用spring项目中的json填充mongodb数据库

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>

@Document(collection = "users")
public class User {
    @Id
    private String id;
    private String name;
    private int age;
    // 其他字段和对应的getter/setter方法
}

public interface UserRepository extends MongoRepository<User, String> {
    // 可以在这里定义一些自定义的查询方法
}

@Configuration
public class MongoConfig {
    @Bean
    public MongoTemplate mongoTemplate(MongoDatabaseFactory mongoDbFactory) {
        return new MongoTemplate(mongoDbFactory);
    }
}

@Autowired
private UserRepository userRepository;

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