Scripting Elements
Scripting elements let you add small pieces of code to a JSP page,
such as an if statement to generate different HTML
depending on some condition. Like actions, they are executed when the
page is requested. You should use scripting elements with extreme
care; if you embed too much code in your JSP pages you will end up
with an application that’s very hard to maintain. In addition,
simple code syntax errors in scripting elements often lead to error
messages that are much harder to interpret than error messages for
syntax errors in action elements.
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