Best Practices for Writing Efficient JSP Code

The following article presents Best Practices for Writing Efficient JSP Code.

The following list shows some best practices for writing efficient JSP (JavaServer Pages) code.

List of Best Practices for Writing Efficient JSP Code

• Minimize scriptlets. Avoid using scriptlets (<% %>), which embed Java code directly into your JSP page. Instead, use JSTL (JSP Standard Tag Library) and custom tags to keep your code modular and reusable.
• Use JSTL. Basically, JSTL provides a set of tags for common tasks such as iteration, conditional processing, and formatting. Use JSTL tags instead of scriptlets whenever possible.
• Use EL (Expression Language). Likewise, EL is a simplified way to access objects and properties in your JSP page. Use EL expressions (${ }) to access objects and properties, instead of using scriptlets.
• Keep JSP pages simple. Moreover, you need to keep your JSP pages simple and focused on presenting data to the user. So, move business logic and data processing to servlets or other Java classes.
• Use MVC architecture. Similarly, use the model-view-controller (MVC) architecture to separate your business logic from your presentation logic. Also, you can use servlets as controllers to handle user input and control flow, and use JSP pages as views to display data to the user.
• Use caching. Furthermore, use caching mechanisms such as JSP tag pooling and page caching to improve performance and reduce server load.
• Optimize database access. Optimize database access by using connection pooling, minimizing the number of database queries, and using prepared statements.
• Avoid unnecessary session use. Similarly, use sessions sparingly and only when necessary. Session data can take up valuable server memory, so avoid storing large amounts of data in session variables.
• Use JSP directives. Likewise, use JSP directives (<%@ %>), such as page, include, and taglib, to define page-level attributes and dependencies.
• Test and profile your code. Finally, test and profile your JSP pages to identify performance bottlenecks and optimize your code accordingly.

In this way, you can write efficient and maintainable JSP code that delivers a great user experience.

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