Spring MVC: Designing Real-World Web Applications

Spring Expression Language

Expression languages are generally used for simple scripting to manipulate object graphs in a non object-oriented context. For example, if we want to read data or call a method of a Java object from a JSP, XML, or XHTML page, JSP EL and Unified Expression Language (UEL) come to the rescue. These expression languages allow page authors to access external data objects in a simple and easy-to-use way, compatible with tag-based languages such as XML and HTML.

The Spring Expression Language (SpEL), with a language syntax similar to UEL, is a powerful expression language built for querying and manipulating an object graph at runtime. It offers additional features, most notably method invocation and basic string-templating ...