What is setAttribute used for?

The setAttribute() method is used to set or add an attribute to a particular element and provides a value to it. If the attribute already exists, it only set or changes the value of the attribute.

What is a request dispatcher?

Request Dispatcher is an interface whose implementation defines an object which can dispatch the request to any resources on the server. RequestDispatcher interface is used to forward or include the response of a resource in a Servlet.

What is setAttribute in JSP?

setAttribute(String, object) – This method is used to save an object in session by assigning a unique string to the object. Later, the object can be accessed from the session by using the same String till the session is active.

What is setAttribute in servlet?

This section will describe you about the setAttribute method of request object. setAttribute() method is used to set an attribute to a servlet request in a web application. Attributes set by this method can be reset between requests. This method can be used in Servlet and/or in JSP.

What does setAttribute do in Java?

The setAttribute() method of a SimpleScriptContext class is used to set the value of an attribute in a given scope where the name of the attribute, the value of attribute and scope of the attribute is passed as parameters.

What is the use of RequestDispatcher explain its methods with suitable example?

The RequestDispatcher interface provides the option of dispatching the client’s request to another web resource, which could be an HTML page, another servlet, JSP etc. It provides the following two methods: public void forward(ServletRequest request, ServletResponse response)throws ServletException, java. io.

What is setAttribute in Javascript?

setAttribute() Sets the value of an attribute on the specified element. If the attribute already exists, the value is updated; otherwise a new attribute is added with the specified name and value.

What is RequestDispatcher and how does it work?

Interface RequestDispatcher. Defines an object that receives requests from the client and sends them to any resource (such as a servlet, HTML file, or JSP file) on the server. This interface is intended to wrap servlets, but a servlet container can create RequestDispatcher objects to wrap any type of resource.

Why use RequestDispatcher to forward a request to another resource instead of sendRedirect?

Why use RequestDispatcher to forward a request to another resource, instead of using a sendRedirect? JSP. Redirects are no longer supported in the current servlet API. The RequestDispatcher does not use the reflection API.