Ashish prajapati

Posted on Jul 16

🚀 Spring Boot Journey – Day 5: Building a Complete Product Management UI with CRUD Operations

#tutorial #java #springboot #productivity

Welcome to Day 5 of my Spring Boot learning journey! 💚

After creating my first user interface with Thymeleaf and Tailwind CSS, today's goal was to make the application fully interactive.

Instead of just displaying products, I implemented a complete Product Management System where users can create, update, delete, search, and even upload product images—all through a clean web interface.

This felt like my first real-world CRUD application.

🎯 What I Built Today

Today's application supports complete CRUD (Create, Read, Update, Delete) operations directly from the browser.

Users can now:

✅ View all products

✅ Add a new product

✅ Update existing products

✅ Delete products

✅ Filter products by category

✅ Upload product images

Everything happens through the UI without needing Postman.

📝 Product Registration Form

One of the biggest additions today was creating a product registration form.

Instead of sending JSON requests manually, users can now enter product details through a web form.

Spring Boot automatically maps the form fields to the Product object using:

@ModelAttribute

This makes form handling simple and eliminates the need for manually extracting request parameters.

🖼️ Image Upload

Today's most exciting feature was adding image upload support.

Using MultipartFile, users can now upload a product image while creating a new product.

The application:

Receives the uploaded image
Creates an uploads directory if it doesn't exist
Generates a unique filename
Saves the image locally
Stores the image path in the database

This was my first experience handling file uploads in Spring Boot, and it made the application feel much more like a real e-commerce system.

✏️ Updating Products

I also implemented the Update functionality.

When the user clicks the Edit button:

The selected product is loaded.
Existing data is displayed in a form.
Users can modify the details.
The updated information is saved back to the database.

This taught me how to pre-fill forms with existing data and update records efficiently.

❌ Delete Functionality

Deleting products became much easier today.

Users can simply click the Delete button, and Spring Boot removes the selected product from the database.

Simple, fast, and user-friendly.

🔍 Category-Based Search

To improve the application further, I added category filtering.

Now users can browse products based on their category instead of scrolling through the entire list.

This feature demonstrates how backend filtering can provide a much better user experience.

🎨 Improving the UI

The project now feels much more complete thanks to Tailwind CSS.

Today's improvements include:

Responsive forms
Styled buttons
Product cards and tables
Better spacing
Hover animations
Cleaner layout
Improved user experience

The application is becoming more polished with every update.

🔄 Complete Application Flow

Browser

⬇️

Thymeleaf Form

⬇️

Controller

⬇️

Service

⬇️

Repository

⬇️

MySQL Database

⬇️

Updated UI

This flow helped me understand how frontend and backend work together in a Spring Boot MVC application.

📚 What I Learned Today

✅ Spring MVC Form Handling

✅ @ModelAttribute

✅ MultipartFile

✅ File Upload in Spring Boot

✅ Local File Storage

✅ CRUD Operations through UI

✅ Update Forms

✅ Delete Operations

✅ Category-Based Filtering

✅ Redirect After Form Submission

✅ Dynamic Thymeleaf Pages

💡 My Biggest Takeaway

Today's session was one of the most rewarding so far.

My application has evolved from a simple REST API into a functional web application where users can interact with data through an intuitive interface.

Adding image uploads, CRUD operations, and search functionality made the project feel much closer to a production-ready product.

Every new feature is helping me understand how full-stack applications are built using Spring Boot.

🚀 What's Next?

In the next phase of my journey, I plan to explore:

User Authentication & Login
Spring Security
Pagination & Sorting
Validation
Exception Handling for UI
Dashboard & Analytics
Deploying the Application

The journey continues—one feature at a time. 💚