And unlike proprietary server extension mechanisms (such as the Netscape Server API or Apache modules), servlets are server- and platform-independent . ... JSP technology is an extension of the servlet technology created to support authoring of HTML and XML pages.
Is a JSP A servlet?
A JSP is NOT a servlet . However the container like Tomcat use Jasper engine to compile a JSP into a servlet class. The question is formally acceptable but the answer is “not it isn’t”. A jsp or (Java Server Page) is a dinamically generated web page, while a servlet is an implementation of a server feature.
What is JSP vs Java servlet?
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Can we use JSP without servlet?
Its good that you are planning to learn JSP, but JSP is essentially a servlet. so there is no point in using JSP without learning Servlets . Its good that you are planning to learn JSP, but JSP is essentially a servlet. so there is no point in using JSP without learning Servlets.
Is the JSP technology replacing the servlet technology?
Dynamic Java Web Applications
JSP is a server-side technology that allows a developer to create dynamic Java web application. JSP can be thought of as an extension to Servlet technology because it provides features to easily create user views.
Is JSP a front end?
JavaServer Pages (JSP) is a Java standard technology that enables you to write dynamic, data-driven pages for your Java web applications. ... While it is not uncommon to see JSP used as the frontend for older JSF applications, Facelets is the preferred view technology for modern JSF implementations.
Is JSP still used?
JSP is by no means dead. It’s losing its popularity to the alternatives like Velocity, FreeMarker, Webwork, and the JavaScript/AJAX frameworks. If you’re going to develop in Spring you’ll find that JSP is still a popular language used to implement the views .
What is JSP life cycle?
A JSP life cycle is defined as the process from its creation till the destruction . This is similar to a servlet life cycle with an additional step which is required to compile a JSP into servlet.
What is JSP and its advantages?
The advantage of JSP is that the programming language used is JAVA , which is a dynamic language and easily portable to other operating systems. It is very much convenient to modify the regular HTML. ... Performance and scalability of JSP are very good because JSP allows embedding of dynamic elements in HTML pages.
What is servlet life cycle?
A servlet life cycle can be defined as the entire process from its creation till the destruction . ... The servlet is initialized by calling the init() method. The servlet calls service() method to process a client’s request. The servlet is terminated by calling the destroy() method.
What are the disadvantages of JSP?
- It is hard to trace JSP pages error because JSP pages are translated to servlet.
- As JSP output is HTML, it is not rich in features.
- It is very hard to debug or trace errors because JSP pages are first translated into servlets before the compilation process.
- Database connectivity is not easy.
Can we call servlet from JSP?
Invoking a JSP Page from a Servlet. You can invoke a JSP page from a servlet through functionality of the standard javax. servlet. RequestDispatcher interface .
What is servlet and its advantages?
The advantages of Servlet are as follows: Better performance: because it creates a thread for each request, not process . Portability: because it uses Java language. Robust: JVM manages Servlets, so we don’t need to worry about the memory leak, garbage collection, etc. Secure: because it uses java language.
What is the full form of JSP?
Jakarta Server Pages (JSP; formerly JavaServer Pages) is a collection of technologies that helps software developers create dynamically generated web pages based on HTML, XML, SOAP, or other document types. Released in 1999 by Sun Microsystems, JSP is similar to PHP and ASP, but uses the Java programming language.
How does JSP and servlet work together?
The JSP engine compiles the servlet into an executable class and forwards the original request to a servlet engine . A part of the web server called the servlet engine loads the Servlet class and executes it. ... The web server forwards the HTTP response to your browser in terms of static HTML content.
How can servlet call a JSP error page?
If any type of exception occurs while executing an action, the servlet catches it, sets the javax. servlet. jsp. jspException request attribute to the exception object, and forwards the request to the error JSP page.
