JedisDataException：针对持有错误类型值的键进行的ERR操作

Question

我正在使用Redis的Spring Boot并使用以下配置：

RedisConfig.java

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;

import redis.clients.jedis.JedisPoolConfig;

@Configuration
public class RedisConfig {
@Bean
public RedisConnectionFactory redisConnectionFactory() {
    JedisPoolConfig poolConfig = new JedisPoolConfig();
    poolConfig.setMaxTotal(5);
    poolConfig.setTestOnBorrow(true);
    poolConfig.setTestOnReturn(true);

    JedisConnectionFactory connectionFactory = new JedisConnectionFactory(poolConfig);
    connectionFactory.setUsePool(true);
    connectionFactory.setHostName("localhost");
    connectionFactory.setPort(6379);

    return connectionFactory;
}

@Bean
public RedisTemplate redisTemplate() {
    RedisTemplate redisTemplate = new RedisTemplate();
    redisTemplate.setConnectionFactory(redisConnectionFactory());
    redisTemplate.setEnableTransactionSupport(true);
    return redisTemplate;
}

@Bean
public StringRedisTemplate stringRedisTemplate() {
    StringRedisTemplate stringRedisTemplate = new StringRedisTemplate(redisConnectionFactory());
    stringRedisTemplate.setEnableTransactionSupport(true);
    return stringRedisTemplate;
}

}

RedisRepository.java

public class RedisRepository<T> {

@Resource(name="redisTemplate")
private HashOperations<String, String, T> hashOps;

@SuppressWarnings("unchecked")
public void addObjectInMemory(String key,String hashKey, T t) {
   hashOps.put(key, hashKey, t);        
}

public T getEntity(String key,String hashKey){
    return hashOps.get(key, hashKey);        
}

}

我正在使用以下代码调用put和get方法

 @Autowired
RedisRepository redisRepository;

private static final String ISP_KEY="ISPKEY";
private static final String REG_HIST_KEY="REGHISTKEY";

@Override
public void onApplicationEvent(final ApplicationReadyEvent event) {
    System.out.println("APPLICATION HAS STARTED !!!!!!!!!!!!!!!!!!!!!!!!!!");
    List<SrsFreeIsps> freeIsps=freeIspRepository.findAll();
    for(SrsFreeIsps isp:freeIsps){
        redisRepository.addObjectInMemory(ISP_KEY, isp.getEmailDomain(), 
  isp);
    }

    List<RegistrationHistograms> registrationHistograms= 
 registrationHistogramRepo.findAll();
    for(RegistrationHistograms reg:registrationHistograms){
        redisRepository.addObjectInMemory(REG_HIST_KEY, 
reg.getOrganizationId(), reg);
    }
    //For testing..To be removed
    SrsFreeIsps isp= (SrsFreeIsps) redisRepository.getEntity(ISP_KEY, 
freeIsps.get(0).getEmailDomain());

}

hashOps.get（key，hashKey）它引发以下异常：

JedisDataException: ERR Operation against a key holding the wrong kind of value

hashOps.put（key，hashKey，t）正常工作。

T是我在Redis中坚持存在的实体。