Layout and UI

Goal

This snapshot advances Gearcart Market by teaching you to build a shared Tailwind layout and product card shell.

Every numbered folder is a complete app. Run this stage independently, then compare it with the previous folder.

Prerequisites

Use JDK 17+, Maven, and Docker for MySQL stages.

Port 8084 must be free. Copy .env.example before database stages.

• JDK 17+
• Maven
• Docker from part 4 onward

Concepts

One layout owns navigation, flash banners, and the cart badge.

Thymeleaf renders server HTML; Spring Security owns the session; JPA repositories persist catalog and orders.

Walkthrough

Compose the storefront chrome with sample product cards before persistence exists.

Read the example, then open the matching snapshot. The repository includes validation, CSRF, and the surrounding structure.

<div th:replace="~{fragments/product :: card(${p})}"></div>

Run and verify

Enter 03-Layout-And-UI, copy .env.example, start Docker MySQL, and run ./mvnw spring-boot:run on port 8084.

Open http://127.0.0.1:8084. From data lessons onward, Ada and Grace use password123.

git clone https://github.com/michaeldunga1/fcc-spring-ecommerce.git
cd fcc-spring-ecommerce/03-Layout-And-UI
cp .env.example .env
./mvnw spring-boot:run

Troubleshooting

Missing Tailwind classes after edits usually mean assets were not rebuilt.

For database failures, confirm Docker and the gear_NN name. Never commit .env, target/, or secrets.

• Read the first exception first
• Rebuild assets after Tailwind class changes
• Never commit secrets

Try this

Add an empty-state message when the sample product list is empty.

Test a happy path and one invalid or unauthorized request.

• Make one small change
• Test it in the browser
• Compare with the next snapshot only after it works