spring boot整合mongodb

• **更新pom.xml，在pom.xml中加入

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

• ** 配置連線資訊
  在application.yml中加入如下資訊：

  –不含使用者名稱和密碼(mongo預設)

Spring：
  data:
    mongodb:
      uri: mongodb://localhost:27017
 
/mongo_bi

–包含使用者名稱和密碼

Spring：
  data:
    mongodb:
      uri:// mongodb:username:[email protected]:27017/mongo_bi

• ** 編寫對應的實體類

@Document(collection = "customer")
public class CustomerMongo {



    @Id
    private ObjectId id;

    private String name;

    private Integer age;


    @Override
 

    public String toString() {
        return "CustomerMongo{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", age=" + age +
                '}';
    }

    public ObjectId getId() {
        return id;
    }

    public void setId(ObjectId id) {
        this
 
.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

這裡的id型別需要注意一下：是org.bson.types.ObjectId型別的！

• **再來寫一個mongoRespository

public interface CustomerRepository extends MongoRepository<CustomerMongo,Long>{
    /**
     * 通過name查詢資訊
     * @param name
     * @return
     */
    List<CustomerMongo> findAllByName(String name);

    List<CustomerMongo> findAllByNameAndAge(String name,Integer age);
}

這裡的許多方法都是寫好了的，用 就可以了！

測試

@SpringBootTest
@RunWith(SpringRunner.class)
public class MongoTest {
    private static final Logger logger = LoggerFactory.getLogger(MongoTest.class);

    @Autowired
    CustomerRepository customerRepository;

    @Autowired
    MongoTemplate mongoTemplate;

    @Test
    public void getData() {
        List<CustomerMongo> customerMongo = customerRepository.findAllByNameAndAge("wangwei",18);
        logger.info(customerMongo.toString());


        /*Query query = new Query(Criteria.where("name").is("wangwei"));
        CustomerMongo customerMongo = mongoTemplate.findOne(query, CustomerMongo.class);
        logger.info(customerMongo.toString());*/
    }
}

註釋掉的程式碼是用mongoTemplate寫的，效果是一樣的。