hibernate

问题 I am using Spring Boot 2.X with Hibernate 5 to connect two different MySQL databases (Bar and Foo) on different servers . I am trying to list all the information of an entity (own attributes and @OneToMany and @ManyToOne relations) from a method in a REST Controller. I have followed several tutorials to do this, thus, I am able to get all the information for my @Primary database (Foo), however, I always get an exception for my secondary database (Bar) when retrieving the @OneToMany sets. If I

问题 I am using Spring Boot 2.X with Hibernate 5 to connect two different MySQL databases (Bar and Foo) on different servers . I am trying to list all the information of an entity (own attributes and @OneToMany and @ManyToOne relations) from a method in a REST Controller. I have followed several tutorials to do this, thus, I am able to get all the information for my @Primary database (Foo), however, I always get an exception for my secondary database (Bar) when retrieving the @OneToMany sets. If I

问题 I have a spring mvc project with spring data, jpa and hibernate. I have a multilanguage database. I designed my database and entity. I am looking for a best practice to query my tables by language. Do I have to write custom jpa query, or is there a generic way to query my tables. If I have a mistake on db or entity design, please warn me. Database: CREATE TABLE translation ( id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY (id)); CREATE TABLE translation_text ( translation_id BIGINT

问题 I have a spring mvc project with spring data, jpa and hibernate. I have a multilanguage database. I designed my database and entity. I am looking for a best practice to query my tables by language. Do I have to write custom jpa query, or is there a generic way to query my tables. If I have a mistake on db or entity design, please warn me. Database: CREATE TABLE translation ( id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY (id)); CREATE TABLE translation_text ( translation_id BIGINT

问题 I have a spring mvc project with spring data, jpa and hibernate. I have a multilanguage database. I designed my database and entity. I am looking for a best practice to query my tables by language. Do I have to write custom jpa query, or is there a generic way to query my tables. If I have a mistake on db or entity design, please warn me. Database: CREATE TABLE translation ( id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY (id)); CREATE TABLE translation_text ( translation_id BIGINT

问题 I have an application using Spring with Hibernate on a MySQL database. For some reason, as of the last few days, anytime I try to persist any objects to my database I am getting the following error: java.sql.SQLException: Connection is read-only. Queries leading to data modification are not allowed. * I can't for the life of me figure out why this is happening. My application was working fine a few days ago. I am configuring a SessionFactory object in my applicationContext.xml file like this:

问题 I have an application using Spring with Hibernate on a MySQL database. For some reason, as of the last few days, anytime I try to persist any objects to my database I am getting the following error: java.sql.SQLException: Connection is read-only. Queries leading to data modification are not allowed. * I can't for the life of me figure out why this is happening. My application was working fine a few days ago. I am configuring a SessionFactory object in my applicationContext.xml file like this:

问题 Hibernate 4.x and 3.x has method Configuration#validateSchema that allows to verify that current database schema matches the object model. However the method is missing in version 5. How the database schema can be validated in Hibernate 5? 回答1: The functionality was extracted and is accessible through interface SchemaValidator. 来源： https://stackoverflow.com/questions/42013850/validate-database-schema-in-hibernate-5

问题 I'm attempting to build a JSF/Hibernate application using Java 7 and Tomcat 7. I have installed the Java SDK and the JavaEE SDK, and copied the javaee.jar and javaee-api-6.jar into my Tomcat LIB folder. By my understanding of this post and this post I should have all of the jars I need, and to the best of my knowledge I have no other jars in this folder that have conflicting resources. The javaee.jar file contains what looks like a Maven pom file, and nothing else. I'm not sure what its value

问题 I'm attempting to build a JSF/Hibernate application using Java 7 and Tomcat 7. I have installed the Java SDK and the JavaEE SDK, and copied the javaee.jar and javaee-api-6.jar into my Tomcat LIB folder. By my understanding of this post and this post I should have all of the jars I need, and to the best of my knowledge I have no other jars in this folder that have conflicting resources. The javaee.jar file contains what looks like a Maven pom file, and nothing else. I'm not sure what its value