Working with text file using jsp

Is it possible to work with text file using jsp? Forexample: I will create "test.txt" file then write in it value "testvalue".

You really shouldn't perform file I/O (or anything else that requires Java code) inside of JSP pages; it's considered bad design. Move that code to a backing bean or a servlet; then you can write all the Java code you need w/o complications.

So I should use servlet to I/O to file. Tnx.