example.demo.config;
 
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Component;
 
@Data
@Component
@Configuration
@Slf4j
public class RedisConfig {
 
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
 
//        // 使用Jackson2JsonRedisSerialize 替换默认序列化
//        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
//
//        ObjectMapper objectMapper = new ObjectMapper();
//        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
//        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
//
//        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
 
        GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
 
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
 
        // 设置value的序列化规则和 key的序列化规则
        redisTemplate.setKeySerializer(stringRedisSerializer);
        redisTemplate.setValueSerializer(genericJackson2JsonRedisSerializer);
 
        redisTemplate.setHashKeySerializer(stringRedisSerializer);
        redisTemplate.setHashValueSerializer(genericJackson2JsonRedisSerializer);
 
        redisTemplate.setDefaultSerializer(genericJackson2JsonRedisSerializer);
        redisTemplate.setEnableDefaultSerializer(true);
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
 
}

redisTemplate.opsForValue().set("test1", "123");
redisTemplate.opsForValue().set("test2", ayUser);

//stringRedisTemplate.opsForValue().set("test3", "{\"name\":\"jack\"}");
//value设置成{\"name\":\"jack\"}这样的json也没用，需要带上序列化的类，像下面这样
stringRedisTemplate.opsForValue().set("test3", "{\"@class\":\"com.example.demo.model.AyUser\",\"id\":null,\"name\":\"shenzhen\",\"password\":null}");
 

System.out.println((String) redisTemplate.opsForValue().get("test1"));//123
System.out.println(stringRedisTemplate.opsForValue().get("test1"));//"123"
System.out.println((AyUser) redisTemplate.opsForValue().get("test2"));//AyUser(id=null, name=shenzhen, password=null)
System.out.println(redisTemplate.opsForValue().get("test3"));//AyUser(id=null, name=shenzhen, password=null)
System.out.println(stringRedisTemplate.opsForValue().get("test3"));//{"@class":"com.example.demo.model.AyUser","id":null,"name":"shenzhen","password":null}

AyUser ayUser_3_0 = JSON.parseObject(stringRedisTemplate.opsForValue().get("test3_0"), AyUser.class);

AyUser ayUser_2 = (AyUser) redisTemplate.opsForValue().get("test2");//ayUser_2.getName()
AyUser ayUser_3 = (AyUser) redisTemplate.opsForValue().get("test3");//ayUser_3.getName()