JSP · Jakarta Server Pages

Understand the idea

Tomcat translates a JSP into a Servlet and compiles it. HTML markup, Expression Language, and JSTL tags then produce the rendered HTML. Keep business operations in Java classes and use JSP for presentation.

A concrete example

<c:forEach items="${todos}" var="todo">
  <p><c:out value="${todo.title}"/></p>
</c:forEach>

In the application

Manual 00 puts list.jsp and form.jsp under WEB-INF/views and reaches them through TodoServlet forwards.

Opening a JSP from disk does not run it. Visit the controller route on Tomcat.

Related concepts

• Servlet
• JSTL · Jakarta Standard Tag Library
• EL · Expression Language
• Server-side forward
• View / template