I’m trying to create an app that allows to track the couriers, using Sptring boot. But here I got struggled with some problem. When I try to call get_couriers function, it throws me this exception: java.lang.StackOverflowError: null at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:774) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:178) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serializeContents(CollectionSerializer.java:145) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:107) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.ser.std.CollectionSerializer.serialize(CollectionSerializer.java:25) ~[jackson-databind-2.13.3.jar:2.13.3] at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:728) ~[jackson-databind-2.13.3.jar:2.13.3]… Read More java.lang.StackOverflowError: null at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields

I’m new to spring boot and trying to make my first api. I’ve made a lot of apis on python using FastAPI framework, but now i decided to study this technology. But here, I met a problem. So I’m using the jpa for database communication and I don’t really understand how to update entity’s fields… Read More The best way to update entity in spring boot

I have setup oracle as a database, I’m connected to it and can do CRUD operations using spring boot, however, the data.sql file in the resources folder doesn’t seem to get excuted spring.jpa.database-platform=org.hibernate.dialect.Oracle12cDialect spring.jpa.show-sql=true spring.jpa.properties.hibernate.format_sql=true spring.jpa.hibernate.ddl-auto=none spring.jpa.generate-ddl=false spring.datasource.initialization-mode=always this is my jpa properties, and this is my jpa dependency <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> <exclusions> <exclusion> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jdbc</artifactId>… Read More Spring boot oracle doesn't excute data.sql on startup

I am using Spring Boot 2.7.2 , Java/JDK 18 , PostgreSQL 14. DDL SQL script DROP TABLE IF EXISTS tenant; CREATE TABLE tenant ( id smallint primary key, company_tax_code character varying(14), period character varying(16), — 2021070420220705 created timestamp with time zone ); CREATE OR REPLACE FUNCTION set_id_tenant() RETURNS trigger AS $$ DECLARE BEGIN new.id =… Read More Use Spring Data JPA API: How to get list of Account by tennat_id (belong to a composite primary key)?

According to the Hibernate 5.2 doc, Hibernate Query setHint is deprecated now. Is there an alternative to that now? >Solution : If you scroll to the top of the document, you can see that using org.hibernate.Query is deprecated since 5.2. You can use org.hibernate.query.Query instead. Here‘s the new documentation.

I’m trying to build a repository with product class as entity. There seems to be something wrong with the Id generator. Here’s my product entity Product.java package com.example.repository.model; import org.hibernate.annotations.GenericGenerator; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity public class Product { @Id @GeneratedValue(strategy = GenerationType.AUTO, generator = "system-uuid") @GenericGenerator(name = "system-uuid", strategy =… Read More Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not instantiate id generator