JSP stands for JavaServer Pages. JSP is java server side technology to create dynamic web pages. JSP is extension of Servlet technology to help developers create dynamic pages with HTML like syntax.
We can create user views in servlet also but the code will become very ugly and error prone. Also most of the elements in web page is static, so JSP page is more suitable for web pages. We should avoid business logic in JSP pages and try to use it only for view purpose. JSP scripting elements can be used for writing java code in JSP pages but it’s best to avoid them and use JSP action elements, JSTL tags or custom tags to achieve the same functionalities.
One more benefit of JSP is that most of the containers support hot deployment of JSP pages. Just make the required changes in the JSP page and replace the old page with the updated jsp page in deployment directory and container will load the new JSP page. We don’t need to compile our project code or restart server whereas if we make change in servlet code, we need to build the complete project again and deploy it. Although most of the containers now provide hot deployment support for applications but still it’s more work that JSP pages.
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