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servlets and text file data

Sri Sar
Ranch Hand

Joined: Mar 25, 2004
Posts: 44
Hi,
i have two text files (abcd.txt and efgh.txt). text file abcd.txt contains names of districts in a country with their area values whereas the file efgh.txt contains the names of the same districts but with their population values. (the text files have only two columns: name of the district and either the area/population values)
now i want to write a servlet that extracts the 'area' values from abcd.txt and 'population' values from efgh.txt and calculates Density ie divides the area values by the population values and obtain the result.
since i am new to Servlets, i am in desperate need of some sort of sample code in proceeding with the above functionality.
thanks in advance.
Jon Entwistle
Ranch Hand

Joined: Feb 20, 2003
Posts: 118
Hi,

A good way to procedd is as follows. To load a file called 'conversion.dat' for the sake of argument, with a path of WEB-INF/currency relative to your application root, put the following in your web.xml (for tomcat at least!) file straight after your opening <webapp> label:



Now from within your servlet, create a File instance using this path:



Note the getServletContext() method must be called from within a servlet.

You can then treat this file in the normal way.

HTH

Jon
[ May 25, 2004: Message edited by: Jon Entwistle ]

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