What is JavaServer Pages in SAP (BC-JAS - Java Application Server)?

SAP Term: JavaServer Pages

• Component: BC-JAS

• Component Name: Java Application Server

• Description: JavaServer Pages are an extension of the Java Servlet technology that provides a simple programming vehicle for displaying dynamic content on a Web page. Created by Sun, JSP technology provides HTML pages with embedded Java source code that is executed in the Web server or application server. The HTML provides the page layout that will be returned to the Web browser, the Java provides the processing/scripting. Examples are a query to the database, and filling blank input fields of the Web page with results. Comparable technologies are ASP by Microsoft and ABSP by SAP. Compared to the technology provided by Web Dynpro, page technology has higher maintenance costs.

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• Key Concepts:
  JavaServer Pages (JSP) is a server-side programming technology used to create dynamic web pages. It is based on the Java programming language and is part of the Java EE platform. JSPs are used to create web applications that can be accessed from any web browser.
  
  How to use it:
  JSPs are written in HTML and Java code. The HTML code is used to create the page layout and the Java code is used to add dynamic content. The JSPs are compiled into Java bytecode and then executed by the Java Application Server (JAS). The output of the JSP is then sent back to the web browser.
  
  Tips & Tricks:
  When writing JSPs, it is important to keep in mind that they are compiled into Java bytecode. This means that any errors in the code will be detected at compile time, rather than at runtime. It is also important to use best practices when writing JSPs, such as using proper indentation and commenting your code.
  
  Related Information:
  The Java EE platform provides a number of other technologies that can be used in conjunction with JSPs, such as servlets, Enterprise JavaBeans (EJB), and JavaServer Faces (JSF). These technologies can be used to create more complex web applications.