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Reading a textarea as a stream

 
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In my jsp page i have several text fields and a textarea. The text area is an editor window component. It can include text files as well as image files. so i want to read that text area as input stream and save in the database as a blob. How should i read the text area only as a stream.
 
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HTTP make no such provisions. When the form is submitted, the value of the text area will be submitted as a string value just like any other control.
 
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