Writing a Thymeleaf component library - part 3

Part 3 of a series on building a Thymeleaf component library adds slot support, enabling arbitrary content injection into components. The implementation introduces a SlotContentSplitter helper class that walks a component element's body once, separating default slot content from named slots. A new SlotElementProcessor replaces <tcl:slot> elements in component templates with the corresponding provided or default content. The post demonstrates both default and named slots (e.g., header/footer in a card component), shows how to use slots in a button component with SVG icons, and registers the new processor in TclDialect. The author acknowledges Claude AI assisted with the complex splitter logic.

Source: https://www.wimdeblauwe.com/blog/2026/08/10/writing-a-thymeleaf-component-library---part-3. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.