What are the three basic method of JSP?

What are the three basic method of JSP?

JSP describes structures (of both data and programs) using three basic structures – sequence, iteration, and selection (or alternatives). These structures are diagrammed as (in effect) a visual representation of a regular expression.

How many stages are there in JSP life cycle?

Compilation process of JSP page involves three steps: Parsing of JSP. Turning JSP into servlet. Compiling the servlet.

Which method is called multiple times in JSP life cycle?

In this, the request and response object of the JSP Page is handled using the _jspservice() method. The container invokes the _jspservice() method to handle the request raised by the JSP page. This method handles the GET, POST request just like the servlet service() method. It can be called multiple times.

Which JSP lifecycle methods can be overridden?

JSP contains three life cycle methods namely jspInit( ), _jspService() and jspDestroy(). In these, jspInit() and jspDestroy() can be overridden and we cannot override _jspService().

Which JSP life cycle is correct order?

Which one is the correct order of phases in JSP life cycle? Explanation: The correct order is Compilation, Initialization, Execution, Cleanup.

What is JSP example?

JSP (JavaServer Pages) is server side technology to create dynamic java web application. JSP can be thought as an extension to servlet technology because it provides features to easily create user views. JSP Page consists of HTML code and provide option to include java code for dynamic content.

What JSP means?

Jakarta Server Pages
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.

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 is the JSP init () method?

The jspInit() method is invoked when the JSP page is initialized. It is the responsibility of the JSP implementation (and of the class mentioned by the extends attribute, if present) that at this point invocations to the getServletConfig() method will return the desired value.

What are JSP elements?

There are three types of JSP elements you can use: directive, action, and scripting.

What are the steps of the JSP life cycle?

Translation phase: where the JSP file gets converted into the servlet file. Compilation phase: where servlet file gets converted to servlet class. Clean up of the JSP, here servlet container will call jspDestroy () method. Now let’s elaborate on the above-mentioned steps to have a clearer picture:

What is the life cycle of a Java Server Page?

A Java Server Page life cycle is defined as the process started with its creation which later translated to a servlet and afterward servlet lifecycle comes into play. This is how the process goes on until its destruction. Following steps are involved in JSP life cycle: Compilation of JSP page (Compilation of JSP into test.java)

When is jspinit called in the life cycle?

The container manages one or more instance by providing response to requests. jspInit () method is called only once during the life cycle immediately after the generation of Servlet instance from JSP.

What is the destruction phase of a JSP?

The destruction phase of the JSP life cycle represents when a JSP is being removed from use by a container. The jspDestroy () method is the JSP equivalent of the destroy method for servlets. Override jspDestroy when you need to perform any cleanup, such as releasing database connections or closing open files.