如何使用spring data cassandra & elasticsearch配置

<!-- Spring Data Cassandra -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency>

<!-- Spring Data Elasticsearch -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>

spring.data.cassandra.contact-points=localhost
spring.data.cassandra.port=9042
spring.data.cassandra.keyspace-name=mykeyspace

spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.data.elasticsearch.cluster-name=mycluster

@Table("users")
public class User {
    @PrimaryKey
    private UUID id;

    @Column("name")
    private String name;

    // Getters and setters
}

@Repository
public interface UserRepository extends CassandraRepository<User, UUID>, ElasticsearchRepository<User, UUID> {
    // Custom query methods
}

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;

    public User saveUser(User user) {
        return userRepository.save(user);
    }

    public User getUser(UUID id) {
        return userRepository.findById(id).orElse(null);
    }

    // Other methods
}