spring boot mongodb配置写/读+slaveOk

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

spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.database=mydb

@Document(collection = "users")
public class User {
    @Id
    private String id;
    private String name;
    // 其他属性和方法
}

public interface UserRepository extends MongoRepository<User, String> {
    // 自定义查询方法
}

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

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

    public User getUserById(String id) {
        return userRepository.findById(id).orElse(null);
    }

    // 其他业务方法
}

spring.data.mongodb.uri=mongodb://localhost:27017/mydb?slaveOk=true