Servlet ServletConfig and ServletContext

Send request to get interview tips in PDF format Personal Interview - Answers to frequently asked questions Tips to earn promotions and perks You can also get your answers published How to write a good CV? How to write a good Cover Letter? Tips to become boss's favorite CareerRide is hiring

List out the difference between ServletConfig and ServletContext?

Answer
Both are interfaces in the package javax.servlet.

• ServletConfig is a servlet configuration object. It is used by a servlet container to pass information to a servlet during initialization.
• The ServletConfig parameters are specified for a particular servlet and are unknown to other servlets.
• The ServletContext object is contained within the ServletConfig object. It is provided by the web server to the servlet when the servlet is initialized.
• ServletContext is an interface which has a set of methods like getServletName(), getServletContext(), getInitParameter(), getInitParameterNames(). The servlet uses to interact with its servlet container. 
• ServletContext is common to all servlets within the same web application. So, servlets use ServletContext to share context information. 

NEXT>>

More Servlets links What is Servlets and explain the advantages of Servlet life cycle? Answer - Servlets are the programs that run under web server environment.... What is the difference between using getSession(true) and getSession(false) methods? Answer - getSession(true) will check whether a session already exists for the user.......... List out the difference between a JavaBean from a Servlet? Answer - Servlets are Java based analog to CGI programs, implemented by means of ..........