public class Person {
  String firstname;
  String lastname;

  // …
}

public class HashMapping {

  @Resource(name = "redisTemplate")
  HashOperations<String, byte[], byte[]> hashOperations;

  HashMapper<Object, byte[], byte[]> mapper = new ObjectHashMapper();

  public void writeHash(String key, Person person) {

    Map<byte[], byte[]> mappedHash = mapper.toHash(person);
    hashOperations.putAll(key, mappedHash);
  }

  public Person loadHash(String key) {

    Map<byte[], byte[]> loadedHash = hashOperations.entries(key);
    return (Person) mapper.fromHash(loadedHash);
  }
}