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getHeaderNames() can be used to find out information like what is the request type that is comming like GET or POST,what is the browser the request is comming from,etc.More details can be found from the link below:<br />
<a href="http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Request-Headers.html" rel="ugc">http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Request-Headers.html</a>
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getHeaderNames() can be used to find out information like what is the request type that is comming like GET or POST,what is the browser the request is comming from,etc.More details can be found from the link below:
http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Request-Headers.html [http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Request-Headers.html]

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This still doesn't give me the use of it.<br />
Why one would like to know if it's post or get request, browser, etc .<br />
<br />

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This still doesn't give me the use of it.
Why one would like to know if it's post or get request, browser, etc .



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Thank you.<br />
Can U tell me about the filters or maybe a link ?
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Thank you.
Can U tell me about the filters or maybe a link ?

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<a href="http://javaboutique.internet.com/tutorials/Servlet_Filters/" rel="ugc">http://javaboutique.internet.com/tutorials/Servlet_Filters/</a><br />
<br />
<a href="http://www.j2eegeek.com/blog/2004/04/26/servlet-filters-part-ii/" rel="ugc">http://www.j2eegeek.com/blog/2004/04/26/servlet-filters-part-ii/</a><br />
<br />
<a href="http://www.oracle.com/technology/sample_code/tutorials/fbs10g/files/access.pdf" rel="ugc nofollow">http://www.oracle.com/technology/sample_code/tutorials/fbs10g/files/access.pdf</a>
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http://javaboutique.internet.com/tutorials/Servlet_Filters/ [http://javaboutique.internet.com/tutorials/Servlet_Filters/]

http://www.j2eegeek.com/blog/2004/04/26/servlet-filters-part-ii/ [http://www.j2eegeek.com/blog/2004/04/26/servlet-filters-part-ii/]

http://www.oracle.com/technology/sample_code/tutorials/fbs10g/files/access.pdf [http://www.oracle.com/technology/sample_code/tutorials/fbs10g/files/access.pdf]

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I know the function &nbsp;getHeaderNames<br />
returns the http headers.<br />
What can be the use of it ?<br />
Thank you.
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I know the function  getHeaderNames
returns the http headers.
What can be the use of it ?
Thank you.

getHeaderNames

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.