Thymeleaf

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Thymeleaf
Thymeleaf Logo with name small.png
Developer(s) Daniel Fernández
Stable release 2.1.3 / May 13, 2014 (2014-05-13)
Development status Active
Written in Java
Operating system Cross-platform
Type Template Engine
License Apache License 2.0
Website www.thymeleaf.org
Standard(s) XML, XHTML, HTML5

Thymeleaf is a Java XML/XHTML/HTML5 template engine that can work both in web (Servlet-based) and non-web environments. It is better suited for serving XHTML/HTML5 at the view layer of MVC-based web applications, but it can process any XML file even in offline environments. It provides full Spring Framework integration.

In web applications Thymeleaf aims to be a complete substitute for JSP, and implements the concept of Natural Templates: template files that can be directly open in browsers and that still display correctly as web pages.

Thymeleaf is Open-Source Software, licensed under the Apache License 2.0.

Features[edit]

From the project's website:[1]

  • Java template engine for XML, XHTML and HTML5.
  • Works both in web and non-web (offline) environments. No hard dependency on the Servlet API.
  • Based on modular feature sets called dialects.
    • Dialect features (e.g.: evaluation, iteration, etc.) are applied by linking them to template's tags and/or attributes.
    • Two dialects available out-of-the-box: Standard and SpringStandard (for Spring MVC apps, same syntax as Standard).
    • Developers can extend and create custom dialects.
  • Several template modes:
    • XML: validating against a DTD or not.
    • XHTML 1.0 and 1.1: validating against standard DTDs or not.
    • HTML5: both XML-formed code and legacy-based HTML5. Legacy non-XML code will be automatically cleaned and converted to XML form.
  • Full (and extensible) internationalization support.
  • Configurable, high performance parsed template cache that reduces input/output to the minimum.
  • Automatic DOCTYPE translations –from template DTD to result DTD– for (optional) validation of both template and result code.
  • Extremely extensible: can be used as a template engine framework if needed.
  • Complete documentation including several example applications.

Example[edit]

The following example produces an HTML5 table with rows for each item of a List<Product> variable called allProducts.

<table>
  <thead>
    <tr>
      <th th:text="#{msgs.headers.name}">Name</th>
      <th th:text="#{msgs.headers.price}">Price</th>
    </tr>
  </thead>
  <tbody>
    <tr th:each="prod : ${allProducts}">
      <td th:text="${prod.name}">Oranges</td>
      <td th:text="${#numbers.formatDecimal(prod.price,1,2)}">0.99</td>
    </tr>
  </tbody>
</table>

This piece of code includes:

  • Internationalization expressions: #{ ... }
  • Variable/model-attribute evaluation expressions: ${ ... }
  • Utility functions: #numbers.formatDecimal( ... )

Also, this fragment of (X)HTML code can be perfectly displayed by a browser as a prototype, without being executed at all: it is a natural template.

See also[edit]

References[edit]

External links[edit]