hibernate

问题 I have an application deployed on WebLogic 12c (12.2.1.4) using Hibernate 5.2.18. Weblogic 12c doc references JPA 2.1 compatibility and Hibernate 5.3+ requires JPA 2.2. Can I prepend the JPA 2.2 API to my startup classpath and use Hibernate 5.3+ or should I stick with Hibernate 5.2 for the time being? 回答1: Yes, this configuration is possible. To avoid conflicts with WebLogic built-in JPA capabilities you should do the following: According to this In a full Java EE environment, consider

问题 I am trying to execute a Native Query from a Spring Boot application, but i am getting this error " org.postgresql.util.PSQLException: ERROR: operator does not exist: integer = bytea " Here are the codes i have written to implement this @SqlResultSetMapping( name = "StudentAssessmentValue", classes = @ConstructorResult( targetClass = StudentAssessmentDTO.class, columns = { @ColumnResult(name = "subject_title", type = String.class), @ColumnResult(name = "assessment", type = String.class), } )

问题 I have an application deployed on WebLogic 12c (12.2.1.4) using Hibernate 5.2.18. Weblogic 12c doc references JPA 2.1 compatibility and Hibernate 5.3+ requires JPA 2.2. Can I prepend the JPA 2.2 API to my startup classpath and use Hibernate 5.3+ or should I stick with Hibernate 5.2 for the time being? 回答1: Yes, this configuration is possible. To avoid conflicts with WebLogic built-in JPA capabilities you should do the following: According to this In a full Java EE environment, consider

问题 I am developing a mall system where a User can have one or more shops. If you create a shop, you have the role ADMIN for that shop, else: you create an account then you are assigned a shop as a MANAGER by the ADMIN of that shop. A user can have a shop that they are an admin , but as well be a manager to a different shop assigned to you by an owner of a that shop. Thus, i have come up with three entities: User, Role and Shop. User Entity @Entity @Table(name = "us_users") public class User {

问题 I am developing a mall system where a User can have one or more shops. If you create a shop, you have the role ADMIN for that shop, else: you create an account then you are assigned a shop as a MANAGER by the ADMIN of that shop. A user can have a shop that they are an admin , but as well be a manager to a different shop assigned to you by an owner of a that shop. Thus, i have come up with three entities: User, Role and Shop. User Entity @Entity @Table(name = "us_users") public class User {

问题 i need help to solve this hibernate bug so every time i put a map annotation in my entity i got this error,It tries to recreate some existing constraints. @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "ID_PAYS") public PrmPays getPrmPays() { return this.prmPays; } public void setPrmPays(PrmPays prmPays) { this.prmPays = prmPays; } And this is the error ! alter table ref_entite add constraint FK4xutpn4uffubj8bfw92mmk30f foreign key (id_pays) references prm_pays Caused by: java.sql

问题 I just discovered that my application behaves differently when I use optimistic locking with a Postgresql or a MariaDB database and I am wondering if somebody can explain what happens and how could I make the application work in the same way with MariaDB? I use Postgresl 10.5 and MariaDB 10.3.10 with InnoDB engine and default settings. I use Spring framework version 5.1.0 and Hibernate 5.3.6. So my code looks like this: @Entity @Getter @Setter @NoArgsConstructor public class Bla { @Id

问题 Run the Jar package the spring boot application with data spring jpa and the mysql connector have different results in the Windows 10 environment and the linuxmint environment. If this application runs on linuxmint it works perfectly, but if it starts in Windows 10 an error like this occurs: ERROR org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa

问题 I am using Spring & Hibernate in my application and I want to set up two different log files - one main log file all the non-sql logging and another file for writing sql queries. This is my log4j.properties file.. But while the sql log file is working as expected..the issue is that the main log file also contains sql queries.. What changes should I make here to to stop writing sql queries to main log file.. #application log properties log4j.appender.rollingFile = org.apache.log4j

问题 I am using Spring & Hibernate in my application and I want to set up two different log files - one main log file all the non-sql logging and another file for writing sql queries. This is my log4j.properties file.. But while the sql log file is working as expected..the issue is that the main log file also contains sql queries.. What changes should I make here to to stop writing sql queries to main log file.. #application log properties log4j.appender.rollingFile = org.apache.log4j