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  Tutorial: An open alternative to JSP - The faults of JSP So what's wrong with JSP?

How the template-based, open source API FreeMarker trumps JSP

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Placed in the key boundary between data and presentation, JSP endeavors to be both intuitive enough for non-Java programmers and powerful enough for Java programmers to accomplish complex enterprise-level tasks on the server. The advent of JSP 1.1 and custom tag libraries is a welcome amendment to the original JSP design, yet JSP still falls short of its original purpose of separating presentation from data.

The faults of JSP So what's wrong with JSP? It depends on the scope of the project. You cannot argue that one of JSP's strengths lies in integrating an existing codebase with an HTML-based presentation layer that is in need of a few dynamic elements. This integration often involves a Java developer hacking some JSP code into a previously authored HTML page.

In larger projects, time constraints often dictate that the HTML and Java be developed in parallel. Here's where JSP begins to show its faults. First, JSP relies too heavily on Java syntax. HTML coders seldom know Java syntax well enough to author JSP pages entirely by themselves. A typical solution is to have the Java developers "rope off" sections of HTML code with comments, to which they will later add JSP code. This approach leaves the door wide open for a complex form of feature-creep known as "Why doesn't it work the way it did when I originally wrote it?" Let's face it, HTML authors want their code touched about as much as Java programmers do, which is to say not at all. Additionally, it can be difficult to test the validity of the HTML depending upon how much the JSP dynamically generates it.

This could leave the HTML authors sitting around waiting for the JSP to be inserted before they can even test their work.


 

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