Answer / srikanth

filters are used to preprocessing and postprocessing of
tasks like login,authorization,data compression,data
encoding etc

for this u need to override intit(),dofilter(),and destroy()

Answer / suresh royal

Filter is a special web resource program that is capable of
trapping the request and taking the response of other web
resource programs.

Filter is a interface .

A servlet program which is implemented javax.servlet.Filter
interface is called "Servlet Filter"

Filter having three methods..
==================================
init(FilterConfig fg)
DoFilter(SReq req ,Sres res,FilterChain fc)
destroy()

What is a servlet?

0 Answers  

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which method in doGet or doPost is use to send binary date to server

2 Answers   HCL,

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What are the difference between HttpServlet and GenericServlets?

2 Answers  

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Which http method is said to be non-idempotent and idempotent?

0 Answers  

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What is the importance of init() method in Servlet ?

0 Answers   BirlaSoft,

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waht is the main diference b/w servelts and JSP ?

8 Answers   CAP, HCL,

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What is the difference between encodeRedirectUrl and encodeURL?

0 Answers  

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what is the difference between doGet() and doPost()?

6 Answers   TCS,

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Can we use servlets in JavaScript?

2 Answers  

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What is the use of welcome-file-list?

0 Answers  

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Describe servlet?

0 Answers  

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Is servlet a server side scripting language?

0 Answers  

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