How to Configure Hibernate with PostgreSQL for JSONB Type and Handle Serialization Issues?
Could someone explain I'm having trouble with I'm relatively new to this, so bear with me... I'm currently working on a Spring Boot application where I need to store data in a PostgreSQL database using the JSONB data type. However, I'm running into issues when trying to save and retrieve objects mapped to this type using Hibernate. My entity looks something like this: ```java @Entity public class User { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @Column(columnDefinition = "jsonb") private String settings; // Getters and Setters } ``` When I try to save a `User` object with JSON settings, I get the following behavior: ``` Hibernate: insert into user (settings) values (?) org.hibernate.exception.GenericJDBCException: could not execute statement Caused by: org.postgresql.util.PSQLException: behavior: insert or update on table "user" violates foreign key constraint ``` I’ve checked the database schema, and the structure of the `settings` column is set to `jsonb`, so I believe the Hibernate mapping should work. I also double-checked to make sure my PostgreSQL version is compatible with JSONB. Additionally, I’ve tried using a `Map<String, Object>` type for the `settings` field instead of a `String`, but then I face serialization issues during retrieval: ``` Exception in thread "main" com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of java.util.LinkedHashMap: no default constructor ``` To troubleshoot, I attempted to include a custom serializer and deserializer for the `Map`, but that didn’t seem to resolve the scenario either. What’s the best way to handle JSONB types with Hibernate in a Spring Boot application? Is there a specific configuration or annotation I might be missing that ensures proper serialization and deserialization with PostgreSQL? Any help or guidance would be greatly appreciated! Is there a better approach? Thanks in advance! I'm working on a desktop app that needs to handle this.