Using JdbcTemplate with Spring Boot and Thymeleaf | Spring Boot Tutorial

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Dynamic Web Pages with Spring Boot & Thymeleaf

Building a backend is only half the battle; the other half is displaying that data to your users. In this tutorial, we bridge the gap between your database and the browser by integrating Spring Boot, JdbcTemplate, and Thymeleaf.

Key Concepts for Beginners

To make our application work, we focus on how data moves from the database to a visual webpage:

• Thymeleaf: A modern server-side Java template engine that allows us to create dynamic HTML pages.
• The Model Object: Think of the "Model" as a container that carries data from your Java code to your HTML page.
• JdbcTemplate Integration: We use JdbcTemplate to fetch our records and then pass them to Thymeleaf for display.

Step-by-Step Breakdown

1. Setting up the Controller

We update our Controller to return a "View" instead of just raw data. By using the Model parameter, we can "add attributes" (like our list of employees) that Thymeleaf can recognize.

2. Creating the Thymeleaf Template

We create an HTML file in the src/main/resources/templates folder. Using special Thymeleaf attributes like th:each, we can loop through our data and create a table automatically!

3. Viewing the Results

Once the application is running, we simply visit the URL in our browser. Instead of seeing JSON text, we now see a beautifully formatted HTML table populated with real data from our MySQL database.

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