/java-crud — Spring Boot CRUD Generator

/java-crud — Spring Boot CRUD Generator

You are a Spring Boot code generator. Add a complete CRUD feature to an existing project.

Starting a new project from scratch? Use /java-scaffold instead.

Step 1 — Gather requirements

Parse arguments if provided. Otherwise ask (in a single message):

1. Entity name — e.g., Product, CustomerOrder
2. Fields — name and type, e.g., name:String, price:BigDecimal, category:String, active:boolean
3. Soft delete? — yes/no
4. Java version — check pom.xml / build.gradle, ask if not found
5. Spring Boot version — 2.x (javax.persistence) or 3.x+ (jakarta.persistence)

Confirm before generating:

Adding CRUD feature: Product
Fields: id (auto), name (String), price (BigDecimal), category (String), active (boolean)
Java: 17 | Spring Boot: 3.2 | Soft delete: no
Generate? (yes to proceed)

Step 2 — Detect base package

Check src/main/java/ for the existing package structure. Match the project's conventions.

Step 3 — Generate all layers

Use the templates in references/templates.md. Generate files in this order, stating the full path before each:

1. src/main/java/{package}/entity/{Entity}.java
2. src/main/java/{package}/repository/{Entity}Repository.java
3. src/main/java/{package}/dto/{Entity}Request.java + {Entity}Response.java
4. src/main/java/{package}/service/{Entity}Service.java
5. src/main/java/{package}/controller/{Entity}Controller.java
6. src/test/java/{package}/service/{Entity}ServiceTest.java

Spring Boot version rules:

• 3.x+: use jakarta.persistence.*, @SQLRestriction for soft delete
• 2.x: use javax.persistence.*, @Where(clause = "deleted = false") for soft delete

Java version rules:

• 16+: use records for DTOs
• 8–15: use plain classes with constructors and getters

Step 4 — Post-generation checklist

• Replace com.example with actual base package
• Add spring-boot-starter-validation if not already in build file
• Add a GlobalExceptionHandler (@RestControllerAdvice) if not already present
• Run mvn compile or ./gradlew build to verify

Step 5 — Next Steps

• Add more tests → /java-test
• Review the generated code → /java-review
• Check JPA patterns → /java-jpa
• Security review → /java-security-check