Spring JPA存储库无法解析实体的属性
我正在尝试对一个表的两列进行简单搜索 我的客户实体类snipet:Spring JPA存储库无法解析实体的属性,spring,hibernate,spring-data-jpa,repository,Spring,Hibernate,Spring Data Jpa,Repository,我正在尝试对一个表的两列进行简单搜索 我的客户实体类snipet: @Entity @Table(name = "CUSTOMER") public class Customer { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "CUSTOMER_ID", nullable = false) private int custo
@Entity
@Table(name = "CUSTOMER")
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "CUSTOMER_ID", nullable = false)
private int customer_id;
@Column(name = "FIRST_NAME", nullable = false)
private String first_name;
@Column(name = "LAST_NAME", nullable = false)
private String last_name;
@Column(name = "PHONE_NUMBER", nullable = false)
private String phone_number;
@Column(name = "EMAIL")
private String email;
@Repository
public interface CustomerRepository extends JpaRepository<Customer, Integer> {
List<Customer> findAllByFirst_nameAndLast_name(String firstName, String lastname);
}
我的客户存储类snipet:
@Entity
@Table(name = "CUSTOMER")
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "CUSTOMER_ID", nullable = false)
private int customer_id;
@Column(name = "FIRST_NAME", nullable = false)
private String first_name;
@Column(name = "LAST_NAME", nullable = false)
private String last_name;
@Column(name = "PHONE_NUMBER", nullable = false)
private String phone_number;
@Column(name = "EMAIL")
private String email;
@Repository
public interface CustomerRepository extends JpaRepository<Customer, Integer> {
List<Customer> findAllByFirst_nameAndLast_name(String firstName, String lastname);
}
因此,它无法检测customer对象中的字段,我是否应该以某种方式将customer类导入到存储库中?我建议按照标准将属性保存在camel案例中 因为我们将下划线字符视为保留字符,所以强烈建议遵循标准Java命名约定(即,不要在属性名称中使用下划线,而是使用驼峰大小写) 然后查询以及根据
列出findallbyfirstname和lastname(字符串firstName,字符串lastname);
问题在于您的snake\u案例命名约定,建议使用camelCase命名约定
正如春季文档所说:
因为我们将下划线字符视为保留字符,所以
强烈建议遵循标准Java命名约定(即,
在属性名称中不使用下划线,而是使用大小写)
您可以看到一个相关的JIRA问题——属性名中不支持下划线。Spring JPA的整个要点是使用存储库中定义的方法简化查询构建。约定是在实体中使用camelCase命名字段,在编写查询方法时使用camelCase命名字段。只要将实体字段的命名从snake-case改为camel-case,就可以了
List<Customer> findAllByFirstNameAndLastName(String firstName, String lastname);