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JavaInterviewPoint

Java Development Tutorials

Difference between ServletConfig and ServletContext

November 20, 2014 by javainterviewpoint Leave a Comment

ServletConfig and ServletContext are the two import interfaces in ServletAPI, Lets see whats the difference between them and how to use.

ServletConfig

  • ServletConfig is available in the javax.servlet.* package.
  • ServletConfig object will be created during the initialization(init()) of the servlet.

  • Config is available only for that particular servlet.
  • ServletConfig object is created the moment we give the first request.
  • getServletConfig() method is used to get the config object.

Code Snippet

<servlet>
 <servlet-name>TestServlet</servlet-name>
 <servlet-class>com.javainterviewpoint.TestServlet</servlet-class>
 <init-param>
 <param-name>name</param-name>
 <param-value>JavaInterviewPoint</param-value>
 </init-param>
</servlet>

ServletContext

  • ServletContext is also available in the javax.servlet.* package.
  • ServletContext object will be created during the deployment of the web application.
  • Context is available for the entire web application.
  • ServletContext object is created well even before we give the first request.
  • getServletContext () method is used to get the context object.

Code Snippet

<context-param>
 <param-name>name</param-name>
 <param-value>JavaInterviewPoint</param-value>
</context-param>

Other interesting articles which you may like …

  • How to change Tomcat default port from 8080 to Some Other?
  • Life Cycle of a Servlet
  • JSP Custom tags
  • Access body of Custom Tag in JSP
  • Attributes In Jsp Custom Tag
  • Running Your First Servlet Application
  • Servlet Interface
  • GenericServlet class
  • HttpServlet class
  • Difference Between GenericServlet and HttpServlet
  • welcome-file-list in web.xml of Servlets
  • Get Configuration information – ServletConfig
  • ServletContext Interface in Servlets
  • Obtaining HTTP Request Headers from HttpServletRequest
  • ServletRequest Interface – Servlets
  • ServletResponse Interface – Servlets
  • Get Query String from Servlet Request

Filed Under: J2EE, Java, JSP, Servlets Tagged With: difference, Servlet, ServletConfig, ServletConfig and ServletContext, ServletContext

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