spring-data-jpa - 如何在@Query 中使用枚举作为常量

Question

我试图在 != 之后放置一个完整的类路径(com.xxxx.State.Finish)但没有帮助。

@Query("select c from CustomOrder c where c.dealer = :roleName and 
     c.nextManager = null and c.currentState != Finish")
List<CustomOrder> findOpenOrder(@Param("roleName") String roleName);

实体:

@Getter
@Enumerated(EnumType.STRING)
CustomOrderEnums.State currentState;

枚举:

public enum State {
    Open, Finish
}

Answer 1

@Query("select c from CustomOrder c where c.dealer = :roleName and 
     c.nextManager = null and c.currentState != com.xxx.FooEnum.Finish")

FooEnum必须是一流的而不是内部的。如果必须是内部类，请使用 '带引号的字符串(没有没有尝试过 ' )。

@Query("select c from CustomOrder c where c.dealer = :roleName and 
     c.nextManager = null and c.currentState != 'Finish'")

我刚刚发现，而不是使用 @Query它可以简单地用作:

List<User> findIdByRoleRoleAndProvinceType(String role, ProvinceEnum.ProvinceType provinceType);

这是实体用户:

@Entity
public class User {
    Role role; // entity has a String field role;
    Province province; // entity has a ProvinceEnum.ProvinceType field type.
...
}