Springboot+spring-data系列之（一）mongodb整合示例

1、项目结构

使用ideaj快速生成springboot项目，结构如下

2、pom.xml依赖

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.1.3.RELEASE
         
    
    com.leao.springdata
    mongodb
    0.0.1-SNAPSHOT
    mongodb
    Demo project for Spring Boot

    
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter-data-mongodb
        
        
            org.springframework.boot
            spring-boot-starter-webflux
        

        
            org.projectlombok
            lombok
            true
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            io.projectreactor
            reactor-test
            test
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

2、application.xml

#通常是自己建立的database
spring.data.mongodb.database=springdata
spring.data.mongodb.host=192.168.127.128
spring.data.mongodb.password=admin
spring.data.mongodb.username=admin
spring.data.mongodb.port=27017
#认证的用户
spring.data.mongodb.authentication-database=admin

3、编写保存实体Order

@Data
@Document(collection = "order")
public class Order {
    @Id
    private String id;
    private String orderId;
    private String content;
    private Date date;

}

4、两种不同形式的使用方式 OrderDao (一种用Repository，一种tempalate)

@Repository
public interface OrderDao extends PagingAndSortingRepository {
}

@Repository
public class OrderDao2 {

    @Autowired
    private MongoTemplate mongoTemplate;

    /**
     * 创建对象
     */
    public void saveorder(Order order) {
        mongoTemplate.save(order);
    }


    /**
     * 根据用户名查询对象
     * @return
     */
    public Order findTestByName(String name) {
        Query query=new Query(Criteria.where("name").is(name));
        Order order =  mongoTemplate.findOne(query , Order.class);
        return order;
    }

    /**
     * 更新对象
     */
    public void updateTest(Order order) {
        Query query=new Query(Criteria.where("id").is(order.getId()));
        Update update= new Update().set("content", order.getContent()).set("date", order.getDate());
        //更新查询返回结果集的第一条
        mongoTemplate.updateFirst(query,update,Order.class);
        //更新查询返回结果集的所有
        // mongoTemplate.updateMulti(query,update,TestEntity.class);
    }

    /**
     * 删除对象
     * @param id
     */
    public void deleteTestById(Integer id) {
        Query query=new Query(Criteria.where("id").is(id));
        mongoTemplate.remove(query,Order.class);
    }

    public void findAll() {
        List all = mongoTemplate.findAll(Order.class,"order");
        System.out.println(all);
    }

 5、service编写

@Service
public class OrderServiceImpl {

    @Autowired
    private OrderDao orderDao;
    @Autowired
    private OrderDao2 orderDao2;


    /**
     Repository方式
    */
    public void save(Order order){
        orderDao.save(order);
        System.out.println("保存成功");
    }

    public void findAll(Pageable pageable){
        Page orders = orderDao.findAll(pageable);
        System.out.println(orders.getTotalElements());
        Stream orderStream = orders.get();
        orders.get().forEach(x-> System.out.println(x.getContent()));
    }

    /**
     * template方式
     */
    public void save2(Order order){
        orderDao2.saveorder(order);
        System.out.println("保存成功");
    }

    public void findAll2(){
        orderDao2.findAll();
    }

6、springboot测试类单元测试

@RunWith(SpringRunner.class)
@SpringBootTest
public class MongodbApplicationTests {


    @Test
    public void contextLoads() {
        test2();
        test3();
    }




    @Autowired
    private OrderServiceImpl orderService;
    private void test1(){
        orderService.findAll(PageRequest.of(0,10, Sort.by("id")));
    }

    private void test2() {
        Order order = new Order();
        order.setContent("springdata");order.setDate(new Date());
//        order.setId("123456");
        order.setOrderId(UUID.randomUUID().toString());
        orderService.save(order);
    }

    private void test3(){
        orderService.findAll2();
    }

}

最后，使用Nosqlbooster查看结果

 

相关代码已经上传至:https://github.com/anshitou/springboot-springdata-compose/tree/master