Question

所以我跟随this tutorial学习Spring，JPA作为REST API并执行CRUD操作。我在PostgreSQL中使用以下模式定义了一个表：

firstname

当我尝试使用以下代码创建新客户时，会创建客户，但不会将lastname和first_name数据插入相应字段，而是将数据插入新列名为last_name和// all imports @RestController public class BaseController { @Autowired CustomerRepository repository; @RequestMapping(value = "/postcustomer", method = RequestMethod.POST) public void postCustomer(@RequestBody Response request) { request.getData().forEach((data) -> { repository.save(data.getCustomer()); }); } }。这种映射是如何进行的？

控制器 - BaseController.java：

// all imports
public class Response implements Serializable {
    private String status;
    private List<Data> data;
    public Response(String status, List<Data> data) {
        this.status = status;
        this.data = data;
    }
    public Response() {
    }
    //all getter setters below
}

JSONMapping - Response.java：

// all imports
public class Data implements Serializable{
    @JsonProperty("Customer")
    private Customer customer;
    public Data() {
    }
    public Data(Customer customer) {
        this.customer = customer;
    }
    // all getter setters
}

JSON映射 - Data.java：

// all imports
@Entity
@Table(name = "customer")
public class Customer implements Serializable {
    private static final long serialVersionUID = -3009157732242241606L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    @JsonProperty("firstname")
    @Column(name = "firstname")
    private String firstName;
    @JsonProperty("lastname")
    @Column(name = "lastname")
    private String lastName;
    protected Customer() {
    }
    public Customer(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }
    // all getter setters
}

模型 - Customer.java：

// all imports
public interface CustomerRepository extends CrudRepository<Customer, Long> {

}

存储库 - CustomerRepository.java：

{
    "status": "Done",
    "data": [ {
        "Customer": {
            "firstname" : "test",
            "lastname" : "123"
        }
    }]
}

正在发送JSON：

Answer 1

这是因为Spring JPA使用自己的默认命名约定。只需将以下行放在application.properties文件

中

spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

模型映射的Spring JPA JSON没有映射到右列

1 个答案: