problem description The password field is encrypted with @ ColumnTransformer annotation in Springboot + Spring-data-jpa, but the data returned after decryption is null related codes entity class: package top.inger.JpaDemo.domain; import com.f...
Query query2 = em.createNativeQuery("update person o set o.personName = ? where o.id = ?") .setParameter(1, "jiang") .setParameter(2, 151); ...
@Entity @Getter @Setter @ToString @Table(name = "order") public class Order { @Id private Long id; @Column(name = "account_id") private Long accountId; @ManyToOne(fetch = FetchType.EAGER) @JoinColumn(name = &q...
User entity has id,name,age I use @ Query (nativeQuery = true, value = "select id,name from user ") to find only 2 fields tells me that age is missing and that I have to find out all the fields in the entity. If I have 100 fields, I need 100. isn ...
there is a main table that needs to load a child table, and a field in the child table is Lob to hold the picture. now the Lob field has data. When I query the main table data, I will report an exception Unable to access lob stream; nested exception ...
How do associated annotations such as @ OneToMany, @ OneToOne, @ ManyToMany, etc., specify the fields to be queried? for example, the following code @Entity @Table(name = "db_user") public class User{ @Id @GeneratedValue(strategy = ...
problem description In Hibernate @ OneToOne bidirectional association, how does the main table load lazily? related codes @Entity @Table(name = "db_user") public class User{ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) ...
entity 1 inherits another entity 2. Entity 2 is a public entity with id,createDate and other common attributes, so entity 1 does not need to write these fields, but the table cannot be built, and an error is reported: Error starting ApplicationContext....
how does SpringDataJpa call a stored procedure without an OUT parameter through Repository? this is how my stored procedure is defined @Entity @NamedStoredProcedureQuery( name = "Markets.nearById", procedureName = "near...
springboot connection sqlserver the test database is accessible, and the connection address contains an error in SQLEXPRESS, compilation and packaging times. What to do ...
when I integrate jpa with springboot, I have a custom query that does not match the actual execution result of mysql. Custom query is as follows: @Query("select o from MyOrder o where o.phoneNum=?1 and o.ostart>=?2") List<MyOrder> f...
jpa uses findby query. If the parameter is empty, it is not used as a condition. What can I do? this function is similar to where < if test= xx! = null > column = xx < if > of mybatis. for example, I have a findByNameAndAge (String name,Integer...
Hibernate uses proxy mode when implementing lazy loading, but ManyToOne defaults to Fetch.EAGER mode, so I wonder whether Hibernate will continue to use proxy mode without lazy loading, and why. ...
for example, class table (class_id primary key, class_code is unique) class_id,class_code,class_name student table (stu_id primary key, class_code is the class_code of class table) stu_id,stu_code,stu_name,class_code the class_code of the student ...
Code package com.spring.controller; import java.util.List; import org.springframework.data.jpa.repository.Query; import org.springframework.data.repository.CrudRepository; import org.springframework.stereotype.Repository; @Repository public inte...
hibernate automatically generates the sql statement for us. You can see if there is any way to directly return and get the stitched sql? by printing the log. ...
the Jenkins run integration test reported an error and the local test passed. The database script is up to date. Log in to docker to see the latest table . Error Message Could not open JPA EntityManager for transaction; nested exception is org.hibernate...
I have an entity, for address and an entity, for Person, and he has an attribute address_ids; in it, which is an int [] type, which contains an array of address s id. how to map this address_ids field directly to an object of List < Address >. or i...
seniors, use SpringJPA for the first time. Now the entity class has a field that looks like this: private String movie_id; and I want to sort through this field. After inheriting PagingAndSortingRepository, the code is: Sort sort = new Sort(...
Spring boot uses jpa to operate MySQL InnoDB; for example: products; id; quantity; ; id=3211: I see the sql statement on the Internet is: SET AUTOCOMMIT=0; BEGIN WORK; SELECT quantity FROM products WHERE id=3 FOR UPDATE; UPDATE products SET quan...
add OpenSSL module to Apache on linux look at the tutorials on the Internet, upload the ssl file to the modules of Apache, and then run the command ...
when I saw the iterator on the Internet, I found it strange that the interface in C-sharp can inherit the original interface? Link: https: referencesource.micro. public interface IEnumerator<out T> : IDisposable, IEnumerator { ...
The database has two tables for students and classes, and the field classId in the student table is associated with the field id in the class table. in a transaction, I first changed the classId of student2 in the student table to 1, and then went ...
I want to use apache as a reverse proxy, for example: ProxyPass ali app ...
I look at a html ui project with items such as: var apiserver = window[ apiserver ]; url = apiserver + "filterUrlController getUrlData"; I searched the whole project and couldn t find the value of window [ apiserver ]. How do you un...