Spring CRUD Generator v1.3.0 Released 🚀

Source: Dev.to

MariaDB Support + Optional Null Exclusion in REST Responses

I’ve just released Spring CRUD Generator v1.3.0 🎉

Spring CRUD Generator is an open‑source Maven plugin that generates Spring Boot CRUD code from a YAML/JSON project config, including:

• Entities
• Transfer objects (DTOs)
• Mappers
• Services and business services
• Controllers

Optionally it can also generate:

• OpenAPI/Swagger resources
• GraphQL resolvers
• Flyway migrations
• Docker resources

The goal is simple: generate the repetitive CRUD boilerplate fast, keep the structure consistent, and let you focus on business logic.

Database Compatibility

The generator is now fully compatible with MariaDB, in addition to:

• MySQL
• PostgreSQL
• MSSQL

Supporting MariaDB includes updates across the ecosystem:

• Flyway scripts
• Docker Compose setup
• Database compatibility support in both the generator and the generated code

If you’re using MariaDB, you can now use the generator without workarounds.

REST Response Null Exclusion

A new property is available:

rest.response.excludeNull=true

When enabled, generated REST responses will exclude null fields from the JSON output. This provides:

• Cleaner API responses
• Smaller payloads
• More controlled serialization behavior

Compatible with:

• Spring Boot 3
• Spring Boot 4

Additional Context

• MariaDB support was a natural next step after MySQL, PostgreSQL, and MSSQL compatibility.
• Many APIs prefer not returning null fields, so a generator‑level switch makes sense.

This release focuses on making the generated projects more practical for real‑world setups.

Resources

• Repository:
• Release (v1.3.0):
• Demo project:

Feedback

Feedback is welcome 🙌. If you try it, I’d appreciate comments on:

• MariaDB compatibility
• Flyway script behavior
• rest.response.excludeNull behavior in generated APIs

I’m also happy to discuss implementation details and trade‑offs behind the generator.