# Thymeleaf templates: How to create reusable UI components for your web app.
Thymeleaf is a popular Java-based template engine that allows developers to create dynamic web pages with reusable UI components. In this blog post, we will explore how to create reusable UI components using Thymeleaf templates.
Summary
Thymeleaf is a powerful template engine that enables developers to create dynamic web pages with reusable UI components. By using Thymeleaf templates, developers can easily create and manage UI components that can be reused across multiple pages and applications. In this blog post, we will explore how to create reusable UI components using Thymeleaf templates and provide sample code to help you get started.
Creating reusable UI components with Thymeleaf templates
Thymeleaf templates allow developers to create reusable UI components that can be used across multiple pages and applications. To create a reusable UI component, you can define a Thymeleaf fragment that contains the HTML markup and Thymeleaf expressions for the component. For example, let's say you want to create a reusable header component for your web app. You can define a Thymeleaf fragment like this:
<header th:fragment="header">
<nav>
<ul>
<li><a th:href="@{/home}">Home</a></li>
<li><a th:href="@{/about}">About</a></li>
<li><a th:href="@{/contact}">Contact</a></li>
</ul>
</nav>
</header>
In this example, we define a Thymeleaf fragment called "header" that contains a navigation menu with links to the home, about, and contact pages. To use this header component in your web app, you can include the fragment in your Thymeleaf templates like this:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>My Web App</title>
</head>
<body>
<header th:replace="fragments/header :: header"></header>
<main>
<!-- Your page content here -->
</main>
</body>
</html>
In this example, we include the "header" fragment in our HTML markup using the "th:replace" attribute. The "::" syntax is used to specify the name of the fragment and the location of the fragment file. By using this syntax, Thymeleaf will replace the "header" element with the contents of the "header" fragment.
Conclusion
Thymeleaf templates provide a powerful way to create reusable UI components for your web app. By defining Thymeleaf fragments, you can easily create and manage UI components that can be reused across multiple pages and applications. We hope this blog post has helped you understand how to create reusable UI components using Thymeleaf templates. If you have any questions or comments, please feel free to leave them below.
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