Scriptlets and Scriptlet Expressions

Learn about scriptlet, scriptlet expression, and expression language.

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Scriptlet
Scriptlet expression

A JSP is compiled into a servlet, which means that anything that can be done in a servlet can also be done in a JSP. In PlayerServlet, we wrote Java code, while in welcome.jsp, we wrote HTML. Just as HTML can be written in the PlayerServlet class, Java code can be written in welcome.jsp. Java code in a JSP is called a scriptlet.

A disclaimer before we show how to write a scriptlet: this is not recommended practice and should be avoided.

Scriptlet

In a JSP, anything written between the <% %> tags is a scriptlet. We can print something on the console from welcome.jsp as follows:

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Introduction

Spring Basics

Spring In-depth

Spring Boot

Spring JDBC

Spring Data JPA

Spring REST Fundamentals

Spring REST Advanced Operations and Error Management

Database Relationships in Spring

Spring Aspect Orientated Programming (AOP)

Configuring a Basic Enterprise Web Application

Spring MVC Fundamentals

Spring MVC Advanced Concepts

Unit Testing in Spring

Interview Questions

Epilogue

Scriptlets and Scriptlet Expressions

Scriptlet