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Question: What is the difference between servlet context and servlet config




Answer: ServletConfig is a servlet configuration object used by a servlet container used to pass information to a servlet during initialization. All of its initialization parameters can ONLY be set in deployment descriptor.

The ServletContext object is contained within the ServletConfig object, which the Web server provides the servlet when the servlet is initialized.

You can specify param-value pairs for ServletContext object in <context-param> tags in web.xml file.

The ServletConfig parameters are specified for a particular servlet and are unknown to other servlets.

The ServletContext parameters are specified for an entire application outside of any particular servlet and are available to all the servlets within that application.



Category Servlet Interview Questions & Answers - Exam Mode / Learning Mode
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Question: What is the difference between servlet context and servlet config





Answer:

ServletConfig is a servlet configuration object used by a servlet container used to pass information to a servlet during initialization. All of its initialization parameters can ONLY be set in deployment descriptor.

The ServletContext object is contained within the ServletConfig object, which the Web server provides the servlet when the servlet is initialized.

You can specify param-value pairs for ServletContext object in <context-param> tags in web.xml file.

The ServletConfig parameters are specified for a particular servlet and are unknown to other servlets.

The ServletContext parameters are specified for an entire application outside of any particular servlet and are available to all the servlets within that application.
Source: CoolInterview.com


ServletConfig defines an object generated by a servlet engine.

ServletContext defines an object to be created by a servlet engine. Source: CoolInterview.com

Answered by: Bhoomi | Date: 7/20/2009 | Contact Bhoomi Contact Bhoomi

ServeltContext is only one for total web application , but ServeltConfig is available for each individual servelts in that application. Source: CoolInterview.com

Answered by: Vamshi Muraharishetty | Date: 11/19/2009 | Contact Vamshi Muraharishetty Contact Vamshi Muraharishetty

ServletConfig object is per servlet whereas ServletContext object is per application per jvm. and from one of the ServletConfig methods we can get ServletContext object. Source: CoolInterview.com

Answered by: Madhu Saini | Date: 8/1/2010 | Contact Madhu Saini Contact Madhu Saini


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